Add UDP discovery configuration for the STM3240G-EVAL (from Max Holtzberg)

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5138 42af7a65-404d-4744-a932-0658087f49c3

14 files changed, 1366 insertions, 87 deletions

diff --git a/apps/examples/Kconfig b/apps/examples/Kconfig
index a20f7c2e7..786012593 100644
--- a/apps/examples/Kconfig
+++ b/apps/examples/Kconfig
@@ -3,115 +3,115 @@
 # see misc/tools/kconfig-language.txt.
 #
 
-menu "ADC example"
+menu "ADC Example"
 source "$APPSDIR/examples/adc/Kconfig"
 endmenu
 
-menu "Buttons example"
+menu "Buttons Example"
 source "$APPSDIR/examples/buttons/Kconfig"
 endmenu
 
-menu "CAN example"
+menu "CAN Example"
 source "$APPSDIR/examples/can/Kconfig"
 endmenu
 
-menu "USB CDC/ACM class driver example"
+menu "USB CDC/ACM Class Driver Example"
 source "$APPSDIR/examples/cdcacm/Kconfig"
 endmenu
 
-menu "USB composite class driver example"
+menu "USB composite Class Driver Example"
 source "$APPSDIR/examples/composite/Kconfig"
 endmenu
 
-menu "DHCP server example"
+menu "DHCP Server Example"
 source "$APPSDIR/examples/dhcpd/Kconfig"
 endmenu
 
-menu "FTP client example"
+menu "FTP Client Example"
 source "$APPSDIR/examples/ftpc/Kconfig"
 endmenu
 
-menu "FTP server example"
+menu "FTP Server Example"
 source "$APPSDIR/examples/ftpd/Kconfig"
 endmenu
 
-menu "\"Hello, World!\" example"
+menu "\"Hello, World!\" Example"
 source "$APPSDIR/examples/hello/Kconfig"
 endmenu
 
-menu "\"Hello, World!\" C++ example"
+menu "\"Hello, World!\" C++ Example"
 source "$APPSDIR/examples/helloxx/Kconfig"
 endmenu
 
-menu "USB HID keyboard example"
+menu "USB HID Keyboard Example"
 source "$APPSDIR/examples/hidkbd/Kconfig"
 endmenu
 
-menu "IGMP example"
+menu "IGMP Example"
 source "$APPSDIR/examples/igmp/Kconfig"
 endmenu
 
-menu "LCD read/write example"
+menu "LCD Read/Write Example"
 source "$APPSDIR/examples/lcdrw/Kconfig"
 endmenu
 
-menu "Memory management example"
+menu "Memory Management Example"
 source "$APPSDIR/examples/mm/Kconfig"
 endmenu
 
-menu "File system mount example"
+menu "File System Mount Example"
 source "$APPSDIR/examples/mount/Kconfig"
 endmenu
 
-menu "FreeModBus example"
+menu "FreeModBus Example"
 source "$APPSDIR/examples/modbus/Kconfig"
 endmenu
 
-menu "Network test example"
+menu "Network Test Example"
 source "$APPSDIR/examples/nettest/Kconfig"
 endmenu
 
-menu "NuttShell (NSH) example"
+menu "NuttShell (NSH) Example"
 source "$APPSDIR/examples/nsh/Kconfig"
 endmenu
 
-menu "NULL example"
+menu "NULL Example"
 source "$APPSDIR/examples/null/Kconfig"
 endmenu
 
-menu "NX graphics example"
+menu "NX Graphics Example"
 source "$APPSDIR/examples/nx/Kconfig"
 endmenu
 
-menu "NxConsole example"
+menu "NxConsole Example"
 source "$APPSDIR/examples/nxconsole/Kconfig"
 endmenu
 
-menu "NXFFS file system example"
+menu "NXFFS File System Example"
 source "$APPSDIR/examples/nxffs/Kconfig"
 endmenu
 
-menu "NXFLAT example"
+menu "NXFLAT Example"
 source "$APPSDIR/examples/nxflat/Kconfig"
 endmenu
 
-menu "NX graphics \"Hello, World!\" example"
+menu "NX Graphics \"Hello, World!\" Example"
 source "$APPSDIR/examples/nxhello/Kconfig"
 endmenu
 
-menu "NX graphics image example"
+menu "NX Graphics image Example"
 source "$APPSDIR/examples/nximage/Kconfig"
 endmenu
 
-menu "NX graphics lines example"
+menu "NX Graphics lines Example"
 source "$APPSDIR/examples/nxlines/Kconfig"
 endmenu
 
-menu "NX graphics text example"
+menu "NX Graphics Text Example"
 source "$APPSDIR/examples/nxtext/Kconfig"
 endmenu
 
-menu "OS test example"
+menu "OS Test Example"
 source "$APPSDIR/examples/ostest/Kconfig"
 endmenu
 
@@ -119,82 +119,86 @@ menu "Pascal \"Hello, World!\"example"
 source "$APPSDIR/examples/pashello/Kconfig"
 endmenu
 
-menu "Pipe example"
+menu "Pipe Example"
 source "$APPSDIR/examples/pipe/Kconfig"
 endmenu
 
-menu "Poll example"
+menu "Poll Example"
 source "$APPSDIR/examples/poll/Kconfig"
 endmenu
 
-menu "Pulse width modulation (PWM) example"
+menu "Pulse Width Modulation (PWM) Example"
 source "$APPSDIR/examples/pwm/Kconfig"
 endmenu
 
-menu "Quadrature encoder example"
+menu "Quadrature Encoder Example"
 source "$APPSDIR/examples/qencoder/Kconfig"
 endmenu
 
-menu "RGMP example"
+menu "RGMP Example"
 source "$APPSDIR/examples/rgmp/Kconfig"
 endmenu
 
-menu "ROMFS example"
+menu "ROMFS Example"
 source "$APPSDIR/examples/romfs/Kconfig"
 endmenu
 
-menu "sendmail example"
+menu "sendmail Example"
 source "$APPSDIR/examples/sendmail/Kconfig"
 endmenu
 
-menu "Serial loopback example"
+menu "Serial Loopback Example"
 source "$APPSDIR/examples/serloop/Kconfig"
 endmenu
 
-menu "Telnet daemon example"
+menu "Telnet Daemon Example"
 source "$APPSDIR/examples/telnetd/Kconfig"
 endmenu
 
-menu "THTTPD web server example"
+menu "THTTPD Web Server Example"
 source "$APPSDIR/examples/thttpd/Kconfig"
 endmenu
 
-menu "TIFF generation example"
+menu "TIFF Generation Example"
 source "$APPSDIR/examples/tiff/Kconfig"
 endmenu
 
-menu "Touchscreen example"
+menu "Touchscreen Example"
 source "$APPSDIR/examples/touchscreen/Kconfig"
 endmenu
 
-menu "UDP example"
+menu "UDP Example"
 source "$APPSDIR/examples/udp/Kconfig"
 endmenu
 
-menu "uIP web server example"
+menu "UDP Discovery Daemon Example"
+source "$APPSDIR/examples/discover/Kconfig"
+endmenu
+
+menu "uIP Web Server Example"
 source "$APPSDIR/examples/uip/Kconfig"
 endmenu
 
