Alex Perez wrote:
Hi Wolfgang,
On Jan 4, 2009, at 12:28 AM, Wolfgang Denk wrote:
[snip]
I realize this. The board itself is quite well built, and in all likelihood, it has some sort of integrated ROM monitor. The serial ports are strangely on RJ11 connectors, and I don't know what their pinouts are. I have a call in to Wind River systems, but
Without documentation these boards are only usable as doorstops.
I have a EST/SBC8260 board (also made by EST before they were bought by WR, many years ago) that also uses RJ-11s for serial I/O. Odds are good they have the same pinout:
1 MAX-232 Rin 2 MAX-232 Tout 3 n/c 4 Ground
If you ohm-out the pins to find ground and then use a scope as you power on the board to look at the pins to find Tx, you have most of the puzzle solved.
[snip]
Regards, Alex
Nothing like a Quixote quest. :-) gvb