Add support for the ISOTEL NetClamps VSN board

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3321 42af7a65-404d-4744-a932-0658087f49c3
author: patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> 2011-02-27 15:42:07 +0000
committer: patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> 2011-02-27 15:42:07 +0000
commit: b1374fdcf46709b5e014dc9dbfc78e0394e8d6aa (patch)
tree: 1a350b3fb02cc7bddae7d11cb54cdcb6a0629af5 /nuttx
parent: cc5f5a4daa8d8928bf85f6dc653602133511586f (diff)
download: nuttx-b1374fdcf46709b5e014dc9dbfc78e0394e8d6aa.tar.gz
nuttx-b1374fdcf46709b5e014dc9dbfc78e0394e8d6aa.tar.bz2
nuttx-b1374fdcf46709b5e014dc9dbfc78e0394e8d6aa.zip
32 files changed, 3774 insertions, 63 deletions
diff --git a/nuttx/ChangeLog b/nuttx/ChangeLog
index eb27790d0..b2575af19 100644
--- a/nuttx/ChangeLog
+++ b/nuttx/ChangeLog
@@ -1468,5 +1468,11 @@
 	* Rename arch/pjrc-8051 to arch/8051
 	* configs/ne64badge -- Add a configuration for the Future Electronics Group
 	  NE64 Badge development board (Freescale MC9S12NE64)
-
-
+	* Changes contributed by Uros Platise:
+	  - Add support for the STM32F103RET6
+	  - configs/vsn - Support for the ISOTEL NetClamps VSN V1.2 ready2go sensor
+	    network platform
+	* arch/hc, configs/ne64badge -- Development is complete for the Freescale
+	  mc9s12ne64 on the Future Electronics Group NE64 /PoE Badge board.  Howeve,
+	  this port remains untested until I figure out this BDM / Code Warrior
+	  and paged build thing
diff --git a/nuttx/Documentation/NuttX.html b/nuttx/Documentation/NuttX.html
index b58bc9524..57c2b8723 100644
--- a/nuttx/Documentation/NuttX.html
+++ b/nuttx/Documentation/NuttX.html
@@ -8,7 +8,7 @@
   <tr align="center" bgcolor="#e4e4e4">
     <td>
       <h1><big><font color="#3c34ec"><i>NuttX RTOS</i></font></big></h1>
-      <p>Last Updated: February 25, 2011</p>
+      <p>Last Updated: February 27, 2011</p>
     </td>
   </tr>
 </table>
@@ -1170,21 +1170,41 @@
   <td>
     <p>
       <b>STMicro STM32F103x</b>.
-      This port uses the <a href=" http://www.st.com/">STMicro</a> STM3210E-EVAL development board that
-      features the STM32F103ZET6 MCU.
-      This port uses a GNU arm-elf toolchain* under either Linux or Cygwin (with native Windows GNU
+      Support for three MCUs and two board configurations are available.
+      MCU support includes: STM32F103ZET6, STM32F103RET6, and STM32F107VC.
+      Board support includes:
+    </p>
+    <ol>
+      <li>
+        This port uses the <a href=" http://www.st.com/">STMicro</a> STM3210E-EVAL development board that
+        features the STM32F103ZET6 MCU.
+      </li>
+      <li>
+        ISOTEL NetClamps VSN V1.2 ready2go sensor network platform based on the
+        STMicro STM32F103RET6.  Contributed by Uros Platise.
+      </li>
+    </ol>
+    <p>
+      These ports uses a GNU arm-elf toolchain* under either Linux or Cygwin (with native Windows GNU
       tools or Cygwin-based GNU tools).
     </p>
     <ul>
       <p>
         <b>STATUS:</b>
-        The basic STM32 port was released in NuttX version 0.4.12. The basic port includes boot-up
-        logic, interrupt driven serial console, and system timer interrupts.
-        The 0.4.13 release added support for SPI, serial FLASH, and USB device.;
-        The 4.14 release added support for buttons and SDIO-based MMC/SD and verifed DMA support.
-        Verified configurations are available for NuttX OS test, the NuttShell (NSH) example,
-        the USB serial device class, and the USB mass storage device class example.
       </p>
+      <ul>
+        <li>
+          The basic STM32 port was released in NuttX version 0.4.12. The basic port includes boot-up
+          logic, interrupt driven serial console, and system timer interrupts.
+          The 0.4.13 release added support for SPI, serial FLASH, and USB device.;
+          The 4.14 release added support for buttons and SDIO-based MMC/SD and verifed DMA support.
+          Verified configurations are available for NuttX OS test, the NuttShell (NSH) example,
+          the USB serial device class, and the USB mass storage device class example.
+        </li>
+        <li>
+          Support for the NetClamps VSN was included in version 5.18 of NuttX.
+        </li>
+      </ul>
       <p>
         <b>Development Environments:</b>
         1) Linux with native Linux GNU toolchain, 2) Cygwin with Cygwin GNU toolchain, or 3) Cygwin
@@ -1231,7 +1251,7 @@
         1) Linux with native Linux GNU toolchain, 2) Cygwin with Cygwin GNU toolchain, or 3) Cygwin
         with Windows native toolchain (CodeSourcery or devkitARM).  A DIY toolchain for Linux
         or Cygwin is provided by the NuttX
-        <a href="http://sourceforge.net/project/showfiles.php?group_id=189573&package_id=224585">buildroot</a>
+        <a href="http://sourceforge.net/projects/nuttx/files/buildroot/">buildroot</a>
         package.
       </p>
      </ul>
@@ -1337,7 +1357,7 @@
         1) Linux with native Linux GNU toolchain, 2) Cygwin with Cygwin GNU toolchain, or 3) Cygwin
         with Windows native toolchain (CodeSourcery or devkitARM).  A DIY toolchain for Linux
         or Cygwin is provided by the NuttX
-        <a href="http://sourceforge.net/project/showfiles.php?group_id=189573&package_id=224585">buildroot</a>
+        <a href="http://sourceforge.net/projects/nuttx/files/buildroot/">buildroot</a>
         package.
       </p>
      </ul>
@@ -1380,14 +1400,27 @@
   <td>
     <p>
       <b>MC9S12NE64</b>.
-      This port uses the Freescale DEMO9S12NE64 Evaluation Board with a GNU arm-elf toolchain* under Linux or Cygwin.
+      Support for the MC9S12NE64 MCU and two boards are included:
+    </p>
+    <ul>
+      <li>
+        The Freescale DEMO9S12NE64 Evaluation Board, and
+      </li>
+      <li>
+        The Future Electronics Group NE64 /PoE Badge board.
+      </li>
+    </ul>
+    <p>
+      Both use a GNU arm-elf toolchain* under Linux or Cygwin.
+      The NuttX <a href="http://sourceforge.net/projects/nuttx/files/buildroot/">buildroot</a> provides a properly patched GCC 3.4.4 toolchain that is highly optimized for the m9s12x family.
     </p>
     <ul>
       <p>
        <b>STATUS:</b>
-        This port only fragmentary as of NuttX-5.0.  Some initial pieces appear in that
-        release, but much more is needed.  Time permitting, the HCS12 port may be available
-        int NuttX5.1.
+         Coding is complete for the MC9S12NE64 and for the NE64 Badge board.
+         However, testing has not yet begun due to issues with BDMs, Code Warrior, and
+         the paging in the build process.
+         Progress is slow, but I hope to see a fully verified MC9S12NE64 port in the near future.
       </p>
     </ul>
   </td>
@@ -1720,7 +1753,7 @@ m68k, m68hc11, m68hc12, and SuperH ports.</blockquote>
       This combination works well too.
       It works just as well as the native Linux environment except
       that compilation and build times are a little longer.
-      The custom NuttX buildroot referenced above may be build in
+      The custom NuttX <a href="http://sourceforge.net/projects/nuttx/files/buildroot/">buildroot</a> referenced above may be build in
       the Cygwin environment as well.
     </p>
   </td>
@@ -2040,11 +2073,19 @@ nuttx-5.18 2011-xx-xx Gregory Nutt &lt;spudmonkey@racsa.co.cr&gt;
        a USB host HID keyboard configuraion.
     * drivers/usbhost/hid_parser.c -- Leverages the LUFA HID parser written by
       Dean Camera.
-	* examples/nsh -- Correct an usage of getopt(): If you stop calling getopt()
-	  before all parameters are parsed, you can leave getopt() in a strange state.
+    * examples/nsh -- Correct an usage of getopt(): If you stop calling getopt()
+      before all parameters are parsed, you can leave getopt() in a strange state.
     * Rename arch/pjrc-8051 to arch/8051
-	* configs/ne64badge -- Add a configuration for the Future Electronics Group
-	  NE64 Badge development board (Freescale MC9S12NE64)
+    * configs/ne64badge -- Add a configuration for the Future Electronics Group
+      NE64 Badge development board (Freescale MC9S12NE64)
+    * Changes contributed by Uros Platise:
+      - Add support for the STM32F103RET6
+      - configs/vsn - Support for the ISOTEL NetClamps VSN V1.2 ready2go sensor
+        network platform
+    * arch/hc, configs/ne64badge -- Development is complete for the Freescale
+      mc9s12ne64 on the Future Electronics Group NE64 /PoE Badge board.  Howeve,
+      this port remains untested until I figure out this BDM / Code Warrior
+      and paged build thing
 
 pascal-2.1 2011-xx-xx Gregory Nutt &lt;spudmonkey@racsa.co.cr&gt;
 
diff --git a/nuttx/Documentation/README.html b/nuttx/Documentation/README.html
index 47686f86a..0338330fa 100755
--- a/nuttx/Documentation/README.html
+++ b/nuttx/Documentation/README.html
@@ -9,7 +9,7 @@
   <tr align="center" bgcolor="#e4e4e4">
     <td>
       <h1><big><font color="#3c34ec"><i>NuttX README Files</i></font></big></h1>
-      <p>Last Updated: February 24, 2010</p>
+      <p>Last Updated: February 27, 2010</p>
     </td>
   </tr>
 </table>
@@ -89,6 +89,8 @@
  |   |   |- <a href="configs/mx1ads/include/README.txt?view=log">include/README.txt</a>
  |   |   |- <a href="configs/mx1ads/src/README.txt?view=log">src/README.txt</a>
  |   |   `- <a href="configs/mx1ads/README.txt?view=log"><b><i>README.txt</i></b></a>
+ |   |- ne64badge/
+ |   |   `- <a href="configs/ne64badge/README.txt?view=log"><b><i>README.txt</i></b></a>
  |   |- ntosd-dm320/
  |   |   |- <a href="configs/ntosd-dm320/doc/README.txt?view=log">doc/README.txt</a>
  |   |   |- <a href="configs/ntosd-dm320/include/README.txt?view=log">include/README.txt</a>
@@ -129,6 +131,8 @@
  |   |   |- <a href="configs/us7032evb1/include/README.txt?view=log">include/README.txt</a>
  |   |   |- <a href="configs/us7032evb1/src/README.txt?view=log">src/README.txt</a>
  |   |   `- <a href="configs/us7032evb1/README.txt?view=log"><b><i>README.txt</i></b></a>
+ |   |- vsn/
+ |   |   `- <a href="configs/vsn/README.txt?view=log"><b><i>README.txt</i></b></a>
  |   |- xtrs/
  |   |   |- <a href="configs/xtrs/include/README.txt?view=log">include/README.txt</a>
  |   |   |- <a href="configs/xtrs/src/README.txt?view=log">src/README.txt</a>
diff --git a/nuttx/README.txt b/nuttx/README.txt
index 48b8df774..4ae870ee6 100755
--- a/nuttx/README.txt
+++ b/nuttx/README.txt
@@ -302,6 +302,8 @@ Below is a guide to the available README files in the NuttX source tree:
  |   |   |- include/README.txt
  |   |   |- src/README.txt
  |   |   `- README.txt
+ |   |- ne63badge/
+ |   |   `- README.txt
  |   |- ntosd-dm320/
  |   |   |- doc/README.txt
  |   |   |- include/README.txt
@@ -342,6 +344,8 @@ Below is a guide to the available README files in the NuttX source tree:
  |   |   |- include/README.txt
  |   |   |- src/README.txt
  |   |   `- README.txt
+ |   |- vsn/
+ |   |   `- README.txt
  |   |- xtrs/
  |   |   |- include/README.txt
  |   |   |- src/README.txt
diff --git a/nuttx/arch/arm/src/common/up_idle.c b/nuttx/arch/arm/src/common/up_idle.c
index 4927ce0e8..ba6affb0e 100644
--- a/nuttx/arch/arm/src/common/up_idle.c
+++ b/nuttx/arch/arm/src/common/up_idle.c
@@ -1,7 +1,7 @@
 /****************************************************************************
  *  arch/arm/src/common/up_idle.c
  *
- *   Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2007-2009, 2011 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -83,5 +83,11 @@ void up_idle(void)
 
   sched_process_timer();
 #endif
+
+  /* Sleep until an interrupt occurs to save power */
+
+#if 0
+  asm("WFI");  /* For example */
+#endif
 }
 
diff --git a/nuttx/arch/arm/src/stm32/chip.h b/nuttx/arch/arm/src/stm32/chip.h
index f6430b2c1..f916f1682 100755
--- a/nuttx/arch/arm/src/stm32/chip.h
+++ b/nuttx/arch/arm/src/stm32/chip.h
@@ -1,7 +1,7 @@
 /************************************************************************************
  * arch/arm/src/stm32/chip.h
  *
- *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2009, 2011 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -48,11 +48,11 @@
 
 /* Get customizations for each supported chip (only the STM32F103Z right now) */
 
-#if defined(CONFIG_ARCH_CHIP_STM32F103ZET6)
-#  undef CONFIG_STM32_LOWDENSITY            /* STM32F101x, STM32F102x and STM32F103x w/ 16/32 Kbytes */
-#  undef  CONFIG_STM32_MEDIUMDENSITY        /* STM32F101x, STM32F102x and STM32F103x w/ 64/128 Kbytes */
+#if defined(CONFIG_ARCH_CHIP_STM32F103ZET6) 
+#  undef CONFIG_STM32_LOWDENSITY             /* STM32F101x, STM32F102x and STM32F103x w/ 16/32 Kbytes */
+#  undef  CONFIG_STM32_MEDIUMDENSITY         /* STM32F101x, STM32F102x and STM32F103x w/ 64/128 Kbytes */
 #  define CONFIG_STM32_HIGHDENSITY       1   /* STM32F101x  and STM32F103x w/ 256/512 Kbytes */
-#  undef  CONFIG_STM32_CONNECTIVITYLINE     /* STM32F105x and STM32F107x */
+#  undef  CONFIG_STM32_CONNECTIVITYLINE      /* STM32F105x and STM32F107x */
 #  define STM32_NATIM                    1   /* One advanced timers TIM1 */
 #  define STM32_NGTIM                    4   /* General timers TIM2,3,4,5 */
 #  define STM32 NBTIM                    0   /* No basic timers */
@@ -67,11 +67,32 @@
 #  define STM32_NDAC                     0   /* No DAC */
 #  define STM32_NCRC                     0   /* No CRC */
 #  define STM32_NTHERNET                 0   /* No ethernet */
+
+#elif defined(CONFIG_ARCH_CHIP_STM32F103RET6)
+#  undef CONFIG_STM32_LOWDENSITY             /* STM32F101x, STM32F102x and STM32F103x w/ 16/32 Kbytes */
+#  undef  CONFIG_STM32_MEDIUMDENSITY         /* STM32F101x, STM32F102x and STM32F103x w/ 64/128 Kbytes */
+#  define CONFIG_STM32_HIGHDENSITY       1   /* STM32F101x  and STM32F103x w/ 256/512 Kbytes */
+#  undef  CONFIG_STM32_CONNECTIVITYLINE      /* STM32F105x and STM32F107x */
+#  define STM32_NATIM                    1   /* One advanced timers TIM1 */
+#  define STM32_NGTIM                    4   /* General timers TIM2,3,4,5 */
+#  define STM32 NBTIM                    0   /* No basic timers */
+#  define STM32_NDMA                     2   /* DMA1-2 */
+#  define STM32_NSPI                     2   /* SPI1-2 */
+#  define STM32_NUSART                   3   /* USART1-3 */
+#  define STM32_NI2C                     2   /* I2C1-2 */
+#  define STM32_NCAN                     1   /* bxCAN1 */
+#  define STM32_NSDIO                    1   /* SDIO */
+#  define STM32_NGPIO                    112 /* GPIOA-G */
+#  define STM32_NADC                     1   /* ADC1 */
+#  define STM32_NDAC                     0   /* No DAC */
+#  define STM32_NCRC                     0   /* No CRC */
+#  define STM32_NTHERNET                 0   /* No ethernet */
+
 #elif defined(CONFIG_ARCH_CHIP_STM32F107VC)
-#  undef CONFIG_STM32_LOWDENSITY            /* STM32F101x, STM32F102x and STM32F103x w/ 16/32 Kbytes */
-#  undef  CONFIG_STM32_MEDIUMDENSITY        /* STM32F101x, STM32F102x and STM32F103x w/ 64/128 Kbytes */
-#  undef CONFIG_STM32_HIGHDENSITY           /* STM32F101x  and STM32F103x w/ 256/512 Kbytes */
-#  define  CONFIG_STM32_CONNECTIVITYLINE 1  /* STM32F105x and STM32F107x */
+#  undef CONFIG_STM32_LOWDENSITY             /* STM32F101x, STM32F102x and STM32F103x w/ 16/32 Kbytes */
+#  undef  CONFIG_STM32_MEDIUMDENSITY         /* STM32F101x, STM32F102x and STM32F103x w/ 64/128 Kbytes */
+#  undef CONFIG_STM32_HIGHDENSITY            /* STM32F101x  and STM32F103x w/ 256/512 Kbytes */
+#  define  CONFIG_STM32_CONNECTIVITYLINE 1   /* STM32F105x and STM32F107x */
 #  define STM32_NATIM                    1   /* One advanced timers TIM1 */
 #  define STM32_NGTIM                    4   /* General timers TIM2,3,4,5 */
 #  define STM32 NBTIM                    2   /* Two basic timers, TIM6-7 */
@@ -86,6 +107,7 @@
 #  define STM32_NDAC                     2   /* DAC1-2 */
 #  define STM32_NCRC                     1   /* CRC */
 #  define STM32_NTHERNET                 1   /* 100/100 Ethernet MAC */
+
 #else
 #  error "Unsupported STM32 chip"
 #endif
diff --git a/nuttx/arch/arm/src/stm32/stm32_flash.h b/nuttx/arch/arm/src/stm32/stm32_flash.h
index 414641aa1..19ee5e172 100755
--- a/nuttx/arch/arm/src/stm32/stm32_flash.h
+++ b/nuttx/arch/arm/src/stm32/stm32_flash.h
@@ -1,7 +1,7 @@
 /************************************************************************************
  * arch/arm/src/stm32/stm32_flash.h
  *
- *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2009, 2011 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -79,7 +79,7 @@
 #define ACR_LATENCY_SHIFT          (0)
 #define ACR_LATENCY_MASK           (7 << ACR_LATENCY_SHIFT)
 #  define ACR_LATENCY_0            (0 << ACR_LATENCY_SHIFT)  /* FLASH Zero Latency cycle */
-#  define ACR_LATENCY_1            (1 << ACR_LATENCY_SHIFT)) /* FLASH One Latency cycle */
+#  define ACR_LATENCY_1            (1 << ACR_LATENCY_SHIFT)  /* FLASH One Latency cycle */
 #  define ACR_LATENCY_2            (2 << ACR_LATENCY_SHIFT)  /* FLASH Two Latency cycles */
 #define ACR_HLFCYA                 (1 << 3)                  /* FLASH half cycle access */
 #define ACR_PRTFBE                 (1 << 4)                  /* FLASH prefetch enable */
diff --git a/nuttx/arch/arm/src/stm32/stm32_internal.h b/nuttx/arch/arm/src/stm32/stm32_internal.h
index a98d579dd..f5094d50a 100755
--- a/nuttx/arch/arm/src/stm32/stm32_internal.h
+++ b/nuttx/arch/arm/src/stm32/stm32_internal.h
@@ -1,7 +1,7 @@
 /************************************************************************************
  * arch/arm/src/stm32/stm32_internal.h
  *
- *   Copyright (C) 2009-2010 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2009-2011 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -167,9 +167,11 @@
  * include that header file.  NOTE: You can get the chip-specific pin-mapping info
  * from the chip datasheet.
  */
-
+ 
 #if defined(CONFIG_ARCH_CHIP_STM32F103ZET6)
 #  include "stm32f103ze_pinmap.h"
+#elif defined(CONFIG_ARCH_CHIP_STM32F103RET6)
+#  include "stm32f103re_pinmap.h"
 #elif defined(CONFIG_ARCH_CHIP_STM32F107VC)
 #  include "stm32f107vc_pinmap.h"
 #endif
diff --git a/nuttx/arch/arm/src/stm32/stm32_rcc.c b/nuttx/arch/arm/src/stm32/stm32_rcc.c
index 22c67d120..c789a5643 100755
--- a/nuttx/arch/arm/src/stm32/stm32_rcc.c
+++ b/nuttx/arch/arm/src/stm32/stm32_rcc.c
@@ -1,7 +1,7 @@
 /****************************************************************************
  * arch/arm/src/stm32/stm32_rcc.c
  *
- *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2009, 2011 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -364,28 +364,21 @@ static inline void rcc_enableapb2(void)
 }
 
