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- Newsgroups: comp.sys.atari.st.tech
- Path: sparky!uunet!utcsri!utgpu!gbcusg
- From: gbcusg@gpu.utcs.utoronto.ca (I. Barnett)
- Subject: Re: The ST parallel (printer) port
- Message-ID: <BuKrqt.30s@gpu.utcs.utoronto.ca>
- Keywords: printer parallel input output ports In Abacus's _Atari_ST_Internals_, it is mentioned that the ST can both
- Organization: UTCS Public Access
- References: <BuGEEz.F0@world.std.com>
- Date: Mon, 14 Sep 1992 15:44:52 GMT
- Lines: 28
-
- In article <BuGEEz.F0@world.std.com> mgm@world.std.com (michael g moncur) writes:
- >send and receive data through the parallel port. Can anyone confirm that
- >the parallel port can be used as input? Someone once told me that the
- >PC's parallel port can do both input and output (which I know is true) but
- >the ST can't... And Abacus has been known to stretch the truth
- >occasionally. thoughts?
- >
- > (I'm building an EPROM programmer that will be controlled by an ST
- >via the parallel port, and a "read" option would be nice...)
- >
- > Also, what would I use to read the printer port? An example in C would
- >be greatly appreciated.
- >
- > Michael Moncur
- > mgm@world.std.com (preferred)
- > sysop@only_bbs.via.mind.org (alternate)
- >
- >
-
- To use the parallel port for both input and output, you need a special cable.
- This cable has the data and status/control lines crossed. This way you send
- data using the data lines and receive data on the status lines. For a
- really cool article on this subject, see this month's "C Users Journal",
- September, 1992.
-
- Darren King, GBC, Toronto...email :: gbcusg@gpu.utcs.utoronto.ca
-
-
-