Aviom A-16CS - Manual (Page 77)

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MIDI System Exclusive
Implementation
version 1.00 for Aviom A-16R
1. Introduction and Overview
This document is designed to aid in the understanding of the A16R’s MIDI
System Exclusive (SysEx) implementation. MIDI SysEx support for the
A16R product includes messages that allow for uploading and downloading
of all sixteen system presets or the current active configuration also referred
to in this document as the current preset. Described in this document is
the implementation of these features. In order to utilize these features the
A16R may be interfaced to any MIDI management device such as a personal
computer with MIDI software or stand alone devices such as MIDI SysEx
recorders/sequencers.
1.1. Transmit Flow
Shown below is the basic transmit flow for the currently supported/
implemented MIDI system exclusive messages on the A16R.
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Figure 1 - MIDI Transmit Flow
1.2. Receive Flow
Shown below is the basic receive flow for the currently supported/implemented
MIDI system exclusive messages on the A-16R.
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�������������������
Figure 2 - MIDI Receive Flow
2. MIDI System Exclusive Packet Pieces
A MIDI SysEx packet can be thought of as a group or collection of bytes that
contain a start indicator referred to as the “SysEx Head”, “Message Data”
which may contain control or status information and a “SysEx Tail” which
terminates/ends the packet. Described below is an overview of a generic MIDI
SysEx packet structure.
SysEx Head Message Data SysEx Tail
Figure 3 - MIDI General Packet Structure
The specifics and mechanics of the various packet pieces are described in the
subsequent sections.