🚀 go-pugleaf

In article <TIMS.90Aug20214013@acflanl.infidel.lanl.gov> tims@acflanl.infidel.lanl.gov (Tim Sullivan) writes:
>I am going to build a microprocessor-based temperature controller.
>Ideally, to fit into our current laboratory set-up it should have an
>IEEE488 interface. I've been unable to find much information on how to
>go about doing this. I've found data sheets for bus transceiver chips,
>but is there a chip that will handle most of the protocol as well? Can
>anyone guide me toward data on such a chip? Has anyone seen a tutorial
>article on building an IEEE-488 device? Any references would be
>greatly appreciated.

Try the Motorola 68488.  It is a 40 pin device that handels all the
IEEE-488 stuff.  All you need to add is an 8 bit (or larger) CPU
and the drivers you discussed in your post.  It fairly complex to
write a device driver for, but it does do a lot itself.

The book I learned my share of IEE488/GPIB/HPIB stuff from is called
something like _The S100 and Other (Micro Computer) Busses_.  It has a
short section of about 10 to 20 pages each on about a dozen popular busses.
The IEEE488 section is fairly informative.  The motorola spec for the
68488 (this is an 8 bit part despite its 68xxx designation) is also
informative, but it assumes some knowledge of the interface before reading.

Oh, finding the 68488 is a bit difficult, and I needed the 'B' (2 mhz) part,
so I had to get one sampled from Motorola (or buy 25 from a large supplier).

>Thanks,
You're Welcome.  I hope you find the information usefull.

-Dean Reece
-deanr@sco.com