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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-12-17 20:07:22 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2011-12-17 20:07:22 +0000 |
commit | 3154078ddbb8a28dc434f7bf42ea2523814bfe91 (patch) | |
tree | ee9a57bf65150b23194d99eecea02ee8af066e44 /nuttx/configs/hymini-stm32v/README.txt | |
parent | 9a958200a692d239f9f67b27ec8ba672ce2188ef (diff) | |
download | px4-nuttx-3154078ddbb8a28dc434f7bf42ea2523814bfe91.tar.gz px4-nuttx-3154078ddbb8a28dc434f7bf42ea2523814bfe91.tar.bz2 px4-nuttx-3154078ddbb8a28dc434f7bf42ea2523814bfe91.zip |
Adds support for the STM32F103VCT6 and for the Hy-Mini STM32v board. Contributed by Laurent Latil
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4197 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/configs/hymini-stm32v/README.txt')
-rwxr-xr-x | nuttx/configs/hymini-stm32v/README.txt | 674 |
1 files changed, 674 insertions, 0 deletions
diff --git a/nuttx/configs/hymini-stm32v/README.txt b/nuttx/configs/hymini-stm32v/README.txt new file mode 100755 index 000000000..016604d88 --- /dev/null +++ b/nuttx/configs/hymini-stm32v/README.txt @@ -0,0 +1,674 @@ +README +====== + +This README discusses issues unique to NuttX configurations for the +HY-MiniSTM32V development board. + +Contents +======== + + - Development Environment + - GNU Toolchain Options + - IDEs + - NuttX buildroot Toolchain + - DFU + - LEDs + - RTC + - HY-Mini 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 no 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/armv7-m, 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 hymini-stm32v/<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 Hy-Mini STM32v board to your computer using a USB + cable. + 3. Start the DFU loader on the Hy-Mini STM32v 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 nuttx.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 HY-MiniSTM32 board provides only two controlable LEDs labeled LED1 and LED2. +Usage of these LEDs is defined in include/board.h and src/up_leds.c. +They are encoded as follows: + + SYMBOL Meaning LED1* LED2 + ------------------- ----------------------- ------- ------- + LED_STARTED NuttX has been started OFF OFF + LED_HEAPALLOCATE Heap has been allocated ON OFF + LED_IRQSENABLED Interrupts enabled OFF ON + LED_STACKCREATED Idle stack created ON OFF + LED_INIRQ In an interrupt** OFF N/C + LED_SIGNAL In a signal handler*** N/C ON + LED_ASSERTION An assertion failed ON ON + LED_PANIC The system has crashed BLINK BLINK + LED_IDLE STM32 is is sleep mode (Optional, not used) + + * If Nuttx starts correctly, normal state is to have LED1 on and LED2 off. + ** LED1 is turned off during interrrupt. +*** LED2 is turned on during signal handler. + +RTC +=== + + The STM32 RTC may configured using the following settings. + + CONFIG_RTC - Enables general support for a hardware RTC. Specific + architectures may require other specific settings. + CONFIG_RTC_HIRES - The typical RTC keeps time to resolution of 1 + second, usually supporting a 32-bit time_t value. In this case, + the RTC is used to "seed" the normal NuttX timer and the + NuttX timer provides for higher resoution time. If CONFIG_RTC_HIRES + is enabled in the NuttX configuration, then the RTC provides higher + resolution time and completely replaces the system timer for purpose of + date and time. + CONFIG_RTC_FREQUENCY - If CONFIG_RTC_HIRES is defined, then the + frequency of the high resolution RTC must be provided. If CONFIG_RTC_HIRES + is not defined, CONFIG_RTC_FREQUENCY is assumed to be one. + CONFIG_RTC_ALARM - Enable if the RTC hardware supports setting of an alarm. + A callback function will be executed when the alarm goes off + + In hi-res mode, the STM32 RTC operates only at 16384Hz. Overflow interrupts + are handled when the 32-bit RTC counter overflows every 3 days and 43 minutes. + A BKP register is incremented on each overflow interrupt creating, effectively, + a 48-bit RTC counter. + + In the lo-res mode, the RTC operates at 1Hz. Overflow interrupts are not handled + (because the next overflow is not expected until the year 2106. + + WARNING: Overflow interrupts are lost whenever the STM32 is powered down. The + overflow interrupt may be lost even if the STM32 is powered down only momentarily. + Therefore hi-res solution is only useful in systems where the power is always on. + +HY-Mini 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_STM32F103VCT6 + + CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG - Enables special STM32 clock + configuration features. + + CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG=n + + CONFIG_ARCH_BOARD - Identifies the configs subdirectory and + hence, the board that supports the particular chip or SoC. + + CONFIG_ARCH_BOARD=hymini-stm32v (for the HY-Mini development board) + + CONFIG_ARCH_BOARD_name - For use in C code + + CONFIG_ARCH_BOARD_HYMINI_STM32V=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=0x0000C000 (48Kb) + + 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 STM32F103V 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 (required for PWM control of LCD backlight) + 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 + + Timer and I2C devices may need to the following to force power to be applied + unconditionally at power up. (Otherwise, the device is powered when it is + initialized). + + CONFIG_STM32_FORCEPOWER + + The Timer3 alternate mapping is required for PWM control of LCD backlight + + CONFIG_STM32_TIM3_PARTIAL_REMAP=y + + Timer devices may be used for different purposes. One special purpose is + to generate modulated outputs for such things as motor control. If CONFIG_STM32_TIMn + is defined (as above) then the following may also be defined to indicate that + the timer is intended to be used for pulsed output modulation, ADC conversion, + or DAC conversion. + + CONFIG_STM32_TIM1_PWM + CONFIG_STM32_TIM2_PWM + CONFIG_STM32_TIM3_PWM + CONFIG_STM32_TIM4_PWM + CONFIG_STM32_TIM5_PWM + CONFIG_STM32_TIM6_PWM + CONFIG_STM32_TIM7_PWM + CONFIG_STM32_TIM8_PWM + + CONFIG_STM32_TIM1_ADC + CONFIG_STM32_TIM2_ADC + CONFIG_STM32_TIM3_ADC + CONFIG_STM32_TIM4_ADC + CONFIG_STM32_TIM5_ADC + CONFIG_STM32_TIM6_ADC + CONFIG_STM32_TIM7_ADC + CONFIG_STM32_TIM8_ADC + + CONFIG_STM32_TIM1_DAC + CONFIG_STM32_TIM2_DAC + CONFIG_STM32_TIM3_DAC + CONFIG_STM32_TIM4_DAC + CONFIG_STM32_TIM5_DAC + CONFIG_STM32_TIM6_DAC + CONFIG_STM32_TIM7_DAC + CONFIG_STM32_TIM8_DAC + + Others alternate pin mappings available: + + 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 + + STM32F103V 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). + + Note: USART1 is connected to a PL2303 serial to USB converter. + So USART1 is available through USB port labeled CN3 on the board. + + 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 + CONFIG_SDIO_WIDTH_D1_ONLY - Select 1-bit transfer mode. Default: + 4-bit transfer mode. + CONFIG_MMCSD_HAVECARDDETECT - Select if SDIO driver card detection + is 100% accurate (it is on the HY-MiniSTM32V) + + + HY-MiniSTM32V LCD Hardware Configuration (SSD1289 controler) + + CONFIG_NX_LCDDRIVER - To be defined to include LCD driver + CONFIG_LCD_LANDSCAPE - Define for 320x240 display "landscape" + support. In this orientation, the HY-MiniSTM32V's + LCD used connector is at the right of the display. + Default is this 320x240 "landscape" orientation + CONFIG_LCD_PORTRAIT - Define for 240x320 display "portrait" + orientation support. In this orientation, the HY-MiniSTM32V's + LCD used connector is at the bottom of the display. Default is + 320x240 "landscape" orientation. + CONFIG_LCD_RPORTRAIT - Define for 240x320 display "reverse + portrait" orientation support. In this orientation, the + HY-MiniSTM32V's LCD used connector is at the top of the display. + Default is 320x240 "landscape" orientation. + CONFIG_LCD_BACKLIGHT - Define to support an adjustable backlight + using timer 3. The granularity of the settings is determined + by CONFIG_LCD_MAXPOWER. Requires CONFIG_STM32_TIM3. + + +Configurations +============== + +Each HY-MiniSTM32V configuration is maintained in a sudirectory and +can be selected as follow: + + cd tools + ./configure.sh hymini-stm32v/<subdir> + cd - + . ./setenv.sh + +Where <subdir> is one of the following: + + buttons: + -------- + + Uses apps/examples/buttons to exercise HY-MiniSTM32V buttons and + button interrupts. + + CONFIG_STM32_CODESOURCERYL=y : CodeSourcery under Linux + + nsh and nsh2: + ------------ + Configure the NuttShell (nsh) located at examples/nsh. + + Differences between the two NSH configurations: + + =========== ======================= ================================ + nsh nsh2 + =========== ======================= ================================ + Toolchain: Codesourcery for Linux Codesourcery for Linux (1) + ----------- ----------------------- -------------------------------- + Loader: ST bootloader ST bootloader + ----------- ----------------------- -------------------------------- + Serial Debug output: USART1 Debug output: USART1 + Console: NSH output: USART1 NSH output: USART1 (3) + ----------- ----------------------- -------------------------------- + microSD Yes Yes + Support + ----------- ----------------------- -------------------------------- + FAT FS CONFIG_FAT_LCNAME=y CONFIG_FAT_LCNAME=y + Config CONFIG_FAT_LFN=n CONFIG_FAT_LFN=y (4) + ----------- ----------------------- -------------------------------- + LCD Driver No Yes + Support + ----------- ----------------------- -------------------------------- + RTC Support No Yes + ----------- ----------------------- -------------------------------- + Support for No Yes + Built-in + Apps + ----------- ----------------------- -------------------------------- + Built-in None apps/examples/nx + Apps apps/examples/nxhello + apps/examples/usbstorage (5) + apps/examples/buttons + apps/examples/nximage + =========== ======================= ================================ + + (1) You will probably need to modify nsh/setenv.sh or nsh2/setenv.sh + to set up the correct PATH variable for whichever toolchain you + may use. + (2) Since DfuSe is assumed, this configuration may only work under + Cygwin without modification. + (3) When any other device other than /dev/console is used for a user + interface, (1) linefeeds (\n) will not be expanded to carriage return + / linefeeds \r\n). You will need to configure your terminal program + to account for this. And (2) input is not automatically echoed so + you will have to turn local echo on. + (4) Microsoft holds several patents related to the design of + long file names in the FAT file system. Please refer to the + details in the top-level COPYING file. Please do not use FAT + long file name unless you are familiar with these patent issues. + (5) When built as an NSH add-on command (CONFIG_EXAMPLES_USBSTRG_BUILTIN=y), + Caution should be used to assure that the SD drive is not in use when + the USB storage device is configured. Specifically, the SD driver + should be unmounted like: + + nsh> mount -t vfat /dev/mmcsd0 /mnt/sdcard # Card is mounted in NSH + ... + nsh> umount /mnd/sdcard # Unmount before connecting USB!!! + nsh> msconn # Connect the USB storage device + ... + nsh> msdis # Disconnect USB storate device + nsh> mount -t vfat /dev/mmcsd0 /mnt/sdcard # Restore the mount + + Failure to do this could result in corruption of the SD card format. + + nx: + --- + An example using the NuttX graphics system (NX). This example + focuses on general window controls, movement, mouse and keyboard + input. + + CONFIG_STM32_CODESOURCERYW=y : CodeSourcery under Windows + CONFIG_LCD_RPORTRAIT=y : 240x320 reverse portrait + + nxlines: + ------ + Another example using the NuttX graphics system (NX). This + example focuses on placing lines on the background in various + orientations. + + CONFIG_STM32_CODESOURCERYL=y : CodeSourcery under Linux + CONFIG_LCD_RPORTRAIT=y : 240x320 reverse portrait + + usbserial: + --------- + This configuration directory exercises the USB serial class + driver at examples/usbserial. See examples/README.txt for + more information. + + CONFIG_STM32_CODESOURCERYL=y : CodeSourcery under Linux + + USB debug output can be enabled as by changing the following + settings in the configuration file: + + -CONFIG_DEBUG=n + -CONFIG_DEBUG_VERBOSE=n + -CONFIG_DEBUG_USB=n + +CONFIG_DEBUG=y + +CONFIG_DEBUG_VERBOSE=y + +CONFIG_DEBUG_USB=y + + -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 + +CONFIG_EXAMPLES_USBSERIAL_TRACEINIT=y + +CONFIG_EXAMPLES_USBSERIAL_TRACECLASS=y + +CONFIG_EXAMPLES_USBSERIAL_TRACETRANSFERS=y + +CONFIG_EXAMPLES_USBSERIAL_TRACECONTROLLER=y + +CONFIG_EXAMPLES_USBSERIAL_TRACEINTERRUPTS=y + + By default, the usbserial example uses the Prolific PL2303 + serial/USB converter emulation. The example can be modified + to use the CDC/ACM serial class by making the following changes + to the configuration file: + + -CONFIG_USBSER=y + +CONFIG_USBSER=n + + -CONFIG_CDCSER=n + +CONFIG_CDCSER=y + + The example can also be converted to use the alternative + USB serial example at apps/examples/usbterm by changing the + following: + + -CONFIGURED_APPS += examples/usbserial + +CONFIGURED_APPS += examples/usbterm + + In either the original appconfig file (before configuring) + or in the final apps/.config file (after configuring). + + usbstorage: + ---------- + This configuration directory exercises the USB mass storage + class driver at examples/usbstorage. See examples/README.txt for + more information. + + CONFIG_STM32_CODESOURCERYL=y : CodeSourcery under Linux + |