shaiko
Advanced Member level 5
Hello,
My Cyclone V design has 2 reference clock inputs.
I want to be able to manually switch between them during runtime.
I know that the ALTERA_PLL megafunction can be configured to receive 2 input clocks. I understand that it also provides a manual switchover signal to select between the 2.
I also know that Altera provides the ALTCLKCTRL megafunction - which if I understand correctly can serve as a clock MUX.
Which one should I use ? ALTERA_PLL with 2 inputs or ALTCLKCTRL ?
My Cyclone V design has 2 reference clock inputs.
I want to be able to manually switch between them during runtime.
I know that the ALTERA_PLL megafunction can be configured to receive 2 input clocks. I understand that it also provides a manual switchover signal to select between the 2.
I also know that Altera provides the ALTCLKCTRL megafunction - which if I understand correctly can serve as a clock MUX.
Which one should I use ? ALTERA_PLL with 2 inputs or ALTCLKCTRL ?