8 Dec
1998
8 Dec
'98
2:36 p.m.
At 11:19 PM 12/8/98 +0000, you wrote:
Hmm. I haven't noticed that. I'll have to take a look at mine.
Assuming the entire output of the PS is available to the chain. That's
a big assumetion!
> >IIRC they're simply mirror images of each
other. But the plugs are
> >slightly different so you can't plug the cable into the wrong socket
anyway.
I haven't tried it but that's not what HP says.
I've just tried it with a spare HP-HIL cable and keyboard. The plugs
_will_ fit in the wrong sockets, but they won't lock. So if the plug fits
_and_ clicks in place it's right.
Incidentally, one plug/socket is black and the other is white/clear, at
least on this cable/keyboard.
I was right about the wiring being a mirror image. That's exactly what it is.
Strange. Why would they key the ends then?
I think there is an addressing limitation but
HP says that you'll usually
run into the power limitation first. I'm not sure how you're supposed to
know when you do unless the whole system chokes.
Odd... HP-HIL devices dont take that much power in general. On a
large-ish 9000 system, I would think the PSU could easily cope with quite
a chain of devices.
> >> there's only one piece of software for the HP 150 Touch Screen II
that will
^^^^^^^^^^^^^^^^^^^^^^
The original HP150 uses a special keyboard and touchscreen interface. If
you want HP-HIL it's on an expansion card. In the HP150-II, HP-HIL is
standard and the keyboard and touchscreen are both on the HP-HIL interface.
But you mentioned 'Touch Screen II' earlier. That's why I was so suprised
that only one piece of software used the mouse on that system.
Yes, I was surprised at that too. I wondered why I couldn't get the
mouse to work on the TS-II. I finally found one of the 150 designers and
asked him. He's the one that said that only DrawPerfect used the mouse.
Joe
I'm
pretty sure that can use the HP-HIL mouse
on a 150-II.
Yes, but not the standard 150. The TS-II uses the HP_HIL devices, the 150
uses a non-standard keyboard.