Building Firmware

This project is cross-compiled on an x86 Ubuntu Linux system. However other similar Linux-base systems (or a Linux virtual environment on another OS) can likely be made to work quite easily.

To install the prerequisites:

sudo apt install git gcc-arm-none-eabi python3-pip srecord stm32flash zip
python3 -m pip install --user bitarray crcmod pyserial requests

To build the firmware, producing a distribution folder and zip archive:

git clone https://github.com/keirf/greaseweazle-firmware.git
cd greaseweazle-firmware
make dist

If you wish to build firmware incrementally, for example for development testing, then you can build all targets as follows (you can modify or remove the -j8 parameter to adjust build parallelism):

make -j8

You will now find HEX files for flashing at:

out/<mcu>/<level>/greaseweazle/target.hex
<mcu> := at32f4 | stm32f1 | stm32f7
<level> := debug | prod

You can flash the relevant HEX to your Greaseweazle via serial or ST-Link. The flash and ocd build targets may be useful for automatically doing this on Linux, via serial adapter or OpenOCD/ST-Link.

If you require debug logging over the serial line at 3Mbaud then use the HEX file within the relevant debug folder.

For example, to build and automatically flash the F7 firmware with debug logging to an attached Greaseweazle via ST-Link and OpenOCD:

make -j8 ocd target=stm32f7/debug