The pin names of the Fly-E3-Ultra H723 in the firmware

Fly-E3-Ultra H723 Pinout Diagram

Fly-E3-Ultra H723
Fly-E3-Ultra H723 Pinout

Fly-E3-Ultra H723 Driver Pins in Firmware

Driver pin numbers. They are separated into driver number.

Pin Type 0 1 2 3 4
Enable Pins PE_5 PE_1 PC_2 PD_6 PC_15
Step Pins PE_3 PD_1 PA_15 PD_4 PC_13
Direction Pins PE_2 PD_0 PD_7 PD_3 PC_0
UART Pins PE_4 PE_0 PA_8 PD_5 PC_14

Fly-E3-Ultra H723 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 Pin Name(s) PWM Timer (up to 3.6) PWM Timer (from 3.7)
PA_0 bed, hbed Timer 2 Timer 2
PA_1 e1temp, t1 Timer 2 Timer 2
PA_2 e0heat, he0 Timer 15 Timer 15
PA_3 bedtemp, tb Timer 2 Timer 5
PA_4 e0temp, t0    
PA_9 tx1, btnen2    
PA_10 rx1, btnen1    
PA_13 lcdcd    
PA_14 lcden    
PB_0 servo0 Timer 3 Timer 8
PB_1 laser Timer 3 Timer 8
PB_2 lcdss    
PB_3 lcdsck Timer 2 Timer 2
PB_4 lcdmiso Timer 3  
PB_5 lcdmosi Timer 3  
PB_6 fan2 Timer 4 Timer 4
PB_7 fan3 Timer 4 Timer 4
PB_10 ymin, ystop Timer 2 Timer 2
PB_11 neopixel Timer 2 Timer 2
PC_1 boardtemp, tboard    
PC_4 zmin, zstop    
PC_5 probe    
PC_6 e1heat, he1 Timer 3 Timer 8
PC_8 sdd0 Timer 8 Timer 8
PC_9 sdd1 Timer 8 Timer 8
PC_10 sdd2    
PC_11 sdd3    
PC_12 sdsck    
PD_2 sdcmd    
PD_10 pwr, pwrdet    
PD_11 pson    
PD_12 xmin, xstop Timer 4 Timer 4
PD_14 fan1 Timer 4 Timer 4
PE_6 lcdrs Timer 15 Timer 15
PE_7 lcdd6    
PE_8 lcdd7    
PE_9 lcdd4    
PE_10 lcdd5    
PE_11 beep    
PE_12 btnenc    

Configured SPI connections

The below SPI channels are preconfigured in the firmware.
Where NoPin is present, then that pin is not configured by default.

SPI Channel CLK MISO MOSI Hardware or Software Use
0 PA_4 PA_5 PA_6 Hardware MAX31855 and MAX31865
1 PB_13 PB_14 PB_15 Hardware WiFi
2 PB_3 PB_4 PB_5 Hardware EXP2
3 NoPin NoPin NoPin Software None
4 PE_10 NoPin PE_8 Software Single wire Ender displays
5 PE_9 NoPin PA_14 Software Reprapdiscount Display
6 NoPin NoPin NoPin Hardware None
7 NoPin NoPin NoPin Hardware None
8 NoPin NoPin NoPin Hardware None
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