Hi all,
I recently acquired an MTEC 1230/28 RTC without coprocessor. I bought one yesterday, PLCC package, 40MHz. I plugged the coprocessor trying 14MHz and 28 MHz configurations, but the Amiga 1200 won't even boot. From what I can understand, there is no need for an oscillator clock if one goes by one of those frequencies, so is it possible that the 40MHz FPU doesn't like being underclocked? Do I need a 40 MHz oscillator?
Thanks,
Antonio
I wouldnt think so? Is the chip in the right way around - pin 1 aligned up with the notch etc? Is it possible there's also a jumper you need to plug as well? Some expansions also have a seperate crystal socket for the coprocessor - is it possible your board has that socket and its empty?
