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Topic: SOLVED: RPI5 armtix; cannot login on the debug uart (Read 338 times) previous topic - next topic
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SOLVED: RPI5 armtix; cannot login on the debug uart

The new raspberry pi 5 has a dedicated serial header.

I can see the early messages and if console=ttyAMA10  is added to the cmdline I can also see the kernel boot messages.

If I add agetty-ttyAMA10 to services with bps adjusted to 115200 then I also can see a login prompt.

However, I cannot seem to get this 'console' to see a keyboard. I'm using elogind and seatd. The normal monitor logins work fine.

Is there some configuration I need to do to allow keyboard access?  /dev/ttyAMA10 seems to have the same permissions/ownership as other ttys.

EDIT: turns out aliexpress debug leads are not all good. Changed to another and keyboard works fine.

Re: RPI5 armtix; cannot login on the debug uart

Reply #1 –
I suppose you should rather check settings of the tool you use to connect to uart. In minicom i always disable both hardware and software flow control to be able to send some input
ARMtix

Re: RPI5 armtix; cannot login on the debug uart

Reply #2 –
Quote from: phoenix_king_rus – on
I suppose you should rather check settings of the tool you use to connect to uart. In minicom i always disable both hardware and software flow control to be able to send some input
I'll give that a try.  I'm using the same setup (except for speed) as I use on the rpi4 where it's connected via gpio to /dev/ttyAMA0.