-menu "USB serial test example"
+menu "USB Serial Test Example"
 source "$APPSDIR/examples/usbserial/Kconfig"
 endmenu
 
-menu "USB mass storage class example"
+menu "USB Mass Storage Class Example"
 source "$APPSDIR/examples/usbstorage/Kconfig"
 endmenu
 
-menu "USB serial terminal example"
+menu "USB Serial Terminal Example"
 source "$APPSDIR/examples/usbterm/Kconfig"
 endmenu
 
-menu "Watchdog timer example"
+menu "Watchdog timer Example"
 source "$APPSDIR/examples/watchdog/Kconfig"
 endmenu
 
-menu "wget example"
+menu "wget Example"
 source "$APPSDIR/examples/wget/Kconfig"
 endmenu
 
-menu "WLAN example"
+menu "WLAN Example"
 source "$APPSDIR/examples/wlan/Kconfig"
 endmenu
diff --git a/apps/examples/Make.defs b/apps/examples/Make.defs
index aa8d83733..3bc72b52e 100644
--- a/apps/examples/Make.defs
+++ b/apps/examples/Make.defs
@@ -58,6 +58,10 @@ ifeq ($(CONFIG_EXAMPLES_DHCPD),y)
 CONFIGURED_APPS += examples/dhcpd
 endif
 
+ifeq ($(CONFIG_EXAMPLE_DISCOVER),y)
+CONFIGURED_APPS += examples/discover
+endif
+
 ifeq ($(CONFIG_EXAMPLES_FTPC),y)
 CONFIGURED_APPS += examples/ftpc
 endif
diff --git a/apps/examples/Makefile b/apps/examples/Makefile
index ad5be6497..453f99ce7 100644
--- a/apps/examples/Makefile
+++ b/apps/examples/Makefile
@@ -37,11 +37,12 @@
 
 # Sub-directories
 
-SUBDIRS = adc buttons can cdcacm composite dhcpd ftpc ftpd hello helloxx \
-	hidkbd igmp lcdrw mm modbus mount nettest nsh null nx nxconsole nxffs \
-	nxflat nxhello nximage nxlines nxtext ostest pashello pipe poll pwm \
-	qencoder rgmp romfs serloop telnetd thttpd tiff touchscreen udp uip \
-	usbserial sendmail usbstorage usbterm watchdog wget wlan
+SUBDIRS  = adc buttons can cdcacm composite dhcpd discover ftpc ftpd hello
+SUBDIRS += helloxx hidkbd igmp lcdrw mm modbus mount nettest nsh null nx
+SUBDIRS += nxconsole nxffs nxflat nxhello nximage nxlines nxtext ostest
+SUBDIRS += pashello pipe poll pwm qencoder rgmp romfs serloop telnetd
+SUBDIRS += thttpd tiff touchscreen udp uip usbserial sendmail usbstorage
+SUBDIRS += usbterm watchdog wget wlan
 
 # Sub-directories that might need context setup.  Directories may need
 # context setup for a variety of reasons, but the most common is because
@@ -56,7 +57,8 @@ SUBDIRS = adc buttons can cdcacm composite dhcpd ftpc ftpd hello helloxx \
 CNTXTDIRS = pwm
 
 ifeq ($(CONFIG_NSH_BUILTIN_APPS),y)
-CNTXTDIRS += adc can cdcacm composite ftpd dhcpd modbus nettest qencoder telnetd watchdog
+CNTXTDIRS += adc can cdcacm composite discover ftpd dhcpd modbus nettest
+CNTXTDIRS += qencoder telnetd watchdog
 endif
 
 ifeq ($(CONFIG_EXAMPLES_HELLO_BUILTIN),y)
diff --git a/apps/examples/README.txt b/apps/examples/README.txt
index 0d327ebfb..8a7a94c3e 100644
--- a/apps/examples/README.txt
+++ b/apps/examples/README.txt
@@ -278,7 +278,7 @@ examples/dhcpd
 examples/discover
 ^^^^^^^^^^^^^^^^^
 
-  This example execises netutils/discover utility.  This example initializes
+  This example exercises netutils/discover utility.  This example initializes
   and starts the UDP discover daemon. This daemon is useful for discovering
   devices in local networks, especially with DHCP configured devices.  It
   listens for UDP broadcasts which also can include a device class so that
diff --git a/apps/examples/discover/Kconfig b/apps/examples/discover/Kconfig
index afdb9ff82..c867b56f3 100644
--- a/apps/examples/discover/Kconfig
+++ b/apps/examples/discover/Kconfig
@@ -3,7 +3,7 @@
 # see misc/tools/kconfig-language.txt.
 #
 
-config EXAMPLES_DISCOVER
+config EXAMPLE_DISCOVER
 	bool "UDP Discovery Example"
 	default n
 	depends on NET_UDP
@@ -17,11 +17,13 @@ config EXAMPLES_DISCOVER
 		It is also possible to address all classes with a kind of broadcast
 		discover.
 
-if EXAMPLES_DISCOVER
+if EXAMPLE_DISCOVER
 
 config EXAMPLE_DISCOVER_DHCPC
 	bool "DHCP Client"
 	default n
+	select NETUTILS_DHCPC
+	select NETUTILS_RESOLV
 
 config EXAMPLE_DISCOVER_NOMAC
 	bool "Use canned MAC address"
@@ -30,6 +32,7 @@ config EXAMPLE_DISCOVER_NOMAC
 config EXAMPLE_DISCOVER_IPADDR
 	hex "Target IP address"
 	default 0x0a000002
+	depends on !EXAMPLE_DISCOVER_DHCPC
 
 config EXAMPLE_DISCOVER_DRIPADDR
 	hex "Router IP address"
diff --git a/apps/examples/discover/main.c b/apps/examples/discover/main.c
index b857e4f68..619995186 100644
--- a/apps/examples/discover/main.c
+++ b/apps/examples/discover/main.c
@@ -87,7 +87,6 @@
 
 int discover_main(int argc, char *argv[])
 {
-#ifndef CONFIG_NSH_BUILTIN_APPS
   struct in_addr addr;
 #if defined(CONFIG_EXAMPLE_DISCOVER_DHCPC) || defined(CONFIG_EXAMPLE_DISCOVER_NOMAC)
   uint8_t mac[IFHWADDRLEN];
@@ -147,30 +146,29 @@ int discover_main(int argc, char *argv[])
   printf("Getting IP address\n");
   if (handle)
     {
-        struct dhcpc_state ds;
-        (void)dhcpc_request(handle, &ds);
-        uip_sethostaddr("eth1", &ds.ipaddr);
-
-        if (ds.netmask.s_addr != 0)
-          {
-            uip_setnetmask("eth0", &ds.netmask);
-          }
-
-        if (ds.default_router.s_addr != 0)
-          {
-            uip_setdraddr("eth0", &ds.default_router);
-          }
-
-        if (ds.dnsaddr.s_addr != 0)
-          {
-            resolv_conf(&ds.dnsaddr);
-          }
-
-        dhcpc_close(handle);
-        printf("IP: %s\n", inet_ntoa(ds.ipaddr));
+      struct dhcpc_state ds;
+      (void)dhcpc_request(handle, &ds);
+      uip_sethostaddr("eth1", &ds.ipaddr);
+
+      if (ds.netmask.s_addr != 0)
+        {
+          uip_setnetmask("eth0", &ds.netmask);
+        }
+
+      if (ds.default_router.s_addr != 0)
+        {
+          uip_setdraddr("eth0", &ds.default_router);
+        }
+
+      if (ds.dnsaddr.s_addr != 0)
+        {
+          resolv_conf(&ds.dnsaddr);
+        }
+
+      dhcpc_close(handle);
+      printf("IP: %s\n", inet_ntoa(ds.ipaddr));
     }
 #endif
-#endif /* CONFIG_NSH_BUILTIN_APPS */
 
