Documentation required: pin headers (P1, P2)

[k1-801]

The pin headers P1 and P2 and their uses are not documented. It seems like P2 is meant for jumpers, like the pin header on EasyBoard, but it is never explicitly stated anywhere on the repository. It might be a good idea to put this info somewhere (readme.md ?)

[the-muldoon]

Did you happen to ever find out how to fix this issue?
In the ercf_softwarecfg, the documentation says:
[ercf]
encoder_pin = ^P1.0
encoder_resolution = 1.365188

But I get an error message of:
Pin 'P1.0' is not a valid pin name on mcu 'mcu'

[k1-801]

But I get an error message of: Pin 'P1.0' is not a valid pin name on mcu 'mcu'

Couldn't solve it either, had to switch to tge Happy Hare config instead, but it also gives errors, but different - but at least the author actually responded and promised to solve it.

[the-muldoon]

Thanks for the quick response! I've been pulling my hair out for days on it. I was getting ready to try Happy-Hare anyway! Hopefully, this link will help others in the future.
https://github.com/moggieuk/Happy-Hare

[eliwong]

The pin headers P1 and P2 and their uses are not documented. It seems like P2 is meant for jumpers, like the pin header on EasyBoard, but it is never explicitly stated anywhere on the repository. It might be a good idea to put this info somewhere (readme.md ?)

You should be able to see each pin information for P1 and P2 on the back of the board.

P2 is used for backup USB connections. Some people think USB-C may be unstable or can be used when space does not allow.
At the same time, by connecting U5V and 5V through a jumper cap, the board can be temporarily powered through USB, and there is no need to connect to 24V when burning firmware.

P1 is the SWD debugging interface of RP2040. In most cases, it cannot be used unless you are a developer and need to debug code.

[eliwong]

Did you happen to ever find out how to fix this issue? In the ercf_softwarecfg, the documentation says: [ercf] encoder_pin = ^P1.0 encoder_resolution = 1.365188

But I get an error message of: Pin 'P1.0' is not a valid pin name on mcu 'mcu'

Are you talking about klipper's configuration?
When using the RP2040 control board, the pin configuration should be written as gpio**, such as ERB's encoder pin: gpio22