Hi, it‘s been a while.
I was wondering - due to two fast cores, beefy flash and RAM - wouldn’t it be possible to build the middleware for 3D printers in uP with all its perks and use a seperate RTOS task for Marlin -> step/dir or even UARTs? My uneducated guess is that the UART could be multiplexed to n TMC drivers.
I do take no for an answer