10 Jul
2004
10 Jul
'04
11:44 p.m.
In message <20040710095455.GB27135(a)bos7.spole.gov>
Ethan Dicks <dickset(a)amanda.spole.gov> wrote:
On Sat, Jul 10, 2004 at 08:28:20AM +0100, Philip
Pemberton wrote:
It is if you know where to look :)
ftp://ftp.agilent.com/pub/callpub1/ddt/misc/HPIB_Tut.pdf
Thankfully Agilent were nice enough to leave a
scanned copy of
HP's "A Tutorial Guide to the GPIB Bus" on their FTP site
Is it easy to find? I have lots of docs from the PET era about basic
IEEE-488 details, but
when I'm fiddling with HP gear, newer information will probably be needed.
The
PDF on Agilent's FTP site ("Tutorial Description of the Hewlett Packard
Interface Bus") seems to be undated, but it mentions IEEE 488.1, which was
first released in 1978, IIRC.
I did find the patent HP had on three-wire handshaking - assuming patents are
still only valid for 20 years, then it's long since expired. I found the
patent in question - US3,810,103; a.k.a. GB1394646. I was going to grab a
copy of the patent off GB-esp@cenet, but it was down for maintenance earlier
and is still playing up.
Later.
--
Phil. | Acorn Risc PC600 Mk3, SA202, 64MB, 6GB,
philpem(a)dsl.pipex.com | ViewFinder, 10BaseT Ethernet, 2-slice,
http://www.philpem.dsl.pipex.com/ | 48xCD, ARCINv6c IDE, SCSI
... SEGA and Nintendo are combining, they call it Windows NT