HP41C with Rp Pico attached
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06-22-2023, 11:31 AM
Post: #13
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RE: HP41C with Rp Pico attached
Hi,
Found some time and connected a Tiny2040 to the 41 with success. The Tiny2040 is small enough to fit in a small box I can analyze the bus, decode the display-instruction etc, all through an old module case and connector, so no need to open the 41 (so I'm missing the keyboard events). I have yet to get the driving of the ISA-port to work, to be able to emulate modules, but so far all good! (The yellow text is just a test of the 41 font, but the blue text just below is the copy of the actual 41 display, rest is just debug-info) Cheers, Thomas [35/45/55/65/67/97/80 21/25/29C 31E/32E/33E|C/34C/38E 41C|CV|CX 71B 10C/11C/12C/15C|CE/16C 32S|SII/42S 28C|S 48GX/49G/50G 35S 41X] |
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