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using event attribute

 
 
eliascm eliascm is offline
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Join Date: Jan 2009
Posts: 42
 
      02-10-2009
I have the following code in a testbench

while not end_sim loop
if seconds_tp'event then
report integer'image(TO_INTEGER(unsigned(seconds_tp)));
end if;
wait for 100 ns;
end loop;
wait;

end_sim is false until the end of the simulation.

seconds_tp is a std_logic_vector that starts at 0 and increments by 1 every simulated second.

The idea is to display the value of simulated seconds elapsed while the simulation is running.

When the simulation is running no value for seconds_tp is displayed.
However, seconds_tp does display correctly on the waveform viewer when the simulation is stopped.

What am I missing here?
 
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