On Sun, Feb 25, 2018 at 10:27 PM, Jim Brain <brain@jbrain.com> wrote: > On 2/25/2018 3:24 PM, Jim Brain wrote: >> >> If I look at the 6500 datasheet, I see that the PHI1/PHI2 on the 6502 >> trails the incoming PHI0 clock by some amount, but the amount is not defined >> in the datasheet. > > Scope trace shows a delay of ~17nS Are you feeding external clock to phi0 input of the 6502? If so, I think all should work. Unless the 6509 wants an inverted clock, i.e. with active phase on low cycle of the clock. F Message was sent through the cbm-hackers mailing listReceived on 2018-02-25 23:01:46
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