> On April 8, 2013 at 1:54 PM Michał Pleban <email@example.com> wrote: > > > Hello! > > Jim Brain wrote: > > > I still think your idea is fine, just just need to isolate the ADDR and > > DATA bus of the ROM from the PCB socket while you are updating it. I > > think the PETVet does something similar, though it's doing it on the CPU > > socket, not the ROM socket. > > Yes of course. But if I need additional chips to isolate the buses, it > will be easier to use a Flash chip instead of SRAM, and make the 6502 > update it with data pulled from the SD card... Well, if the additional HW is not too much, I'm happy to add it to ROM-el. People have asked for such a capability many times. I think I ran into problems finding the correct select logic, as /OE and /CS on the ROMs are not active on a write cycle to those areas of memory. Jim > > Regards, > Michau. > > > Message was sent through the cbm-hackers mailing list Message was sent through the cbm-hackers mailing listReceived on 2013-04-08 19:00:04
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