SKR-RRF-E3 + IDEX Pin Names

SKR-RRF-E3 Pinout Diagram

SKR-RRF-E3
SKR-RRF-E3 Pinout

IDEX Pinout Diagram

SKR-RRF-E3 IDEX
SKR-RRF-E3 IDEX Pinout

SKR-RRF-E3 + IDEX Driver Pins in Firmware

Driver pin numbers. They are separated into driver number.

Pin Type 0 1 2 3 4 5
Enable Pins PD_7 PD_3 PD_14 PD_10 PC_13 PE_15
Step Pins PD_5 PD_0 PC_6 PD_12 PC_15 PE_13
Direction Pins PD_4 PA_15 PC_7 PD_13 PA_8 PE_12
UART Pins PD_6 PD_1 PD_15 PD_11 PC_14 PE_14

SKR-RRF-E3 + IDEX 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 PA0, PA.0, PA_0, A0, A.0 or A_0.

Pin Number Pin Name 1 Pin Name 2
PA_0 e0temp th0
PA_1 bedtemp tb
PA_10 RX1 tft-rx
PA_2 e1temp th1
PA_3 PT100 th2
PA_4 PA4 //RST
PA_5 PA5 //EN
PA_6 PA6 //IO0
PA_7 PA7 //IO4
PA_9 TX1 tft-tx
PB_0 servo0  
PB_1 LCDCS  
PB_10 e1stop  
PB_11 x2stop  
PB_12 PB12 //CS
PB_13 PB13 //CLK
PB_14 PB14 //MISO
PB_15 PB15 //MOSI
PB_2 LCDENCB  
PB_3 e0heat heat0
PB_4 bed hbed
PB_5 fan0 fan
PB_6 fan1  
PB_7 Neopixel PB7
PB_8 SDA1 PB8
PB_9 SCL1 PB9
PC_0 xstop x-stop
PC_1 ystop y-stop
PC_2 zstop z-stop
PC_3 e0stop e0det
PC_5 probe  
PD_10 PD10 //IO2
PD_11 PD11 //IO0
PD_12 PD12 //EN
PD_13 PD13 //RST
PD_8 PD8  
PD_9 PD9  
PE_0 PWRDET PE0
PE_1 PSON PE1
PE_10 LCDD4  
PE_11 LCDEN  
PE_2 LED PE2
PE_4 e1heat  
PE_5 fan2  
PE_6 fan3  
PE_7 LCDENCB  
PE_8 LCDBEEP  
PE_9 LCDBTN  
PE3 IO  
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