29 Jul
1999
29 Jul
'99
2:51 p.m.
Tony,
At 11:16 PM 7/29/99 +0100, you wrote:
THAT's news to me! I've never heard of using a 150 as a HP-IB
controller and I have a large STACK of 150 documentation and none of it
even hints that you can what you're talking about. Can you make a copy of
that for me? S@#* and I've got a pile of 150s setting out in the rain
cause I had no use for them!
, but
That's news to me (and I guess to HP). The HP150 Technical Reference
Manual has a section entitled 'HPIB Interfacing' which describes how to
use the HPIB port for non-disk devices.
doesn't the HP150 have an IEEE-488 port (aka
GPIB, HPIB) as standard.
Yes, it does but the 150 uses the port to connect to peripherals
operating under MS-DOS. It has no commands that will let you send or
recieve specific strings over the HP-IB. There are some _firmware_ (not hardware - the
HP150's hardware can do
just about anything on the HPIB - it's based on a TMS 9914 controller).
In particular, the HP150 expects to initiate every bus transaction, and
therefore doesn't support SRQ, Trigger, Multiple controllers or
transactions between other devices on the same bus. But for controlling
simple instruments it should be fine.
Basically you OPEN a device called HPIBDEV. Then use the MS-DOS IOCTRL
call to send control blocks to the HPIB driver. The manual describes the
format of said blocks and gives an example program in C to talk to a 9111
graphics tablet.
In C? Is there a C that will run on the 150? Most of the software has
to be tailored specificly for the 150 or else be VERY MS-DOS compatible
with no short cuts. I've heard of BASIC, Assembler and Pascal that will run
on the 150 but I haven't heard of a C compiler that would.
Joe