Hallo Didier, As promised: http://www.baltissen.org/images/z80card.jpg The unpopulated socket is meant for a 6502. As the you can see there is no EPROM onboard. The unpopulated 24 pins socket is NOT meant for an ERPOM. Pin 1 and 3 are connected to ground, pin 12 isn't. Pin 2 is connected to +5V, pin 24 isn't. I have no idea at all what could fit there. The Z80 communicates with the 6502 through the 6821/PIO combination. And even there are anomalies; the pins are connected to each other in a weird way (or I did something wrong). That rules out that the Z80 could address the $A000 expansion for example. -- ___ / __|__ / / |_/ Groetjes, Ruud Baltissen \ \__|_\ \___| http://Ruud.C64.org Message was sent through the cbm-hackers mailing listReceived on 2009-11-17 18:00:08
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