stm32f103 board

arduino boot loader

• https://github.com/rogerclarkmelbourne/Arduino_STM32/wiki/Flashing-Bootloader-for-BluePill-Boards

triple usb serial

• https://satoshinm.github.io/blog/171223_stm32serial_triple_usb-to-serial_adapter_using_stm32_blue_pill.html
• https://github.com/satoshinm/pill_serial

dpavlin@nuc:/nuc/stm32/pill_serial$ cat flash.sh
sudo ../stlink/build/Release/st-flash write src/pill_serial.bin 0x08000000

lower serial speed to 9600 so we can use slow sensors on it: serial-speed.diff

openocd with raspberry pi

http://git.rot13.org/?p=openocd-rpi2-stm32;a=blob;f=openocd-rpi.txt

clones

https://github.com/thanks4opensource/buck50/issues/2

https://github.com/keirf/Greaseweazle/wiki/STM32-Fakes

dpavlin@nuc:/nuc/stm32/Greaseweazle$ wget https://github.com/keirf/Greaseweazle/releases/download/v0.22/Greaseweazle-v0.22.zip

dpavlin@nuc:/nuc/stm32/Greaseweazle$ unzip Greaseweazle-v0.22.zip Greaseweazle-v0.22/alt/Blinky_Test-v0.22.hex
Archive:  Greaseweazle-v0.22.zip
  inflating: Greaseweazle-v0.22/alt/Blinky_Test-v0.22.hex

write it to flash using openocd

> flash write_image erase /nuc/stm32/Greaseweazle/Greaseweazle-v0.22/alt/Blinky_Test-v0.22.hex 0 ihex
auto erase enabled
wrote 5120 bytes from file /nuc/stm32/Greaseweazle/Greaseweazle-v0.22/alt/Blinky_Test-v0.22.hex in 0.299529s (16.693 KiB/s)

serial output is on the programming interface at pins A9/TX and A10/RX: Not via the USB port!