Critical Warning (332168): The following clock transfers have no clock uncertainty assignment. For more accurate results, apply clock uncertainty assignments or use the derive_clock_uncertainty command.
Critical Warning (332169): From altera_reserved_tck (Rise) to altera_reserved_tck (Rise) (setup and hold)
Critical Warning (332169): From altera_reserved_tck (Rise) to altera_reserved_tck (Fall) (setup and hold)
Critical Warning (332169): From altera_reserved_tck (Fall) to altera_reserved_tck (Fall) (setup and hold)
在进行FPGA学习时，求解决方法