"MCU 'toolboard_t0' shudown: ADC out of range" extruder temperature -125 not in range 0:350
I searched countless other posts which all have solutions I already implemented, and I started to post here when I figured it out.
I had the thermistor wires on the correct toolhead port, and measured the thermistor to have 1.089 kOhm, and I had the jumper on the correct two pins (which are quite mysterious btw, no other EBB42 v1.2 pinouts have those jumpers listed or shown on the pictures). Unbelievably, the issue was that the jumper was bad. I don't know if this is a common problem, but the jumper that came with the toolboard apparently didn't work. I replaced with one of the jumpers from the rest of the VC4 toolkit, and now everything works great!
I don't know if it was still worth posting about it, but I figured it doesn't hurt to have this on the record somewhere, searchable for anyone else.
I had the thermistor wires on the correct toolhead port, and measured the thermistor to have 1.089 kOhm, and I had the jumper on the correct two pins (which are quite mysterious btw, no other EBB42 v1.2 pinouts have those jumpers listed or shown on the pictures). Unbelievably, the issue was that the jumper was bad. I don't know if this is a common problem, but the jumper that came with the toolboard apparently didn't work. I replaced with one of the jumpers from the rest of the VC4 toolkit, and now everything works great!
I don't know if it was still worth posting about it, but I figured it doesn't hurt to have this on the record somewhere, searchable for anyone else.
3 Replies
Restating the solution:
Make sure the jumper is on the two pins as described in the VC4 build docs (to the right of the 2-pin TH0 port). And if you still get this error, try changing the jumper. Somehow the jumper that came with the toolboard didn't work for one of the toolheads. After swapping, everything works now!
Never heard of a jumper going bad, nicely found!
I suppose it's possible that I simply misaligned it with the pins, but in a way that it was still friction-fit and looked legit. It's kind of a tight space, so it's tough to see, especially if you already put your toolboard on the printhead.