Thread: Mk14 vdu
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Old 10th Nov 2020, 9:16 pm   #876
SiriusHardware
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Join Date: Aug 2011
Location: Newcastle, Tyne and Wear, UK.
Posts: 11,485
Default Re: Mk14 vdu

They must be delaying the leading and falling edges of A8-A11. I'll have a look on a scope when I am sure that I have the final values. I would still prefer to fix this in firmware eventually because the optimum capacitor values may vary, depending on what there is on the high address lines. Systems which don't have extra memory may need a different set of values, we want a 'one fits all' solution really.
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