Forum Discussion
Altera_Forum
Honored Contributor
13 years agoNew bie on timing constraints
Hello Experts, I have been new in Altera & Quartus. I am trying to understand the need for constraints like 'set_clock_latency' , 'set_clock_uncertainity' in FPGA's. For me these constr...
Altera_Forum
Honored Contributor
13 years agoIn summary, most of the time, yes.
But if your design has multiple related clocks coming into the FPGA, you'll probably need to use use set_clock_latency to model that. If you have a high jitter clock and can't afford to use a PLL to filter it, you should also use it. Those are rare situations; but it's best to know they exist.