Forum Discussion
5 Replies
- Altera_Forum
Honored Contributor
how are you dividing the signals? are you gating the clock?
you'd be better off using a PLL or clock enble signals - Altera_Forum
Honored Contributor
Why the signal is bad with frequency division?
Do you use schematic or HDL code? - Altera_Forum
Honored Contributor
--- Quote Start --- Why the signal is bad with frequency division? Do you use schematic or HDL code? --- Quote End --- i use verilog ,the square wave contains lots of high frequency waves! i also use PLL! - Altera_Forum
Honored Contributor
Do you see the high frequency glitches experimentally?
If yes, did your logic analyzer sample your output synchronously? If not sampling synchronously, it is normal that you see glitches. Remember that you only need that the outputs are stable and have the proper values one setup time before the next active clock edge. - Altera_Forum
Honored Contributor
Thank you very much!