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Altera_Forum
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13 years ago

Signal A lag signal B

Hi, I am a newbie to Altera CPLD. I have a signal A and it's compliment signal B. I would want signal B to always lag 1us w.r.t signal A at the rising edge. And signal A lags signal B by...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

To accomplish this, signal A must be periodic (or should follow a known pattern). i.e. you have to know when the falling edge of A will happen in advance. If signal A is not periodic, you cannot predict when it will fall and therefore you cannot make B fall before A falls.

In addition to this, you will need a clock so you can sample signal A.