 /****************************************************************************
- * Global Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: stm32_clockconfig
+ * Name: stm32_stdclockconfig
  *
  * Description:
- *   Called to change to new clock based on settings in board.h.
- *   NOTE:  This logic needs to be extended so that we can selected low-power
- *   clocking modes as well!
+ *   Called to set clocking based on standard definitions in board.h.
+ *   NOTE:  This logic would need to be extended if you need to select low-
+ *   power clocking modes!
  *
  ****************************************************************************/
 
-void stm32_clockconfig(void)
+#if !defined(CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG)
+static inline void stm32_stdclockconfig(void)
 {
   uint32_t regval;
   volatile int32_t timeout;
 
-  /* Make sure that we are starting in the reset state */
-
-  rcc_reset();
-
   /* Enable External High-Speed Clock (HSE) */
  
   regval  = getreg32(STM32_RCC_CR);
@@ -465,9 +458,45 @@ void stm32_clockconfig(void)
   
     while ((getreg32(STM32_RCC_CFGR) & RCC_CFGR_SWS_MASK) != STM32_SYSCLK_SWS);
   }
+}
+#endif
 
-  /* Enable peripheral clocking */
+/****************************************************************************
+ * Global Functions
+ ****************************************************************************/
 
+/****************************************************************************
+ * Name: stm32_clockconfig
+ *
+ * Description:
+ *   Called to change to new clock based on settings in board.h.
+ *   NOTE:  This logic needs to be extended so that we can selected low-power
+ *   clocking modes as well!
+ *
+ ****************************************************************************/
+
+void stm32_clockconfig(void)
+{
+  /* Make sure that we are starting in the reset state */
+
+  rcc_reset();
+  
+#if defined(CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG)
+
+  /* Invoke Board Custom Clock Configuration */
+
+  stm32_board_clockconfig();
+  
+#else
+
+  /* Invoke standard, fixed clock configuration based on definitions in board.h */
+
+  stm32_stdclockconfig();
+
+#endif
+
+  /* Enable peripheral clocking */
+  
   rcc_enableahb();
   rcc_enableapb2();
   rcc_enableapb1();
diff --git a/nuttx/arch/arm/src/stm32/stm32f103re_pinmap.h b/nuttx/arch/arm/src/stm32/stm32f103re_pinmap.h
new file mode 100644
index 000000000..fea301abb
--- /dev/null
+++ b/nuttx/arch/arm/src/stm32/stm32f103re_pinmap.h
@@ -0,0 +1,330 @@
+/************************************************************************************
+ * arch/arm/src/stm32/stm32f103re_pinmap.h
+ *
+ *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2011 Uros Platise. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *           Uros Platise <uros.platise@isotel.eu>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+#ifndef __ARCH_ARM_SRC_STM32_STM32F103RE_PINMAP_H
+#define __ARCH_ARM_SRC_STM32_STM32F103RE_PINMAP_H
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+/************************************************************************************
+ * Pre-processor Definitions
+ ************************************************************************************/
+
+/* Alternate Pin Functions: */
+
+#if defined(CONFIG_STM32_TIM1_FULL_REMAP)
+#  define GPIO_TIM1_ETR     (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTE|GPIO_PIN7)
+#  define GPIO_TIM1_CH1IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTE|GPIO_PIN9)
+#  define GPIO_TIM1_CH1OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTE|GPIO_PIN9)
+#  define GPIO_TIM1_CH2IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTE|GPIO_PIN11)
+#  define GPIO_TIM1_CH2OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTE|GPIO_PIN11)
+#  define GPIO_TIM1_CH3IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTE|GPIO_PIN13)
+#  define GPIO_TIM1_CH3OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTE|GPIO_PIN13)
+#  define GPIO_TIM1_CH4IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTE|GPIO_PIN14)
+#  define GPIO_TIM1_CH4OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTE|GPIO_PIN14)
+#  define GPIO_TIM1_BKIN    (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTE|GPIO_PIN15)
+#  define GPIO_TIM1_CH1N    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTE|GPIO_PIN8)
+#  define GPIO_TIM1_CH2N    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTE|GPIO_PIN10)
+#  define GPIO_TIM1_CH3N    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTE|GPIO_PIN12)
+#elif defined(CONFIG_STM32_TIM1_PARTIAL_REMAP)
+#  define GPIO_TIM1_ETR     (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN12)
+#  define GPIO_TIM1_CH1IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN8)
+#  define GPIO_TIM1_CH1OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN8)
+#  define GPIO_TIM1_CH2IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN9)
+#  define GPIO_TIM1_CH2OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN9)
+#  define GPIO_TIM1_CH3IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN10)
+#  define GPIO_TIM1_CH3OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN10)
+#  define GPIO_TIM1_CH4IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN11)
+#  define GPIO_TIM1_CH4OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN11)
+#  define GPIO_TIM1_BKIN    (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN6)
+#  define GPIO_TIM1_CH1N    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN7)
+#  define GPIO_TIM1_CH2N    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN0)
+#  define GPIO_TIM1_CH3N    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN1)
+#else
+#  define GPIO_TIM1_ETR     (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN12)
+#  define GPIO_TIM1_CH1IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN8)
+#  define GPIO_TIM1_CH1OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN8)
+#  define GPIO_TIM1_CH2IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN9)
+#  define GPIO_TIM1_CH2OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN9)
+#  define GPIO_TIM1_CH3IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN10)
+#  define GPIO_TIM1_CH3OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN10)
+#  define GPIO_TIM1_CH4IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN11)
+#  define GPIO_TIM1_CH4OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN11)
+#  define GPIO_TIM1_BKIN    (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN12)
+#  define GPIO_TIM1_CH1N    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN13)
+#  define GPIO_TIM1_CH2N    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN14)
+#  define GPIO_TIM1_CH3N    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN15)
+#endif
+
+#if defined(CONFIG_STM32_TIM2_FULL_REMAP)
+#  define GPIO_TIM2_ETR     (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN15)
+#  define GPIO_TIM2_CH1IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN15)
+#  define GPIO_TIM2_CH1OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN15)
+#  define GPIO_TIM2_CH2IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN3)
+#  define GPIO_TIM2_CH2OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN3)
+#  define GPIO_TIM2_CH3IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN10)
+#  define GPIO_TIM2_CH3OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN10)
+#  define GPIO_TIM2_CH4IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN11)
+#  define GPIO_TIM2_CH4OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN11)
+#elif defined(CONFIG_STM32_TIM2_PARTIAL_REMAP_1)
+#  define GPIO_TIM2_ETR     (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN15)
+#  define GPIO_TIM2_CH1IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN15)
+#  define GPIO_TIM2_CH1OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN15)
+#  define GPIO_TIM2_CH2IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN3)
+#  define GPIO_TIM2_CH2OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN3)
+#  define GPIO_TIM2_CH3IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN2)
+#  define GPIO_TIM2_CH3OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN2)
+#  define GPIO_TIM2_CH4IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN3)
+#  define GPIO_TIM2_CH4OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN3)
+#elif defined(CONFIG_STM32_TIM2_PARTIAL_REMAP_2)
+#  define GPIO_TIM2_ETR     (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN0)
+#  define GPIO_TIM2_CH1IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN0)
+#  define GPIO_TIM2_CH1OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN0)
+#  define GPIO_TIM2_CH2IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN1)
+#  define GPIO_TIM2_CH2OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN1)
+#  define GPIO_TIM2_CH3IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN10)
+#  define GPIO_TIM2_CH3OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN10)
+#  define GPIO_TIM2_CH4IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN11)
+#  define GPIO_TIM2_CH4OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN11)
+#else
+#  define GPIO_TIM2_ETR     (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN0)
+#  define GPIO_TIM2_CH1IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN0)
+#  define GPIO_TIM2_CH1OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN0)
+#  define GPIO_TIM2_CH2IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN1)
+#  define GPIO_TIM2_CH2OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN1)
+#  define GPIO_TIM2_CH3IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN2)
+#  define GPIO_TIM2_CH3OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN2)
+#  define GPIO_TIM2_CH4IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN3)
+#  define GPIO_TIM2_CH4OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN3)
+#endif
+
+#if defined(CONFIG_STM32_TIM3_FULL_REMAP)
+#  define GPIO_TIM3_CH1IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTC|GPIO_PIN6)
+#  define GPIO_TIM3_CH1OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTC|GPIO_PIN6)
+#  define GPIO_TIM3_CH2IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTC|GPIO_PIN7)
+#  define GPIO_TIM3_CH2OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTC|GPIO_PIN7)
+#  define GPIO_TIM3_CH3IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTC|GPIO_PIN8)
+#  define GPIO_TIM3_CH3OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTC|GPIO_PIN8)
+#  define GPIO_TIM3_CH4IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTC|GPIO_PIN9)
+#  define GPIO_TIM3_CH4OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTC|GPIO_PIN9)
+#elif defined(CONFIG_STM32_TIM3_PARTIAL_REMAP)
+#  define GPIO_TIM3_CH1IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN4)
+#  define GPIO_TIM3_CH1OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN4)
+#  define GPIO_TIM3_CH2IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN5)
+#  define GPIO_TIM3_CH2OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN5)
+#  define GPIO_TIM3_CH3IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN0)
+#  define GPIO_TIM3_CH3OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN0)
+#  define GPIO_TIM3_CH4IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN1)
+#  define GPIO_TIM3_CH4OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN1)
+#else
+#  define GPIO_TIM3_CH1IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN6)
+#  define GPIO_TIM3_CH1OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN6)
+#  define GPIO_TIM3_CH2IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN7)
+#  define GPIO_TIM3_CH2OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN7)
+#  define GPIO_TIM3_CH3IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN0)
+#  define GPIO_TIM3_CH3OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN0)
+#  define GPIO_TIM3_CH4IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN1)
+#  define GPIO_TIM3_CH4OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN1)
+#endif
+
+#if defined(CONFIG_STM32_TIM4_REMAP)
+#  define GPIO_TIM4_CH1IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTD|GPIO_PIN12)
+#  define GPIO_TIM4_CH1OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTD|GPIO_PIN12)
+#  define GPIO_TIM4_CH2IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTD|GPIO_PIN13)
+#  define GPIO_TIM4_CH2OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTD|GPIO_PIN13)
+#  define GPIO_TIM4_CH3IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTD|GPIO_PIN14)
+#  define GPIO_TIM4_CH3OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTD|GPIO_PIN14)
+#  define GPIO_TIM4_CH4IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTD|GPIO_PIN15)
+#  define GPIO_TIM4_CH4OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTD|GPIO_PIN15)
+#else
+#  define GPIO_TIM4_CH1IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN6)
+#  define GPIO_TIM4_CH1OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN6)
+#  define GPIO_TIM4_CH2IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN7)
+#  define GPIO_TIM4_CH2OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN7)
+#  define GPIO_TIM4_CH3IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN8)
+#  define GPIO_TIM4_CH3OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN8)
+#  define GPIO_TIM4_CH4IN   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN9)
+#  define GPIO_TIM4_CH4OUT  (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN9)
+#endif
+
+#define GPIO_TIM5_CH4IN     (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN3)
+#define GPIO_TIM5_CH4OUT    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN3)
+
+#if defined(CONFIG_STM32_USART1_REMAP)
+#  define GPIO_USART1_TX    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN9)
+#  define GPIO_USART1_RX    (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN10)
+#else
+#  define GPIO_USART1_TX    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN9)
+#  define GPIO_USART1_RX    (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN10)
+#endif
+
+#if defined(CONFIG_STM32_USART2_REMAP)
+#  define GPIO_USART2_CTS   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTD|GPIO_PIN3)
+#  define GPIO_USART2_RTS   (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTD|GPIO_PIN4)
+#  define GPIO_USART2_TX    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTD|GPIO_PIN5)
+#  define GPIO_USART2_RX    (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTD|GPIO_PIN6)
+#  define GPIO_USART2_CK    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTD|GPIO_PIN7)
+#else
+#  define GPIO_USART2_CTS   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN0)
+#  define GPIO_USART2_RTS   (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN1)
+#  define GPIO_USART2_TX    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN2)
+#  define GPIO_USART2_RX    (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN3)
+#  define GPIO_USART2_CK    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN4)
+#endif
+
+#if defined(CONFIG_STM32_USART3_FULL_REMAP)
+#  define GPIO_USART3_TX    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTD|GPIO_PIN8)
+#  define GPIO_USART3_RX    (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTD|GPIO_PIN9)
+#  define GPIO_USART3_CK    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTD|GPIO_PIN10)
+#  define GPIO_USART3_CTS   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTD|GPIO_PIN11)
+#  define GPIO_USART3_RTS   (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTD|GPIO_PIN12)
+#elif defined(CONFIG_STM32_USART3_PARTIAL_REMAP)
+#  define GPIO_USART3_TX    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTC|GPIO_PIN10)
+#  define GPIO_USART3_RX    (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTC|GPIO_PIN11)
+#  define GPIO_USART3_CK    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTC|GPIO_PIN12)
+#  define GPIO_USART3_CTS   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN13)
+#  define GPIO_USART3_RTS   (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN14)
+#else
+#  define GPIO_USART3_TX    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN10)
+#  define GPIO_USART3_RX    (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN11)
+#  define GPIO_USART3_CK    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN12)
+#  define GPIO_USART3_CTS   (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN13)
+#  define GPIO_USART3_RTS   (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN14)
+#endif
+
+#if defined(CONFIG_STM32_SPI1_REMAP)
+#  define GPIO_SPI1_NSS     (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN15)
+#  define GPIO_SPI1_SCK     (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN3)
+#  define GPIO_SPI1_MISO    (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN4)
+#  define GPIO_SPI1_MOSI    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN5)
+#else
+#  define GPIO_SPI1_NSS     (GPIO_INPUT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN4)
+#  define GPIO_SPI1_SCK     (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN5)
+#  define GPIO_SPI1_MISO    (GPIO_INPUT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN6)
+#  define GPIO_SPI1_MOSI    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN7)
+#endif
+
+#if defined(CONFIG_STM32_SPI3_REMAP)
+#  define GPIO_SPI3_NSS     (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN4)
+#  define GPIO_SPI3_SCK     (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTC|GPIO_PIN10)
+#  define GPIO_SPI3_MISO    (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTC|GPIO_PIN11)
+#  define GPIO_SPI3_MOSI    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTC|GPIO_PIN12)
+#else
+#  define GPIO_SPI3_NSS     (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN15)
+#  define GPIO_SPI3_SCK     (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN3)
+#  define GPIO_SPI3_MISO    (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN4)
+#  define GPIO_SPI3_MOSI    (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN5)
+#endif
+
+#if defined(CONFIG_STM32_I2C1_REMAP)
+#  define GPIO_I2C1_SCL     (GPIO_ALT|GPIO_CNF_AFOD|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN8)
+#  define GPIO_I2C1_SDA     (GPIO_ALT|GPIO_CNF_AFOD|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN9)
+#else
+#  define GPIO_I2C1_SCL     (GPIO_ALT|GPIO_CNF_AFOD|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN6)
+#  define GPIO_I2C1_SDA     (GPIO_ALT|GPIO_CNF_AFOD|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN7)
+#endif
+
+#if defined(CONFIG_STM32_CAN1_FULL_REMAP)
+#  define GPIO_CAN1_TX      (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTD|GPIO_PIN0)
+#  define GPIO_CAN1_RX      (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTD|GPIO_PIN1)
+#elif defined(CONFIG_STM32_CAN1_PARTIAL_REMAP)
+#  define GPIO_CAN1_TX      (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN8)
+#  define GPIO_CAN1_RX      (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN9)
+#else
+#  define GPIO_CAN1_TX      (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTA|GPIO_PIN11)
+#  define GPIO_CAN1_RX      (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTA|GPIO_PIN12)
+#endif
+
+#if defined(CONFIG_STM32_CAN2_REMAP)
+#  define GPIO_CAN2_TX      (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN5)
+#  define GPIO_CAN2_RX      (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN6)
+#else
+#  define GPIO_CAN2_TX      (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN12)
+#  define GPIO_CAN2_RX      (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTB|GPIO_PIN13)
+#endif
+
+/* SDIO */
+
+#define GPIO_SDIO_D0      (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTC|GPIO_PIN8)
+#define GPIO_SDIO_D1      (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTC|GPIO_PIN9)
+#define GPIO_SDIO_D2      (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTC|GPIO_PIN10)
+#define GPIO_SDIO_D3      (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTC|GPIO_PIN11)
+#define GPIO_SDIO_D4      (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN8)
+#define GPIO_SDIO_D5      (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTB|GPIO_PIN9)
+#define GPIO_SDIO_D6      (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTC|GPIO_PIN6)
+#define GPIO_SDIO_D7      (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTC|GPIO_PIN7)
+#define GPIO_SDIO_CK      (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTC|GPIO_PIN12)
+#define GPIO_SDIO_CMD     (GPIO_ALT|GPIO_CNF_AFPP|GPIO_MODE_50MHz|GPIO_PORTD|GPIO_PIN2)
+
+
+/************************************************************************************
+ * Public Types
+ ************************************************************************************/
+
+/************************************************************************************
+ * Inline Functions
+ ************************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+/************************************************************************************
+ * Public Data
+ ************************************************************************************/
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C" {
+#else
+#define EXTERN extern
+#endif
+
+/************************************************************************************
+ * Public Function Prototypes
+ ************************************************************************************/
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif /* __ARCH_ARM_SRC_STM32_STM32F103RE_PINMAP_H */
diff --git a/nuttx/configs/README.txt b/nuttx/configs/README.txt
index 734a662ad..5dddb0c2f 100644
--- a/nuttx/configs/README.txt
+++ b/nuttx/configs/README.txt
@@ -1004,7 +1004,7 @@ configs/skp16c26
     uses the GNU m32c toolchain.
 
 configs/stm3210e-evel
-    STMicrco STM3210E-EVAL development board based on the STMicro STM32F103ZET6
+    STMicro STM3210E-EVAL development board based on the STMicro STM32F103ZET6
     microcontroller (ARM Cortex-M3).  This port uses the GNU Cortex-M3
     toolchain.
 
@@ -1012,6 +1012,10 @@ configs/us7032evb1
     This is a port of the Hitachi SH-1 on the Hitachi SH-1/US7032EVB1 board.
     STATUS:  Work has just began on this port.
 
