HP Forum Archive 05

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41C Software Library Message #1 Posted by Mark Bowerman on 10 Apr 2001, 8:58 p.m. Has anyone found a way to upload the RAW/DAT files in the software library to the ttcalc HP41C Emulator?

Re: 41C Software Library Message #2 Posted by Dean Lampman on 20 Apr 2001, 10:05 p.m., in response to message #1 by Mark Bowerman YES .. we modified a card reader and put the 2 ttl outputs on parallel (LPT1:) input pins. THEN wrote a program that monitors each pin and reads both each time one changes state. This is writen to an .txt file where we use visual basic to change it. PS we can read HP 65 cards on the HP41 card reader and then print flow charts and source listings. ALSO. even when the 41 has a read error we can get all the data that is readable (HP41 wont load because of crc error)

Card Reader Mods Message #3 Posted by Steve (Australia) on 21 Apr 2001, 3:33 a.m., in response to message #2 by Dean Lampman Want to post more details? I'm interested!

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