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From: Jerry Van Baren <gvb.uboot@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] Seeking PPC BDM resources for MPC860, docs for old MPC860 Eval Board
Date: Sun, 04 Jan 2009 08:14:48 -0500	[thread overview]
Message-ID: <4960B648.20908@gmail.com> (raw)
In-Reply-To: <8585CA02-AED9-4E4F-AE85-F45533BC5514@alexperez.com>

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

      parent reply	other threads:[~2009-01-04 13:14 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-01-04  6:30 [U-Boot] Seeking PPC BDM resources for MPC860, docs for old MPC860 Eval Board Alex Perez
2009-01-04  7:11 ` Jean-Christophe PLAGNIOL-VILLARD
2009-01-04  8:28 ` Wolfgang Denk
2009-01-04  9:34   ` Alex Perez
2009-01-04 11:20     ` Wolfgang Denk
2009-01-04 13:14     ` Jerry Van Baren [this message]

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