Remora - Rpi Software Stepping Using External Microcontroller via SPI

I know the supply chains are still messed up and from what it sounds its going to be over a year till they are near normal.
With the fact that people can get the STM32 chips is this board going to become the main for remora project going forward?

Hi, I'm really enjoying the STM32 development version. A few things still to work out as time permits. Working on issues with the software serial implementation that is needed for TMC stepper drivers. Once this is done I'll be moving the board to my work horse 3D printer. Why?.. because the SPI communication is so much more stable and fast! I've not had one rejected SPI packet, but with the LPC1768 I've had 13hr print jobs fail half way through because of SPI data corruption.

So, will the STM32 become the focus moving forward? With the huge number of STM32 based boards I think it makes sense, but I am setting up the code base to abstract out the hardware better so its easier to maintain for both LPC and STM32 versions.

I need to get myself a STM32F1 based board to work on support for these common boards as well. Time, or lack off, is always an issue though....

That makes sense.
Now to dive into the stm boards and see what would fit best.
Seems this lpc board of mine may go into a printer once the stm32 board gets here

Very interesting
BTT is working on a H743 board (480mhz)

it could be the ultimate solution, i will try to port your code to H7XX once ur done.

It's just a board that uses a STM32H743II
www.st.com/content/st_com/en/products/mi...753/stm32h743ii.html

How available is this device?

The board is hopefully available from overseas resellers, the chip itself like every other stm32 is not available until at least q2 2022.