Question BTT M8P v2 pinout issues

[Jekle]

Printer Model

Formbot Voron 2.4 Pro+

Extruder Type

Clockwork 2

Cooling Type

Stealthburner

Hi all

I've built myself a Format 2.4, with a Manta M8P + CB1 + SB2209 (RP2040).
After spending an entire day getting the CAN to work, I finally got that up and running. I'm working on mixing and matching my config file (I've named it mainconfig.cfg) but now I'm running into this issue.

I've quadruple checked the pinout as provided by BTT, and the pin should be correct. However, this keeps popping up, and I haven't got a clue on how to fix it.
Anybody got any clue on how to fix this?

 

[shiftingtech]

If your klipper log is to be believed, your MAIN mcu is an rp2040 device, and your EBBCan is an stm32h723xx device. That seems rather improbable: you've gotten the canbus IDs tangled up.

 

[bomtarnes]

Besides shiftingtech's spot:

PB1 is not a valid thermistor port- it's used for another function on the board already.

I'd expect your heatbed thermistor to be plugged into one of the THx ports which are outlined in brown in this image: https://github.com/bigtreetech/Manta-M8P/blob/master/V1.0_V1.1/Hardware/BIGTREETECH MANTA M8P V1.0 PinOut.png

Therefore it should be PA0/1/2/3/4

 

[shiftingtech]

Besides shiftingtech's spot:

PB1 is not a valid thermistor port- it's used for another function on the board already.

I'd expect your heatbed thermistor to be plugged into one of the THx ports which are outlined in brown in this image: https://github.com/bigtreetech/Manta-M8P/blob/master/V1.0_V1.1/Hardware/BIGTREETECH MANTA M8P V1.0 PinOut.png

Therefore it should be PA0/1/2/3/4

You linked an M8P V1 doc, not V2 though. V2 has a very different pinout.

 

[bomtarnes]

Very true. PB1 is valid on a v2 manta: https://github.com/bigtreetech/Mant...ardware/BIGTREETECH MANTA M8P V2.0 PinOut.png

 

[Jekle]

If your klipper log is to be believed, your MAIN mcu is an rp2040 device, and your EBBCan is an stm32h723xx device. That seems rather improbable: you've gotten the canbus IDs tangled up.

Switched them up, now it's complaining about gpio79, which is mentioned for [fan_generic soc-fan] in my .cfg. Seems to be a mistake in the sample file, probably should be gpio26 looking at the board.
It then throws up this:


I've also tried "pin: host:gpio26", "pin: CB1:gpio26", with similar results. Not sure where to go from here, what am I missing?

 

[shiftingtech]

That fan appears to be directly connected to the cb1. The cb1does have a gpio79, so I'm not quite sure why that was dismissed. Pretty sure it should be host:gpio79, just like is shown in the comment on that line

 

[Jekle]

That fan appears to be directly connected to the cb1. The cb1does have a gpio79, so I'm not quite sure why that was dismissed. Pretty sure it should be host:gpio79, just like is shown in the comment on that line

It then comes back with "Unknown pin chip name 'host'"

 

[shiftingtech]

It then comes back with "Unknown pin chip name 'host'"

Oh, sorry. CB1:gpio79 then

 

[Jekle]

Oh, sorry. CB1:gpio79 then

Yes! That did the trick! Thank you so much!

Going from red to orange now! More stuff to dive into/fix, but we're getting there!