The pin names of the SKR v1.1 in the firmware

SKR v1.1 Pinout Diagram

SKR 1.1
SKR 1.1 Pinout

SKR v1.1 Driver Pins in Firmware

Driver pin numbers. They are separated into driver number.

Pin Type/Driver Number 0 1 2 3 4
Enable Pins 4.28 2.0 0.19 2.12 0.10
Step Pins 0.4 2.1 0.20 0.11 0.1
Direction Pins 0.5 2.2 0.21 2.13 0.0
UART Pins N/A N/A N/A N/A N/A

SKR v1.1 Other Pins in Firmware

If more than one pin name is availble, either name can be used in the firmware (config.g).
If the pins aren’t in the table (due to not having a special name), then the pin itself can be used in the form of P0.1 or P0_1.

Pin Number Pin Name 1 Pin Name 2
0.23 bedtemp tb
0.24 e0temp th0
0.25 e1temp th1
1.24 zstopmax z+
1.25 zstop z-
1.26 ystopmax y+
1.27 ystop y-
1.28 xstopmax x+
1.29 xstop x-
2.3 fan0 fan
2.4 e1heat he1
2.5 bed hbed
2.7 e0heat he0
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