   if (discover_start() < 0)
     {
diff --git a/apps/netutils/discover/Kconfig b/apps/netutils/discover/Kconfig
index 336550511..e1fc0d4e0 100644
--- a/apps/netutils/discover/Kconfig
+++ b/apps/netutils/discover/Kconfig
@@ -7,32 +7,33 @@ config NETUTILS_DISCOVER
 	bool "Network Discovery Utility"
 	default n
 	depends on NET_UDP
+	select NETUTILS_UIPLIB
 	---help---
 		Tool for discovering devices on the local network per UDP broadcast.
 
 if NETUTILS_DISCOVER
 
-DISCOVER_STACK_SIZE
+config DISCOVER_STACK_SIZE
 	int "Discover Daemon Stack Size"
 	default 1024
 
-DISCOVER_PRIORITY
+config DISCOVER_PRIORITY
 	int "Discover Daemon Priority"
 	default 50
 
-DISCOVER_PORT
+config DISCOVER_PORT
 	int "Discover Daemon Port Number"
 	default 96
 
-DISCOVER_INTERFACE
-	int "Network Interface Name"
+config DISCOVER_INTERFACE
+	string "Network Interface Name"
 	default "eth0"
 
-DISCOVER_DEVICE_CLASS
+config DISCOVER_DEVICE_CLASS
 	hex "Network Discovery Class"
 	default 0xff
 
-CONFIG_DISCOVER_DESCR
+config CONFIG_DISCOVER_DESCR
 	string "Discoverer Description"
 	default "NuttX"
 
diff --git a/nuttx/ChangeLog b/nuttx/ChangeLog
index f69cc8d06..68f0933dd 100644
--- a/nuttx/ChangeLog
+++ b/nuttx/ChangeLog
@@ -3331,3 +3331,5 @@
 	* confgs/fire-stm32v2: The board port is basically functional.
 	  Not all features have been verified.  The ENC28J60 network
 	  is not yet functional.
+	* configs/stm3240g-eval/discover:  A configuration for testing
+	  the UDP discovery utility.  Contributed by Max Holtzberg.
\ No newline at end of file
diff --git a/nuttx/configs/stm3240g-eval/README.txt b/nuttx/configs/stm3240g-eval/README.txt
index 151811189..e0238f4de 100755
--- a/nuttx/configs/stm3240g-eval/README.txt
+++ b/nuttx/configs/stm3240g-eval/README.txt
@@ -880,6 +880,28 @@ Where <subdir> is one of the following:
 
     CONFIG_STM32_CODESOURCERYW=y  : CodeSourcery under Windows
 
+  discover:
+  --------
+    This configuration exercises netutils/discover utility using
+    apps/exmaples/discover.  This example initializes and starts the UDP
+    discover daemon. This daemon is useful for discovering devices in
+    local networks, especially with DHCP configured devices.  It listens
+    for UDP broadcasts which also can include a device class so that
+    groups of devices can be discovered. It is also possible to address all
+    classes with a kind of broadcast discover.
+
+    Configuration settings that you may need to change for your
+    environment:
+
+      CONFIG_STM32_CODESOURCERYL=y    - CodeSourcery for Linux
+      CONFIG_EXAMPLE_DISCOVER_DHCPC=y - DHCP Client
+      CONFIG_EXAMPLE_DISCOVER_IPADDR  - (not defined)
+      CONFIG_EXAMPLE_DISCOVER_DRIPADDR - Router IP address
+
+    NOTE:  This configuration uses to the mconf configuration tool to control
+    the configuration.  See the section entitled "NuttX Configuration Tool"
+    in the top-level README.txt file.
+
   nettest:
   -------
 
