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Switch version have some compile errors

FZhao12
Partner
252 Views

Error(18694): The reference clock on PLL "u_gmax2500|u_lvds_dpa_x16|lvds_0|core|arch_inst|internal_pll.pll_inst|altera_lvds_core20_iopll", which feeds an Altera LVDS SERDES IP instance, is not driven by a dedicated reference clock pin from the same bank. Use a dedicated reference clock pin to guarantee meeting the LVDS SERDES IP max data rate specification.

 

之前17.2编译没问题的,现在换成了19.4报这个错误

这个参考时钟输入是来自于另一个PLL的输出486e9e4ce76f06b0c755523988abfe6.png

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2 Replies
JonWay_C_Intel
Employee
200 Views

Hi @FZhao12​  You will need to assign it to a dedicated clock input pin on the same bank. I remember that newer version will block you from using IO pin as clock input to avoid your LVDS SERDES not performing up to specification.

Hope this answers your questions.

FZhao12
Partner
200 Views

thanks ​There are no other questions for the moment

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