I was rummaging around in my components drawer the other day and came across an STM32F429 Discovery board that I had bought quite a while ago. This was timely as I was about to take a long train journey and needed something to play with.

Once again I’ve taken a “bare-metal”, command line approach to development here and I’ve used SVDConv.exe to generate the device header file.
My laptop runs Linux and did not show the virtual com port exported by the embedded STLink-V2 interface. This hampered the UART demo program however with an external USB/Serial interface I was able to get things going.
Code is over on GitHub and will hopefully grow over time.
Examples on GitHub