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CFabr1's avatar
CFabr1
Icon for New Contributor rankNew Contributor
3 years ago

LED circuit issue with CPLD and Quartus

Hi all, I'm trying to implementing under Quartus this simple LED circuit (based on two D flip-flops) using a +5V CPLD (EPM7032) As you can see, there are only three signals inputs to the ...
sstrell's avatar
sstrell
Icon for Super Contributor rankSuper Contributor
3 years ago

These are positive edge-triggered flip-flops so the fact that the "clocks" are normally held high is not going to give you accurate behavior. Perhaps you should be using the /Q outputs instead.