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m7kp-x48.msg
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1984-08-04
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1KB
Date: Sunday, 29 July 1984
From: Eric Stork
To: Keith Petersen
Re: MDM7 overlay for Kaypro allows 4800 baud
I have modified M7KP-2.ASM in several ways that serve my needs.
Others may have similar needs, and may find the revised file
(M7KP-X48.ASM) useful.
The primary purpose of the mod is to facilitate the direct 4800
baud (i.e., RS-232 to RS-232, without phone lines) transfer of
files to and from KAYPROs. I find that very useful -- I do some
work on the Kaypro, or my subcontractors do, and then I can
upload to my S-100 and continue to process the data into a single
report.
This can easily be done with three wires. I explain in the file
how to do it, including a diagram for a simple cross-over switch
to match the other computer's RS-232 configuration (I installed
such a switch into the RS-232 connector itself).
But most importantly, the file is set up so that by saying YES or
NO to two equates, one can also assemble it for normal modem
operation, and one can set it up to run off the KP-n-84's serial
PRINTER port. That is useful if you do not want to unplug your
regular modem whenever you want to transfer a file direct at 4800
baud.
Eric Stork