Forum Discussion
Altera_Forum
Honored Contributor
Honored Contributorpulse generator (need help)
I want to generate 25Hz,50Hz,100Hz pulse signals!
The singal is bad when I use frequency division! Is there a better way to generate the signals? Thank you very much! --a friend from China!5 Replies
Altera_ForumThank you very much!
- Altera_Forum
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--- 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
Why the signal is bad with frequency division?
Do you use schematic or HDL code? - Altera_Forum
how are you dividing the signals? are you gating the clock?
you'd be better off using a PLL or clock enble signals
