TMC

[guestisp]

Any changes to have support for TMC (in fallback mode, not UART) ?

They are working fine acutally , but i'm thinking they are a little bit slow compered to a Marlin/Klipper printer.
Even setting 120RPM, they doesn't got at 120 for sure. We are near 50rpm....

[laurb9]

This library does software bit banging (flipping the step output), it is going to be slower than timer-based or SPI/UART. Multiple motors, but in particular high microstep values may hit an RPM wall, sooner even on 8-bit platforms.