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- Path: news.uunet.ca!cuugnet!not-for-mail
- From: gottlob@cuug.ab.ca (Robert Johnston)
- Newsgroups: comp.sys.cbm
- Subject: Commodore to IEEE Cable
- Date: 11 Mar 1996 18:20:30 -0700
- Organization: Calgary UNIX Users' Group
- Message-ID: <4i2jgu$v5@dec3300.cuug.ab.ca>
- NNTP-Posting-Host: dec3300.cuug.ab.ca
- X-Newsreader: TIN [version 1.2 PL2]
-
- Reguarding the last message (can't remember who - sorry).
- About Connecting a C64 up via the IEEE-488 protocol:
-
- This is something I am very interested in I have other equipment
- that use the GPIB (HPIB or IEEE-4888).
-
- Firstly, the easiest way to accomplish this is to get the C64 to GPIB
- adapter module and and plug it into the expansion port. The card edge to
- 24pin cinch connector cable attaches to that.
-
- But, and heres the fun part, the protocol used by the serial bus on the
- C64 is almost identicaly to the GPIB specifications - except its been
- serialized.
-
- I will be building my own protocol converter someday - I
- hope? I know that the floppy drive control routines issue two
- non-GPIB codes. They had to do with a special close secondary
- channel where some reserve bits are used.
- So a minor firmware translation is in order but other than that it
- should be easy.
-
- BTW if someone has built a C64 to GPIB converter and wouldn't mind
- being a contact drop me a message.
-