+configs/vsn
+    ISOTEL NetClamps VSN V1.2 ready2go sensor network platform based on the
+	STMicro STM32F103RET6.  Contributed by Uros Platise.
+
 configs/xtrs
     TRS80 Model 3.  This port uses a vintage computer based on the Z80.
     An emulator for this computer is available to run TRS80 programs on a 
diff --git a/nuttx/configs/demo9s12ne64/ostest/defconfig b/nuttx/configs/demo9s12ne64/ostest/defconfig
index 9c2afdf33..ff5e58e8d 100755
--- a/nuttx/configs/demo9s12ne64/ostest/defconfig
+++ b/nuttx/configs/demo9s12ne64/ostest/defconfig
@@ -179,12 +179,19 @@ CONFIG_SPI_POLLWAIT=y
 # CONFIG_HAVE_LIBM - toolchain supports libm.a
 #
 CONFIG_RRLOAD_BINARY=n
-CONFIG_INTELHEX_BINARY=y
-CONFIG_MOTOROLA_SREC=n
+CONFIG_INTELHEX_BINARY=n
+CONFIG_MOTOROLA_SREC=y
 CONFIG_RAW_BINARY=n
 CONFIG_HAVE_LIBM=n
 
 #
+# Setup for a two-pass build
+#
+CONFIG_BUILD_2PASS=n
+CONFIG_PASS1_BUILDIR=configs/demo9s12ne64/initrel
+CONFIG_PASS1_OBJECT=init.r
+
+#
 # General OS setup
 #
 # CONFIG_APP_DIR - Identifies the relative path to the directory
diff --git a/nuttx/configs/ne64badge/ostest/defconfig b/nuttx/configs/ne64badge/ostest/defconfig
index fa9dbc58e..3c39a6e3e 100755
--- a/nuttx/configs/ne64badge/ostest/defconfig
+++ b/nuttx/configs/ne64badge/ostest/defconfig
@@ -190,12 +190,19 @@ CONFIG_SPI_POLLWAIT=y
 # CONFIG_HAVE_LIBM - toolchain supports libm.a
 #
 CONFIG_RRLOAD_BINARY=n
-CONFIG_INTELHEX_BINARY=y
-CONFIG_MOTOROLA_SREC=n
+CONFIG_INTELHEX_BINARY=n
+CONFIG_MOTOROLA_SREC=y
 CONFIG_RAW_BINARY=n
 CONFIG_HAVE_LIBM=n
 
 #
+# Setup for a two-pass build
+#
+CONFIG_BUILD_2PASS=n
+CONFIG_PASS1_BUILDIR=configs/ne64badge/initrel
+CONFIG_PASS1_OBJECT=init.r
+
+#
 # General OS setup
 #
 # CONFIG_APP_DIR - Identifies the relative path to the directory
diff --git a/nuttx/configs/ne64badge/ostest/ld.script.banked b/nuttx/configs/ne64badge/ostest/ld.script.banked
index a0e07cb65..ef0673aac 100755
--- a/nuttx/configs/ne64badge/ostest/ld.script.banked
+++ b/nuttx/configs/ne64badge/ostest/ld.script.banked
@@ -107,7 +107,7 @@ SECTIONS
 		_etext = ABSOLUTE(.);
 	} > hitext
 
-	_eronly = ABSOLUTE(.);		/* See below                    */
+	_eronly = ABSOLUTE(.);
 
 	.data : {
 		_sdata = ABSOLUTE(.);
@@ -121,7 +121,7 @@ SECTIONS
 		*(vectors)
 	} > vectors
 
-	.bss : {			/* BSS				*/
+	.bss : {
 		_sbss = ABSOLUTE(.);
 		*(.bss .bss.*)
 		*(.gnu.linkonce.b.*)
diff --git a/nuttx/configs/ne64badge/ostest/ld.script.nonbanked b/nuttx/configs/ne64badge/ostest/ld.script.nonbanked
index 81fe56c42..1ec41e919 100755
--- a/nuttx/configs/ne64badge/ostest/ld.script.nonbanked
+++ b/nuttx/configs/ne64badge/ostest/ld.script.nonbanked
@@ -49,7 +49,9 @@ MEMORY
 
   /* Three fixed text flash pages (corresponding to page 3e, 3d, and 3f) at
    * 16Kb each (minus 256 bytes at the end of page 3f that is reserved for
-   * interrupt vectors).
+   * interrupt vectors).  Notice that this is linked as a single contiguous;
+   * Post-processing is planned to make the binary to the appropriate flash
+   * pages.
    */
 
   text    (rx)  : ORIGIN = 0x4000, LENGTH = 48K-256		/* Page 3e, 3d, and 3f */
@@ -78,7 +80,7 @@ SECTIONS
 		_etext = ABSOLUTE(.);
 	} > text
 
-	_eronly = ABSOLUTE(.);		/* See below                    */
+	_eronly = ABSOLUTE(.);
 
 	.data : {
 		_sdata = ABSOLUTE(.);
@@ -92,7 +94,7 @@ SECTIONS
 		*(vectors)
 	} > vectors
 