diff --git a/nuttx/configs/stm3240g-eval/discover/Make.defs b/nuttx/configs/stm3240g-eval/discover/Make.defs
new file mode 100644
index 000000000..5509a14f4
--- /dev/null
+++ b/nuttx/configs/stm3240g-eval/discover/Make.defs
@@ -0,0 +1,198 @@
+############################################################################
+# configs/stm3240g-eval/discover/Make.defs
+#
+#   Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# 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
+include ${TOPDIR}/tools/Config.mk
+
+# Setup for the selected toolchain
+
+ifeq ($(CONFIG_STM32_CODESOURCERYW),y)
+  # CodeSourcery under Windows
+  CROSSDEV = arm-none-eabi-
+  ARCROSSDEV = arm-none-eabi-
+  WINTOOL = y
+  ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
+endif
+ifeq ($(CONFIG_STM32_CODESOURCERYL),y)
+  # CodeSourcery under Linux
+  CROSSDEV = arm-none-eabi-
+  ARCROSSDEV = arm-none-eabi-
+  ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
+  MAXOPTIMIZATION = -O2
+endif
+ifeq ($(CONFIG_STM32_ATOLLIC_LITE),y)
+  # Atollic toolchain under Windows
+  CROSSDEV = arm-atollic-eabi-
+  ARCROSSDEV =
+  WINTOOL = y
+ifeq ($(CONFIG_ARCH_FPU),y)
+  ARCHCPUFLAGS = -mcpu=cortex-m4 -mthumb -march=armv7e-m -mfpu=fpv4-sp-d16 -mfloat-abi=hard
+else
+  ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
+endif
+endif
+ifeq ($(CONFIG_STM32_ATOLLIC_PRO),y)
+  # Atollic toolchain under Windows
+  CROSSDEV = arm-atollic-eabi-
+  ARCROSSDEV = arm-atollic-eabi-
+  WINTOOL = y
+ifeq ($(CONFIG_ARCH_FPU),y)
+  ARCHCPUFLAGS = -mcpu=cortex-m4 -mthumb -march=armv7e-m -mfpu=fpv4-sp-d16 -mfloat-abi=hard
+else
+  ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
+endif
+endif
+ifeq ($(CONFIG_STM32_DEVKITARM),y)
+  # devkitARM under Windows
+  CROSSDEV = arm-eabi-
+  ARCROSSDEV = arm-eabi-
+  WINTOOL = y
+  ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
+endif
+ifeq ($(CONFIG_STM32_RAISONANCE),y)
+  # Raisonance RIDE7 under Windows
+  CROSSDEV = arm-none-eabi-
+  ARCROSSDEV = arm-none-eabi-
+  WINTOOL = y
+  ARCHCPUFLAGS = -mcpu=cortex-m3 -mthumb -mfloat-abi=soft
+endif
+ifeq ($(CONFIG_STM32_BUILDROOT),y)
+  # NuttX buildroot under Linux or Cygwin
+  CROSSDEV = arm-elf-
+  ARCROSSDEV = arm-elf-
+  ARCHCPUFLAGS = -mtune=cortex-m3 -march=armv7-m -mfloat-abi=soft
+  MAXOPTIMIZATION = -Os
+endif
+
+LDSCRIPT = ld.script
+
+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)/scripts/$(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/$(CONFIG_ARCH_BOARD)/scripts/$(LDSCRIPT)
+endif
+
+CC = $(CROSSDEV)gcc
+CXX = $(CROSSDEV)g++
+CPP = $(CROSSDEV)gcc -E
+LD = $(CROSSDEV)ld
+AR = $(ARCROSSDEV)ar rcs
+NM = $(ARCROSSDEV)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 -fno-rtti
+ARCHWARNINGS = -Wall -Wstrict-prototypes -Wshadow
+ARCHWARNINGSXX = -Wall -Wshadow
+ARCHDEFINES =
+ARCHPICFLAGS = -fpic -msingle-pic-base -mpic-register=r10
+
+CFLAGS = $(ARCHCFLAGS) $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
+CPICFLAGS = $(ARCHPICFLAGS) $(CFLAGS)
+CXXFLAGS = $(ARCHCXXFLAGS) $(ARCHWARNINGSXX) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHXXINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES) -pipe
+CXXPICFLAGS = $(ARCHPICFLAGS) $(CXXFLAGS)
+CPPFLAGS = $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRADEFINES)
+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/stm3240g-eval/discover/defconfig b/nuttx/configs/stm3240g-eval/discover/defconfig
new file mode 100644
index 000000000..81a5b3c91
--- /dev/null
+++ b/nuttx/configs/stm3240g-eval/discover/defconfig
@@ -0,0 +1,866 @@
+#
+# Automatically generated file; DO NOT EDIT.
+# Nuttx/ Configuration
+#
+CONFIG_NUTTX_NEWCONFIG=y
+
+#
+# Build Setup
+#
+# CONFIG_EXPERIMENTAL is not set
+
+#
+# Build Configuration
+#
+# CONFIG_APPS_DIR="../apps"
+# CONFIG_BUILD_2PASS is not set
+
+#
+# Binary Output Formats
+#
+# CONFIG_RRLOAD_BINARY is not set
+# CONFIG_INTELHEX_BINARY is not set
+# CONFIG_MOTOROLA_SREC is not set
+CONFIG_RAW_BINARY=y
+
+#
+# Customize Header Files
+#
+# CONFIG_ARCH_STDBOOL_H is not set
+# CONFIG_ARCH_MATH_H is not set
+# CONFIG_ARCH_STDARG_H is not set
+
+#
+# Debug Options
+#
+CONFIG_DEBUG=y
+# CONFIG_DEBUG_VERBOSE is not set
+# CONFIG_DEBUG_ENABLE is not set
+# CONFIG_DEBUG_SCHED is not set
+# CONFIG_DEBUG_MM is not set
+CONFIG_DEBUG_NET=y
+# CONFIG_DEBUG_USB is not set
+# CONFIG_DEBUG_FS is not set
+# CONFIG_DEBUG_LIB is not set
+# CONFIG_DEBUG_BINFMT is not set
+# CONFIG_DEBUG_GRAPHICS is not set
+# CONFIG_DEBUG_I2C is not set
+# CONFIG_DEBUG_SPI is not set
+# CONFIG_DEBUG_WATCHDOG is not set
+# CONFIG_DEBUG_SYMBOLS is not set
+
+#
+# System Type
+#
+# CONFIG_ARCH_8051 is not set
+CONFIG_ARCH_ARM=y
+# CONFIG_ARCH_AVR is not set
+# CONFIG_ARCH_HC is not set
+# CONFIG_ARCH_MIPS is not set
+# CONFIG_ARCH_RGMP is not set
+# CONFIG_ARCH_SH is not set
+# CONFIG_ARCH_SIM is not set
+# CONFIG_ARCH_X86 is not set
+# CONFIG_ARCH_Z16 is not set
+# CONFIG_ARCH_Z80 is not set
+CONFIG_ARCH="arm"
+# CONFIG_ARCH_CHIP_C5471 is not set
+# CONFIG_ARCH_CHIP_CALYPSO is not set
+# CONFIG_ARCH_CHIP_DM320 is not set
+# CONFIG_ARCH_CHIP_IMX is not set
+# CONFIG_ARCH_CHIP_KINETIS is not set
+# CONFIG_ARCH_CHIP_LM3S is not set
+# CONFIG_ARCH_CHIP_LPC17XX is not set
+# CONFIG_ARCH_CHIP_LPC214X is not set
+# CONFIG_ARCH_CHIP_LPC2378 is not set
+# CONFIG_ARCH_CHIP_LPC31XX is not set
+# CONFIG_ARCH_CHIP_LPC43XX is not set
+# CONFIG_ARCH_CHIP_SAM3U is not set
+CONFIG_ARCH_CHIP_STM32=y
+# CONFIG_ARCH_CHIP_STR71X is not set
+CONFIG_ARCH_CORTEXM4=y
+CONFIG_ARCH_FAMILY="armv7-m"
+CONFIG_ARCH_CHIP="stm32"
+# CONFIG_ARCH_FPU is not set
+CONFIG_ARCH_HAVE_MPU=y
+# CONFIG_ARMV7M_MPU is not set
+CONFIG_ARCH_IRQPRIO=y
+CONFIG_BOARD_LOOPSPERMSEC=16717
+# CONFIG_ARCH_CALIBRATION is not set
