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From: karl@sugar.hackercorp.com (Karl Lehenbauer)
Newsgroups: comp.sys.amiga.audio,comp.sys.amiga.hardware
Subject: Re: Roland MPU-401 and the Amiga?
Message-ID: <1991Mar29.224454.6803@sugar.hackercorp.com>
Date: 29 Mar 91 22:44:54 GMT
References: <54447@inkwell.UUCP>
Organization: Sugar Land Unix -- Houston, TX
Lines: 21

In article <54447@inkwell.UUCP> lll@iris.brown.edu (Larry Larrivee) writes:
>Has anyone ever attempted to use this device with an Amiga?  I recently 
>found
>a source of these for dirt cheap; unfortunately, they come without 
>software or
>documentation.  All I have is a 4"x6"x1" box with some MIDI ports, 1/4" 
>jacks
>and what looks to be a RS-232 serial port.  

It's not a serial port on the back, it's a special parallel interface that
happens to use a DB-25 connector.  The MPU-401 has a small processor and
some timers inside; it offloads some of the functions required of a 
sequencer.

This was very useful back in the Apple II days.  The speed of modern
machines, and the MPU's 8-track limit, have made it such that, these
days, most of the sequencers that I know of (mostly Sequencer Plus Mark
III) just put it in "dumb UART" mode.
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