Counter that starts on demand

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cyberdyne
cyberdyne 2011-6-15
Hi,
How can I build a counter that starts to count from 0 only after a specific start signal and stops after an other signal (by simulink) ?

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回答（1 个）

Kaustubha Govind
Kaustubha Govind 2011-6-16
Perhaps you could use the Counter Free-Running block inside an Enabled Subsystem and construct the enable signals based on your other two signals?
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cyberdyne
cyberdyne 2011-6-16
But in this way it counts as simulation time and returns the final count when it is enable, is it? I need that it starts at enable signal.
Kaustubha Govind
Kaustubha Govind 2011-6-16
Are you saying that the subsystem starts executing at the beginning of simulation? No - it depends on whenever the enable signals goes active. So you can construct your enable signal such that the counter only executes for the duration that you want it to.

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