Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Clock management in Cyclone III

Hey!

I want to clock my cyclone3 either with an 150MHz oscillator or an external clocksignal from an signalgenerator. Additional, the selected clocksource should send to an outputpin where it could be measured. But i don't understant to use the altclkctrl megafunction in quartusII. Have i to use one for the both inputs (as an mux) an one for the outputclock? Or isn't it possible to solve?

Thank you for your relpies and sorry for my bad english ;)

1 Reply

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    13 years ago

    Hi. Use one clock buffer as mux for inputs and route output through any clock pin. It should work.