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This is an old revision of the document!
UART | CAN | USB | TCP/IP | SD-card |
---|---|---|---|---|
No | No | Yes | No | No |
This demo is targeted towards the STM32F3-Discovery board, with 256 Kb internal Flash EEPROM and 48 Kb internal RAM.
To program the bootloader into the internal flash, the on-board ST-Link debugger interface was used (USB ST-LINK connector). Firmware updates via USB use the USB USER connector on the board. This means that no additional hardware is needed, besides a standard micro-USB cable.
To build the demo programs you can use the GNU ARM Embedded toolchain.
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.
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 GNU MCU Eclipse Windows Build Tools.
Before the bootloader can be used, it needs to be built and programmed into the STM32F303VC's internal flash memory. The steps in this section only need to be done once.
Set the project as the active project in Eclipse. This is achieved by clicking the Boot project in the Project Explorer to select it. Next, select Project → Rebuild Project from the menu to compile all the bootloader sources and link them together into the final executable.
The bootloader program is now ready to be programmed into the internal flash memory of the STM32F303VC microcontroller. Make sure the STM32F3-Discovery board is connected to your PC using a USB cable on the USB ST-LINK connector. Next, select Run → Debug from the menu to flash the bootloader program. This will launch the Debug perspective in Eclipse. Once done, you can start the bootloader program by selecting Run → Resume from the menu.
Alternatively, you can use your favorite programmer to flash the bootloader using one of the following files, depending on what file type your programmer supports:
Set the project as the active project in Eclipse. This is achieved by clicking the Prog project in the Project Explorer to select it. Next, select Project → Rebuild Project from the menu to compile all the user program sources and link them together into the final executable.
The output file is
To download the demo program \Target\Demo\ARMCM4_STM32F3_Discovery_F303VC_TrueStudio\Prog\Debug\demoprog_stm32f303.srec using the bootloader, follow the instructions in the following links, depending on the communication interface you intend to use:
For firmware updates via USB, keep in mind that the USB cable should be connected to the USB USER connector on the board and not the USB ST-LINK connector.