ConnLCD connection references in RRF3

[cjm]

I would like to use the ConnLCD connector on a Duet2 Ethernet board to provide extra GPIOs controlled using M42.

I note that connlcd.3 And connlcd.4 are listed as available in the “Misc” section of the RRF3 pin list, but not connlcd.5/6/7/8/9/10

Does this mean that pins 5 to 10 on ConnLCD should not be used as GPIOs?

[A Former User]

@cjm said in ConnLCD connection references in RRF3:

Does this mean that pins 5 to 10 on ConnLCD should not be used as GPIOs?

not sure why, but it does mean the current firmware cannot use them yes.

it might just be a matter of adding them to https://github.com/Duet3D/RepRapFirmware/blob/v3.02-dev/src/DuetNG/Pins_DuetNG.h#L306 but I think this is one for dc42 to chime in on.

[dc42]

We re-purposed ConnLCD in firmware for two additional external stepper drivers several years ago. See https://duet3d.dozuki.com/Wiki/Using_external_stepper_motor_drivers for the pinout. The two endstop pins are usable as GPIO.

[cjm]

@dc42

As the ConnLCD pins appeared to be straightforward 3.3V logic level signals direct from the processor, I'd hoped they could be redefined in RRF3.

Anyhow, thanks for the replies which fully address my question.