+# CONFIG_SERIAL_TERMIOS is not set
+# CONFIG_NET_MULTICAST is not set
+
+#
+# STM32 Configuration Options
+#
+# CONFIG_ARCH_CHIP_STM32F100C8 is not set
+# CONFIG_ARCH_CHIP_STM32F100CB is not set
+# CONFIG_ARCH_CHIP_STM32F100R8 is not set
+# CONFIG_ARCH_CHIP_STM32F100RB is not set
+# CONFIG_ARCH_CHIP_STM32F100V8 is not set
+# CONFIG_ARCH_CHIP_STM32F100VB is not set
+# CONFIG_ARCH_CHIP_STM32F103RET6 is not set
+# CONFIG_ARCH_CHIP_STM32F103VCT6 is not set
+# CONFIG_ARCH_CHIP_STM32F103VET6 is not set
+# CONFIG_ARCH_CHIP_STM32F103ZET6 is not set
+# CONFIG_ARCH_CHIP_STM32F105VBT7 is not set
+# CONFIG_ARCH_CHIP_STM32F107VC is not set
+# CONFIG_ARCH_CHIP_STM32F207IG is not set
+# CONFIG_ARCH_CHIP_STM32F405RG is not set
+# CONFIG_ARCH_CHIP_STM32F405VG is not set
+# CONFIG_ARCH_CHIP_STM32F405ZG is not set
+# CONFIG_ARCH_CHIP_STM32F407VE is not set
+# CONFIG_ARCH_CHIP_STM32F407VG is not set
+# CONFIG_ARCH_CHIP_STM32F407ZE is not set
+# CONFIG_ARCH_CHIP_STM32F407ZG is not set
+# CONFIG_ARCH_CHIP_STM32F407IE is not set
+CONFIG_ARCH_CHIP_STM32F407IG=y
+CONFIG_STM32_STM32F40XX=y
+# CONFIG_STM32_CODESOURCERYW is not set
+CONFIG_STM32_CODESOURCERYL=y
+# CONFIG_STM32_ATOLLIC_LITE is not set
+# CONFIG_STM32_ATOLLIC_PRO is not set
+# CONFIG_STM32_DEVKITARM is not set
+# CONFIG_STM32_RAISONANCE is not set
+# CONFIG_STM32_BUILDROOT is not set
+# CONFIG_STM32_DFU is not set
+
+#
+# STM32 Peripheral Support
+#
+# CONFIG_STM32_ADC1 is not set
+# CONFIG_STM32_ADC2 is not set
+# CONFIG_STM32_ADC3 is not set
+# CONFIG_STM32_CRC is not set
+# CONFIG_STM32_DMA1 is not set
+# CONFIG_STM32_DMA2 is not set
+# CONFIG_STM32_BKPSRAM is not set
+# CONFIG_STM32_CAN1 is not set
+# CONFIG_STM32_CAN2 is not set
+# CONFIG_STM32_CCMDATARAM is not set
+# CONFIG_STM32_CRYP is not set
+# CONFIG_STM32_DAC1 is not set
+# CONFIG_STM32_DAC2 is not set
+# CONFIG_STM32_DCMI is not set
+CONFIG_STM32_ETHMAC=y
+# CONFIG_STM32_FSMC is not set
+# CONFIG_STM32_HASH is not set
+CONFIG_STM32_I2C1=y
+# CONFIG_STM32_I2C2 is not set
+# CONFIG_STM32_I2C3 is not set
+# CONFIG_STM32_IWDG is not set
+# CONFIG_STM32_OTGFS is not set
+# CONFIG_STM32_OTGHS is not set
+CONFIG_STM32_PWR=y
+# CONFIG_STM32_RNG is not set
+# CONFIG_STM32_SDIO is not set
+# CONFIG_STM32_SPI1 is not set
+# CONFIG_STM32_SPI2 is not set
+# CONFIG_STM32_SPI3 is not set
+CONFIG_STM32_SYSCFG=y
+# CONFIG_STM32_TIM1 is not set
+# CONFIG_STM32_TIM2 is not set
+# CONFIG_STM32_TIM3 is not set
+# CONFIG_STM32_TIM4 is not set
+# CONFIG_STM32_TIM5 is not set
+# CONFIG_STM32_TIM6 is not set
+# CONFIG_STM32_TIM7 is not set
+# CONFIG_STM32_TIM8 is not set
+# CONFIG_STM32_TIM9 is not set
+# CONFIG_STM32_TIM10 is not set
+# CONFIG_STM32_TIM11 is not set
+# CONFIG_STM32_TIM12 is not set
+# CONFIG_STM32_TIM13 is not set
+# CONFIG_STM32_TIM14 is not set
+# CONFIG_STM32_USART1 is not set
+# CONFIG_STM32_USART2 is not set
+CONFIG_STM32_USART3=y
+# CONFIG_STM32_UART4 is not set
+# CONFIG_STM32_UART5 is not set
+# CONFIG_STM32_USART6 is not set
+# CONFIG_STM32_WWDG is not set
+
+#
+# Alternate Pin Mapping
+#
+# CONFIG_STM32_JTAG_DISABLE is not set
+CONFIG_STM32_JTAG_FULL_ENABLE=y
+# CONFIG_STM32_JTAG_NOJNTRST_ENABLE is not set
+# CONFIG_STM32_JTAG_SW_ENABLE is not set
+# CONFIG_STM32_FORCEPOWER is not set
+# CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG is not set
+# CONFIG_STM32_CCMEXCLUDE is not set
+
+#
+# Ethernet MAC configuration
+#
+CONFIG_STM32_PHYADDR=1
+CONFIG_STM32_MII=y
+CONFIG_STM32_MII_MCO1=y
+# CONFIG_STM32_MII_MCO2 is not set
+CONFIG_STM32_AUTONEG=y
+CONFIG_STM32_PHYSR=16
+CONFIG_STM32_PHYSR_SPEED=0x0002
+CONFIG_STM32_PHYSR_100MBPS=0x0000
+CONFIG_STM32_PHYSR_MODE=0x0004
+CONFIG_STM32_PHYSR_FULLDUPLEX=0x0004
+# CONFIG_STM32_ETH_PTP is not set
+
+#
+# USB Host Configuration
+#
+
+#
+# Architecture Options
+#
+# CONFIG_ARCH_NOINTC is not set
+# CONFIG_ARCH_DMA is not set
+CONFIG_ARCH_STACKDUMP=y
+
+#
+# Board Settings
+#
+CONFIG_DRAM_START=0x20000000
+CONFIG_DRAM_SIZE=196608
+CONFIG_ARCH_HAVE_INTERRUPTSTACK=y
+# CONFIG_ARCH_INTERRUPTSTACK is not set
+
+#
+# Boot options
+#
+# CONFIG_BOOT_RUNFROMEXTSRAM is not set
+CONFIG_BOOT_RUNFROMFLASH=y
+# CONFIG_BOOT_RUNFROMISRAM is not set
+# CONFIG_BOOT_RUNFROMSDRAM is not set
+# CONFIG_BOOT_COPYTORAM is not set
+
+#
+# Board Selection
+#
+CONFIG_ARCH_BOARD_STM3240G_EVAL=y
+# CONFIG_ARCH_BOARD_CUSTOM is not set
+CONFIG_ARCH_BOARD="stm3240g-eval"
+
+#
+# Common Board Options
+#
+CONFIG_ARCH_HAVE_LEDS=y
+CONFIG_ARCH_LEDS=y
+CONFIG_ARCH_HAVE_BUTTONS=y
+# CONFIG_ARCH_BUTTONS is not set
+CONFIG_ARCH_HAVE_IRQBUTTONS=y
+
+#
+# Board-Specific Options
+#
+
+#
+# RTOS Features
+#
+CONFIG_MSEC_PER_TICK=10
+CONFIG_RR_INTERVAL=200
+# CONFIG_SCHED_INSTRUMENTATION is not set
+CONFIG_TASK_NAME_SIZE=0
+# CONFIG_JULIAN_TIME is not set
+CONFIG_START_YEAR=2011
+CONFIG_START_MONTH=12
+CONFIG_START_DAY=6
+CONFIG_DEV_CONSOLE=y
+# CONFIG_DEV_LOWCONSOLE is not set
+# CONFIG_MUTEX_TYPES is not set
+# CONFIG_PRIORITY_INHERITANCE is not set
+# CONFIG_FDCLONE_DISABLE is not set
+# CONFIG_FDCLONE_STDIO is not set
+CONFIG_SDCLONE_DISABLE=y
+# CONFIG_SCHED_WORKQUEUE is not set
+CONFIG_SCHED_WAITPID=y
+# CONFIG_SCHED_ATEXIT is not set
+# CONFIG_SCHED_ONEXIT is not set
+CONFIG_USER_ENTRYPOINT="discover_main"
+CONFIG_DISABLE_OS_API=y
+# CONFIG_DISABLE_CLOCK is not set
+# CONFIG_DISABLE_POSIX_TIMERS is not set
+# CONFIG_DISABLE_PTHREAD is not set
+# CONFIG_DISABLE_SIGNALS is not set
+# CONFIG_DISABLE_MQUEUE is not set
+# CONFIG_DISABLE_MOUNTPOINT is not set
+# CONFIG_DISABLE_ENVIRON is not set
+CONFIG_DISABLE_POLL=y
+
+#
+# Sizes of configurable things (0 disables)
+#
+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_PREALLOC_MQ_MSGS=4
+CONFIG_MQ_MAXMSGSIZE=32
+CONFIG_MAX_WDOGPARMS=2
+CONFIG_PREALLOC_WDOGS=8
+CONFIG_PREALLOC_TIMERS=4