-	.bss : {			/* BSS				*/
+	.bss : {
 		_sbss = ABSOLUTE(.);
 		*(.bss .bss.*)
 		*(.gnu.linkonce.b.*)
diff --git a/nuttx/configs/vsn/README.txt b/nuttx/configs/vsn/README.txt
new file mode 100644
index 000000000..5ade94d18
--- /dev/null
+++ b/nuttx/configs/vsn/README.txt
@@ -0,0 +1,418 @@
+README
+^^^^^^
+
+This README discusses issues unique to NuttX configurations for the
+ISOTEL NetClamps VSN V1.2 ready2go sensor network platform.
+
+Contents
+^^^^^^^^
+
+  - Development Environment
+  - GNU Toolchain Options
+  - IDEs
+  - NuttX buildroot Toolchain
+  - DFU
+  - LEDs
+  - VSN-specific Configuration Options
+  - Configurations
+
+Development Environment
+^^^^^^^^^^^^^^^^^^^^^^^
+
+  Either Linux or Cygwin on Windows can be used for the development environment.
+  The source has been built only using the GNU toolchain (see below).  Other
+  toolchains will likely cause problems. Testing was performed using the Cygwin
+  environment because the Raisonance R-Link emulatator and some RIDE7 development tools
+  were used and those tools works only under Windows.
+
+GNU Toolchain Options
+^^^^^^^^^^^^^^^^^^^^^
+
+  The NuttX make system has been modified to support the following different
+  toolchain options.
+
+  1. The CodeSourcery GNU toolchain,
+  2. The devkitARM GNU toolchain,
+  3. Raisonance GNU toolchain, or
+  4. The NuttX buildroot Toolchain (see below).
+
+  All testing has been conducted using the NuttX buildroot toolchain.  However,
+  the make system is setup to default to use the devkitARM toolchain.  To use
+  the CodeSourcery, devkitARM or Raisonance GNU toolchain, you simply need to
+  add one of the following configuration options to your .config (or defconfig)
+  file:
+
+    CONFIG_STM32_CODESOURCERYW=y  : CodeSourcery under Windows
+    CONFIG_STM32_CODESOURCERYL=y  : CodeSourcery under Linux
+    CONFIG_STM32_DEVKITARM=y      : devkitARM under Windows
+    CONFIG_STM32_RAISONANCE=y     : Raisonance RIDE7 under Windows
+    CONFIG_STM32_BUILDROOT=y	  : NuttX buildroot under Linux or Cygwin (default)
+
+  If you are not using CONFIG_STM32_BUILDROOT, then you may also have to modify
+  the PATH in the setenv.h file if your make cannot find the tools.
+
+  NOTE: the CodeSourcery (for Windows), devkitARM, and Raisonance toolchains are
+  Windows native toolchains.  The CodeSourcey (for Linux) and NuttX buildroot
+  toolchains are Cygwin and/or Linux native toolchains. There are several limitations
+  to using a Windows based toolchain in a Cygwin environment.  The three biggest are:
+
+  1. The Windows toolchain cannot follow Cygwin paths.  Path conversions are
+     performed automatically in the Cygwin makefiles using the 'cygpath' utility
+     but you might easily find some new path problems.  If so, check out 'cygpath -w'
+
+  2. Windows toolchains cannot follow Cygwin symbolic links.  Many symbolic links
+     are used in Nuttx (e.g., include/arch).  The make system works around these
+     problems for the Windows tools by copying directories instead of linking them.
+     But this can also cause some confusion for you:  For example, you may edit
+     a file in a "linked" directory and find that your changes had not effect.
+     That is because you are building the copy of the file in the "fake" symbolic
+     directory.  If you use a Windows toolchain, you should get in the habit of
+     making like this:
+
+       make clean_context all
+
+     An alias in your .bashrc file might make that less painful.
+
+  3. Dependencies are not made when using Windows versions of the GCC.  This is
+     because the dependencies are generated using Windows pathes which do not
+     work with the Cygwin make.
+
+     Support has been added for making dependencies with the windows-native toolchains.
+     That support can be enabled by modifying your Make.defs file as follows:
+
+    -  MKDEP                = $(TOPDIR)/tools/mknulldeps.sh
+    +  MKDEP                = $(TOPDIR)/tools/mkdeps.sh --winpaths "$(TOPDIR)"
+
+     If you have problems with the dependency build (for example, if you are not
+     building on C:), then you may need to modify tools/mkdeps.sh
+
+  NOTE 1: The CodeSourcery toolchain (2009q1) does not work with default optimization
+  level of -Os (See Make.defs).  It will work with -O0, -O1, or -O2, but not with
+  -Os.
+
+  NOTE 2: The devkitARM toolchain includes a version of MSYS make.  Make sure that
+  the paths to Cygwin's /bin and /usr/bin directories appear BEFORE the devkitARM
+  path or will get the wrong version of make.
+
+IDEs
+^^^^
+
+  NuttX is built using command-line make.  It can be used with an IDE, but some
+  effort will be required to create the project (There is a simple RIDE project
+  in the RIDE subdirectory).
+  
+  Makefile Build
+  --------------
+  Under Eclipse, it is pretty easy to set up an "empty makefile project" and
+  simply use the NuttX makefile to build the system.  That is almost for free
+  under Linux.  Under Windows, you will need to set up the "Cygwin GCC" empty
+  makefile project in order to work with Windows (Google for "Eclipse Cygwin" -
+  there is a lot of help on the internet).
+
+  Native Build
+  ------------
+  Here are a few tips before you start that effort:
+
+  1) Select the toolchain that you will be using in your .config file
+  2) Start the NuttX build at least one time from the Cygwin command line
+     before trying to create your project.  This is necessary to create
+     certain auto-generated files and directories that will be needed.
+  3) Set up include pathes:  You will need include/, arch/arm/src/stm32,
+     arch/arm/src/common, arch/arm/src/cortexm3, and sched/.
+  4) All assembly files need to have the definition option -D __ASSEMBLY__
+     on the command line.
+
+  Startup files will probably cause you some headaches.  The NuttX startup file
+  is arch/arm/src/stm32/stm32_vectors.S.  With RIDE, I have to build NuttX
+  one time from the Cygwin command line in order to obtain the pre-built
+  startup object needed by RIDE.
+
+NuttX buildroot Toolchain
+^^^^^^^^^^^^^^^^^^^^^^^^^
+
+  A GNU GCC-based toolchain is assumed.  The files */setenv.sh should
+  be modified to point to the correct path to the Cortex-M3 GCC toolchain (if
+  different from the default in your PATH variable).
+
+  If you have no Cortex-M3 toolchain, one can be downloaded from the NuttX
+  SourceForge download site (https://sourceforge.net/project/showfiles.php?group_id=189573).
+  This GNU toolchain builds and executes in the Linux or Cygwin environment.
+
+  1. You must have already configured Nuttx in <some-dir>/nuttx.
+
+     cd tools
+     ./configure.sh vsn/<sub-dir>
+
+  2. Download the latest buildroot package into <some-dir>
+
+  3. unpack the buildroot tarball.  The resulting directory may
+     have versioning information on it like buildroot-x.y.z.  If so,
+     rename <some-dir>/buildroot-x.y.z to <some-dir>/buildroot.
+
+  4. cd <some-dir>/buildroot
+
+  5. cp configs/cortexm3-defconfig-4.3.3 .config
+
+  6. make oldconfig
+
+  7. make
+
+  8. Edit setenv.h, if necessary, so that the PATH variable includes
+     the path to the newly built binaries.
+
+  See the file configs/README.txt in the buildroot source tree.  That has more
+  detailed PLUS some special instructions that you will need to follow if you are
+  building a Cortex-M3 toolchain for Cygwin under Windows.
+
+DFU
+^^^
+
+  The linker files in these projects can be configured to indicate that you
+  will be loading code using STMicro built-in USB Device Firmware Upgrade (DFU)
+  loader or via some JTAG emulator.  You can specify the DFU bootloader by
+  adding the following line:
+
+    CONFIG_STM32_DFU=y
+
+  to your .config file. Most of the configurations in this directory are set
+  up to use the DFU loader.
+
+  If CONFIG_STM32_DFU is defined, the code will not be positioned at the beginning
+  of FLASH (0x08000000) but will be offset to 0x08003000.  This offset is needed
+  to make space for the DFU loader and 0x08003000 is where the DFU loader expects
+  to find new applications at boot time.  If you need to change that origin for some
+  other bootloader, you will need to edit the file(s) ld.script.dfu for each
+  configuration.
+
+  The DFU SE PC-based software is available from the STMicro website,
+  http://www.st.com.  General usage instructions:
+  
+  1. Convert the NuttX Intel Hex file (nuttx.ihx) into a special DFU
+     file (nuttx.dfu)... see below for details.
+  2. Connect the VSN board to your computer using a USB
+     cable.
+  3. Start the DFU loader on the VSN board.  You do this by
+     resetting the board while holding the "Key" button.  Windows should
+     recognize that the DFU loader has been installed.
+  3. Run the DFU SE program to load nutt.dfu into FLASH.
+
+  What if the DFU loader is not in FLASH?  The loader code is available
+  inside of the Demo dirctory of the USBLib ZIP file that can be downloaded
+  from the STMicro Website.  You can build it using RIDE (or other toolchains);
+  you will need a JTAG emulator to burn it into FLASH the first time.
+
+  In order to use STMicro's built-in DFU loader, you will have to get
+  the NuttX binary into a special format with a .dfu extension.  The
+  DFU SE PC_based software installation includes a file "DFU File Manager"
+  conversion program that a file in Intel Hex format to the special DFU
+  format.  When you successfully build NuttX, you will find a file called
+  nutt.ihx in the top-level directory.  That is the file that you should
+  provide to the DFU File Manager.  You will need to rename it to nuttx.hex
+  in order to find it with the DFU File Manager. You will end up with
+  a file called nuttx.dfu that you can use with the STMicro DFU SE program.
+
+LEDs
+^^^^
+
+The VSN board has four LEDs labeled LD1, LD2, LD3 and LD4 on the
+the board.  Usage of these LEDs is defined in include/board.h and src/up_leds.c.
+They are encoded as follows:
+
+	SYMBOL				Meaning					LED1*	LED2	LED3	LED4
+	-------------------	-----------------------	-------	-------	-------	------
+	LED_STARTED			NuttX has been started	ON		OFF		OFF		OFF
+	LED_HEAPALLOCATE	Heap has been allocated	OFF		ON		OFF		OFF
+	LED_IRQSENABLED		Interrupts enabled		ON		ON		OFF		OFF
+	LED_STACKCREATED	Idle stack created		OFF		OFF		ON		OFF
+	LED_INIRQ			In an interrupt**		ON		N/C		N/C		OFF
+	LED_SIGNAL			In a signal handler***  N/C		ON		N/C		OFF
+	LED_ASSERTION		An assertion failed		ON		ON		N/C		OFF
+	LED_PANIC			The system has crashed	N/C		N/C		N/C		ON
+
+  * If LED1, LED2, LED3 are statically on, then NuttX probably failed to boot
+    and these LEDs will give you some indication of where the failure was
+ ** The normal state is LED3 ON and LED1 faintly glowing.  This faint glow
+    is because of timer interupts that result in the LED being illuminated
+    on a small proportion of the time.
+*** LED2 may also flicker normally if signals are processed.
+
+VSN-specific Configuration Options
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+	CONFIG_ARCH - Identifies the arch/ subdirectory.  This should
+	   be set to:
+
+	   CONFIG_ARCH=arm
+
+	CONFIG_ARCH_family - For use in C code:
+
+	   CONFIG_ARCH_ARM=y
+
+	CONFIG_ARCH_architecture - For use in C code:
+
+	   CONFIG_ARCH_CORTEXM3=y
+
+	CONFIG_ARCH_CHIP - Identifies the arch/*/chip subdirectory
+
+	   CONFIG_ARCH_CHIP=stm32
+
+	CONFIG_ARCH_CHIP_name - For use in C code to identify the exact
+	   chip:
+
+	   CONFIG_ARCH_CHIP_STM32F103ZET6
+
+	CONFIG_ARCH_BOARD - Identifies the configs subdirectory and
+	   hence, the board that supports the particular chip or SoC.
+
+	   CONFIG_ARCH_BOARD=vsn (for the VSN development board)
+
+	CONFIG_ARCH_BOARD_name - For use in C code
+	
+	   CONFIG_ARCH_BOARD_VSN=y
+
+	CONFIG_ARCH_LOOPSPERMSEC - Must be calibrated for correct operation
+	   of delay loops
+
+	CONFIG_ENDIAN_BIG - define if big endian (default is little
+	   endian)
+
+	CONFIG_DRAM_SIZE - Describes the installed DRAM (SRAM in this case):
+
+	   CONFIG_DRAM_SIZE=0x00010000 (64Kb)
+
+	CONFIG_DRAM_START - The start address of installed DRAM
+
+	   CONFIG_DRAM_START=0x20000000
+
+	CONFIG_DRAM_END - Last address+1 of installed RAM
+
+	   CONFIG_DRAM_END=(CONFIG_DRAM_START+CONFIG_DRAM_SIZE)
+
+	CONFIG_ARCH_IRQPRIO - The STM32F103Z supports interrupt prioritization
+
+	   CONFIG_ARCH_IRQPRIO=y
+
+	CONFIG_ARCH_LEDS - Use LEDs to show state. Unique to boards that
+	   have LEDs
+
+	CONFIG_ARCH_INTERRUPTSTACK - This architecture supports an interrupt
+	   stack. If defined, this symbol is the size of the interrupt
+	    stack in bytes.  If not defined, the user task stacks will be
+	  used during interrupt handling.
+
+	CONFIG_ARCH_STACKDUMP - Do stack dumps after assertions
+
+	CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
+
+	CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
+	   cause a 100 second delay during boot-up.  This 100 second delay
+	   serves no purpose other than it allows you to calibratre
+	   CONFIG_ARCH_LOOPSPERMSEC.  You simply use a stop watch to measure
+	   the 100 second delay then adjust CONFIG_ARCH_LOOPSPERMSEC until
+	   the delay actually is 100 seconds.
+
+  Individual subsystems can be enabled:
+	AHB
+	---
+	CONFIG_STM32_DMA1
+	CONFIG_STM32_DMA2
+	CONFIG_STM32_CRC
+	CONFIG_STM32_FSMC
+	CONFIG_STM32_SDIO
+
+	APB1
+	----
+	CONFIG_STM32_TIM2
+	CONFIG_STM32_TIM3
+	CONFIG_STM32_TIM4
+	CONFIG_STM32_TIM5
+	CONFIG_STM32_TIM6
+	CONFIG_STM32_TIM7
+	CONFIG_STM32_WWDG
+	CONFIG_STM32_SPI2
+	CONFIG_STM32_SPI4
+	CONFIG_STM32_USART2
+	CONFIG_STM32_USART3
+	CONFIG_STM32_UART4
+	CONFIG_STM32_UART5
+	CONFIG_STM32_I2C1
+	CONFIG_STM32_I2C2
+	CONFIG_STM32_USB
+	CONFIG_STM32_CAN
+	CONFIG_STM32_BKP
+	CONFIG_STM32_PWR
+	CONFIG_STM32_DAC
+	CONFIG_STM32_USB
+
+	APB2
+	----
+	CONFIG_STM32_ADC1
+	CONFIG_STM32_ADC2
+	CONFIG_STM32_TIM1
+	CONFIG_STM32_SPI1
+	CONFIG_STM32_TIM8
+	CONFIG_STM32_USART1
+	CONFIG_STM32_ADC3
+
+  Alternate pin mappings (should not be used with the VSN board):
+
+	CONFIG_STM32_TIM1_FULL_REMAP
+	CONFIG_STM32_TIM1_PARTIAL_REMAP
+	CONFIG_STM32_TIM2_FULL_REMAP
+	CONFIG_STM32_TIM2_PARTIAL_REMAP_1
+	CONFIG_STM32_TIM2_PARTIAL_REMAP_2
+	CONFIG_STM32_TIM3_FULL_REMAP
+	CONFIG_STM32_TIM3_PARTIAL_REMAP
+	CONFIG_STM32_TIM4_REMAP
+	CONFIG_STM32_USART1_REMAP
+	CONFIG_STM32_USART2_REMAP
+	CONFIG_STM32_USART3_FULL_REMAP
+	CONFIG_STM32_USART3_PARTIAL_REMAP
+	CONFIG_STM32_SPI1_REMAP
+	CONFIG_STM32_SPI3_REMAP
+	CONFIG_STM32_I2C1_REMAP
+	CONFIG_STM32_CAN1_FULL_REMAP
+	CONFIG_STM32_CAN1_PARTIAL_REMAP
+	CONFIG_STM32_CAN2_REMAP
+
+  STM32F103Z specific device driver settings
+
+	CONFIG_U[S]ARTn_SERIAL_CONSOLE - selects the USARTn (n=1,2,3) or UART
+           m (m=4,5) for the console and ttys0 (default is the USART1).
+	CONFIG_U[S]ARTn_RXBUFSIZE - Characters are buffered as received.
+	   This specific the size of the receive buffer
+	CONFIG_U[S]ARTn_TXBUFSIZE - Characters are buffered before
+	   being sent.  This specific the size of the transmit buffer
+	CONFIG_U[S]ARTn_BAUD - The configure BAUD of the UART.  Must be
+	CONFIG_U[S]ARTn_BITS - The number of bits.  Must be either 7 or 8.
+	CONFIG_U[S]ARTn_PARTIY - 0=no parity, 1=odd parity, 2=even parity
+	CONFIG_U[S]ARTn_2STOP - Two stop bits
+
+	CONFIG_STM32_SPI_INTERRUPTS - Select to enable interrupt driven SPI
+	  support. Non-interrupt-driven, poll-waiting is recommended if the
+	  interrupt rate would be to high in the interrupt driven case.
+	CONFIG_STM32_SPI_DMA - Use DMA to improve SPI transfer performance.
+	  Cannot be used with CONFIG_STM32_SPI_INTERRUPT.
+
+	CONFIG_SDIO_DMA - Support DMA data transfers.  Requires CONFIG_STM32_SDIO
+	  and CONFIG_STM32_DMA2.
+	CONFIG_SDIO_PRI - Select SDIO interrupt prority.  Default: 128
+	CONFIG_SDIO_DMAPRIO - Select SDIO DMA interrupt priority. 
+	  Default:  Medium
+
+Configurations
+^^^^^^^^^^^^^^
+
+Each VSN configuration is maintained in a sudirectory and
+can be selected as follow:
+
+	cd tools
+	./configure.sh vsn/<subdir>
+	cd -
+	. ./setenv.sh
+
+Where <subdir> is one of the following:
+
+  nsh:
+    Configures the NuttShell (nsh) located at examples/nsh.  The
+    Configuration enables both the serial and telnetd NSH interfaces.
diff --git a/nuttx/configs/vsn/include/board.h b/nuttx/configs/vsn/include/board.h
new file mode 100644
index 000000000..558dccd91
--- /dev/null
+++ b/nuttx/configs/vsn/include/board.h
@@ -0,0 +1,206 @@
+/************************************************************************************
+ * configs/vsn-1.2/include/board.h
+ * include/arch/board/board.h
+ *
+ *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2011 Uros Platise. All rights reserved
+ * 
+ *   Authors: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *            Uros Platise <uros.platise@isotel.eu>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+#ifndef __ARCH_BOARD_BOARD_H
+#define __ARCH_BOARD_BOARD_H
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+#ifndef __ASSEMBLY__
+# include <stdint.h>
+#endif
+#include "stm32_rcc.h"
+#include "stm32_sdio.h"
+#include "stm32_internal.h"
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/* Clocking *************************************************************************/
+
+/* On-board external frequency source is 9MHz (HSE) provided by the CC1101, so it is
+ * not available on power-up. Instead we are about to run on HSI*9 = 36 MHz, see 
+ * up_sysclock.c for details. */
+
+#define STM32_BOARD_XTAL        9000000UL
+#define STM32_BOARD_HCLK       36000000UL
+
+/* PLL source is either HSI or HSE
+ * When HSI: PLL multiplier is 9, out frequency 36 MHz
+ * When HSE: PLL multiplier is 8: out frequency is 9 MHz x 8 = 72MHz 
+ */
+#define STM32_CFGR_PLLSRC_HSI  0
+#define STM32_CFGR_PLLMUL_HSI  RCC_CFGR_PLLMUL_CLKx9
+
+#define STM32_CFGR_PLLXTPRE_HSE 0
+#define STM32_CFGR_PLLSRC_HSE  RCC_CFGR_PLLSRC
+#define STM32_CFGR_PLLMUL_HSE  RCC_CFGR_PLLMUL_CLKx8
+
+/* Use the PLL and set the SYSCLK source to be the PLL */
+
+#define STM32_SYSCLK_SW        RCC_CFGR_SW_PLL
+#define STM32_SYSCLK_SWS       RCC_CFGR_SWS_PLL
+
+/* AHB clock (HCLK, 36 MHz) is SYSCLK on HSI or SYSCLK/2 on HSE */
+
+#define STM32_RCC_CFGR_HPRE_HSI	RCC_CFGR_HPRE_SYSCLK
+#define STM32_RCC_CFGR_HPRE_HSE	RCC_CFGR_HPRE_SYSCLKd2
+#define STM32_HCLK_FREQUENCY   	STM32_BOARD_HCLK
+
+/* APB2 clock (PCLK2) is HCLK (36MHz) */
