15 Aug
2014
15 Aug
'14
3:48 p.m.
I and others have been looking for a 98228A ROM for years, without luck. If you do manage
to find one, please consider making it available to have the contents of the ROM read out
so we can build new ROM modules! I'd love to use my 9885M with my 9825T. Thanks.
16 Aug
16 Aug
9:12 a.m.
I and others have been looking for a
98228A ROM for years, without luck.? If you do manage
to find one, please consider making it available to have the
contents of the ROM read out so we can build new ROM
modules!? I'd love to use my 9885M with my 9825T.?
What would be involved with imaging a module? I've
never cracked on open before, or is there a way to read
its contents from the 9825 itself?
BLS
3:21 p.m.
I and others have been looking for a 98228A ROM for years, without
luck. If you do manage to find one, please consider making it available
to have the contents of the ROM read out so we can build new ROM
modules! I'd love to use my 9885M with my 9825T . Thanks.
Be warend that the 98228 is not jsut a ROM. There a bit of logic in there
to suppor bank switching. I think it would be possible to copy it (it's a
few TTL ICs, I can't rememebr if there's a PROM amongst them for address
decoding, I do have the schematic...). But you cna't jsut wire up an
EPROM and expect it to work.
-tony
3780
days inactive
3781
days old
2 comments
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participants (3)
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ard＠p850ug1.demon.co.uk -
blstuart＠bellsouth.net -
cruff＠ruffspot.net