Uart Serial
I just flashed to the RatOS beta and I cant connect my SKR MINI E3 V3.0 to my raspberry pi over Uart Serial anymore.
I used to have the following code in the printer.cfg but this doesn't work anymore as it gives an Error configuring printer:
[mcu]
serial: /dev/ttyAMA0
restart_method: command
I tried looking for a solution but couldn't find one. If this doesn't work in the beta I will just buy a otg cable
2 Replies
RatOS uses USB and doesnt support UART for boards. For UART communication you need to compile the firmware yourself.
You said "anymore" so i assume you've used it like this before, in which case i assume you compiled and flashed the firmware yourself (selecting UART communication). So, if ttyAMA0 doesn't work it's probably on another port.
UART is enabled by default, so it should be straight forward.
Anyway, as this isn't RatOS related, i'm gonna go ahead and close this. Use #klipper if you have further questions, or create a new thread if you have a support request involving RatOS.
ambitious-aqua•17mo ago
Thank you for the explanation, I didn't know RatOS doesnt support UART for boards but that explains why it stopped working. Ill try and manualy compile the firmware myself.