+
+#define STM32_RCC_CFGR_PPRE2   RCC_CFGR_PPRE2_HCLK
+#define STM32_PCLK2_FREQUENCY  STM32_BOARD_HCLK
+
+/* APB1 clock (PCLK1) is HCLK (36MHz) */
+
+#define STM32_RCC_CFGR_PPRE1   RCC_CFGR_PPRE1_HCLK
+#define STM32_PCLK1_FREQUENCY  STM32_BOARD_HCLK
+
+/* USB divider -- Divide PLL clock by 1.5 */
+
+#define STM32_CFGR_USBPRE      0
+
+/* SDIO dividers.  Note that slower clocking is required when DMA is disabled 
+ * in order to avoid RX overrun/TX underrun errors due to delayed responses
+ * to service FIFOs in interrupt driven mode.  These values have not been
+ * tuned!!!
+ *
+ * \todo Not checked yet! Uros.
+ * HCLK=36MHz, SDIOCLK=? MHz, SDIO_CK=HCLK/(178+2)=400 KHz 
+ */
+  
+#define SDIO_INIT_CLKDIV       (178 << SDIO_CLKCR_CLKDIV_SHIFT)
+
+/* DMA ON:  HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(2+2)=18 MHz
+ * DMA OFF: HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(3+2)=14.4 MHz
+ */
+
+#ifdef CONFIG_SDIO_DMA
+#  define SDIO_MMCXFR_CLKDIV   (2 << SDIO_CLKCR_CLKDIV_SHIFT) 
+#else
+#  define SDIO_MMCXFR_CLKDIV   (3 << SDIO_CLKCR_CLKDIV_SHIFT) 
+#endif
+
+/* DMA ON:  HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(1+2)=24 MHz
+ * DMA OFF: HCLK=72 MHz, SDIOCLK=72MHz, SDIO_CK=HCLK/(3+2)=14.4 MHz
+ */
+
+#ifdef CONFIG_SDIO_DMA
+#  define SDIO_SDXFR_CLKDIV    (1 << SDIO_CLKCR_CLKDIV_SHIFT)
+#else
+#  define SDIO_SDXFR_CLKDIV    (3 << SDIO_CLKCR_CLKDIV_SHIFT)
+#endif
+
+/* LED definitions ******************************************************************/
+
+/* The VSN has one LED that we will encode as: */
+
+#define LED_STARTED       0  /* ... */
+#define LED_HEAPALLOCATE  1  /* ... */
+#define LED_IRQSENABLED   2  /* ... */
+#define LED_STACKCREATED  3  /* ... */
+#define LED_INIRQ         4  /* ... */
+#define LED_SIGNAL        5  /* ... */
+#define LED_ASSERTION     6  /* ... */
+#define LED_PANIC         7  /* ... */
+#define LED_IDLE		  8	 /* shows idle state */
+
+/* eXternal connector pins */
+
+
+/************************************************************************************
+ * Public Data
+ ************************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C" {
+#else
+#define EXTERN extern
+#endif
+
+/************************************************************************************
+ * Public Function Prototypes
+ ************************************************************************************/
+ 
+ EXTERN void stm32_board_clockconfig(void);
+ 
+/************************************************************************************
+ * Name: stm32_boardinitialize
+ *
+ * Description:
+ *   All STM32 architectures must provide the following entry point.  This entry point
+ *   is called early in the intitialization -- after all memory has been configured
+ *   and mapped but before any devices have been initialized.
+ *
+ ************************************************************************************/
+
+EXTERN void stm32_boardinitialize(void);
+
+/************************************************************************************
+ * Button support.
+ *
+ * Description:
+ *   up_buttoninit() must be called to initialize button resources.  After that,
+ *   up_buttons() may be called to collect the state of all buttons.  up_buttons()
+ *   returns an 8-bit bit set with each bit associated with a button.  See the
+ *   BUTTON_* and JOYSTICK_* definitions above for the meaning of each bit.
+ *
+ ************************************************************************************/
+
+#ifdef CONFIG_ARCH_BUTTONS
+EXTERN void up_buttoninit(void);
+EXTERN uint8_t up_buttons(void);
+#endif
+
+#undef EXTERN
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif  /* __ARCH_BOARD_BOARD_H */
diff --git a/nuttx/configs/vsn/nsh/Make.defs b/nuttx/configs/vsn/nsh/Make.defs
new file mode 100644
index 000000000..d343a07c8
--- /dev/null
+++ b/nuttx/configs/vsn/nsh/Make.defs
@@ -0,0 +1,174 @@
+############################################################################
+# configs/stm3210e-eval/nsh/Make.defs
+#
+#   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+include ${TOPDIR}/.config
+
+# Setup for the selected toolchain
+
+ifeq ($(CONFIG_STM32_DFU),y)
+  LDSCRIPT = ld.script.dfu
+else
+  LDSCRIPT = ld.script
+endif
+
+ifeq ($(CONFIG_STM32_CODESOURCERYW),y)
+  # CodeSourcery under Windows
+  CROSSDEV = arm-none-eabi-
+  WINTOOL = y
+  ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
+endif
+ifeq ($(CONFIG_STM32_CODESOURCERYL),y)
+  # CodeSourcery under Linux
+  CROSSDEV = arm-none-eabi-
+  ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
+  MAXOPTIMIZATION = -O2
+endif
+ifeq ($(CONFIG_STM32_DEVKITARM),y)
+  # devkitARM under Windows
+  CROSSDEV = arm-eabi-
+  WINTOOL = y
+  ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
+endif
+ifeq ($(CONFIG_STM32_RAISONANCE),y)
+  # Raisonance RIDE7 under Windows
+  CROSSDEV = arm-none-eabi-
+  WINTOOL = y
+  ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
+endif
+ifeq ($(CONFIG_STM32_BUILDROOT),y)
+  # NuttX buildroot under Linux or Cygwin
+  CROSSDEV = arm-elf-
+  ARCHCPUFLAGS = -mtune=cortex-m3 -march=armv7-m -mfloat-abi=soft
+  MAXOPTIMIZATION = -Os
+endif
+
+ifeq ($(WINTOOL),y)
+  # Windows-native toolchains
+  DIRLINK = $(TOPDIR)/tools/winlink.sh
+  DIRUNLINK = $(TOPDIR)/tools/unlink.sh
+  MKDEP = $(TOPDIR)/tools/mknulldeps.sh
+  ARCHINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}"
+  ARCHXXINCLUDES = -I. -isystem "${shell cygpath -w $(TOPDIR)/include}" -isystem "${shell cygpath -w $(TOPDIR)/include/cxx}"
+  ARCHSCRIPT = -T "${shell cygpath -w $(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/nsh/$(LDSCRIPT)}"
+  MAXOPTIMIZATION = -O2
+else
+  # Linux/Cygwin-native toolchain 
+  MKDEP = $(TOPDIR)/tools/mkdeps.sh
+  ARCHINCLUDES = -I. -isystem $(TOPDIR)/include
+  ARCHXXINCLUDES = -I. -isystem $(TOPDIR)/include -isystem $(TOPDIR)/include/cxx
+  ARCHSCRIPT = -T$(TOPDIR)/configs/$(CONFIG_ARCH_BOARD)/nsh/$(LDSCRIPT)
+endif
+
+CC = $(CROSSDEV)gcc
+CXX = $(CROSSDEV)g++
+CPP = $(CROSSDEV)gcc -E
+LD = $(CROSSDEV)ld
+AR = $(CROSSDEV)ar rcs
+NM = $(CROSSDEV)nm
+OBJCOPY = $(CROSSDEV)objcopy
+OBJDUMP = $(CROSSDEV)objdump
+
+ARCHCCVERSION = ${shell $(CC) -v 2>&1 | sed -n '/^gcc version/p' | sed -e 's/^gcc version \([0-9\.]\)/\1/g' -e 's/[-\ ].*//g' -e '1q'}
+ARCHCCMAJOR = ${shell echo $(ARCHCCVERSION) | cut -d'.' -f1}
+
+ifeq ("${CONFIG_DEBUG_SYMBOLS}","y")
+  ARCHOPTIMIZATION = -g
+else
+  ARCHOPTIMIZATION = $(MAXOPTIMIZATION) -fno-strict-aliasing -fno-strength-reduce -fomit-frame-pointer
+endif
+
+ARCHCFLAGS = -fno-builtin
+ARCHCXXFLAGS = -fno-builtin -fno-exceptions
+ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow
+ARCHWARNINGSXX = -Wall -Wshadow
+ARCHDEFINES =
+ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
+
+CFLAGS = $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) -pipe
+CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
+CXXFLAGS = $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) -pipe
+CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
+CPPFLAGS = $(ARCHINCLUDES) $(ARCHDEFINES)
+AFLAGS = $(CFLAGS) -D__ASSEMBLY__
+
+NXFLATLDFLAGS1 = -r -d -warn-common
+NXFLATLDFLAGS2 = $(NXFLATLDFLAGS1) -T$(TOPDIR)/binfmt/libnxflat/gnu-nxflat.ld -no-check-sections
+LDNXFLATFLAGS = -e main -s 2048
+
+OBJEXT = .o
+LIBEXT = .a
+EXEEXT =
+
+ifneq ($(CROSSDEV),arm-elf-)
+  LDFLAGS += -nostartfiles -nodefaultlibs
+endif
+ifeq ($(CONFIG_DEBUG_SYMBOLS),y)
+  LDFLAGS += -g
+endif
+
+define PREPROCESS
+	@echo "CPP: $1->$2"
+	@$(CPP) $(CPPFLAGS) $1 -o $2
+endef
+
+define COMPILE
+	@echo "CC: $1"
+	@$(CC) -c $(CFLAGS) $1 -o $2
+endef
+
+define COMPILEXX
+	@echo "CXX: $1"
+	@$(CXX) -c $(CXXFLAGS) $1 -o $2
+endef
+
+define ASSEMBLE
+	@echo "AS: $1"
+	@$(CC) -c $(AFLAGS) $1 -o $2
+endef
+
+define ARCHIVE
+	echo "AR: $2"; \
+	$(AR) $1 $2 || { echo "$(AR) $1 $2 FAILED!" ; exit 1 ; }
+endef
+
+define CLEAN
+	@rm -f *.o *.a
+endef
+
+HOSTCC = gcc
+HOSTINCLUDES = -I.
+HOSTCFLAGS = -Wall -Wstrict-prototypes -Wshadow -g -pipe
+HOSTLDFLAGS =
+
diff --git a/nuttx/configs/vsn/nsh/defconfig b/nuttx/configs/vsn/nsh/defconfig
new file mode 100755
index 000000000..ed95f617d
--- /dev/null
+++ b/nuttx/configs/vsn/nsh/defconfig
@@ -0,0 +1,814 @@
+############################################################################
+# configs/vsn/nsh/defconfig
+#
+#   Copyright (C) 2009-2010 Gregory Nutt. All rights reserved.
+#   Copyright (c) 2011 Uros Platise. All rights reserved.
+#   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+#           Uros Platise <uros.platise@isotel.eu>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+#
+# architecture selection
+#
+# CONFIG_ARCH - identifies the arch subdirectory and, hence, the
+#   processor architecture.
+# CONFIG_ARCH_family - for use in C code.  This identifies the
+#   particular chip family that the architecture is implemented
+#   in.
+# CONFIG_ARCH_architecture - for use in C code.  This identifies the
+#   specific architecture within the chip familyl.
+# CONFIG_ARCH_CHIP - Identifies the arch/*/chip subdirectory
+# CONFIG_ARCH_CHIP_name - For use in C code
+# CONFIG_ARCH_BOARD - identifies the configs subdirectory and, hence,
+#   the board that supports the particular chip or SoC.
+# CONFIG_ARCH_BOARD_name - for use in C code
+# CONFIG_ENDIAN_BIG - define if big endian (default is little endian)
+# CONFIG_BOARD_LOOPSPERMSEC - for delay loops
+# CONFIG_DRAM_SIZE - Describes the installed DRAM.
+# CONFIG_DRAM_START - The start address of DRAM (physical)
+# CONFIG_DRAM_END - Last address+1 of installed RAM
+# CONFIG_ARCH_IRQPRIO - The ST32F103Z supports interrupt prioritization
+# CONFIG_ARCH_INTERRUPTSTACK - This architecture supports an interrupt
+#   stack. If defined, this symbol is the size of the interrupt
+#   stack in bytes.  If not defined, the user task stacks will be
+#   used during interrupt handling.
+# CONFIG_ARCH_STACKDUMP - Do stack dumps after assertions
+# CONFIG_ARCH_BOOTLOADER - Set if you are using a bootloader.
+# CONFIG_ARCH_LEDS -  Use LEDs to show state. Unique to board architecture.
+# CONFIG_ARCH_BUTTONS -  Enable support for buttons. Unique to board architecture.
+# CONFIG_ARCH_CALIBRATION - Enables some build in instrumentation that
+#   cause a 100 second delay during boot-up.  This 100 second delay
+#   serves no purpose other than it allows you to calibrate
+#   CONFIG_BOARD_LOOPSPERMSEC.  You simply use a stop watch to measure
+#   the 100 second delay then adjust CONFIG_BOARD_LOOPSPERMSEC until
+#   the delay actually is 100 seconds.
+# CONFIG_ARCH_DMA - Support DMA initialization
+#
+CONFIG_ARCH=arm
+CONFIG_ARCH_ARM=y
+CONFIG_ARCH_CORTEXM3=y
+CONFIG_ARCH_CHIP=stm32
+CONFIG_ARCH_CHIP_STM32F103RET6=y
+CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG=y
+CONFIG_ARCH_BOARD=vsn
+CONFIG_BOARD_LOOPSPERMSEC=5483
+CONFIG_DRAM_SIZE=0x00010000
+CONFIG_DRAM_START=0x20000000
+CONFIG_DRAM_END=(CONFIG_DRAM_START+CONFIG_DRAM_SIZE)
+CONFIG_ARCH_IRQPRIO=y
+CONFIG_ARCH_INTERRUPTSTACK=n
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_ARCH_BOOTLOADER=n
+CONFIG_ARCH_LEDS=y
+CONFIG_ARCH_BUTTONS=y
+CONFIG_ARCH_CALIBRATION=n
+CONFIG_ARCH_DMA=y
+
+#
+# Identify toolchain and linker options
+#
+CONFIG_STM32_CODESOURCERYW=n
+CONFIG_STM32_CODESOURCERYL=n
+CONFIG_STM32_DEVKITARM=n
+CONFIG_STM32_RAISONANCE=n
+CONFIG_STM32_BUILDROOT=y
+CONFIG_STM32_DFU=n
+
+#
+# Individual subsystems can be enabled:
+# AHB: 
+CONFIG_STM32_DMA1=n
+CONFIG_STM32_DMA2=y
+CONFIG_STM32_CRC=n
+CONFIG_STM32_FSMC=n
+CONFIG_STM32_SDIO=y
+# APB1:
+CONFIG_STM32_TIM2=n
+CONFIG_STM32_TIM3=n
+CONFIG_STM32_TIM4=n
+CONFIG_STM32_TIM5=n
+CONFIG_STM32_TIM6=n
+CONFIG_STM32_TIM7=n
+CONFIG_STM32_WWDG=n
+CONFIG_STM32_SPI2=n
+CONFIG_STM32_SPI4=n
+CONFIG_STM32_USART2=n
+CONFIG_STM32_USART3=n
+CONFIG_STM32_UART4=n
+CONFIG_STM32_UART5=n
+CONFIG_STM32_I2C1=n
+CONFIG_STM32_I2C2=n
+CONFIG_STM32_USB=n
+CONFIG_STM32_CAN=n
+CONFIG_STM32_BKP=n
+CONFIG_STM32_PWR=n
+CONFIG_STM32_DAC=n
+# APB2:
+CONFIG_STM32_ADC1=n
+CONFIG_STM32_ADC2=n
+CONFIG_STM32_TIM1=n
+CONFIG_STM32_SPI1=n
+CONFIG_STM32_TIM8=n
+CONFIG_STM32_USART1=y
+CONFIG_STM32_ADC3=n
+
+#
+# STM32F103Z specific serial device driver settings
+#
+# CONFIG_USARTn_SERIAL_CONSOLE - selects the USARTn for the
+#   console and ttys0 (default is the USART1).
+# CONFIG_USARTn_RXBUFSIZE - Characters are buffered as received.
+#   This specific the size of the receive buffer
+# CONFIG_USARTn_TXBUFSIZE - Characters are buffered before
+#   being sent.  This specific the size of the transmit buffer
+# CONFIG_USARTn_BAUD - The configure BAUD of the UART.  Must be
+# CONFIG_USARTn_BITS - The number of bits.  Must be either 7 or 8.
+# CONFIG_USARTn_PARTIY - 0=no parity, 1=odd parity, 2=even parity
+# CONFIG_USARTn_2STOP - Two stop bits
+#
+CONFIG_USART1_SERIAL_CONSOLE=y
+CONFIG_USART2_SERIAL_CONSOLE=n
+CONFIG_USART3_SERIAL_CONSOLE=n
+CONFIG_USART4_SERIAL_CONSOLE=n
+CONFIG_USART5_SERIAL_CONSOLE=n
+
+CONFIG_USART1_TXBUFSIZE=256
+CONFIG_USART2_TXBUFSIZE=256
+CONFIG_USART3_TXBUFSIZE=256
+CONFIG_USART4_TXBUFSIZE=256
+CONFIG_USART5_TXBUFSIZE=256
+
+CONFIG_USART1_RXBUFSIZE=256
+CONFIG_USART2_RXBUFSIZE=256
+CONFIG_USART3_RXBUFSIZE=256
+CONFIG_USART4_RXBUFSIZE=256
+CONFIG_USART5_RXBUFSIZE=256
+
+CONFIG_USART1_BAUD=115200
+CONFIG_USART2_BAUD=115200
+CONFIG_USART3_BAUD=115200
+CONFIG_USART4_BAUD=115200
+CONFIG_USART5_BAUD=115200
+
+CONFIG_USART1_BITS=8
+CONFIG_USART2_BITS=8
+CONFIG_USART3_BITS=8
+CONFIG_USART4_BITS=8
+CONFIG_USART5_BITS=8
+
+CONFIG_USART1_PARITY=0
+CONFIG_USART2_PARITY=0
+CONFIG_USART3_PARITY=0
+CONFIG_USART4_PARITY=0
+CONFIG_USART5_PARITY=0
+
+CONFIG_USART1_2STOP=0
+CONFIG_USART2_2STOP=0
+CONFIG_USART3_2STOP=0
+CONFIG_USART4_2STOP=0
+CONFIG_USART5_2STOP=0
+
+#
+# STM32F103Z specific SSI device driver settings
+#
+# CONFIG_SSIn_DISABLE - select to disable all support for
+#   the SSI
+# CONFIG_SSI_POLLWAIT - Select to disable interrupt driven SSI support
+#   Poll-waiting is recommended if the interrupt rate would be to
+#   high in the interrupt driven case.
+# CONFIG_SSI_TXLIMIT - Write this many words to the Tx FIFO before
+#   emptying the Rx FIFO.  If the SPI frequency is high and this
+#   value is large, then larger values of this setting may cause
+#   Rx FIFO overrun errors.  Default: half of the Tx FIFO size (4).
+#
+CONFIG_SSI0_DISABLE=y
+CONFIG_SSI1_DISABLE=y
+CONFIG_SSI_POLLWAIT=y
+#CONFIG_SSI_TXLIMIT=4
+
+#
+# General build options
+#
+# CONFIG_RRLOAD_BINARY - make the rrload binary format used with
+#   BSPs from www.ridgerun.com using the tools/mkimage.sh script
+# CONFIG_INTELHEX_BINARY - make the Intel HEX binary format
+#   used with many different loaders using the GNU objcopy program
+#   Should not be selected if you are not using the GNU toolchain.
+# CONFIG_MOTOROLA_SREC - make the Motorola S-Record binary format
+#   used with many different loaders using the GNU objcopy program
+#   Should not be selected if you are not using the GNU toolchain.
+# CONFIG_RAW_BINARY - make a raw binary format file used with many
+#   different loaders using the GNU objcopy program.  This option
+#   should not be selected if you are not using the GNU toolchain.
+# CONFIG_HAVE_LIBM - toolchain supports libm.a
+#
+CONFIG_RRLOAD_BINARY=n
+CONFIG_INTELHEX_BINARY=n
+CONFIG_MOTOROLA_SREC=y
+CONFIG_RAW_BINARY=n
+CONFIG_HAVE_LIBM=n
+
+#
+# General OS setup
+#
+# CONFIG_APP_DIR - Identifies the relative path to the directory
+#   that builds the application to link with NuttX.
+# CONFIG_DEBUG - enables built-in debug options
+# CONFIG_DEBUG_VERBOSE - enables verbose debug output
+# CONFIG_DEBUG_SYMBOLS - build without optimization and with
+#   debug symbols (needed for use with a debugger).
+# CONFIG_MM_REGIONS - If the architecture includes multiple
+#   regions of memory to allocate from, this specifies the
+#   number of memory regions that the memory manager must
+#   handle and enables the API mm_addregion(start, end);
+# CONFIG_ARCH_LOWPUTC - architecture supports low-level, boot
+#   time console output
+# CONFIG_TICKS_PER_MSEC - The default system timer is 100Hz
+#   or TICKS_PER_MSEC=10.  This setting may be defined to
+#   inform NuttX that the processor hardware is providing
+#   system timer interrupts at some interrupt interval other
+#   than 10 msec.
+# CONFIG_RR_INTERVAL - The round robin timeslice will be set
+#   this number of milliseconds;  Round robin scheduling can
+#   be disabled by setting this value to zero.
+# CONFIG_SCHED_INSTRUMENTATION - enables instrumentation in 
+#   scheduler to monitor system performance
+# CONFIG_TASK_NAME_SIZE - Spcifies that maximum size of a
+#   task name to save in the TCB.  Useful if scheduler
+#   instrumentation is selected.  Set to zero to disable.
+# CONFIG_START_YEAR, CONFIG_START_MONTH, CONFIG_START_DAY -
+#   Used to initialize the internal time logic.
+# CONFIG_GREGORIAN_TIME - Enables Gregorian time conversions.
+#   You would only need this if you are concerned about accurate
+#   time conversions in the past or in the distant future.
+# CONFIG_JULIAN_TIME - Enables Julian time conversions. You
+#   would only need this if you are concerned about accurate
+#   time conversion in the distand past.  You must also define
+#   CONFIG_GREGORIAN_TIME in order to use Julian time.
+# CONFIG_DEV_CONSOLE - Set if architecture-specific logic
+#   provides /dev/console.  Enables stdout, stderr, stdin.
+# CONFIG_DEV_LOWCONSOLE - Use the simple, low-level serial console
+#   driver (minimul support)
+# CONFIG_MUTEX_TYPES: Set to enable support for recursive and
+#   errorcheck mutexes. Enables pthread_mutexattr_settype().
+# CONFIG_PRIORITY_INHERITANCE : Set to enable support for priority
+#   inheritance on mutexes and semaphores. 
+# CONFIG_SEM_PREALLOCHOLDERS: This setting is only used if priority
+#   inheritance is enabled.  It defines the maximum number of
+#   different threads (minus one) that can take counts on a
+#   semaphore with priority inheritance support.  This may be 
+#   set to zero if priority inheritance is disabled OR if you
+#   are only using semaphores as mutexes (only one holder) OR
+#   if no more than two threads participate using a counting
+#   semaphore.
+# CONFIG_SEM_NNESTPRIO.  If priority inheritance is enabled,
+#   then this setting is the maximum number of higher priority
+#   threads (minus 1) than can be waiting for another thread