+
+#
+# Stack and heap information
+#
+# CONFIG_CUSTOM_STACK is not set
+CONFIG_IDLETHREAD_STACKSIZE=1024
+CONFIG_USERMAIN_STACKSIZE=2048
+CONFIG_PTHREAD_STACK_MIN=256
+CONFIG_PTHREAD_STACK_DEFAULT=2048
+
+#
+# Device Drivers
+#
+CONFIG_DEV_NULL=y
+# CONFIG_DEV_ZERO is not set
+# CONFIG_LOOP is not set
+# CONFIG_RAMDISK is not set
+# CONFIG_CAN is not set
+# CONFIG_PWM is not set
+CONFIG_I2C=y
+# CONFIG_I2C_SLAVE is not set
+CONFIG_I2C_TRANSFER=y
+# CONFIG_I2C_WRITEREAD is not set
+CONFIG_I2C_POLLED=y
+# CONFIG_I2C_TRACE is not set
+# CONFIG_SPI is not set
+# CONFIG_RTC is not set
+# CONFIG_WATCHDOG is not set
+# CONFIG_ANALOG is not set
+# CONFIG_BCH is not set
+# CONFIG_INPUT is not set
+# CONFIG_LCD is not set
+# CONFIG_MMCSD is not set
+# CONFIG_MTD is not set
+# CONFIG_NETDEVICES is not set
+# CONFIG_NET_SLIP is not set
+# CONFIG_PIPES is not set
+# CONFIG_PM is not set
+# CONFIG_POWER is not set
+# CONFIG_SENSORS is not set
+# CONFIG_SERCOMM_CONSOLE is not set
+CONFIG_SERIAL=y
+# CONFIG_LOWLEVEL_CONSOLE is not set
+# CONFIG_16550_UART is not set
+CONFIG_ARCH_HAVE_USART3=y
+CONFIG_MCU_SERIAL=y
+CONFIG_STANDARD_SERIAL=y
+CONFIG_USART3_SERIAL_CONSOLE=y
+# CONFIG_NO_SERIAL_CONSOLE is not set
+
+#
+# USART3 Configuration
+#
+CONFIG_USART3_RXBUFSIZE=128
+CONFIG_USART3_TXBUFSIZE=128
+CONFIG_USART3_BAUD=115200
+CONFIG_USART3_BITS=8
+CONFIG_USART3_PARITY=0
+CONFIG_USART3_2STOP=0
+# CONFIG_USBDEV is not set
+# CONFIG_USBHOST is not set
+# CONFIG_WIRELESS is not set
+
+#
+# System Logging Device Options
+#
+
+#
+# System Logging
+#
+# CONFIG_RAMLOG is not set
+
+#
+# Networking Support
+#
+CONFIG_NET=y
+# CONFIG_NET_NOINTS is not set
+CONFIG_NET_MULTIBUFFER=y
+# CONFIG_NET_IPv6 is not set
+CONFIG_NSOCKET_DESCRIPTORS=10
+CONFIG_NET_NACTIVESOCKETS=16
+CONFIG_NET_SOCKOPTS=y
+CONFIG_NET_BUFSIZE=650
+# CONFIG_NET_TCPURGDATA is not set
+CONFIG_NET_TCP=y
+CONFIG_NET_TCP_CONNS=40
+CONFIG_NET_MAX_LISTENPORTS=40
+CONFIG_NET_TCP_READAHEAD_BUFSIZE=562
+CONFIG_NET_NTCP_READAHEAD_BUFFERS=16
+CONFIG_NET_TCP_RECVDELAY=0
+CONFIG_NET_TCPBACKLOG=y
+CONFIG_NET_UDP=y
+CONFIG_NET_UDP_CHECKSUMS=y
+CONFIG_NET_UDP_CONNS=8
+CONFIG_NET_BROADCAST=y
+CONFIG_NET_ICMP=y
+CONFIG_NET_ICMP_PING=y
+# CONFIG_NET_PINGADDRCONF is not set
+# CONFIG_NET_IGMP is not set
+CONFIG_NET_STATISTICS=y
+CONFIG_NET_RECEIVE_WINDOW=562
+CONFIG_NET_ARPTAB_SIZE=16
+CONFIG_NET_ARP_IPIN=y
+
+#
+# File Systems
+#
+
+#
+# File system configuration
+#
+CONFIG_FS_FAT=y
+CONFIG_FAT_LCNAMES=y
+CONFIG_FAT_LFN=y
+CONFIG_FAT_MAXFNAME=32
+# CONFIG_FS_FATTIME is not set
+# CONFIG_FAT_DMAMEMORY is not set
+# CONFIG_FS_RAMMAP is not set
+# CONFIG_NFS is not set
+# CONFIG_FS_NXFFS is not set
+# CONFIG_FS_ROMFS is not set
+
+#
+# System Logging
+#
+# CONFIG_SYSLOG is not set
+
+#
+# Memory Management
+#
+# CONFIG_MM_SMALL is not set
+CONFIG_MM_REGIONS=2
+# CONFIG_GRAN is not set
+
+#
+# Library Routines
+#
+CONFIG_STDIO_BUFFER_SIZE=256
+CONFIG_STDIO_LINEBUFFER=y
+CONFIG_NUNGET_CHARS=2
+CONFIG_LIB_HOMEDIR="/"
+# CONFIG_HAVE_LIBM is not set
+# CONFIG_NOPRINTF_FIELDWIDTH is not set
+# CONFIG_LIBC_FLOATINGPOINT is not set
+# CONFIG_EOL_IS_CR is not set
+# CONFIG_EOL_IS_LF is not set
+# CONFIG_EOL_IS_BOTH_CRLF is not set
+CONFIG_EOL_IS_EITHER_CRLF=y
+# CONFIG_LIBC_STRERROR is not set
+# CONFIG_LIBC_PERROR_STDOUT is not set
+CONFIG_ARCH_LOWPUTC=y
+CONFIG_LIB_SENDFILE_BUFSIZE=512
+# CONFIG_ARCH_ROMGETC is not set
+# CONFIG_ARCH_OPTIMIZED_FUNCTIONS is not set
+CONFIG_HAVE_CXX=y
+CONFIG_HAVE_CXXINITIALIZE=y
+# CONFIG_CXX_NEWLONG is not set
+
+#
+# Application Configuration
+#
+
+#
+# Named Applications
+#
+# CONFIG_NAMEDAPP is not set
+
+#
+# Examples
+#
+
+#
+# ADC Example
+#
+# CONFIG_EXAMPLES_ADC is not set
+
+#
+# Buttons Example
+#
+# CONFIG_EXAMPLES_BUTTONS is not set
+
+#
+# CAN Example
+#
+# CONFIG_EXAMPLES_CAN is not set
+
+#
+# USB CDC/ACM Class Driver Example
+#
+# CONFIG_EXAMPLES_CDCACM is not set
+
+#
+# USB composite Class Driver Example
+#
+# CONFIG_EXAMPLES_COMPOSITE is not set
+
+#
+# DHCP Server Example
+#
+# CONFIG_EXAMPLES_DHCPD is not set
+
+#
+# FTP Client Example
+#
+# CONFIG_EXAMPLES_FTPC is not set
+
+#
+# FTP Server Example
+#
+# CONFIG_EXAMPLES_FTPD is not set
+
+#
+# "Hello, World!" Example
+#
+# CONFIG_EXAMPLES_HELLO is not set
+
+#
+# "Hello, World!" C++ Example
+#
+# CONFIG_EXAMPLES_HELLOXX is not set
+
+#
+# USB HID Keyboard Example
+#
+# CONFIG_EXAMPLES_HIDKBD is not set
+
+#
+# IGMP Example
+#
+# CONFIG_EXAMPLES_IGMP is not set
+
+#
+# LCD Read/Write Example
+#
+# CONFIG_EXAMPLES_LCDRW is not set
+
+#
+# Memory Management Example
+#
+# CONFIG_EXAMPLES_MM is not set
+
+#
+# File System Mount Example
+#
+# CONFIG_EXAMPLES_MOUNT is not set
+
+#
+# FreeModBus Example
+#
+# CONFIG_EXAMPLES_MODBUS is not set
+
+#
+# Network Test Example
+#
+# CONFIG_EXAMPLES_NETTEST is not set
+
+#
+# NuttShell (NSH) Example
+#
+# CONFIG_EXAMPLES_NSH is not set
+
+#
+# NULL Example
+#
+# CONFIG_EXAMPLES_NULL is not set
+
+#
+# NX Graphics Example
+#
+# CONFIG_EXAMPLES_NX is not set
+
+#
+# NxConsole Example
+#
+# CONFIG_EXAMPLES_NXCONSOLE is not set
+
+#
+# NXFFS File System Example
+#
+# CONFIG_EXAMPLES_NXFFS is not set
+
+#
+# NXFLAT Example
+#
+# CONFIG_EXAMPLES_NXFLAT is not set
+
+#
+# NX Graphics "Hello, World!" Example
+#
+# CONFIG_EXAMPLES_NXHELLO is not set
+
+#
+# NX Graphics image Example
+#
+# CONFIG_EXAMPLES_NXIMAGE is not set
+
+#
+# NX Graphics lines Example
+#
+# CONFIG_EXAMPLES_NXLINES is not set
+
+#
+# NX Graphics Text Example
+#
+# CONFIG_EXAMPLES_NXTEXT is not set
+
+#
+# OS Test Example
+#
+# CONFIG_EXAMPLES_OSTEST is not set
+
+#
+# Pascal "Hello, World!"example
+#
+# CONFIG_EXAMPLES_PASHELLO is not set
+
+#
+# Pipe Example
+#
+# CONFIG_EXAMPLES_PIPE is not set
+
+#
