Critical Warning: Synopsys Design Constraints File file notfound: 'CMTT.sdc'. A Synopsys Design Cons

在使用quartus ii进行FPGA开发时，遇到如下警告信息： Critical Warning: Synopsys Design Constraints File file notfound: 'CMTT.sdc'. A Synopsys Design Constraints File is requiredby the TimeQuest Timing Analyzer to get pro

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