Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!samsung!think!snorkelwacker!ai-lab!jpexg
From: jpexg@wheaties.ai.mit.edu (John Purbrick)
Newsgroups: comp.sys.atari.st
Subject: Design for MIDI-to-RS485 translator
Message-ID: <5851@rice-chex.ai.mit.edu>
Date: 11 Jan 90 05:47:28 GMT
Reply-To: jpexg@wheaties.ai.mit.edu ()
Organization: The MIT AI Lab, Cambridge, MA
Lines: 9

I'm using the MIDI port to communicate with a network (only 2 so far) of
microprocessors (Intel 8031) using RS485 protocol. This is a two-wire-plus-
ground differential line setup using half-duplex mode (ie, the same bus is
used for bidirectional data, hence only one party can transmit at a time).

The circuit for the level translator is available if anyone wants it.

						John Purbrick
						jpexg@ai.mit.edu