+#   to release a count on a semaphore.  This value may be set
+#   to zero if no more than one thread is expected to wait for
+#   a semaphore.
+# CONFIG_FDCLONE_DISABLE. Disable cloning of all file descriptors
+#   by task_create() when a new task is started.  If set, all
+#   files/drivers will appear to be closed in the new task.
+# CONFIG_FDCLONE_STDIO. Disable cloning of all but the first
+#   three file descriptors (stdin, stdout, stderr) by task_create()
+#   when a new task is started. If set, all files/drivers will
+#   appear to be closed in the new task except for stdin, stdout,
+#   and stderr.
+# CONFIG_SDCLONE_DISABLE. Disable cloning of all socket
+#   desciptors by task_create() when a new task is started. If
+#   set, all sockets will appear to be closed in the new task.
+# CONFIG_NXFLAT. Enable support for the NXFLAT binary format.
+#  This format will support execution of NuttX binaries located
+#  in a ROMFS filesystem (see examples/nxflat).
+# CONFIG_SCHED_WORKQUEUE.  Create a dedicated "worker" thread to
+#  handle delayed processing from interrupt handlers.  This feature
+#  is required for some drivers but, if there are not complaints,
+#  can be safely disabled.  The worker thread also performs
+#  garbage collection -- completing any delayed memory deallocations
+#  from interrupt handlers.  If the worker thread is disabled,
+#  then that clean will be performed by the IDLE thread instead
+#  (which runs at the lowest of priority and may not be appropriate
+#  if memory reclamation is of high priority).  If CONFIG_SCHED_WORKQUEUE
+#  is enabled, then the following options can also be used:
+# CONFIG_SCHED_WORKPRIORITY - The execution priority of the worker
+#  thread.  Default: 50
+# CONFIG_SCHED_WORKPERIOD - How often the worker thread checks for
+#  work in units of microseconds.  Default: 50*1000 (50 MS).
+# CONFIG_SCHED_WORKSTACKSIZE - The stack size allocated for the worker
+#  thread.  Default: CONFIG_IDLETHREAD_STACKSIZE.
+# CONFIG_SIG_SIGWORK - The signal number that will be used to wake-up
+#  the worker thread.  Default: 4
+#
+CONFIG_APP_DIR=examples/nsh
+CONFIG_DEBUG=n
+CONFIG_DEBUG_VERBOSE=n
+CONFIG_DEBUG_SYMBOLS=n
+CONFIG_MM_REGIONS=1
+CONFIG_ARCH_LOWPUTC=y
+CONFIG_RR_INTERVAL=200
+CONFIG_SCHED_INSTRUMENTATION=n
+CONFIG_TASK_NAME_SIZE=0
+CONFIG_START_YEAR=2009
+CONFIG_START_MONTH=9
+CONFIG_START_DAY=21
+CONFIG_GREGORIAN_TIME=n
+CONFIG_JULIAN_TIME=n
+CONFIG_DEV_CONSOLE=y
+CONFIG_DEV_LOWCONSOLE=n
+CONFIG_MUTEX_TYPES=n
+CONFIG_PRIORITY_INHERITANCE=n
+CONFIG_SEM_PREALLOCHOLDERS=0
+CONFIG_SEM_NNESTPRIO=0
+CONFIG_FDCLONE_DISABLE=n
+CONFIG_FDCLONE_STDIO=n
+CONFIG_SDCLONE_DISABLE=y
+CONFIG_NXFLAT=n
+CONFIG_SCHED_WORKQUEUE=y
+CONFIG_SCHED_WORKPRIORITY=50
+CONFIG_SCHED_WORKPERIOD=(50*1000)
+CONFIG_SCHED_WORKSTACKSIZE=1024
+CONFIG_SIG_SIGWORK=4
+
+#
+# The following can be used to disable categories of
+# APIs supported by the OS.  If the compiler supports
+# weak functions, then it should not be necessary to
+# disable functions unless you want to restrict usage
+# of those APIs.
+#
+# There are certain dependency relationships in these
+# features.
+#
+# o mq_notify logic depends on signals to awaken tasks
+#   waiting for queues to become full or empty.
+# o pthread_condtimedwait() depends on signals to wake
+#   up waiting tasks.
+#
+CONFIG_DISABLE_CLOCK=n
+CONFIG_DISABLE_POSIX_TIMERS=n
+CONFIG_DISABLE_PTHREAD=n
+CONFIG_DISABLE_SIGNALS=n
+CONFIG_DISABLE_MQUEUE=n
+CONFIG_DISABLE_MOUNTPOINT=n
+CONFIG_DISABLE_ENVIRON=n
+CONFIG_DISABLE_POLL=y
+
+#
+# Misc libc settings
+#
+# CONFIG_NOPRINTF_FIELDWIDTH - sprintf-related logic is a
+#   little smaller if we do not support fieldwidthes
+#
+CONFIG_NOPRINTF_FIELDWIDTH=n
+
+#
+# Allow for architecture optimized implementations
+#
+# The architecture can provide optimized versions of the
+# following to improve system performance
+#
+CONFIG_ARCH_MEMCPY=n
+CONFIG_ARCH_MEMCMP=n
+CONFIG_ARCH_MEMMOVE=n
+CONFIG_ARCH_MEMSET=n
+CONFIG_ARCH_STRCMP=n
+CONFIG_ARCH_STRCPY=n
+CONFIG_ARCH_STRNCPY=n
+CONFIG_ARCH_STRLEN=n
+CONFIG_ARCH_STRNLEN=n
+CONFIG_ARCH_BZERO=n
+CONFIG_ARCH_KMALLOC=n
+CONFIG_ARCH_KZMALLOC=n
+CONFIG_ARCH_KFREE=n
+
+#
+# Sizes of configurable things (0 disables)
+#
+# CONFIG_MAX_TASKS - The maximum number of simultaneously
+#   active tasks.  This value must be a power of two.
+# CONFIG_MAX_TASK_ARGS - This controls the maximum number of
+#   of parameters that a task may receive (i.e., maxmum value
+#   of 'argc')
+# CONFIG_NPTHREAD_KEYS - The number of items of thread-
+#   specific data that can be retained
+# CONFIG_NFILE_DESCRIPTORS - The maximum number of file
+#   descriptors (one for each open)
+# CONFIG_NFILE_STREAMS - The maximum number of streams that
+#   can be fopen'ed
+# CONFIG_NAME_MAX - The maximum size of a file name.
+# CONFIG_STDIO_BUFFER_SIZE - Size of the buffer to allocate
+#   on fopen. (Only if CONFIG_NFILE_STREAMS > 0)
+# CONFIG_NUNGET_CHARS - Number of characters that can be
+#   buffered by ungetc() (Only if CONFIG_NFILE_STREAMS > 0)
+# CONFIG_PREALLOC_MQ_MSGS - The number of pre-allocated message
+#   structures.  The system manages a pool of preallocated
+#   message structures to minimize dynamic allocations
+# CONFIG_MQ_MAXMSGSIZE - Message structures are allocated with
+#   a fixed payload size given by this settin (does not include
+#   other message structure overhead.
+# CONFIG_MAX_WDOGPARMS - Maximum number of parameters that
+#   can be passed to a watchdog handler
+# CONFIG_PREALLOC_WDOGS - The number of pre-allocated watchdog
+#   structures.  The system manages a pool of preallocated
+#   watchdog structures to minimize dynamic allocations
+# CONFIG_PREALLOC_TIMERS - The number of pre-allocated POSIX
+#   timer structures.  The system manages a pool of preallocated
+#   timer structures to minimize dynamic allocations.  Set to
+#   zero for all dynamic allocations.
+#
+CONFIG_MAX_TASKS=16
+CONFIG_MAX_TASK_ARGS=4
+CONFIG_NPTHREAD_KEYS=4
+CONFIG_NFILE_DESCRIPTORS=8
+CONFIG_NFILE_STREAMS=8
+CONFIG_NAME_MAX=32
+CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_NUNGET_CHARS=2
+CONFIG_PREALLOC_MQ_MSGS=4
+CONFIG_MQ_MAXMSGSIZE=32
+CONFIG_MAX_WDOGPARMS=2
+CONFIG_PREALLOC_WDOGS=4
+CONFIG_PREALLOC_TIMERS=4
+
+#
+# Filesystem configuration
+#
+# CONFIG_FS_FAT - Enable FAT filesystem support
+# CONFIG_FAT_SECTORSIZE - Max supported sector size
+# CONFIG_FS_ROMFS - Enable ROMFS filesystem support
+CONFIG_FS_FAT=y
+CONFIG_FS_ROMFS=n
+
+#
+# SPI-based MMC/SD driver
+#
+# CONFIG_MMCSD_NSLOTS
+#   Number of MMC/SD slots supported by the driver
+# CONFIG_MMCSD_READONLY
+#   Provide read-only access (default is read/write)
+# CONFIG_MMCSD_SPICLOCK - Maximum SPI clock to drive MMC/SD card.
+#   Default is 20MHz.
+#
+CONFIG_MMCSD_NSLOTS=1
+CONFIG_MMCSD_READONLY=n
+CONFIG_MMCSD_SPICLOCK=12500000
+
+#
+# Block driver buffering
+#
+# CONFIG_FS_READAHEAD
+#   Enable read-ahead buffering
+# CONFIG_FS_WRITEBUFFER
+#   Enable write buffering
+#
+CONFIG_FS_READAHEAD=n
+CONFIG_FS_WRITEBUFFER=n
+
+#
+# SDIO-based MMC/SD driver
+#
+# CONFIG_SDIO_DMA
+#   SDIO driver supports DMA
+# CONFIG_MMCSD_MMCSUPPORT
+#   Enable support for MMC cards
+# CONFIG_MMCSD_HAVECARDDETECT
+#   SDIO driver card detection is 100% accurate
+#
+CONFIG_SDIO_DMA=y
+CONFIG_MMCSD_MMCSUPPORT=n
+CONFIG_MMCSD_HAVECARDDETECT=n
+
+#
+# TCP/IP and UDP support via uIP
+# CONFIG_NET - Enable or disable all network features
+# CONFIG_NET_IPv6 - Build in support for IPv6
+# CONFIG_NSOCKET_DESCRIPTORS - Maximum number of socket descriptors per task/thread.
+# CONFIG_NET_SOCKOPTS - Enable or disable support for socket options
+# CONFIG_NET_BUFSIZE - uIP buffer size
+# CONFIG_NET_TCP - TCP support on or off
+# CONFIG_NET_TCP_CONNS - Maximum number of TCP connections (all tasks)
+# CONFIG_NET_TCP_READAHEAD_BUFSIZE - Size of TCP read-ahead buffers
+# CONFIG_NET_NTCP_READAHEAD_BUFFERS - Number of TCP read-ahead buffers (may be zero)
+# CONFIG_NET_TCPBACKLOG - Incoming connections pend in a backlog until
+#   accept() is called. The size of the backlog is selected when listen() is called.
+# CONFIG_NET_MAX_LISTENPORTS - Maximum number of listening TCP ports (all tasks)
+# CONFIG_NET_UDP - UDP support on or off
+# CONFIG_NET_UDP_CHECKSUMS - UDP checksums on or off
+# CONFIG_NET_UDP_CONNS - The maximum amount of concurrent UDP connections
+# CONFIG_NET_ICMP - ICMP ping response support on or off
+# CONFIG_NET_ICMP_PING - ICMP ping request support on or off
+# CONFIG_NET_PINGADDRCONF - Use "ping" packet for setting IP address
+# CONFIG_NET_STATISTICS - uIP statistics on or off
+# CONFIG_NET_RECEIVE_WINDOW - The size of the advertised receiver's window
+# CONFIG_NET_ARPTAB_SIZE - The size of the ARP table
+# CONFIG_NET_BROADCAST - Broadcast support
+# CONFIG_NET_LLH_LEN - The link level header length
+# CONFIG_NET_FWCACHE_SIZE - number of packets to remember when looking for duplicates
+#
+CONFIG_NET=n
+CONFIG_NET_IPv6=n
+CONFIG_NSOCKET_DESCRIPTORS=0
+CONFIG_NET_SOCKOPTS=y
+CONFIG_NET_BUFSIZE=420
+CONFIG_NET_TCP=n
+CONFIG_NET_TCP_CONNS=40
+CONFIG_NET_MAX_LISTENPORTS=40
+CONFIG_NET_UDP=n
+CONFIG_NET_UDP_CHECKSUMS=y
+#CONFIG_NET_UDP_CONNS=10
+CONFIG_NET_ICMP=n
+CONFIG_NET_ICMP_PING=n
+#CONFIG_NET_PINGADDRCONF=0
+CONFIG_NET_STATISTICS=y
+#CONFIG_NET_RECEIVE_WINDOW=
+#CONFIG_NET_ARPTAB_SIZE=8
+CONFIG_NET_BROADCAST=n
+#CONFIG_NET_LLH_LEN=14
+#CONFIG_NET_FWCACHE_SIZE=2
+
+#
+# UIP Network Utilities
+# CONFIG_NET_DHCP_LIGHT - Reduces size of DHCP
+# CONFIG_NET_RESOLV_ENTRIES - Number of resolver entries
+#
+CONFIG_NET_DHCP_LIGHT=n
+CONFIG_NET_RESOLV_ENTRIES=4
+
+#
+# USB Device Configuration
+#
+# CONFIG_USBDEV
+#   Enables USB device support
+# CONFIG_USBDEV_ISOCHRONOUS
+#   Build in extra support for isochronous endpoints
+# CONFIG_USBDEV_DUALSPEED
+#   Hardware handles high and full speed operation (USB 2.0)
+# CONFIG_USBDEV_SELFPOWERED
+#   Will cause USB features to indicate that the device is
+#   self-powered
+# CONFIG_USBDEV_MAXPOWER
+#   Maximum power consumption in mA
+# CONFIG_USBDEV_TRACE
+#   Enables USB tracing for debug
+# CONFIG_USBDEV_TRACE_NRECORDS
+#   Number of trace entries to remember
+#
+CONFIG_USBDEV=n
+CONFIG_USBDEV_ISOCHRONOUS=n
+CONFIG_USBDEV_DUALSPEED=n
+CONFIG_USBDEV_SELFPOWERED=y
+CONFIG_USBDEV_REMOTEWAKEUP=n
+CONFIG_USBDEV_MAXPOWER=100
+CONFIG_USBDEV_TRACE=n
+CONFIG_USBDEV_TRACE_NRECORDS=128
+
+#
+# USB Serial Device Configuration
+#
+# CONFIG_USBSER
+#   Enable compilation of the USB serial driver
+# CONFIG_USBSER_EPINTIN
+#   The logical 7-bit address of a hardware endpoint that supports
+#   interrupt IN operation
+# CONFIG_USBSER_EPBULKOUT
+#   The logical 7-bit address of a hardware endpoint that supports
+#   bulk OUT operation
+# CONFIG_USBSER_EPBULKIN
+#   The logical 7-bit address of a hardware endpoint that supports
+#   bulk IN operation
+# # CONFIG_USBSER_NWRREQS and CONFIG_USBSER_NRDREQS
+#   The number of write/read requests that can be in flight
+# CONFIG_USBSER_VENDORID and CONFIG_USBSER_VENDORSTR
+#   The vendor ID code/string
+# CONFIG_USBSER_PRODUCTID and CONFIG_USBSER_PRODUCTSTR
+#   The product ID code/string
+# CONFIG_USBSER_RXBUFSIZE and CONFIG_USBSER_TXBUFSIZE
+#   Size of the serial receive/transmit buffers
+#
+CONFIG_USBSER=n
+CONFIG_USBSER_EPINTIN=1
+CONFIG_USBSER_EPBULKOUT=2
+CONFIG_USBSER_EPBULKIN=3
+CONFIG_USBSER_NWRREQS=4
+CONFIG_USBSER_NRDREQS=4
+CONFIG_USBSER_VENDORID=0x067b
+CONFIG_USBSER_PRODUCTID=0x2303
+CONFIG_USBSER_VENDORSTR="Nuttx"
+CONFIG_USBSER_PRODUCTSTR="USBdev Serial"
+CONFIG_USBSER_RXBUFSIZE=512
+CONFIG_USBSER_TXBUFSIZE=512
+
+#
+# USB Storage Device Configuration
+#
+# CONFIG_USBSTRG
+#   Enable compilation of the USB storage driver
+# CONFIG_USBSTRG_EP0MAXPACKET
+#   Max packet size for endpoint 0
+# CONFIG_USBSTRG_EPBULKOUT and CONFIG_USBSTRG_EPBULKIN
+#   The logical 7-bit address of a hardware endpoints that support
+#   bulk OUT and IN operations
+# CONFIG_USBSTRG_NWRREQS and CONFIG_USBSTRG_NRDREQS
+#   The number of write/read requests that can be in flight
+# CONFIG_USBSTRG_BULKINREQLEN and CONFIG_USBSTRG_BULKOUTREQLEN
+#   The size of the buffer in each write/read request.  This
+#   value needs to be at least as large as the endpoint
+#   maxpacket and ideally as large as a block device sector.
+# CONFIG_USBSTRG_VENDORID and CONFIG_USBSTRG_VENDORSTR
+#   The vendor ID code/string
+# CONFIG_USBSTRG_PRODUCTID and CONFIG_USBSTRG_PRODUCTSTR
+#   The product ID code/string
+# CONFIG_USBSTRG_REMOVABLE
+#   Select if the media is removable
+#
+CONFIG_USBSTRG=n
+CONFIG_USBSTRG_EP0MAXPACKET=64
+CONFIG_USBSTRG_EPBULKOUT=2
+CONFIG_USBSTRG_EPBULKIN=5
+CONFIG_USBSTRG_NRDREQS=2
+CONFIG_USBSTRG_NWRREQS=2
+CONFIG_USBSTRG_BULKINREQLEN=256
+CONFIG_USBSTRG_BULKOUTREQLEN=256
+CONFIG_USBSTRG_VENDORID=0x584e
+CONFIG_USBSTRG_VENDORSTR="NuttX"
+CONFIG_USBSTRG_PRODUCTID=0x5342
+CONFIG_USBSTRG_PRODUCTSTR="USBdev Storage"
+CONFIG_USBSTRG_VERSIONNO=0x0399
+CONFIG_USBSTRG_REMOVABLE=y
+
+#
+# Settings for examples/uip
+#
+CONFIG_EXAMPLE_UIP_IPADDR=(10<<24|0<<16|0<<8|2)
+CONFIG_EXAMPLE_UIP_DRIPADDR=(10<<24|0<<16|0<<8|1)
+CONFIG_EXAMPLE_UIP_NETMASK=(255<<24|255<<16|255<<8|0)
+CONFIG_EXAMPLE_UIP_DHCPC=n
+
+#
+# Settings for examples/nettest
+CONFIG_EXAMPLE_NETTEST_SERVER=n
+CONFIG_EXAMPLE_NETTEST_PERFORMANCE=n
+CONFIG_EXAMPLE_NETTEST_NOMAC=n
+CONFIG_EXAMPLE_NETTEST_IPADDR=(10<<24|0<<16|0<<8|2)
+CONFIG_EXAMPLE_NETTEST_DRIPADDR=(10<<24|0<<16|0<<8|1)
+CONFIG_EXAMPLE_NETTEST_NETMASK=(255<<24|255<<16|255<<8|0)
+CONFIG_EXAMPLE_NETTEST_CLIENTIP=(10<<24|0<<16|0<<8|1)
+
+#
+# Settings for examples/ostest
+#
+CONFIG_EXAMPLES_OSTEST_LOOPS=1
+CONFIG_EXAMPLES_OSTEST_STACKSIZE=2048
+CONFIG_EXAMPLES_OSTEST_NBARRIER_THREADS=3
+
+#
+# Settings for examples/nsh
+#
+# CONFIG_EXAMPLES_NSH_FILEIOSIZE - Size of a static I/O buffer
+# CONFIG_EXAMPLES_NSH_STRERROR - Use strerror(errno)
+# CONFIG_EXAMPLES_NSH_LINELEN - Maximum length of one command line
+# CONFIG_EXAMPLES_NSH_STACKSIZE - Stack size to use for new threads.
+# CONFIG_EXAMPLES_NSH_NESTDEPTH - Max number of nested if-then[-else]-fi
+# CONFIG_EXAMPLES_NSH_DISABLESCRIPT - Disable scripting support
+# CONFIG_EXAMPLES_NSH_DISABLEBG - Disable background commands
+# CONFIG_EXAMPLES_NSH_ROMFSETC - Use startup script in /etc
+# CONFIG_EXAMPLES_NSH_CONSOLE - Use serial console front end
+# CONFIG_EXAMPLES_NSH_TELNET - Use telnetd console front end
+# CONFIG_EXAMPLES_NSH_ARCHINIT - Platform provides architecture
+#   specific initialization (nsh_archinitialize()).
+#
+# If CONFIG_EXAMPLES_NSH_TELNET is selected:
+# CONFIG_EXAMPLES_NSH_IOBUFFER_SIZE -- Telnetd I/O buffer size
+# CONFIG_EXAMPLES_NSH_DHCPC - Obtain address using DHCP
+# CONFIG_EXAMPLES_NSH_IPADDR - Provides static IP address
+# CONFIG_EXAMPLES_NSH_DRIPADDR - Provides static router IP address
+# CONFIG_EXAMPLES_NSH_NETMASK - Provides static network mask
+# CONFIG_EXAMPLES_NSH_NOMAC - Use a bogus MAC address
+#
+# If CONFIG_EXAMPLES_NSH_ROMFSETC is selected:
+# CONFIG_EXAMPLES_NSH_ROMFSMOUNTPT - ROMFS mountpoint
+# CONFIG_EXAMPLES_NSH_INITSCRIPT - Relative path to init script
+# CONFIG_EXAMPLES_NSH_ROMFSDEVNO - ROMFS RAM device minor
+# CONFIG_EXAMPLES_NSH_ROMFSSECTSIZE - ROMF sector size
+# CONFIG_EXAMPLES_NSH_FATDEVNO - FAT FS RAM device minor
+# CONFIG_EXAMPLES_NSH_FATSECTSIZE - FAT FS sector size
+# CONFIG_EXAMPLES_NSH_FATNSECTORS - FAT FS number of sectors
+# CONFIG_EXAMPLES_NSH_FATMOUNTPT - FAT FS mountpoint
+#
+CONFIG_EXAMPLES_NSH_FILEIOSIZE=512
+CONFIG_EXAMPLES_NSH_STRERROR=n
+CONFIG_EXAMPLES_NSH_LINELEN=64
+CONFIG_EXAMPLES_NSH_STACKSIZE=2048
+CONFIG_EXAMPLES_NSH_NESTDEPTH=3
+CONFIG_EXAMPLES_NSH_DISABLESCRIPT=n
+CONFIG_EXAMPLES_NSH_DISABLEBG=n
+CONFIG_EXAMPLES_NSH_ROMFSETC=n
+CONFIG_EXAMPLES_NSH_CONSOLE=y
+CONFIG_EXAMPLES_NSH_TELNET=n
+CONFIG_EXAMPLES_NSH_ARCHINIT=y
+CONFIG_EXAMPLES_NSH_IOBUFFER_SIZE=512
+CONFIG_EXAMPLES_NSH_DHCPC=n
+CONFIG_EXAMPLES_NSH_NOMAC=n
+CONFIG_EXAMPLES_NSH_IPADDR=(10<<24|0<<16|0<<8|2)
+CONFIG_EXAMPLES_NSH_DRIPADDR=(10<<24|0<<16|0<<8|1)
+CONFIG_EXAMPLES_NSH_NETMASK=(255<<24|255<<16|255<<8|0)
+CONFIG_EXAMPLES_NSH_ROMFSMOUNTPT="/etc"
+CONFIG_EXAMPLES_NSH_INITSCRIPT="init.d/rcS"
+CONFIG_EXAMPLES_NSH_ROMFSDEVNO=0
+CONFIG_EXAMPLES_NSH_ROMFSSECTSIZE=64
+CONFIG_EXAMPLES_NSH_FATDEVNO=1
+CONFIG_EXAMPLES_NSH_FATSECTSIZE=512
+CONFIG_EXAMPLES_NSH_FATNSECTORS=1024
+CONFIG_EXAMPLES_NSH_FATMOUNTPT=/tmp
+
+#
+# Architecture-specific NSH options
+#
+CONFIG_EXAMPLES_NSH_MMCSDSPIPORTNO=0
+CONFIG_EXAMPLES_NSH_MMCSDSLOTNO=0
+CONFIG_EXAMPLES_NSH_MMCSDMINOR=0
+
+#
+# Settings for examples/usbserial
+#
+# CONFIG_EXAMPLES_USBSERIAL_INONLY
+#    Only verify IN (device-to-host) data transfers.  Default: both
+# CONFIG_EXAMPLES_USBSERIAL_OUTONLY
+#    Only verify OUT (host-to-device) data transfers.  Default: both
+# CONFIG_EXAMPLES_USBSERIAL_ONLYSMALL
+#    Send only small, single packet messages.  Default: Send large and small.
+# CONFIG_EXAMPLES_USBSERIAL_ONLYBIG
+#    Send only large, multi-packet messages.  Default: Send large and small.
+#
+CONFIG_EXAMPLES_USBSERIAL_INONLY=n
+CONFIG_EXAMPLES_USBSERIAL_OUTONLY=n
+CONFIG_EXAMPLES_USBSERIAL_ONLYSMALL=n
+CONFIG_EXAMPLES_USBSERIAL_ONLYBIG=n
+
+CONFIG_EXAMPLES_USBSERIAL_TRACEINIT=n
+CONFIG_EXAMPLES_USBSERIAL_TRACECLASS=n
+CONFIG_EXAMPLES_USBSERIAL_TRACETRANSFERS=n
+CONFIG_EXAMPLES_USBSERIAL_TRACECONTROLLER=n
+CONFIG_EXAMPLES_USBSERIAL_TRACEINTERRUPTS=n
+
+#
+# Stack and heap information
+#
+# CONFIG_BOOT_RUNFROMFLASH - Some configurations support XIP
+#   operation from FLASH but must copy initialized .data sections to RAM.
+#   (should also be =n for the STM3210E-EVAL which always runs from flash)
+# CONFIG_BOOT_COPYTORAM -  Some configurations boot in FLASH
+#   but copy themselves entirely into RAM for better performance.
+# CONFIG_CUSTOM_STACK - The up_ implementation will handle
+#   all stack operations outside of the nuttx model.
+# CONFIG_STACK_POINTER - The initial stack pointer (arm7tdmi only)
+# CONFIG_IDLETHREAD_STACKSIZE - The size of the initial stack.
+#  This is the thread that (1) performs the inital boot of the system up
+#  to the point where user_start() is spawned, and (2) there after is the
+#  IDLE thread that executes only when there is no other thread ready to
+#  run.
+# CONFIG_USERMAIN_STACKSIZE - The size of the stack to allocate
+#  for the main user thread that begins at the user_start() entry point.
