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manual:demos:stm32f0_discovery_iar

ARM-CM0 STM32 STMicroelectronics STM32F0-Discovery IAR EWARM

Supported firmware update interfaces

RS232 CAN USB TCP/IP SD-card
Yes No No No No

Development Environment

This demo is targeted towards the 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 compile the demo programs you can use the IAR Embedded Workbench for ARM development environment.

The 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)

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.

When using IAR EWARM, simply open the workspace from within the Embedded Workbench. The workspace file (stm32f0.eww) is located at: \Target\Demo\ARMCM0_STM32F0_Discovery_STM32F051_IAR\Boot\ide\. Once opened, select Project→Rebuild All 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 STM32F051. Make sure the ST-Link Debugger Interface on the STM32F0-Discovery board is connected to your PC via a USB cable. Next, select Project → Download and Debug (Ctrl+D) from the menu to flash the bootloader program. Once done, you can start the bootloader program by selecting Debug → Go (F5) 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:

  • \Target\Demo\ARMCM0_STM32F0_Discovery_STM32F051_IAR\Boot\bin\openblt_stm32f051.out
  • \Target\Demo\ARMCM0_STM32F0_Discovery_STM32F051_IAR\Boot\bin\openblt_stm32f051.srec

Building the Demo Program

When using IAR EWARM, simply open the workspace from within the Embedded Workbench. The workspace file (stm32f0.eww) is located at: \Target\Demo\ARMCM0_STM32F0_Discovery_STM32F051_IAR\Prog\ide\. Once opened, select Project→Rebuild All from the menu to compile all the demo program sources and link the together into the final executable.

The output file is

  • \Target\Demo\ARMCM0_STM32F0_Discovery_STM32F051_IAR\Prog\bin\demoprog_stm32f051.srec

Firmware update procedure

To download the demo program \Target\Demo\ARMCM0_STM32F0_Discovery_STM32F051_IAR\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/demos/stm32f0_discovery_iar.txt · Last modified: 2020/02/06 16:20 by voorburg