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MRenn's avatar
MRenn
Icon for New Contributor rankNew Contributor
6 years ago

Timing violation with Altera GPIO in DDR mode

I have a setup violation at the register after the input register. The input register is constrained as described in AN433. set_input_delay -add_delay -clock virt_adc_clk -min -0.6 [get...
KhaiChein_Y_Intel's avatar
KhaiChein_Y_Intel
Icon for Regular Contributor rankRegular Contributor
6 years ago

Hi,

For design with frequency higher than 200MHz, you have to use PhyLite; and you have to assign a dedicated clock path to the IOPLL.

Thanks.