Oct 16, 2026, 8:59 PM@tamme You might also enjoy the work @azonenberg did hooking up an FPGA to a slightly chonky ST microcontroller through one of its external memory interfaces. It’s a separate chip, but it’s an approach that allows you to choose a size-appropriate FPGA that has an open source toolchain.
Oct 17, 2026, 2:44 PM@jaseg @azonenberg whoa, that looks like a cool solution. I got to find some time to read the article in full, but it seams to be abest of both worlds combination. Setting up the hardware could be a bit annoying, but I really like it! Thanks for pointing me to it
For future reference, here is the article: https://serd.es/2024/07/24/Memory-mapping-an-FPGA-from-a-STM32.html
@tamme @jaseg On the higher end, there is also the STM32MP2 which has PCIe that I am exploring as a lower pin count, higher performance alternative.
It's meant to run embedded Linux but I've successfully brought it up bare-metal with no OS in a few kB of firmware. No uboot, no linux, no RTOS, just raw register pokes.