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--- manual:demos:stm32f0_discovery_gcc [2016/04/29 16:55]
voorburg created
+++ manual:demos:stm32f0_discovery_gcc [2023/12/04 22:18] (current)
voorburg [Supported firmware update interfaces]
@@ Line 3: / Line 3: @@
 ===== Supported firmware update interfaces =====
-^ UART           ^ CAN             ^ USB          ^ TCP/IP       ^ SD-card      ^
+^ RS232         ^ CAN            ^ USB         ^ TCP/IP      ^ SD-card      ^ Modbus RTU   ^
+| Yes           | No             | No          | No          | No           | No           |
-| Yes            | No              | No           | No           | No          |
+===== Development Environment =====
+{{:manual:demos:stm32f0_discovery.png?200 |}}
-===== Development Environment =====
+This demo is targeted towards the [[http://www.st.com/stm32f0discovery|STM32F0-Discovery]] board, with 64 kB internal Flash EEPROM and 8 kB internal RAM.
+To program the bootloader into the internal flash on the STM32F051 microcontroller, the on-board ST-Link Debugger Interface was used. However, this is not required if you have another means of programming the internal flash.
+To build the demo programs you can use the [[https://developer.arm.com/open-source/gnu-toolchain/gnu-rm|GNU ARM Embedded]] toolchain.
+The [[https://www.olimex.com/Products/Components/Cables/USB-Serial-Cable/USB-Serial-Cable-F/|Olimex USB-Serial-Cable-F]] was used to create a connection between the STM32F051 USART2 serial peripheral and the PC's COM-port. The pin connections are as follows:
+  * Blue cable to GND (ground pin)
+  * Green cable to PA2 (USART2 receive)
+  * Red cable to PA3 (USART2 transmit)
+===== Toolchain configuration =====
+The demo programs are configured for building with a Makefile. Before attempting to perform a build, update the location of the toolchain binaries (i.e. //arm-none-eabi-gcc//) in the Makefile. It is set in variable **TOOL_PATH**. If the toolchain binaries are available on the path, then the **TOOL_PATH** variable can be left empty.
+{{:manual:demos:makefile_toolpath.png?nolink&|}}
+It is assumed that tools such as GNU //make// and //rm// are installed and available on the path. For (Ubuntu) Linux users this can be achieved by running command: //sudo apt-get install build-essential//. Windows users can install the [[https://gnu-mcu-eclipse.github.io/windows-build-tools/|GNU MCU Eclipse Windows Build Tools]].
+===== Building and programming the Bootloader =====
+Before the bootloader can be used, it needs to be built and programmed into the STM32F051's internal flash memory. The steps in this section only need to be done once.
+To build the bootloader, open a command prompt in directory **\Target\Demo\ARMCM0_STM32F0_Discovery_STM32F051_GCC\Boot\** and run the command:
+<code>
+make clean all
+</code>
+The expected output is:
+<code>
++++ Cleaning build environment
++++ Clean complete
++++ Assembling [startup_stm32f0xx.S]
++++ Compiling [main.c]
++++ Compiling [hooks.c]
+...
++++ Linking [openblt_stm32f051.elf]
+...
++++ Build complete [openblt_stm32f051.srec]
+</code>
+The bootloader program is now ready to be programmed into the internal flash memory of the STM32F051. Using your favorite programmer (i.e. OpenOCD or STM32 ST-Link utility), flash the bootloader using one of the following files, depending on what file type your programmer supports:
+  * \Target\Demo\ARMCM0_STM32F0_Discovery_STM32F051_GCC\**Boot**\bin\**openblt_stm32f051.elf**
+  * \Target\Demo\ARMCM0_STM32F0_Discovery_STM32F051_GCC\**Boot**\bin\**openblt_stm32f051.srec**
+===== Building the Demo Program =====
+To build the user program, open a command prompt in directory **\Target\Demo\ARMCM0_STM32F0_Discovery_STM32F051_GCC\Prog\** and run the command:
+<code>
+make clean all
+</code>
+The expected output is:
+<code>
++++ Cleaning build environment
++++ Clean complete
++++ Assembling [startup_stm32f0xx.S]
++++ Compiling [boot.c]
++++ Compiling [main.c]
+...
++++ Linking [demoprog_stm32f051.elf]
+...
++++ Build complete [demoprog_stm32f051.srec]
+</code>
+The output file is
+  * \Target\Demo\ARMCM0_STM32F0_Discovery_STM32F051_GCC\**Prog**\bin\**demoprog_stm32f051.srec**
+===== Firmware update procedure =====
+To download the demo program \Target\Demo\ARMCM0_STM32F0_Discovery_STM32F051_GCC\**Prog**\bin\**demoprog_stm32f051.srec** using the bootloader, follow the instructions in the following links, depending on the communication interface you intend to use:
+  * [[manual:rs232_demo|Firmware updates using the RS232 communication interface]]

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