24 Jul
2007
24 Jul
'07
11:57 a.m.
On Jul 24, 2007, at 4:15 AM, Sridhar Ayengar wrote:
I use one on a daily basis at work.
What do you want to know?
Protocol specs! :-)
-Dave
--
Dave McGuire
Port Charlotte, FL
I'm getting a little closer ..
I have the power adapter now and the correct cabling. This
device communicates over the serial port, but I have no idea how
to talk to it, and I haven't even been able to get it to transmit
noise on the serial port to the host PC. (I've tried a variety
of bps rates.)
Does anybody have IBM book SA23-2646-01 "Hardware Technical
Reference: Options and Devices" ? The protocol for speaking to
this thing might be in there ...
If anybody else has one connected to a PC RT or an old AIX box,
it would be possible to reverse engineer the protocol by tapping
the serial cable and watching what comes across.
It's a neat looking piece of hardware - 32 buttons, each having a
controllable indicator light. But I'm getting grumpy because I
have no idea how to feed it. :-(
I have a few of those. Really, really neat
little boxes. I've
been similarly unable to find out anything about them. :-(