Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!hp-pcd!hpspkla!dubner
From: dubner@hpspkla.spk.hp.com (Joe Dubner)
Newsgroups: comp.sys.ibm.pc.misc
Subject: Re: GPIB (IEEE-488) driver from National Instruments
Message-ID: <8750002@hpspkla.spk.hp.com>
Date: 8 Jan 91 15:48:42 GMT
References: <3632@astroatc.UUCP>
Organization: Hewlett Packard Company, Spokane, Wa.
Lines: 18

I too am developing PC software that uses the National Instruments GPIB
card.  Actually, it supports either the H-P card (with a TMS9914 IC,
which is well documented in the TI data book) as well as the National
Instruments card.

However, my application doesn't require calling any drivers inside ISRs
so I can't offer you anything except my sympathy.  But if you learn
anything about the N.I. card, I'd like to know it too.

One technique you may try, however, is to set a flag inside the ISR and
exit quickly.  Then call the driver from outside the ISR if the flag is
set.  That's easy with a multi-tasking operating system, but not
impossible with DOS.  Perhaps you've already tried this; if so, pardon
me for stating the obvious.

Regards,
Joe
dubner@hpspkla.HP.COM