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Altera_Forum's avatar
Altera_Forum
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14 years ago

Erratic ring counter

I have built a ring counter using D flip flops in an EMP3128ATC100-10 cpld. I am getting erratic results with clocking sometimes occurring on both rising and falling edges and sometimes no clocking a...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Yes, I had already looked for a Schmitt trigger and will incorporate if necessary. I'll see what else I can do to improve the rise time without needing to re-design the pcb first.

Thanks for your help