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STRAXGEN.DOC
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1993-10-01
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+====================================+
| | #
| S T R A X G E N | #
| | #
+====================================+ #
#######################################
Generic output DAC modification program for
S C O P T R A X
by Chris S. Craig
PO Box 9051
St. John's
NF
A1A 2X3
CANADA
Documentation by Neil Johnson
2 Chapel Field
Dixter Road
Northiam
East Sussex
TN31 6PQ
UNITED KINGDOM
=======================================================
1. Introduction
STRAXGEN was written by Chris Craig to modify version 1.0 of
SCOPTRAX to enable it to send data to any PC I/O port. This
enables SCOPTRAX to play samples through all manner of home-brew
DAC cards, including the InterCard 1, as published in October and
November 1992 editions of Electronics Today International. This
design, by Neil Johnson, incorporates an audio DAC, ADC and two
digital interface ports.
STRAXGEN is distributed under certain conditions, outlined here.
STRAXGEN is Copyright (C) August 1993 Chris S. Craig
UNDER NO CIRCUMSTANCES SHOULD THE MODIFIED
SCOPTRAX.EXE FILE BE DISTRIBUTED. ONLY THE
ORIGINAL SCOPTRAX.ZIP FILE MAY BE DISTRIBUTED.
This code may be freely distributed provided that the
copyright notice is not removed and users are presented
with the above message.
Donation greatly appreciated (see SCOPTRAX.DOC for more
info.)
This documentation is written by Neil Johnson to facilitate the use
of STRAXGEN by users of the InterCard 1.
DISCLAIMER:
Neither the original author of STRAXGEN, Chris S. Craig, nor the author
of this documentation, Neil Johnson, are liable to anyone in any way
whatsoever for any damage or loss arising from the use or mis-use of
STRAXGEN.
2. Where to get SCOPTRAX
SCOPTRAX is available from the Public Domain Software Library, volume
number 3676. The Library is at the following address:
The Public Domain Software Library
Winscombe House
Beacon Road
Crowborough
Sussex
TN6 1UL
Tel: 0892-663298
3. How to use STRAXGEN
STRAXGEN will only operate on the version of SCOPTRAX to be found in
the current directory. If there is no version of SCOPTRAX to be found
STRAXGEN will not run and display an error message.
IMPORTANT: this version of STRAXGEN will only correctly modify version
1.0 of SCOPTRAX. If you have a later edition of SCOPTRAX
do not run this program. Irreparable damage to SCOPTRAX
will occur ! You have been warned.
To run STRAXGEN you simply type the name of the program followed by the
address, in hexadecimal, of the DAC card. In the case of the InterCard 1
this is the BASE ADDRESS. For example, if the InterCard 1 is at address
300 hex, you would enter as follows:
STRAXGEN 300
The version of SCOPTRAX in the current directory will be modified to
allow the use of the InterCard (or any other DAC card) for the playing
of samples.
To actually inform SCOPTRAX to use the DAC card at the address you have
specified simply choose the 'DAC at LPT1' option in the SOUND submenu.
Once selected, samples will be played through the InterCard 1.
Please note that this is a one-way conversion. Once SCOPTRAX.EXE has
been modified by STRAXGEN there is no way to reset the original
function of playing samples through the LPT1 port. This may be fixed
in the next version of SCOPTRAX.