Forum Discussion
Altera_Forum
Honored Contributor
15 years agoHello,
many thanks for the upgrade infos. The notes concerning double frequency clock were not very helpful to me, but I know that the problem lies in my person because I don't understand VHDL very well and the MAXII was not the right decision for my project. Anyway, I was able to design a double frequency circuit based on my "old" digital-logic-knowledge as you can see in the appendix. It's basically a simplified PLL without VCO , but works fine and may be helpful for other people? I still have a small problem now: Generate a sector pulse like here: ____-----------_______________________________-----------_____ ----|>62.5 us<| ----|> ------------------- 625 us ---------------->| Sight from my "old" person , I would be able to fix this problem with 2 external NE555 timer chip ( within 2 hour soldering ) but this is not the manner like it should be. Has somebody an idea to realize this timing ? Many thanks and best regards, Reinhard