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signal transmission problems of CDC check

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Hi:

  Reg 2 has two clocks available, which one is used is determined by the a signal.I want to do a cross-clock domain path analysis from reg 1 to reg 2 When reg 2 uses clk 1,and use “check_cdc -signal_config -add_constant {{a 1'b0}}” could to set a to zero , But this value will not be passed to b(Q port of reg 0), Jaspergold will recognize that reg 1 and reg 2 are in different clock domains,But in fact reg 1 and reg 2 are in the same clock domain

  How should I modify the jaspergold script?

thank you!


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