Forum Discussion

HYl's avatar
HYl
Icon for New Contributor rankNew Contributor
5 years ago

change the frequency(uClk_usr uClk_usrDiv2)

I am working with Acceleration Stack Version 1.1 . How to change the frequency(uClk_usr uClk_usrDiv2) on the board? Does the uClk_userDiv2 have to be at half of uClk_user? I want uClk_usr to be 300M,...
JohnT_Altera's avatar
JohnT_Altera
Icon for Regular Contributor rankRegular Contributor
5 years ago

Hi,

For version 1.1, the uClk_usrDiv2 will always be half of uClk_usr frequency which is why you are observing 300Mhz and 150Mhz respectively. If you would like to set uClk_usrDiv2 to 100Mhz then I would recommend you to update your DCP version to 1.2.

  • HYl's avatar
    HYl
    Icon for New Contributor rankNew Contributor
    5 years ago
    I am wondering why there is a frequency relationship limitation between uClk_usr and uClk_usrDiv2.Can i remove the limitation? Is there someting special?