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This is an old revision of the document!
UART | CAN | USB | TCP/IP | SD-card |
---|---|---|---|---|
No | Yes | Yes | No | Yes |
This demo is targeted towards the Olimexino-STM32 board, with 128 kB internal Flash EEPROM and 20 kB internal RAM.
To program the bootloader into the internal flash on the STM32F103 microcontroller, the Segger J-Link JTAG interface was used. However, this is not required if you have another means of programming the internal flash. To connect the 20-pin cable of the Segger J-Link to the 10-pin SWD connector in the board, the ARM-JTAG-20-10 adapter] was used. To compile the demo programs you can use the [[http://www.emblocks.org/|EmBitz development environment from Em::Blocks. The version that was used to create these demo programs was EmBitz version 1.00.
Before the bootloader can be used, it needs to be built and programmed into the STM32F103's internal flash memory. The steps in this section only need to be done once.
When using EmBitz, simply open the project file by double-clicking the file: \Target\Demo\ARMCM3_STM32F1_Olimexino_STM32_GCC\Boot\ide\olimexino.ebp from the Windows Explorer. To build the bootloader, select Build → Rebuild all target files from the program menu.
The bootloader program is now ready to be programmed into the internal flash memory of the STM32F103. Make sure the Segger J-Link debugger interface it connected to the JTAG connector on the Olimexino-STM32 board and the other side to your PC via a USB cable. Next, select Debug → Start Debug Session (F8) from EmBitz's program menu to flash the bootloader program. Once done, you can start the bootloader program by selecting Debug → Run (F5) from the program's 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:
When using EmBitz, simply open the project file by double-clicking the file: \Target\Demo\ARMCM3_STM32F1_Olimexino_STM32_GCC\Prog\ide\olimexino.ebp from the Windows Explorer. To build the demo program, select Build → Rebuild all target files from the program's menu.
The output file is
To download the demo program \Target\Demo\ARMCM3_STM32F1_Olimexino_STM32_GCC\Prog\bin\demoprog_olimexino_stm32.srec using the bootloader, follow the instructions in the following links, depending on the communication interface you intend to use:
Even though the demo bootloader can perform firmare updates via both CAN and USB, only one of these communication interfaces can be enabled at a time. This is due to a hardware limitation of the STM32F103 microcontroller where the CAN and USB peripherals cannot be used at the same time. These CAN and USB communication interfaces can be enabled/disabled with configuration macros in blt_conf.h: BOOT_COM_CAN_ENABLE and BOOT_COM_USB_ENABLE, respectively.