+# CONFIG_PTHREAD_STACK_MIN - Minimum pthread stack size
+# CONFIG_PTHREAD_STACK_DEFAULT - Default pthread stack size
+# CONFIG_HEAP_BASE - The beginning of the heap
+# CONFIG_HEAP_SIZE - The size of the heap
+#
+CONFIG_BOOT_RUNFROMFLASH=n
+CONFIG_BOOT_COPYTORAM=n
+CONFIG_CUSTOM_STACK=n
+CONFIG_STACK_POINTER=
+CONFIG_IDLETHREAD_STACKSIZE=1024
+CONFIG_USERMAIN_STACKSIZE=2048
+CONFIG_PTHREAD_STACK_MIN=256
+CONFIG_PTHREAD_STACK_DEFAULT=2048
+CONFIG_HEAP_BASE=
+CONFIG_HEAP_SIZE=
diff --git a/nuttx/configs/vsn/nsh/ld.script b/nuttx/configs/vsn/nsh/ld.script
new file mode 100755
index 000000000..f7b4ba78b
--- /dev/null
+++ b/nuttx/configs/vsn/nsh/ld.script
@@ -0,0 +1,111 @@
+/****************************************************************************
+ * configs/stm3210e-eval/nsh/ld.script
+ *
+ *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/* The STM32F103ZET6 has 512Kb of FLASH beginning at address 0x0800:0000 and
+ * 64Kb of SRAM beginning at address 0x2000:0000.  When booting from FLASH,
+ * FLASH memory is aliased to address 0x0000:0000 where the code expects to
+ * begin execution by jumping to the entry point in the 0x0800:0000 address
+ * range.
+ */
+
+MEMORY
+{
+    flash (rx) : ORIGIN = 0x08000000, LENGTH = 512K
+    sram (rwx) : ORIGIN = 0x20000000, LENGTH = 64K
+}
+
+OUTPUT_ARCH(arm)
+ENTRY(_stext)
+SECTIONS
+{
+	.text : {
+		_stext = ABSOLUTE(.);
+		*(.vectors)
+		*(.text .text.*)        
+		*(.fixup)
+		*(.gnu.warning)
+		*(.rodata .rodata.*)        
+		*(.gnu.linkonce.t.*)
+		*(.glue_7)
+		*(.glue_7t)
+		*(.got)
+		*(.gcc_except_table)
+		*(.gnu.linkonce.r.*)
+		_etext = ABSOLUTE(.);
+	} > flash
+
+	_eronly = ABSOLUTE(.);		/* See below                    */
+
+	/* The STM32F103Z has 64Kb of SRAM beginning at the following address */
+
+	.data : {
+		_sdata = ABSOLUTE(.);
+		*(.data .data.*)
+		*(.gnu.linkonce.d.*)
+		CONSTRUCTORS
+		_edata = ABSOLUTE(.);
+	} > sram AT > flash
+
+	.ARM.extab : {
+		*(.ARM.extab*)
+	} >sram
+
+	.ARM.exidx : {
+		__exidx_start = ABSOLUTE(.);
+		*(.ARM.exidx*)
+		__exidx_end = ABSOLUTE(.);
+	} >sram
+
+	.bss : {			/* BSS				*/
+		_sbss = ABSOLUTE(.);
+		*(.bss .bss.*)
+		*(.gnu.linkonce.b.*)
+		*(COMMON)
+		_ebss = ABSOLUTE(.);
+	} > sram
+					/* Stabs debugging sections.	*/
+	.stab 0 : { *(.stab) }
+	.stabstr 0 : { *(.stabstr) }
+	.stab.excl 0 : { *(.stab.excl) }
+	.stab.exclstr 0 : { *(.stab.exclstr) }
+	.stab.index 0 : { *(.stab.index) }
+	.stab.indexstr 0 : { *(.stab.indexstr) }
+	.comment 0 : { *(.comment) }
+	.debug_abbrev 0 : { *(.debug_abbrev) }
+	.debug_info 0 : { *(.debug_info) }
+	.debug_line 0 : { *(.debug_line) }
+	.debug_pubnames 0 : { *(.debug_pubnames) }
+	.debug_aranges 0 : { *(.debug_aranges) }
+}
diff --git a/nuttx/configs/vsn/nsh/ld.script.dfu b/nuttx/configs/vsn/nsh/ld.script.dfu
new file mode 100755
index 000000000..2837fd04c
--- /dev/null
+++ b/nuttx/configs/vsn/nsh/ld.script.dfu
@@ -0,0 +1,110 @@
+/****************************************************************************
+ * configs/stm3210e-eval/nsh/ld.script.dfu
+ *
+ *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/* The STM32F103ZET6 has 512Kb of FLASH beginning at address 0x0800:0000 and
+ * 64Kb of SRAM beginning at address 0x2000:0000.  Here we assume that the
+ * STM3210E-EVAL's DFU bootloader is being used.  In that case, the corrct
+ * load .text load address is 0x08003000 (leaving 464Kb).
+ */
+
+MEMORY
+{
+    flash (rx) : ORIGIN = 0x08003000, LENGTH = 464K
+    sram (rwx) : ORIGIN = 0x20000000, LENGTH = 64K
+}
+
+OUTPUT_ARCH(arm)
+ENTRY(_stext)
+SECTIONS
+{
+	.text : {
+		_stext = ABSOLUTE(.);
+		*(.vectors)
+		*(.text .text.*)        
+		*(.fixup)
+		*(.gnu.warning)
+		*(.rodata .rodata.*)        
+		*(.gnu.linkonce.t.*)
+		*(.glue_7)
+		*(.glue_7t)
+		*(.got)
+		*(.gcc_except_table)
+		*(.gnu.linkonce.r.*)
+		_etext = ABSOLUTE(.);
+	} > flash
+
+	_eronly = ABSOLUTE(.);		/* See below                    */
+
+	/* The STM32F103Z has 64Kb of SRAM beginning at the following address */
+
+	.data : {
+		_sdata = ABSOLUTE(.);
+		*(.data .data.*)
+		*(.gnu.linkonce.d.*)
+		CONSTRUCTORS
+		_edata = ABSOLUTE(.);
+	} > sram AT > flash
+
+	.ARM.extab : {
+		*(.ARM.extab*)
+	} >sram
+
+	.ARM.exidx : {
+		__exidx_start = ABSOLUTE(.);
+		*(.ARM.exidx*)
+		__exidx_end = ABSOLUTE(.);
+	} >sram
+
+	.bss : {			/* BSS				*/
+		_sbss = ABSOLUTE(.);
+		*(.bss .bss.*)
+		*(.gnu.linkonce.b.*)
+		*(COMMON)
+		_ebss = ABSOLUTE(.);
+	} > sram
+					/* Stabs debugging sections.	*/
+	.stab 0 : { *(.stab) }
+	.stabstr 0 : { *(.stabstr) }
+	.stab.excl 0 : { *(.stab.excl) }
+	.stab.exclstr 0 : { *(.stab.exclstr) }
+	.stab.index 0 : { *(.stab.index) }
+	.stab.indexstr 0 : { *(.stab.indexstr) }
+	.comment 0 : { *(.comment) }
+	.debug_abbrev 0 : { *(.debug_abbrev) }
+	.debug_info 0 : { *(.debug_info) }
+	.debug_line 0 : { *(.debug_line) }
+	.debug_pubnames 0 : { *(.debug_pubnames) }
+	.debug_aranges 0 : { *(.debug_aranges) }
+}
diff --git a/nuttx/configs/vsn/nsh/setenv.sh b/nuttx/configs/vsn/nsh/setenv.sh
new file mode 100755
index 000000000..d83685192
--- /dev/null
+++ b/nuttx/configs/vsn/nsh/setenv.sh
@@ -0,0 +1,47 @@
+#!/bin/bash
+# configs/stm3210e-eval/dfu/setenv.sh
+#
+#   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+
+if [ "$(basename $0)" = "setenv.sh" ] ; then
+  echo "You must source this script, not run it!" 1>&2
+  exit 1
+fi
+
+if [ -z "${PATH_ORIG}" ]; then export PATH_ORIG="${PATH}"; fi
+
+WD=`pwd`
+export RIDE_BIN="/cygdrive/c/Program Files/Raisonance/Ride/arm-gcc/bin"
+export BUILDROOT_BIN="${WD}/../buildroot/build_arm_nofpu/staging_dir/bin"
+export PATH="${BUILDROOT_BIN}:${RIDE_BIN}:/sbin:/usr/sbin:${PATH_ORIG}"
+
+echo "PATH : ${PATH}"
diff --git a/nuttx/configs/vsn/src/Makefile b/nuttx/configs/vsn/src/Makefile
new file mode 100644
index 000000000..f6d03d41f
--- /dev/null
+++ b/nuttx/configs/vsn/src/Makefile
@@ -0,0 +1,94 @@
+############################################################################
+# configs/vsn/src/Makefile
+#
+#   Copyright (C) 2009-2010 Gregory Nutt. All rights reserved.
+#   Copyright (c) 2011 Uros Platise. All rights reserved.
+#
+#   Authors: Gregory Nutt <spudmonkey@racsa.co.cr>
+#            Uros Platise <uros.platise@isotel.eu>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+-include $(TOPDIR)/Make.defs
+
+CFLAGS		+= -I$(TOPDIR)/sched
+
+ASRCS		= 
+AOBJS		= $(ASRCS:.S=$(OBJEXT))
+
+CSRCS		= up_sysclock.c up_boot.c up_leds.c up_buttons.c up_spi.c up_usbdev.c 
+
+ifeq ($(CONFIG_EXAMPLES_NSH_ARCHINIT),y)
+CSRCS		+= up_nsh.c
+endif
+ifeq ($(CONFIG_APP_DIR),examples/usbstorage)
+CSRCS		+= up_usbstrg.c
+endif
+COBJS		= $(CSRCS:.c=$(OBJEXT))
+
+SRCS		= $(ASRCS) $(CSRCS)
+OBJS		= $(AOBJS) $(COBJS)
+
+ARCH_SRCDIR	= $(TOPDIR)/arch/$(CONFIG_ARCH)/src
+ifeq ($(WINTOOL),y)
+  CFLAGS	+= -I "${shell cygpath -w $(ARCH_SRCDIR)/chip}" \
+  		   -I "${shell cygpath -w $(ARCH_SRCDIR)/common}" \
+  		   -I "${shell cygpath -w $(ARCH_SRCDIR)/cortexm3}"
+else
+  CFLAGS	+= -I$(ARCH_SRCDIR)/chip -I$(ARCH_SRCDIR)/common -I$(ARCH_SRCDIR)/cortexm3
+endif
+
+all: libboard$(LIBEXT)
+
+$(AOBJS): %$(OBJEXT): %.S
+	$(call ASSEMBLE, $<, $@)
+
+$(COBJS) $(LINKOBJS): %$(OBJEXT): %.c
+	$(call COMPILE, $<, $@)
+
+libboard$(LIBEXT): $(OBJS)
+	@( for obj in $(OBJS) ; do \
+		$(call ARCHIVE, $@, $${obj}); \
+	done ; )
+
+.depend: Makefile $(SRCS)
+	@$(MKDEP) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
+	@touch $@
+
+depend: .depend
+
+clean:
+	@rm -f libboard$(LIBEXT) *~ .*.swp
+	$(call CLEAN)
+
+distclean: clean
+	@rm -f Make.dep .depend
+
+-include Make.dep
diff --git a/nuttx/configs/vsn/src/up_boot.c b/nuttx/configs/vsn/src/up_boot.c
new file mode 100644
index 000000000..df05a10bf
--- /dev/null
+++ b/nuttx/configs/vsn/src/up_boot.c
@@ -0,0 +1,105 @@
+/************************************************************************************
+ * configs/vsn/src/up_boot.c
+ * arch/arm/src/board/up_boot.c
+ *
+ *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Copyright (c) 2011 Uros Platise. All rights reserved.
+ *
+ *   Authors: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *            Uros Platise <uros.platise@isotel.eu>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <debug.h>
+
+#include <arch/board/board.h>
+
+#include "up_arch.h"
+#include "vsn-internal.h"
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: stm32_boardinitialize
+ *
+ * Description:
+ *   All STM32 architectures must provide the following entry point.  This entry point
+ *   is called early in the intitialization -- after all memory has been configured
+ *   and mapped but before any devices have been initialized.
+ *
+ ************************************************************************************/
+
+void stm32_boardinitialize(void)
+{
+  /* Configure SPI chip selects if 1) SPI is not disabled, and 2) the weak function
+   * stm32_spiinitialize() has been brought into the link.
+   */
+
+#if defined(CONFIG_STM32_SPI1) || defined(CONFIG_STM32_SPI2)
+  if (stm32_spiinitialize)
+    {
+      stm32_spiinitialize();
+    }
+#endif
+
+   /* Initialize USB is 1) USBDEV is selected, 2) the USB controller is not
+    * disabled, and 3) the weak function stm32_usbinitialize() has been brought
+    * into the build.
+    */
+
+#if defined(CONFIG_USBDEV) && defined(CONFIG_STM32_USB)
+  if (stm32_usbinitialize)
+    {
+      stm32_usbinitialize();
+    }
+#endif
+
+  /* Configure on-board LEDs if LED support has been selected. */
+
+#ifdef CONFIG_ARCH_LEDS
+  up_ledinit();
+#endif
+}
diff --git a/nuttx/configs/vsn/src/up_buttons.c b/nuttx/configs/vsn/src/up_buttons.c
new file mode 100644
index 000000000..27284a8d0
--- /dev/null
+++ b/nuttx/configs/vsn/src/up_buttons.c
@@ -0,0 +1,84 @@
+/****************************************************************************
+ * configs/vsn-1.2/src/up_buttons.c
+ *
+ *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2011 Uros Platise. All rights reserved.
+ *
+ *   Authors: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *            Uros Platise <uros.platise@isotel.eu>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <stdint.h>
+#include <arch/board/board.h>
+#include "vsn-internal.h"
+
+#ifdef CONFIG_ARCH_BUTTONS
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_buttoninit
+ ****************************************************************************/
+
+void up_buttoninit(void)
+{
+  stm32_configgpio(GPIO_PUSHBUTTON);
+}
+
+/****************************************************************************
+ * Name: up_buttons
+ ****************************************************************************/
+
+uint8_t up_buttons(void)
+{
+  return stm32_gpioread(GPIO_PUSHBUTTON);
+}
+
+#endif /* CONFIG_ARCH_BUTTONS */
diff --git a/nuttx/configs/vsn/src/up_leds.c b/nuttx/configs/vsn/src/up_leds.c
new file mode 100644
index 000000000..a936aac2e
--- /dev/null
+++ b/nuttx/configs/vsn/src/up_leds.c
@@ -0,0 +1,116 @@
+/****************************************************************************
+ * configs/vsn-1.2/src/up_leds.c
+ * arch/arm/src/board/up_leds.c
+ *
+ *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2011 Uros Platise. All rights reserved.
+ *
+ *   Authors: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *            Uros Platise <uros.platise@isotel.eu>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <debug.h>
+
+#include <arch/board/board.h>
+#include "vsn-internal.h"
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/* Enables debug output from this file (needs CONFIG_DEBUG with
+ * CONFIG_DEBUG_VERBOSE too)
+ */
+
+#undef LED_DEBUG  /* Define to enable debug */
+
+#ifdef LED_DEBUG
+#  define leddbg  lldbg
+#  define ledvdbg llvdbg
+#else
+#  define leddbg(x...)
+#  define ledvdbg(x...)
+#endif
+
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+static void led_setonoff(unsigned int bits)
+{
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_ledinit
+ ****************************************************************************/
+
+#ifdef CONFIG_ARCH_LEDS
+void up_ledinit(void)
+{
+   stm32_configgpio(GPIO_LED);
+}
+
+/****************************************************************************
+ * Name: up_ledon
+ ****************************************************************************/
+
+void up_ledon(int led)
+{
+  if (led==LED_IDLE) stm32_gpiowrite(GPIO_LED, true);
+}
+
+/****************************************************************************
+ * Name: up_ledoff
+ ****************************************************************************/
+
+void up_ledoff(int led)
+{
+  if (led==LED_IDLE) stm32_gpiowrite(GPIO_LED, false);
+}
+
+#endif /* CONFIG_ARCH_LEDS */
diff --git a/nuttx/configs/vsn/src/up_nsh.c b/nuttx/configs/vsn/src/up_nsh.c
new file mode 100644
index 000000000..323e91a44
--- /dev/null
+++ b/nuttx/configs/vsn/src/up_nsh.c
@@ -0,0 +1,215 @@
+/****************************************************************************
+ * config/vsn/src/up_nsh.c
+ * arch/arm/src/board/up_nsh.c
+ *
+ *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2011 Uros Platise. All rights reserved.
+ *
+ *   Authors: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *            Uros Platise <uros.platise@isotel.eu>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <debug.h>
+#include <errno.h>
+
+#ifdef CONFIG_STM32_SPI1
+#  include <nuttx/spi.h>
+#  include <nuttx/mtd.h>
+#endif
+
+#ifdef CONFIG_STM32_SDIO
+#  include <nuttx/sdio.h>
+#  include <nuttx/mmcsd.h>
+#endif
+
+#include "vsn-internal.h"
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+/* Configuration ************************************************************/
+
+/* For now, don't build in any SPI1 support -- NSH is not using it */
+
+#undef CONFIG_STM32_SPI1
+
+/* PORT and SLOT number probably depend on the board configuration */
+
+#ifdef CONFIG_ARCH_BOARD_VSN
+#  define CONFIG_EXAMPLES_NSH_HAVEUSBDEV 1
+#  define CONFIG_EXAMPLES_NSH_HAVEMMCSD  1
+#  if defined(CONFIG_EXAMPLES_NSH_MMCSDSLOTNO) && CONFIG_EXAMPLES_NSH_MMCSDSLOTNO != 0
+#    error "Only one MMC/SD slot"
+#    undef CONFIG_EXAMPLES_NSH_MMCSDSLOTNO
+#  endif
+#  ifndef CONFIG_EXAMPLES_NSH_MMCSDSLOTNO
+#    define CONFIG_EXAMPLES_NSH_MMCSDSLOTNO 0
+#  endif
+#else
+   /* Add configuration for new STM32 boards here */
+#  undef CONFIG_EXAMPLES_NSH_HAVEUSBDEV
+#  undef CONFIG_EXAMPLES_NSH_HAVEMMCSD
+#endif
+
+/* Can't support USB features if USB is not enabled */
+
+#ifndef CONFIG_USBDEV
+#  undef CONFIG_EXAMPLES_NSH_HAVEUSBDEV
+#endif
+
+/* Can't support MMC/SD features if mountpoints are disabled or if SDIO support
+ * is not enabled.
+ */
+
+#if defined(CONFIG_DISABLE_MOUNTPOINT) || !defined(CONFIG_STM32_SDIO)
+#  undef CONFIG_EXAMPLES_NSH_HAVEMMCSD
+#endif
+
+#ifndef CONFIG_EXAMPLES_NSH_MMCSDMINOR
+#  define CONFIG_EXAMPLES_NSH_MMCSDMINOR 0
+#endif
+
+/* Debug ********************************************************************/
+
+#ifdef CONFIG_CPP_HAVE_VARARGS
+#  ifdef CONFIG_DEBUG
+#    define message(...) lib_lowprintf(__VA_ARGS__)
+#  else
+#    define message(...) printf(__VA_ARGS__)
+#  endif
+#else
+#  ifdef CONFIG_DEBUG
+#    define message lib_lowprintf
+#  else
+#    define message printf
+#  endif
+#endif
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nsh_archinitialize
+ *
+ * Description:
+ *   Perform architecture specific initialization
+ *
+ ****************************************************************************/
+
+int nsh_archinitialize(void)
+{
+#ifdef CONFIG_STM32_SPI1
+  FAR struct spi_dev_s *spi;
+  FAR struct mtd_dev_s *mtd;
+#endif
+#ifdef CONFIG_EXAMPLES_NSH_HAVEMMCSD
+  FAR struct sdio_dev_s *sdio;
+  int ret;
+#endif
+
+  /* Configure SPI-based devices */
+
+#ifdef CONFIG_STM32_SPI1
+  /* Get the SPI port */
+
+  message("nsh_archinitialize: Initializing SPI port 0\n");
+  spi = up_spiinitialize(0);
+  if (!spi)
+    {
+      message("nsh_archinitialize: Failed to initialize SPI port 0\n");
+      return -ENODEV;
+    }
+  message("nsh_archinitialize: Successfully initialized SPI port 0\n");
+
+  /* Now bind the SPI interface to the M25P64/128 SPI FLASH driver */
+
+  message("nsh_archinitialize: Bind SPI to the SPI flash driver\n");
+  mtd = m25p_initialize(spi);
+  if (!mtd)
+    {
+      message("nsh_archinitialize: Failed to bind SPI port 0 to the SPI FLASH driver\n");
+      return -ENODEV;
+    }
+  message("nsh_archinitialize: Successfully bound SPI port 0 to the SPI FLASH driver\n");
+#warning "Now what are we going to do with this SPI FLASH driver?"
+#endif
+
+  /* Create the SPI FLASH MTD instance */
+  /* The M25Pxx is not a give media to implement a file system..
+   * its block sizes are too large
+   */
+
+  /* Mount the SDIO-based MMC/SD block driver */
+
+#ifdef CONFIG_EXAMPLES_NSH_HAVEMMCSD
+  /* First, get an instance of the SDIO interface */
+
+  message("nsh_archinitialize: Initializing SDIO slot %d\n",
+          CONFIG_EXAMPLES_NSH_MMCSDSLOTNO);
+  sdio = sdio_initialize(CONFIG_EXAMPLES_NSH_MMCSDSLOTNO);
+  if (!sdio)
+    {
+      message("nsh_archinitialize: Failed to initialize SDIO slot %d\n",
+              CONFIG_EXAMPLES_NSH_MMCSDSLOTNO);
+      return -ENODEV;
+    }
+
+  /* Now bind the SPI interface to the MMC/SD driver */
+
+  message("nsh_archinitialize: Bind SDIO to the MMC/SD driver, minor=%d\n",
+          CONFIG_EXAMPLES_NSH_MMCSDMINOR);
+  ret = mmcsd_slotinitialize(CONFIG_EXAMPLES_NSH_MMCSDMINOR, sdio);
+  if (ret != OK)
+    {
+      message("nsh_archinitialize: Failed to bind SDIO to the MMC/SD driver: %d\n", ret);
+      return ret;
+    }
+  message("nsh_archinitialize: Successfully bound SDIO to the MMC/SD driver\n");
+  
+  /* Then let's guess and say that there is a card in the slot.  I need to check to
+   * see if the VSN board supports a GPIO to detect if there is a card in
+   * the slot.
+   */
+
+   sdio_mediachange(sdio, true);
+#endif
+  return OK;
+}
diff --git a/nuttx/configs/vsn/src/up_spi.c b/nuttx/configs/vsn/src/up_spi.c
new file mode 100644
index 000000000..bfc5f8682
--- /dev/null
+++ b/nuttx/configs/vsn/src/up_spi.c
@@ -0,0 +1,181 @@
+/************************************************************************************
+ * configs/vsn/src/up_spi.c
+ * arch/arm/src/board/up_spi.c
+ *
+ *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2011 Uros Platise. All rights reserved.
+ *
