Sylvain Rochet wrote
> It looks like there is an issue in your low level UART driver, there are
> quite a lot of dropped frames due to bad FCS/ACCM drop, it can happen of
> course from time to time, very unlikely though for a given try, and
> never that much !
> As well, it seems your UART tx routine does not work properly, there are
> way too much LCP retries, as if the remote end never get most packets.
I really had a hard time calling pppos_input() or pppos_input_tcpip()
passing data byte after byte.
Every time I got bad FCS. So I had to handle the UART input and delivery
the whole PPP frame with 0xFE .. 0xFE to pppos_input. After that something
started to work.
But that is really weird because the AT commands work very well, even with
Log with UART TX
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