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time between two events

pravintavagad

Hi all is there any way by which i can measure time between two events (Specman e code)??

e.g. time between two resets

  • you have sys.time and sys.realtime. You can log the time value when an event happens (using for example and on block) and next time  you can calculate the delta.

    -hannes

  • Between two different events, or two occurences of the same event? Here's an example for the latter case, I'm sure you can figure out how to modify it for the former.

     

    extend sys {
  !last_time : time;
  event reset;
  on reset {
    var delta := last_time - sys.time;
    print delta;
    last_time = sys.time;
  };
};
  • I have start and end signals in my design. Start is asserted when burst starts and end is asserted when burst ends.

    My task is to measure the time between start and end signals. I am emmiting events on start and end. so how can i measure time between thses two events?? ( i have to continuously do this in my testbench to calculate latency)

  • Well, modify my example by having two "on" blocks, one for the start event and one for the end event.

    Sample the time in the start block, and compute the delta in the end block.

     

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