Quote:
When I tried to stop autoboot, the character I wrote became some gibberish which the console couldn't display correctly.
|
Did you verify serial parameters? I think it was 8 data bits, 1 stop bit, no parity
Try pressing different keys (several consecutive times each) and see if the gibberish that you receive in return follows a pattern. If you post the sequence of keypresses and the chars received after each keypress we might find something.
If there is no pattern in the gibberish, then I'd suspect wrong voltages or noisy cable.
HTH
Nix