24 Jul
2007
24 Jul
'07
11:58 a.m.
On Jul 24, 2007, at 3:53 AM, Glen Slick wrote:
I have an HP A4363A button box and a A4362A dial box. I wonder if
they are similar at all to the IBM versions. The button box has 32
buttons with indicators arranged as 6 rows of 4,6,6,6,6,4 buttons.
The A4363A button box needs +5V and +/- 12V and talks 9600,N,8,1. On
reset all keys should be set to autosend. The reset command from host
to device is 0x20 and the device should respond with 0x20 for success
or 0x21 for failure. Data values 0xC0 to 0xDF from the device are key
down, 0xE0 to 0xFF are key up. Maybe that is useful, or maybe
completely useless info for the IBM device.
Hmmmm that sounds useful. I will see about digging up one of my
IBM units to see if it's compatible. Thanks!
-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.)
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. :-(