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- Path: canopus.cc.umanitoba.ca!toliman!umcwikla
- From: umcwikla@cc.umanitoba.ca (Tom Cwikla)
- Newsgroups: comp.sys.cbm
- Subject: Re: C64 Electronics Projects
- Date: 3 Jan 96 21:33:26 GMT
- Organization: The University of Manitoba
- Message-ID: <umcwikla.820704806@toliman>
- References: <wiz-2012951502370001@17.32.67.13> <4bq1ru$6pc@usenet.srv.cis.pitt.edu> <4cbo04$7m@gameport.delphi.harz.de>
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-
- In <4cbo04$7m@gameport.delphi.harz.de> mauser@delphi.harz.de (Gerald Mauser) writes:
-
- >David M Holland (dmhst7+@pitt.edu) wrote:
- >: Patrick Fleming (wiz@apple.com) wrote:
- >: : Can anyone recommend a good book on C64 interfacing projects? I would like to
- >: : hook up something to the cartridge port for simple electronics control.
-
- >: (...) there are a lot of projects that use the user
-
- >: port (same on vic and c64) so its worth a look.
-
- >I personell use the user-Prot.
- >It's the most simple Prot for programming.
-
- It is simple, but it's also somewhat limited if you want to attach more than
- one device. I've used both the user port and expansion port for my projects.
- I built a board that plugs into the expansion port that has a variety of
- devices on it: Real-time clock, high speed A/D converter with range
- switching and 8-channel multiplexer, an extra CIA chip (two wasn't enough!),
- an EPROM socket, and an EPROM burner as well. The expansion port isn't
- really that hard to use. The Programmer's Reference Guide has enough
- information to build your own expansion port devices.
- Of course if all you need is a couple of general purpose I/O lines, then the
- user port is probably quicker. The user port also gives you access to all
- four timers in all of their modes, as well as both of the CIA serial ports
- so that's probably the thing to use if you need either of those two
- features.
-
- Now if only there was a source for the actual connectors that fit into
- either of these two ports, doing all this would be a lot easier.
-
- --Tom.
-