Using a serial port
Is there anyway to get an attached serial port working on Debian and
raspberry PI 4? It appears the tested installs want to use it as a
serial console, I do not. I want to use UART1, the PL011, as an RS232
port to a projector.
I can do this using Raspberry OS, but, not Debian using the tested
installs. There is no way to disable Bluetooth via the overlays used on
Raspberry OS. I can sort of mess around and stop the console from being
started on ttyS1, but no way to use the port as a serial port to send
and received data. Apparently the dtoverlays are not there.
So, is there any way to really use a serial port, attached to any GPIO
pins, as a real RS232 port using Debian images? if so, what do I need to
disable or enable?
As mentioned, had it working on Raspberry OS which is based on Bullseye.
But unfortunately I can't use Raspberry OS for our usage.
Steve
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