+# Poll Example
+#
+# CONFIG_EXAMPLES_POLL is not set
+
+#
+# Pulse Width Modulation (PWM) Example
+#
+
+#
+# Quadrature Encoder Example
+#
+# CONFIG_EXAMPLES_QENCODER is not set
+
+#
+# RGMP Example
+#
+# CONFIG_EXAMPLES_RGMP is not set
+
+#
+# ROMFS Example
+#
+# CONFIG_EXAMPLES_ROMFS is not set
+
+#
+# sendmail Example
+#
+# CONFIG_EXAMPLES_SENDMAIL is not set
+
+#
+# Serial Loopback Example
+#
+# CONFIG_EXAMPLES_SERLOOP is not set
+
+#
+# Telnet Daemon Example
+#
+# CONFIG_EXAMPLES_TELNETD is not set
+
+#
+# THTTPD Web Server Example
+#
+# CONFIG_EXAMPLES_THTTPD is not set
+
+#
+# TIFF Generation Example
+#
+# CONFIG_EXAMPLES_TIFF is not set
+
+#
+# Touchscreen Example
+#
+# CONFIG_EXAMPLES_TOUCHSCREEN is not set
+
+#
+# UDP Example
+#
+# CONFIG_EXAMPLES_UDP is not set
+
+#
+# UDP Discovery Daemon Example
+#
+CONFIG_EXAMPLE_DISCOVER=y
+CONFIG_EXAMPLE_DISCOVER_DHCPC=y
+CONFIG_EXAMPLE_DISCOVER_NOMAC=y
+CONFIG_EXAMPLE_DISCOVER_DRIPADDR=0xc0a80201
+CONFIG_EXAMPLE_DISCOVER_NETMASK=0xffffff00
+
+#
+# uIP Web Server Example
+#
+# CONFIG_EXAMPLES_UIP is not set
+
+#
+# USB Serial Test Example
+#
+# CONFIG_EXAMPLES_USBSERIAL is not set
+
+#
+# USB Mass Storage Class Example
+#
+# CONFIG_EXAMPLES_USBMSC is not set
+
+#
+# USB Serial Terminal Example
+#
+# CONFIG_EXAMPLES_USBTERM is not set
+
+#
+# Watchdog timer Example
+#
+# CONFIG_EXAMPLES_WATCHDOG is not set
+
+#
+# wget Example
+#
+# CONFIG_EXAMPLES_WGET is not set
+
+#
+# WLAN Example
+#
+# CONFIG_EXAMPLES_WLAN is not set
+
+#
+# Interpreters
+#
+
+#
+# Interpreters
+#
+# CONFIG_FICL is not set
+# CONFIG_PCODE is not set
+
+#
+# Network Utilities
+#
+
+#
+# Networking Utilities
+#
+
+#
+# DHCP client
+#
+CONFIG_NETUTILS_DHCPC=y
+
+#
+# DHCP server
+#
+# CONFIG_NETUTILS_DHCPD is not set
+
+#
+# FTP client
+#
+# CONFIG_NETUTILS_FTPC is not set
+
+#
+# FTP server
+#
+# CONFIG_NETUTILS_FTPD is not set
+
+#
+# Name resolution
+#
+CONFIG_NETUTILS_RESOLV=y
+CONFIG_NET_RESOLV_ENTRIES=4
+
+#
+# SMTP
+#
+# CONFIG_NETUTILS_SMTP is not set
+
+#
+# TFTP client
+#
+# CONFIG_NETUTILS_TELNETD is not set
+
+#
+# TFTP client
+#
+# CONFIG_NETUTILS_TFTPC is not set
+
+#
+# THTTPD web server
+#
+# CONFIG_NETUTILS_THTTPD is not set
+
+#
+# uIP support library
+#
+CONFIG_NETUTILS_UIPLIB=y
+
+#
+# uIP web client
+#
+# CONFIG_NETUTILS_WEBCLIENT is not set
+
+#
+# uIP web server
+#
+# CONFIG_NETUTILS_WEBSERVER is not set
+
+#
+# UDP Discovery Utility
+#
+CONFIG_NETUTILS_DISCOVER=y
+CONFIG_DISCOVER_STACK_SIZE=1024
+CONFIG_DISCOVER_PRIORITY=50
+CONFIG_DISCOVER_PORT=96
+CONFIG_DISCOVER_INTERFACE="eth0"
+CONFIG_DISCOVER_DEVICE_CLASS=0xff
+CONFIG_CONFIG_DISCOVER_DESCR="STM3240G-EVAL"
+
+#
+# ModBus
+#
+
+#
+# FreeModbus
+#
+# CONFIG_MODBUS is not set
+
+#
+# NSH Library
+#
+# CONFIG_NSH_LIBRARY is not set
+
+#
+# System NSH Add-Ons
+#
+
+#
+# Custom free memory command
+#
+# CONFIG_SYSTEM_FREE is not set
+
+#
+# I2C tool
+#
+# CONFIG_SYSTEM_I2CTOOL is not set
+
+#
+# FLASH Program Installation
+#
+# CONFIG_SYSTEM_INSTALL is not set
+
+#
+# readline() support
+#
+# CONFIG_SYSTEM_READLINE is not set
+
+#
+# VSN board Add-Ons
+#
+
+#
+# VSN board add-ons
+#
+# CONFIG_VSN_POWEROFF is not set
+# CONFIG_VSN_RAMTRON is not set
+# CONFIG_VSN_SDCARD is not set
+# CONFIG_VSN_SYSINFO is not set
diff --git a/nuttx/configs/stm3240g-eval/discover/setenv.sh b/nuttx/configs/stm3240g-eval/discover/setenv.sh
new file mode 100755
index 000000000..ce5f031b1
--- /dev/null
+++ b/nuttx/configs/stm3240g-eval/discover/setenv.sh
@@ -0,0 +1,75 @@
+#!/bin/bash
+# configs/stm3240g-eval/discover/setenv.sh
+#
+#   Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# 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 [ "$_" = "$0" ] ; then
+  echo "You must source this script, not run it!" 1>&2
+  exit 1
+fi
+
+WD=`pwd`
+if [ ! -x "setenv.sh" ]; then
+  echo "This script must be executed from the top-level NuttX build directory"
+  exit 1
+fi
+
+if [ -z "${PATH_ORIG}" ]; then
+  export PATH_ORIG="${PATH}"
+fi
+
+# This the Cygwin path to the location where I installed the RIDE
+# toolchain under windows.  You will also have to edit this if you install
+# the RIDE toolchain in any other location
+#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/Raisonance/Ride/arm-gcc/bin"
+
+# This the Cygwin path to the location where I installed the CodeSourcery
+# toolchain under windows.  You will also have to edit this if you install
+# the CodeSourcery toolchain in any other location
+export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++ Lite/bin"
+
+# These are the Cygwin paths to the locations where I installed the Atollic
+# toolchain under windows.  You will also have to edit this if you install
+# the Atollic toolchain in any other location.  /usr/bin is added before
+# the Atollic bin path because there is are binaries named gcc.exe and g++.exe
+# at those locations as well.
+#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for ARM Pro 2.3.0/ARMTools/bin"
+#export TOOLCHAIN_BIN="/usr/bin:/cygdrive/c/Program Files (x86)/Atollic/TrueSTUDIO for STMicroelectronics STM32 Lite 2.3.0/ARMTools/bin"
+
+# This the Cygwin path to the location where I build the buildroot
+# toolchain.
+#export TOOLCHAIN_BIN="${WD}/../misc/buildroot/build_arm_nofpu/staging_dir/bin"
+
+# Add the path to the toolchain to the PATH varialble
+export PATH="${TOOLCHAIN_BIN}:/sbin:/usr/sbin:${PATH_ORIG}"
+
+echo "PATH : ${PATH}"
diff --git a/nuttx/tools/README.txt b/nuttx/tools/README.txt
index ae19be273..5d52eaeff 100755
--- a/nuttx/tools/README.txt
+++ b/nuttx/tools/README.txt
@@ -17,6 +17,12 @@ configure.sh
   target board.  See configs/README.txt or Documentation/NuttxPortingGuide.html
   for a description of how to configure NuttX with this script.
 
