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 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

Other pin numbers. Either name can be used in the firmware (config.g).

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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