> From more experiments, I found a clue.
> A R_O_M_ cartridge is not accessed. So my intermediate conclusion is
> that CS1/2/12 signal(s) is/are not functional (memory mapper cartridge
> works!). Maybe the IDE interface uses any of those signals...?
Yes, the IDE-interface uses memory-mapped I/O, and not the I/O ports like other
devices. So if ROMs don't work, the IDE-interface won't work either. And even if
it used 'normal' I/O ports, it still wouldn't have worked because the software
drivers are also in ROM.
So I suggest you get your MSX fixed...
But!!! I know how you feel. (does that help?)
~Grauw
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