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Reading HP67 ROMs
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05-05-2022, 10:53 PM
Post: #3
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RE: Reading HP67 ROMs
Thanks for your reply, Tony!
I'll try to analyze the signals to see if I can understand them. My main problem here is that the calculators aren't working, but I'll try! By the way, do know which pins are inputs and outputs? I mean the Isa and data pins, in particular. Or do they change roles during operation? Well, I guess I can try turning the calculator on with and without the ACT and other chips to watch and deduce pin behavior, but any additional info is greatly appreciated! Many thanks, Eduardo |
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Reading HP67 ROMs - Marcovecchio - 05-05-2022, 01:50 AM
RE: Reading HP67 ROMs - teenix - 05-05-2022, 03:59 AM
RE: Reading HP67 ROMs - teenix - 05-12-2022, 05:06 AM
RE: Reading HP67 ROMs - Marcovecchio - 05-05-2022 10:53 PM
RE: Reading HP67 ROMs - teenix - 05-05-2022, 11:36 PM
RE: Reading HP67 ROMs - Marcovecchio - 05-06-2022, 01:51 AM
RE: Reading HP67 ROMs - teenix - 05-06-2022, 05:11 AM
RE: Reading HP67 ROMs - teenix - 05-07-2022, 12:41 AM
RE: Reading HP67 ROMs - Marcovecchio - 05-08-2022, 01:30 AM
RE: Reading HP67 ROMs - teenix - 05-08-2022, 02:34 AM
RE: Reading HP67 ROMs - Dreato - 05-12-2022, 04:28 PM
RE: Reading HP67 ROMs - Marcovecchio - 05-13-2022, 03:56 AM
RE: Reading HP67 ROMs - teenix - 05-13-2022, 04:58 AM
RE: Reading HP67 ROMs - teenix - 06-05-2022, 10:37 AM
RE: Reading HP67 ROMs - Marcovecchio - 06-10-2022, 08:50 AM
RE: Reading HP67 ROMs - teenix - 06-10-2022, 12:52 PM
RE: Reading HP67 ROMs - teenix - 06-12-2022, 08:13 AM
RE: Reading HP67 ROMs - Marcovecchio - 06-25-2022, 10:57 PM
RE: Reading HP67 ROMs - teenix - 06-26-2022, 06:38 AM
RE: Reading HP67 ROMs - teenix - 06-28-2022, 02:34 AM
RE: Reading HP67 ROMs - teenix - 06-29-2022, 02:06 AM
RE: Reading HP67 ROMs - teenix - 07-12-2022, 03:28 AM
RE: Reading HP67 ROMs - Marcovecchio - 07-14-2022, 11:11 AM
RE: Reading HP67 ROMs - teenix - 07-21-2022, 01:34 AM
RE: Reading HP67 ROMs - tangdfx - 07-21-2022, 02:36 AM
RE: Reading HP67 ROMs - teenix - 07-21-2022, 02:58 AM
RE: Reading HP67 ROMs - tangdfx - 07-21-2022, 03:19 AM
RE: Reading HP67 ROMs - teenix - 07-21-2022, 03:48 AM
RE: Reading HP67 ROMs - tangdfx - 07-21-2022, 04:02 AM
RE: Reading HP67 ROMs - teenix - 07-29-2022, 08:38 AM
RE: Reading HP67 ROMs - Paul Dale - 07-30-2022, 09:05 AM
RE: Reading HP67 ROMs - Thomas Klemm - 07-30-2022, 10:23 AM
RE: Reading HP67 ROMs - teenix - 08-08-2022, 03:39 AM
RE: Reading HP67 ROMs - teenix - 08-27-2022, 08:04 AM
RE: Reading HP67 ROMs - teenix - 08-28-2022, 05:26 AM
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