+ *   Authors: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *            Uros Platise <uros.platise@isotel.eu>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <debug.h>
+
+#include <nuttx/spi.h>
+#include <arch/board/board.h>
+
+#include "up_arch.h"
+#include "chip.h"
+#include "stm32_internal.h"
+#include "vsn-internal.h"
+
+#if defined(CONFIG_STM32_SPI1) || defined(CONFIG_STM32_SPI2)
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/* Enables debug output from this file (needs CONFIG_DEBUG too) */
+
+#undef SPI_DEBUG   /* Define to enable debug */
+#undef SPI_VERBOSE /* Define to enable verbose debug */
+
+#ifdef SPI_DEBUG
+#  define spidbg  lldbg
+#  ifdef SPI_VERBOSE
+#    define spivdbg lldbg
+#  else
+#    define spivdbg(x...)
+#  endif
+#else
+#  undef SPI_VERBOSE
+#  define spidbg(x...)
+#  define spivdbg(x...)
+#endif
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: stm32_spiinitialize
+ *
+ * Description:
+ *   Called to configure SPI chip select GPIO pins for the VSN board.
+ *
+ ************************************************************************************/
+
+void weak_function stm32_spiinitialize(void)
+{
+  /* NOTE: Clocking for SPI1 and/or SPI2 was already provided in stm32_rcc.c.
+   *       Configurations of SPI pins is performed in stm32_spi.c.
+   *       Here, we only initialize chip select pins unique to the board
+   *       architecture.
+   */
+
+#ifdef CONFIG_STM32_SPI1
+  /* Configure the SPI-based FLASH CS GPIO */
+
+  stm32_configgpio(GPIO_FLASH_CS);
+#endif
+}
+
+/****************************************************************************
+ * Name:  stm32_spi1/2/3select and stm32_spi1/2/3status
+ *
+ * Description:
+ *   The external functions, stm32_spi1/2/3select and stm32_spi1/2/3status must be
+ *   provided by board-specific logic.  They are implementations of the select
+ *   and status methods of the SPI interface defined by struct spi_ops_s (see
+ *   include/nuttx/spi.h). All other methods (including up_spiinitialize())
+ *   are provided by common STM32 logic.  To use this common SPI logic on your
+ *   board:
+ *
+ *   1. Provide logic in stm32_boardinitialize() to configure SPI chip select
+ *      pins.
+ *   2. Provide stm32_spi1/2/3select() and stm32_spi1/2/3status() functions in your
+ *      board-specific logic.  These functions will perform chip selection and
+ *      status operations using GPIOs in the way your board is configured.
+ *   3. Add a calls to up_spiinitialize() in your low level application
+ *      initialization logic
+ *   4. The handle returned by up_spiinitialize() may then be used to bind the
+ *      SPI driver to higher level logic (e.g., calling
+ *      mmcsd_spislotinitialize(), for example, will bind the SPI driver to
+ *      the SPI MMC/SD driver).
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_STM32_SPI1
+void stm32_spi1select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected)
+{
+  spidbg("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
+
+  if (devid == SPIDEV_FLASH)
+  {
+    /* Set the GPIO low to select and high to de-select */
+
+    stm32_gpiowrite(GPIO_FLASH_CS, !selected);
+  }
+}
+
+uint8_t stm32_spi1status(FAR struct spi_dev_s *dev, enum spi_dev_e devid)
+{
+  return SPI_STATUS_PRESENT;
+}
+#endif
+
+#ifdef CONFIG_STM32_SPI2
+void stm32_spi2select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected)
+{
+  spidbg("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
+}
+
+uint8_t stm32_spi2status(FAR struct spi_dev_s *dev, enum spi_dev_e devid)
+{
+  return SPI_STATUS_PRESENT;
+}
+#endif
+
+#ifdef CONFIG_STM32_SPI3
+void stm32_spi3select(FAR struct spi_dev_s *dev, enum spi_dev_e devid, bool selected)
+{
+  spidbg("devid: %d CS: %s\n", (int)devid, selected ? "assert" : "de-assert");
+}
+
+uint8_t stm32_spi3status(FAR struct spi_dev_s *dev, enum spi_dev_e devid)
+{
+  return SPI_STATUS_PRESENT;
+}
+#endif
+
+#endif /* CONFIG_STM32_SPI1 || CONFIG_STM32_SPI2 */
diff --git a/nuttx/configs/vsn/src/up_sysclock.c b/nuttx/configs/vsn/src/up_sysclock.c
new file mode 100644
index 000000000..c93b251c1
--- /dev/null
+++ b/nuttx/configs/vsn/src/up_sysclock.c
@@ -0,0 +1,172 @@
+/****************************************************************************
+ * configs/vsn-1.2/src/up_sysclock.c
+ *
+ *   Copyright (C) 2011 Uros Platise. All rights reserved.
+ * 
+ *   Author: Uros Platise <uros.platise@isotel.eu>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/** \file
+  */
+
+#include <arch/board/board.h>
+#include "stm32_rcc.h"
+#include "stm32_flash.h"
+#include "up_internal.h"
+#include "up_arch.h"
+#include "chip.h"
+
+
+		/*--- Private ---*/
+
+/** Selects internal HSI Clock, SYSCLK = 36 MHz, HCLK = 36 MHz
+  *  - HSI at 8 MHz, :2 enters DPLL * 9, to get 36 MHz
+  *  - AHB prescaler is set to 1 for maximum performance of all peripherals and FRAM (18 Mbps)
+  *  - Suitable for start-up and lower power operation
+  *  - Flash Wait State = 1, since it is 64-bit prefetch, it satisfies two 32-bit instructions
+  *    (and branch losses a single cycle only, I found this as the best performance vs. frequency)
+  *  - Sleep with peripherals disabled is about 2.5 mA @ 36 MHz, HSI
+  * 
+  * \todo:
+  *   - dynamic clock scalling according to cross-peripheral requirements, AHB prescaler could
+  *     change if all other prescalers increase, to maintain the ratio and to have min. HCLK
+  *     possible; This is of interest when peripherals consume 50% of all power, as for instance
+  *     in sleep mode @ 36 MHz, HSI with all peripherals enabled, i = 7 mA, on 24 Mhz 4.8 mA and
+  *     on 16 MHz 3.2 mA only. 
+  * 
+  * \return Nothing, operation is always successful.
+  */
+void stm32_board_select_hsi(void)
+{
+	uint32_t regval;
+
+	// Are we running on HSE?
+	regval = getreg32(STM32_RCC_CR);
+	if (regval & RCC_CR_HSEON) {
+		
+		// \todo: check is if we are running on HSE, we need the step down sequenuce from HSE -> HSI
+		
+		return;	// do nothing at this time
+	}
+	
+	// Set FLASH prefetch buffer and 1 wait state
+	regval  = getreg32(STM32_FLASH_ACR);
+	regval &= ~ACR_LATENCY_MASK;
+	regval |= (ACR_LATENCY_1|ACR_PRTFBE);
+	putreg32(regval, STM32_FLASH_ACR);
+	 
+    // Set the HCLK source/divider
+	regval = getreg32(STM32_RCC_CFGR);
+	regval &= ~RCC_CFGR_HPRE_MASK;
+	regval |= STM32_RCC_CFGR_HPRE_HSI;
+	putreg32(regval, STM32_RCC_CFGR);
+
+    // Set the PCLK2 divider
+    regval = getreg32(STM32_RCC_CFGR);
+    regval &= ~RCC_CFGR_PPRE2_MASK;
+    regval |= STM32_RCC_CFGR_PPRE2;
+    putreg32(regval, STM32_RCC_CFGR);
+  
+    // Set the PCLK1 divider
+    regval = getreg32(STM32_RCC_CFGR);
+    regval &= ~RCC_CFGR_PPRE1_MASK;
+    regval |= STM32_RCC_CFGR_PPRE1;
+    putreg32(regval, STM32_RCC_CFGR);
+ 
+    // Set the PLL source = HSI, divider (/2) and multipler (*9)
+	regval = getreg32(STM32_RCC_CFGR);
+	regval &= ~(RCC_CFGR_PLLSRC|RCC_CFGR_PLLXTPRE|RCC_CFGR_PLLMUL_MASK);
+	regval |= (STM32_CFGR_PLLSRC_HSI|STM32_CFGR_PLLMUL_HSI);
+	putreg32(regval, STM32_RCC_CFGR);
+ 
+    // Enable the PLL
+	regval = getreg32(STM32_RCC_CR);
+	regval |= RCC_CR_PLLON;
+	putreg32(regval, STM32_RCC_CR);
+ 
+    // Wait until the PLL is ready
+	while ((getreg32(STM32_RCC_CR) & RCC_CR_PLLRDY) == 0);
+ 
+    // Select the system clock source (probably the PLL)
+    regval  = getreg32(STM32_RCC_CFGR);
+    regval &= ~RCC_CFGR_SW_MASK;
+    regval |= STM32_SYSCLK_SW;
+    putreg32(regval, STM32_RCC_CFGR);
+
+    // Wait until the selected source is used as the system clock source
+    while ((getreg32(STM32_RCC_CFGR) & RCC_CFGR_SWS_MASK) != STM32_SYSCLK_SWS);
+}
+
+
+/** Selects external HSE Clock, SYSCLK = 72 MHz, HCLK = 36/72 MHz
+  *  - HSE at 9 MHz, DPLL * 8, to get 72 MHz
+  *  - Suitable for maximum performance and USB 
+  *  - Sleep power consumption at HSE and at 72 MHz is 5.5 mA (3.1 @ 36 MHz)
+  *  - Option AHB prescaler is set to :2 to be compatible with HSI to remain on HCLK = 36 MHz
+  *  - Flash memory running on 72 MHz needs two wait states
+  * 
+  * \return Clock selection status
+  * \retval 0 Successful
+  * \retval -1 External clock is not provided
+  * \retval -2 Could not lock to external clock
+  */
+int stm32_board_select_hse(void)
+{
+	// if (is cc1101 9 MHz clock output enabled), otherwise return with -1
+	// I think that clock register provides HSE valid signal to detect that as well.
+	
+	return 0;
+}
+
+
+		/*--- Interrupts ---*/
+
+
+/** TODO: Interrupt on lost HSE clock, change it to HSI, ... restarting is 
+  *   more complex as the step requires restart of CC1101 device driver;
+  *   so spawn a task for that... once cc1101 is restarted signal an event
+  *   to restart clock.
+  */
+void stm32_board_hse_lost(void)
+{
+}
+
+
+		/*--- Public API ---*/
+
+/** Setup system clock, enabled when:
+  *   - CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG
+  *  option is set in .config
+  */
+void stm32_board_clockconfig(void)
+{
+	stm32_board_select_hsi();
+}
diff --git a/nuttx/configs/vsn/src/up_usbdev.c b/nuttx/configs/vsn/src/up_usbdev.c
new file mode 100644
index 000000000..a30a8f8a1
--- /dev/null
+++ b/nuttx/configs/vsn/src/up_usbdev.c
@@ -0,0 +1,123 @@
+/************************************************************************************
+ * configs/svsn/src/up_usbdev.c
+ * arch/arm/src/board/up_boot.c
+ *
+ *   Copyright (C) 2009-2010 Gregory Nutt. All rights reserved.
+ *   Copyright (c) 2011 Uros Platise. All rights reserved.
+ *
+ *   Authors: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *            Uros Platise <uros.platise@isotel.eu>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/types.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <debug.h>
+
+#include <nuttx/usb/usbdev.h>
+#include <nuttx/usb/usbdev_trace.h>
+
+#include "up_arch.h"
+#include "stm32_internal.h"
+#include "vsn-internal.h"
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: stm32_usbinitialize
+ *
+ * Description:
+ *   Called to setup USB-related GPIO pins for the VSN board.
+ *
+ ************************************************************************************/
+
+void stm32_usbinitialize(void)
+{
+  /* USB Soft Connect Pullup: PB.14 */
+
+#if defined(GPIO_USB_PULLUP)
+  stm32_configgpio(GPIO_USB_PULLUP);
+#endif
+}
+
+/************************************************************************************
+ * Name:  stm32_usbpullup
+ *
+ * Description:
+ *   If USB is supported and the board supports a pullup via GPIO (for USB software
+ *   connect and disconnect), then the board software must provide stm32_pullup.
+ *   See include/nuttx/usb/usbdev.h for additional description of this method.
+ *   Alternatively, if no pull-up GPIO the following EXTERN can be redefined to be
+ *   NULL.
+ *
+ ************************************************************************************/
+
+int stm32_usbpullup(FAR struct usbdev_s *dev, bool enable)
+{
+  usbtrace(TRACE_DEVPULLUP, (uint16_t)enable);
+#if defined(GPIO_USB_PULLUP)
+  stm32_gpiowrite(GPIO_USB_PULLUP, !enable);
+#endif
+  return OK;
+}
+
+/************************************************************************************
+ * Name:  stm32_usbsuspend
+ *
+ * Description:
+ *   Board logic must provide the stm32_usbsuspend logic if the USBDEV driver is
+ *   used.  This function is called whenever the USB enters or leaves suspend mode.
+ *   This is an opportunity for the board logic to shutdown clocks, power, etc.
+ *   while the USB is suspended.
+ *
+ ************************************************************************************/
+
+void stm32_usbsuspend(FAR struct usbdev_s *dev, bool resume)
+{
+  ulldbg("resume: %d\n", resume);
+}
+
diff --git a/nuttx/configs/vsn/src/up_usbstrg.c b/nuttx/configs/vsn/src/up_usbstrg.c
new file mode 100644
index 000000000..2a34bab40
--- /dev/null
+++ b/nuttx/configs/vsn/src/up_usbstrg.c
@@ -0,0 +1,156 @@
+/****************************************************************************
+ * configs/vsn/src/up_usbstrg.c
+ *
+ *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Copyright (c) 2011 Uros Platise. All rights reserved.
+ *
+ *   Authors: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *            Uros Platise <uros.platise@isotel.eu>
+ *
+ * Configure and register the STM32 MMC/SD SDIO block driver.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdio.h>
+#include <debug.h>
+#include <errno.h>
+
+#include <nuttx/sdio.h>
+#include <nuttx/mmcsd.h>
+
+#include "vsn-internal.h"
+
+#ifdef CONFIG_STM32_SDIO
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+/* Configuration ************************************************************/
+
+#ifndef CONFIG_EXAMPLES_USBSTRG_DEVMINOR1
+#  define CONFIG_EXAMPLES_USBSTRG_DEVMINOR1 0
+#endif
+
+/* SLOT number(s) could depend on the board configuration */
+
+#ifdef CONFIG_ARCH_BOARD_VSN
+#  undef STM32_MMCSDSLOTNO
+#  define STM32_MMCSDSLOTNO 0
+#else
+   /* Add configuration for new STM32 boards here */
+#  error "Unrecognized STM32 board"
+#endif
+
+/* Debug ********************************************************************/
+
+#ifdef CONFIG_CPP_HAVE_VARARGS
+#  ifdef CONFIG_DEBUG
+#    define message(...) lib_lowprintf(__VA_ARGS__)
+#    define msgflush()
+#  else
+#    define message(...) printf(__VA_ARGS__)
+#    define msgflush() fflush(stdout)
+#  endif
+#else
+#  ifdef CONFIG_DEBUG
+#    define message lib_lowprintf
+#    define msgflush()
+#  else
+#    define message printf
+#    define msgflush() fflush(stdout)
+#  endif
+#endif
+
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: usbstrg_archinitialize
+ *
+ * Description:
+ *   Perform architecture specific initialization
+ *
+ ****************************************************************************/
+
+int usbstrg_archinitialize(void)
+{
+  FAR struct sdio_dev_s *sdio;
+  int ret;
+
+  /* First, get an instance of the SDIO interface */
+
+  message("usbstrg_archinitialize: "
+          "Initializing SDIO slot %d\n",
+          STM32_MMCSDSLOTNO);
+
+  sdio = sdio_initialize(STM32_MMCSDSLOTNO);
+  if (!sdio)
+    {
+      message("usbstrg_archinitialize: Failed to initialize SDIO slot %d\n",
+              STM32_MMCSDSLOTNO);
+      return -ENODEV;
+    }
+
+  /* Now bind the SPI interface to the MMC/SD driver */
+
+  message("usbstrg_archinitialize: "
+          "Bind SDIO to the MMC/SD driver, minor=%d\n",
+          CONFIG_EXAMPLES_USBSTRG_DEVMINOR1);
+
+  ret = mmcsd_slotinitialize(CONFIG_EXAMPLES_USBSTRG_DEVMINOR1, sdio);
+  if (ret != OK)
+    {
+      message("usbstrg_archinitialize: "
+              "Failed to bind SDIO to the MMC/SD driver: %d\n",
+              ret);
+      return ret;
+    }
+  message("usbstrg_archinitialize: "
+          "Successfully bound SDIO to the MMC/SD driver\n");
+  
+  /* Then let's guess and say that there is a card in the slot.  I need to check to
+   * see if the VSN board supports a GPIO to detect if there is a card in
+   * the slot.
+   */
+
+   sdio_mediachange(sdio, true);
+   return OK;
+}
+
+#endif /* CONFIG_STM32_SDIO */
diff --git a/nuttx/configs/vsn/src/vsn-internal.h b/nuttx/configs/vsn/src/vsn-internal.h
new file mode 100644
index 000000000..832dff146
--- /dev/null
+++ b/nuttx/configs/vsn/src/vsn-internal.h
@@ -0,0 +1,121 @@
+/************************************************************************************
+ * configs/vsn/src/vsn-internal.h
+ * arch/arm/src/board/vsn-internal.n
+ *
+ *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
+ *   Copyright (c) 2011 Uros Platise. All rights reserved.
+ *
+ *   Authors: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *            Uros Platise <uros.platise@isotel.eu>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+#ifndef __CONFIGS_VSN_1_2_SRC_VSN_INTERNAL_H
+#define __CONFIGS_VSN_1_2_SRC_VSN_INTERNAL_H
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+#include <nuttx/compiler.h>
+#include <stdint.h>
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/* How many SPI modules does this chip support? The LM3S6918 supports 2 SPI
+ * modules (others may support more -- in such case, the following must be
+ * expanded).
+ */
+
+#if STM32_NSPI < 1
+#  undef CONFIG_STM32_SPI1
+#  undef CONFIG_STM32_SPI2
+#elif STM32_NSPI < 2
+#  undef CONFIG_STM32_SPI2
+#endif
+
+/* VSN 1.2 GPIOs **************************************************************/
+
+/* LED */
+
+#define GPIO_LED		(GPIO_OUTPUT|GPIO_CNF_OUTPP|GPIO_MODE_2MHz|GPIO_OUTPUT_CLEAR|GPIO_PORTB|GPIO_PIN2)
+                         
+/* BUTTON - Note that after a good second button causes hardware reset */
+
+#define GPIO_PUSHBUTTON    (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_MODE_INPUT|GPIO_PORTC|GPIO_PIN5)
+
+/************************************************************************************
+ * Public Types
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public data
+ ************************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: stm32_spiinitialize
+ *
+ * Description:
+ *   Called to configure SPI chip select GPIO pins for the VSN board.
+ *
+ ************************************************************************************/
+
+extern void weak_function stm32_spiinitialize(void);
+
+/************************************************************************************
+ * Name: stm32_usbinitialize
+ *
+ * Description:
+ *   Called to setup USB-related GPIO pins for the VSN board.
+ *
+ ************************************************************************************/
+
+extern void weak_function stm32_usbinitialize(void);
+
+/************************************************************************************
+ * Name: stm32_extcontextsave
+ *
+ * Description:
+ *  Save current GPIOs that will used by external memory configurations
+ *
+ ************************************************************************************/
+
+#endif /* __ASSEMBLY__ */
+#endif /* __CONFIGS_VSN_1_2_SRC_VSN_INTERNAL_H */
+
author	patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>	2011-02-27 15:42:07 +0000
committer	patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>	2011-02-27 15:42:07 +0000
commit	b1374fdcf46709b5e014dc9dbfc78e0394e8d6aa (patch)
tree	1a350b3fb02cc7bddae7d11cb54cdcb6a0629af5 /nuttx
parent	cc5f5a4daa8d8928bf85f6dc653602133511586f (diff)
download	nuttx-b1374fdcf46709b5e014dc9dbfc78e0394e8d6aa.tar.gz nuttx-b1374fdcf46709b5e014dc9dbfc78e0394e8d6aa.tar.bz2 nuttx-b1374fdcf46709b5e014dc9dbfc78e0394e8d6aa.zip