Following various forum and blog posts strewn around the interwebs (mostly around this site), I connected up the module to the appropriate GPIO pins on the Pi, and used a USB extension cable to hook up the module to my netbook (running Arch/x86). My Pi is running the "hard float" version of Arch; it's a recent install, and I am still installing and setting up things there, so not everything is yet arranged how I'd ultimately like it.
When I started minicom on the netbook (115800, 8-N-1), I expected to see a login prompt from the Pi, but the terminal display stayed more or less blank, aside from the odd garbled character or three (presumably stray voltages or something?).
I am reasonably certain that the USB-serial module is connected and working correctly on the Pi. When I press keys on the netbook when minicom is running, the "RX" LED on the module flashes, and I can echo text from the Pi to its serial port (/dev/ttyAMA0) and the text appears in the minicom terminal on the netbook.
My suspicion is that the Pi's console port is either not set up somehow, or it is not directing the console I/O to /dev/ttyAMA0 properly, so minicom on the netbook doesn't have anything on the Pi to "talk to". I don't know if this is correct, but I've made sure that
- Code: Select all
is present in /boot/cmdline.txt.
In short: I'd be most grateful if someone could suggest what else I need to do, in order to be able to get serial console access running on my Pi?
Many thanks in advance