+discover.py
+
+  Example script for discovering devices in the local network.
+  It is the counter part to apps/netutils/discover
+
+
 mkconfig.c, cfgparser.c, and cfgparser.h
 
   These are Cs file that are used to build mkconfig program.  The mkconfig
diff --git a/nuttx/tools/discover.py b/nuttx/tools/discover.py
new file mode 100755
index 000000000..3279fe871
--- /dev/null
+++ b/nuttx/tools/discover.py
@@ -0,0 +1,98 @@
+#!/usr/bin/env python
+############################################################################
+# tools/indent.sh
+#
+#   Copyright (C) 2012 Max Holtzberg. All rights reserved.
+#   Author: Max Holtzberg <mh@uvc.de>
+#
+# 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.
+#
+############################################################################
+
+import array
+import time
+from socket import *
+
+PORT = 96
+
+DISCOVER_PROTO_ID = 0x99
+DISCOVER_ALL = 0xff         # 0xff means all devices
+DISCOVER_REQUEST = 0x01
+DISCOVER_RESPONSE = 0x02
+DISCOVER_REQUEST_SIZE = 4
+DISCOVER_RESPONSE_SIZE = 35
+
+def check_sum(data):
+    chksum = 0
+    for c in data[:-1]:
+        chksum -= c
+    return (chksum & 0xff) == data[-1]
+
+def send_discover(socket):
+    cmd = array.array('B', [0] * DISCOVER_REQUEST_SIZE)
+    cmd[0] = DISCOVER_PROTO_ID # Tag for identification of the protocol
+    cmd[1] = DISCOVER_REQUEST  # Request command
+    cmd[2] = DISCOVER_ALL
+    chksum = 0
+    for c in cmd[:3]:
+        chksum -= c;
+    cmd[3] = chksum & 0xff
+    
+    socket.sendto(cmd, ('<broadcast>', PORT))
+
+def read_responses(socket):
+    res = []
+    response = array.array('B', [0] * DISCOVER_RESPONSE_SIZE)
+    try:
+        while 1:
+            size, src = socket.recvfrom_into(response)
+            if (size == DISCOVER_RESPONSE_SIZE
+                and response[0] == DISCOVER_PROTO_ID
+                and response[1] == DISCOVER_RESPONSE
+                and check_sum(response)):
+                
+                dev = {}
+                dev['addr'] = src[0]
+                dev['descr'] = response[2:-1].tostring().rstrip('\0')
+                res.append(dev)
+
+    except timeout:
+        return res
+
+if __name__ == '__main__':
+    print 'Sending discover...'
+
+    s = socket(AF_INET, SOCK_DGRAM)
+    s.bind(('0.0.0.0', PORT))
+    s.setsockopt(SOL_SOCKET, SO_BROADCAST, 1)
+    s.settimeout(1.0);
+    send_discover(s)
+    devices = read_responses(s)
+    socket.close(s)
+
+    print devices