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antwens

wait for 'delay' cycles

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a simple question on wait,

in driver run task, want to wait for item.delay clock cycles before moving on,

 

 

may I know below ways are both good,

repeat(<item>.delay) @ (posedge clk)

assert <signal>

 

or

 

## (item.delay)

 

thanks

 

 

 

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Assuming your driver is a class inside a package, and the default clocking block is in an interface, you cannot use ## delays - you must use repeat(item.delay) @(posedge clk). ## only uses the default clocking from the module/interface it's used from, making it a fairly useless construct. And there is absolutely no performance difference between the two.

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