Duet 3 IO_1 UART not working

[soccerpaul]

After reading that the most recent firmware updates for the Duet 3 made it possible to use both IO_0 and IO_1 for UART communication, I tried using IO_1 to receive serial commands that previously worked on IO_0, but it doesn't seem to work. I also tried connecting the PanelDue to IO_1 to see if it might work and it doesn't work either, although it works fine with IO_0.

I'm running the most recent firmware (3.2beta4.1). My goal would be to use IO_0 for the PanelDue and IO_1 for other UART commands from a second controller.

Is there something I'm missing? I believe I added the appropriate lines to the config file (M575 P2 S2 B9600 for my other controller, M575 P2 S1 B57600 for the PanelDue, neither works).

Thanks.

[dhusolo]

I'm curious on this too. I'd like to have my CNC pendant wired directly to the board instead of the panel due

[dc42]

I confirm that support for a serial connection on IO1 on the MB6HC is not working. I have identified the [first] reason and will fix it in 3.2RC1.

[dc42]

PS - if you want to test the fix, there is an internal RRF build at https://www.dropbox.com/sh/woso2i7h6k846x0/AADDaKxz3QgiGmKygSMTd00oa?dl=0 that you can try. Use it with caution.

[A Former User]

Both commands with P2?(never mind that was an old post)

[soccerpaul]

@dc42 the fix seems to have worked. Thanks.

[ktapper]

Is the fix in the latest Pre-release?

[dc42]

@ktapper said in Duet 3 IO_1 UART not working:

Is the fix in the latest Pre-release?

Yes.