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- Newsgroups: sci.electronics
- Path: sparky!uunet!gatech!cc.gatech.edu!news
- From: byron@cc.gatech.edu (Byron A Jeff)
- Subject: GAL Programmer using 68HC705K1 - UPDATE
- Message-ID: <1992Aug13.181531.3150@cc.gatech.edu>
- Sender: news@cc.gatech.edu
- Reply-To: byron@cc.gatech.edu
- Organization: Georgia Institute of Technology
- Date: Thu, 13 Aug 1992 18:15:31 GMT
- Lines: 71
-
- I received quite a few responses on my previous post on building a GAL
- programmer. Some of it is relevant to a large group of folks so I'm posting.
-
- 1. Elektor Electronics info
-
- Old Colony Sound Lab
- P.O. Box 243
- Peterborough, NH 03458-0243
- Phone: 603-924-6526 or 6371
- Fax: 603-924-9467
-
- They accept VISA and Mastercard orders over the phone and will also
- take a personal check by mail.
-
- The GAL programmer is in the April and May 1992 issues. Back issues
- are $4 apiece.
-
- There is also a PC board and software for use with an PC through the
- parallel port.
-
- 2. Serial communications using 68HC705K1
-
- To my total surprise I was able to get 9600 BPS communication using
- this microcontroller. It doesn't currently function in full duplex
- mode but for my programmer I don't need it to. I have to add the caveat
- that it'll probably be difficult to do anything while transmitting
- or receiving a character at that speed but if you need a 'get info -
- do stuff - give response' loop then this is the way to go.
-
- 3. 22V10 and 20V10 GAL programming info
-
- A big zero so far. Does anyone have any information on the programming
- of these parts? I have a 22V10 from Lattice and programming it is high
- on my priority list.
-
- 4. Software
-
- I received suggestions to call National Semiconductor and get their
- demo OPAL Jr. software (which is the same software package in the
- Elector disk). Also there seem to be some source code copies of palasm
- out on the net. Any other suggestions greatly appriciated.
-
- 5. And Finally - a FLAME
-
- This is for the one person who suggested that I'm wasting my time and
- that I should just get the the Elecktor kit. I work on projects like
- this programmer because I am a hobbyist. This means:
-
- 1. Having understanding of what's going on is more important than
- the final result.
-
- 2. By having my own design and software I can expand or modify
- my design at any time. The Elector kit doesn't (and never will)
- do GALs bigger than 20V8.
-
- 3. By having my own design I can stretch the limits of the application.
- For example this programmer will be connected to a DECstation and
- can be migrated to any platform I have instead of just being stuck
- on a PC.
-
- The bottom line is that I'm not a sheep. I like to roll my own stuff and
- push projects in new a interesting directions. So give the "just follow
- the experts like sheep" line a break. Nothing ventured, nothing gained.
-
- Keep throwing suggestions (positive ones only please) my way,
-
- BAJ
- ---
- Another random extraction from the mental bit stream of...
- Byron A. Jeff - PhD student operating in parallel!
- Georgia Tech, Atlanta GA 30332 Internet: byron@cc.gatech.edu
-