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Altera_Forum
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16 years ago

Arria II GX refclk pins

Hi there, Is there any assignment I need to set when I use the refclk pins as clk inputs? I am using EP2AGX65CU17C6 device. We connected a differential clock input to pin M19 and M20, which is ...
Altera_Forum's avatar
Altera_Forum
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16 years ago

I removed the the signal from my top level since I am not using it anywhere in the design, then the problem went away. This leads me to think that, if I am driving the ref_clk of the altgxb ip from an internal PLL, I shouldn't be assigning any signal to the dedicated ref_clk pin.

Thank you all for your replies!