TheStankec


Cs pin... Chip select pin is used for spi mode. So if you want to use spi you will need to pull from somwhere else. With uart mode you dont...

Do you see on the bottom of the boards, you have pinout marked and on exp-mot look for Exp-mot | M1RX1.21 | SKR 1.4 | M2RX1.19 | | M3RX0.28 |


Its talking... but when i try to move motors they just buzz and nothing else. if anyone has idea what that is about. oh stepper drivers are ok I tried...

oh and pins txt so you can se what is diferent /** * Marlin 3D Printer Firmware * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin] * * Based on Sprinter and grbl....