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Altera_Forum's avatar
Altera_Forum
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8 years ago

Can We Specify Cut Timing Path Along With The Code?

Hello,

I have a toggle synchronizer like below and want to exclude the domain crossing register transfer ce_t1 <= ce_toggle from timing analysis. is there any way to do it automatically, e.g. by a synthesis attribute or a script, without picking up individual code instances after synthesis?

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  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    8 years ago

    Something like 

    attribute altera_attribute : string;
attribute altera_attribute of rtl : architecture is 
	"-name SDC_STATEMENT ""set_false_path -to "";" &
	"-name SDC_STATEMENT ""set_false_path -to """;