Mike, yeah I just verified with the oscope and resistor… d44 goes high on reboot. So this must be one of those things Chamnit was referring to.
On another note, I ran into a bug in grblmega5x that breaks pausing an M4 cut. An issue is already posted, but does not appear to be any PR for it. Seems simple, since M4 files aren’t calling M3 all the time, using M5 for pause won’t work. It needs to do something like send a G91G0X0Y0 for safety when pausing from M4 I think… or use M4 when restarting a laser cut. I saw some info related to running both laser and router at the same time… sounds like getting cam pp to handle the $32 is not going to be possible anyways… so the latter solution may be no go. The former solution I don’t think would work when using M3 though.
I know the dev is busy, but I am not sure I have the skills to handle this one. Anyone else looking into this?
On a related note, I think the same bug exists with flood and restarts… or at least in testing I don’t remember my flood turning back on either.