STM32

STM32 programming

Boot mode configuration

<syntaxhighlight lang="bash"> BOOT0 BOOT1 Boot mode Address

 x     0   Main Flash memory                      0x8000000
 0     1   System memory (built-in bootloader)    0x1FFFB000
 1     1   Embedded SRAM                          0x20000000

 in Main flash memory and System memory boot modes address is aliased to 0x0

</syntaxhighlight>

Legend

<syntaxhighlight lang="R"> o o o BOOT1 o o o BOOT0 --- </syntaxhighlight>

Boot to bootloader

<syntaxhighlight lang=" --- ">R</syntaxhighlight>

Boot to main flash

<syntaxhighlight lang=" --- ">R</syntaxhighlight>

Flashing

• Flashing is done via USART1 (A9 TX A10 RX)

Converting Elf to Bin

Required if you only have elf files produced by your toolchain - stm32flash accepts only *.bin files.

<syntaxhighlight lang="bash"> arm-none-eabi-objcopy -O binary miniblink.elf miniblink.bin </syntaxhighlight>

Using stm32flash

Test connection with

<syntaxhighlight lang="bash"> stm32flash /dev/ttyUSB0 </syntaxhighlight>

Flash and run from 0x0

<syntaxhighlight lang="bash"> stm32flash /dev/ttyUSB0 -w miniblink.bin -g 0x0 </syntaxhighlight>

Pinout