Julian Perry <email@example.com> writes: > Jim Drew raised the issue that the 1541 board timing had a problem > with fast SRAM, and that 120ns was about the fastest that worked > without corruptions. > ( http://www.lemon64.com/forum/viewtopic.php?t=41396 ) I suspect he is wrong about that and/or the control circuit for his RAM was badly designed. Two of my 1541s (an older one with PCB 251830 and a 1541-II) have no problems accessing a 70ns 62256 SRAM chip. -ik Message was sent through the cbm-hackers mailing listReceived on 2013-06-18 21:00:08
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