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From: dvlsan@apollon.cs.umu.se (Stefan Andersson)
Newsgroups: comp.sys.ibm.pc.hardware
Subject: Re: MIDI
Keywords: Centronics, anyone ?
Message-ID: <1990Nov28.100043.5535@cs.umu.se>
Date: 28 Nov 90 10:00:43 GMT
Sender: news@cs.umu.se (News Administrator)
Organization: Dep. of Info.Proc, Umea Univ., Sweden
Lines: 20
Originator: dvlsan@apollon.cs.umu.se


There have been some talk about RS232 <-> MIDI interfacing lately.  To
summarize things so far, the only way to go seems to be replacing the serial
board crystal, in order to get the correct baudrate (31.25 Kbps).  There has
been some indications that it might be possible to do black magic programming
on some serial boards to do this without hardware changes, but, no offense,
I'll have to see that in action to belive it.  However, an idea that strikes
me is: has anybody considered hooking up a MIDI interface to the printer port?
If memory serves, there are enough control lines to get four bit input,
and output is simple enough.  With a bit of luck, the right clock and
some TTL circuits to go serial at a suitable speed, it just might work. 
How does it sound ?

/Stefan

DISCLAIMER: 
	1/	I don't know if an average Centronics is fast enough to handle 
		this without choking.  I have no hard facts to support my idea 
		at the moment.
	2/	English is not my native language, I can imagine it shows :-)