Pedalrs

Building

memory.x and .cargo/config files are automatically copied over based on the microcontroller being used. Select the microcontroller by using features. By default, stm32f0 is selected:

cargo build --release

WARNING The very first time a build is run on a fresh repo, or when changing between chips it is advisable to build twice as the memory.x and .cargo/config files don't appear to be picked up on the first run. It may also be advisable to cargo clean between builds.

To build for STM32F1 chips, run

cargo build --release --features stm32f1

To check the built size

cargo size --release

To deploy on STM32F103C8 (blue pill) target

cargo flash --chip stm32f103c8 --release

To deploy on STM32F042 target

cargo flash --chip STM32F042F4Px --release

Debugging

Debugging on device requires two terminals. In one terminal:

openocd -f interface/stlink.cfg -f target/stm32f0x.cfg

In a second terminal:

arm-none-eabi-gdb -q ./target/thumbv6m-none-eabi/release/pedalrs -ex "target remote :3333"

Once GDB loads

l
b main
c

This will stop at the start of the main function. From there you can use normal gdb commands to debug.