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HDele
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6 years ago

Atari XL nostalgia: delayed output line from 1.77MHz clock input

I rediscovered my old Atari 600XL in the attic. The resurrection failed because the "delay line" (a chip that inputs 1.77 MHz and outputs 5 clock signals at the same frequency in different delays) did not pass the test of time.

The 5 output pins delay the input clock by 25, 190, 260, 315, 440 ns.

Tolerances of 20ns should be allowed.

How can I realize a simulation using my DE0-nano (50Mhz)?

Thanks for support.

Holger