Forum Discussion

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

is that ok if nios core and sdram use different frequency clk?

hi, everyone

i that ok if nios core and sdram ue different frequency clk?

what if sdram clk frequency larger than nios core frequency?

what if sdram clk frequency smaller than nios core freqencty?

1 Reply

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

    It will work in the sense that your software will execute and be able to access SDRAM. Qsys will automatically take care of generating the necessary adaptation logic.

    However, if you care about performance, you will want to insert an Avalon-MM Clock Crossing bridge in between the NIOS and the SDRAM.