30 Sep
2008
30 Sep
'08
11:03 a.m.
Hi David,
Plugging this into a PC with a straight-through serial cable shows nothing at all on boot. However, pinging it with the usual 0x1b bytes on startup triggers PBL and the LEDs start flashing. But I don't get anything back down the cable, so I can't talk to it. So either the protocol's different, or else it's non-standard wiring (or my cable is broken), or the E1 has a fried UART, or it might not be a standard port after all and may need level-shifting.
Or baud rate? You could be right on the level-shifting. Any clue from peering inside?
Cheers,
Ralph.