Generate square wave form for OMAP L138 LCDK

Dear All,

We would like to generate the following square (or rectangular) wave form using OMAP L138 LCDK:

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We have previously tried ehrPWM module. Using this module we could generate the square wave, however, we could not find any way to create the 1.9 seconds delay (as shown above). Is there any method that you could recommend?

Thank you