MultiChannel Serdes on CycloneIV GX problems

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MultiChannel Serdes on CycloneIV GX problems

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Hi all,

I met a problem about multichannel(> 4 ch) serdes design on CycloneIV GX fpga.the generated ALT_GX megacore's source file include a 2-bit width pll_iclk signal,so I connect the 2-bit signal to 2 pins.but,after compile,I found that QuartusII warning says:

Warning: Design contains 1 input pin(s) that do not drive logic

Warning (15610): No output dependent on input pin "ref_clk[1]"

I'v connect eight data generate module and a alt_reconfig module to the alt_gx module ,so I think maybe somethins wrong?

thx

I attached the test project,hope somebody can help me.

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