Subject: Re: MIDI
To: Bill Sommerfeld <sommerfeld@orchard.arlington.ma.us>
From: Ted Lemon <mellon@hoffman.vix.com>
List: tech-kern
Date: 08/06/1998 10:52:31
> I vaguely recall (from building one of them for a digital design class
> about 10 years ago) that just need to run a fairly-standard UART at a
> strange baud rate (possibly requiring a different crystal), and then
> wire in an optoisolator between the midi port and the UART.  It seems
> like something you could do with minor hardware mods to a standard PC
> serial card if you were so inclined.  the code to drive teh uart would
> likely end up unchanged....

Yup.   I have a copy of the MIDI 1.0 spec, which includes a circuit
diagram.   It's probably possible to tweak the clock on a 16550 to
come close enough to the MIDI data rate that it'll work (but possibly
I'm being naive).

			       _MelloN_