@jay_s_uk said in Can I use an SKR Pro with external drivers:

@markz I use an SKR Pro with external drivers on my CNC machine.
So the answers are

1. Yes. I made my own little adapter boards to break out the pins but you can also buy these
2. Yes. you just need to set the appropriate timings
3. Duet 2 supports external drivers using an external breakout board or you can get a duet 3 with a 1XD board to connect an external driver, although one would be required per driver

Sorry for reviving a several month old thread but this is exactly what I'm looking for.

@jay_s_uk is there any chance you have any details available on the adapters you made? I'm not able to find any of the premade ones anywhere that won't take ages to ship and I'm trying to get this project up and running as quickly as I can. My SKR 1.4 turbo arrives today and I have the high voltage stepper controller already, just need to be able to connect them.

Thank you for any help you can offer!

I fixed it, feeling kind of silly for missing it.

For anyone else that comes across it, I was missing updating my M563 command to also use H2

Hey,

I'm having a problem with the first thermistor connection, once the hotend reaches 200+ degrees a slight wiggle to the connection on the board will cause my temp reading to go crazy.

I've tried with different thermistors, making sure things weren't pinched, etc. It's pretty consistently the connector on the board. Solder all appears fine as well.

I'm wondering if I can switch the printer to use the second thermistor port instead. When I try to set it the thermistor reads as an open circuit and I get 2000 degrees. My code is:

M305 P0 T100000 B4092 R2200                             ; set thermistor + ADC parameters for heater 0
M143 H0 S150                                            ; set temperature limit for heater 0 to 150C
M305 P2 T100000 B4092 R2200                             ; set thermistor + ADC parameters for heater 1
M143 H2 S275                                            ; set temperature limit for heater 1 to 275C

Thanks!

Thank you!

I was looking through the config.g file but wasn't sure what I might need in there. I was hoping there was a GCode command I could use, that makes life much easier

Thanks again, have an awesome holidays!

Hey everyone. I'm working with the Duet Maestro board and had to replace the Z switch on my printer. My new switch is inverted from the stock one and I need to swap that in the firmware...but I'm not really sure how to go about that. I've done it in Marlin on another printer but am stuck here.

From what I can see it is something to do with this section, but I don't know what I would need to change, or if I even have the right line. If anyone could point me in the right direction that would be amazing!

// Endstops
// RepRapFirmware only has a single endstop per axis.
// Gcode defines if it is a max ("high end") or min ("low end") endstop and sets if it is active HIGH or LOW.
constexpr Pin END_STOP_PINS[NumEndstops] = { 24, 32, 46, 25, 43 };