Cheapo TI-99/4A GROM reader
This page belongs to Marcus
Comstedt and is reproduced here with his permission.
You may want to check to original at http://mc.pp.se/ti/cartreader.html
in case Marcus would have updated it, or provided new software.
Th.N.
Introduction
This is a simplistic device to read the contents of GROM only (one sided
PCB) Command Modules for the TI-99/4A using the parallel port of a standard
PC.
Parts needed:
-
One 2x18 pin female 2.54 mm card edge connector (you can use the narrow
end of an ISA connector)
-
One 25 pin male D-SUB connector for the parallel port
-
One 6 pin male Mini-DIN connector for the keyboard/mouse port (used for
power supply)
-
One EXO3 oscillator at 12.8MHz
-
One LMC7660 voltage inverter
-
Three 10µF electrolytic capacitors
-
One 4.7k? resistor
Blueprint
Postscript version suitable for printing
on A4 paper.
Software
Required software, for Solaris x86 or Linux
Marcus Comstedt
Last modified: Sun May 27 02:26:07 MEST 2001