Forum Discussion
Chris039
Occasional Contributor
3 years agoHow to make sure clocks are in phase?
Hi,
I have two clock sources, both with 100Mhz. How to make sure that the clock are in phase?
Data from register A with clock A to register B with clock B.
Do I need to set any SDC or Quart...
- 3 years ago
Best way is to source both clocks from the same PLL. You don't say where these clocks are coming from. Feed one into a PLL and then create two mirrored outputs.
Chris039
Occasional Contributor
3 years agoIf they they cannot be feed into one PLL , is it possible to align two clock source with same frequency ?
I have another question, I have one pair coreclkout with 125Mhz and one input clock source with 100Mhz , how do I constrain the sdc, the latch clk 100Mhz could latch the data a few cycle later.