Hi Johannes,
On 19.11.22 14:37, Johannes Kastl wrote:
Hi Seife,
On 19.11.22 at 14:17 Stefan Seyfried wrote:
On 19.11.22 13:24, Johannes Kastl wrote:
I get errors like these when I open the serial console once I notice
the hang:
Unknown command 'jT)HL' - try 'help'
=>
Is it possible that there is noise on your serial line?
It is not connected normally to any laptop or machine normally. I.e. the
cable is just hanging around, connected to the Pine64 and not plugged in
on the other end :-)
Then the first thing I'd try is to disconnect it on the Pine64 side also.
I'm guessing you have a FTDI(?) cable connected which is unpowered if
not connected to the PC? In that case, it might get parasite power from
the GPIOs used as UART for the serial console and act in unpredictable ways.
Just disconnect it, or add relatively low value pull-down resistors on
TXD/RXD lines.
Have fun,
seife
--
Stefan Seyfried
"For a successful technology, reality must take precedence over
public relations, for nature cannot be fooled." -- Richard Feynman
