rpi VS ssd1306

You can see the startup assembly I use here: https://github.com/blippy/rpi/blob/master/stm32f411re/cmsis/01-blink/startup_stm32f411retx.s

If you're happy about using the SDK, but don't want VS, then a simple template is here: https://github.com/blippy/rpi/tree/master/pico/0TEMPLATE

I have managed to interface to an SD card as a block device, no file system. I was able to play audio that I dumped to the card. The project is here: https://github.com/blippy/rpi/tree/master/pico/sdcard It is not feature-complete (it doesn't write to cards, and only supports version 2 cards), but hey, it is at least a proof-if-concept that it is doable.

Write-up: https://github.com/blippy/rpi/blob/master/pico/baby.md

I have a working uart here: https://github.com/blippy/rpi/blob/master/stm8s103f3p6/bare8/05-uart/main.c 115200 baud

The solution was an alternative library (https://github.com/lexus2k/ssd1306) which I found through here. It just needed wired to the default pins. Got a lot more to do with the black pill, group project for a prototype ECG

Check out this library: https://github.com/lexus2k/ssd1306 It has suppot for rendering menus. Here is an example sketch with menus: https://github.com/lexus2k/ssd1306/blob/master/examples/direct_draw/menu_demo/menu_demo.ino