Restoring a HP9830B calculator.
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10-18-2014, 06:29 AM
Post: #37
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RE: Restoring a HP9830B calculator.
(07-27-2014 05:49 PM)Tony Duell Wrote: The tape cassette you have is the system programs for the disk system (the part number of the HP9830 'cable' is HP11273, and this number is used for associated things like the ROM cartridge and tape). I'm not 100% certain, but it appears to me that the two 11273 tape images provided with the emulator may be corrupt. I've posted a question in the emulator project forum about that: http://sourceforge.net/p/hp9800e/discuss.../f2bf4531/ It might still be desirable to come up with an independent image of MattisLind's cassette. I haven't yet tried to play a 9830-written tape in an audio player, so I'm not sure whether any reasonable results could be obtained that way. I'm considering writing a binary program that can dump a tape out the printer interface. Since the printer interface is an 8-bit wide TTL interface, it should be easily connected to a PC using an FT245 or FT2232 based USB-parallel module, though the mating connector for the 9830 printer interface is rather pricey. I don't have a 11205A serial interface, or I'd use that. |
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