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Problem in Timer

Divya Chinnan

Hi,

I am using lpc1768. By using Timer, i have generated a square wave with time period of 16ms. The ON period should be 1ms and OFF period should be 15ms. I used two match registers MR0 and MR1. I done with MR0 for OFF period and MR1 for ON period. But am getting the signal as 15ms as ON period and 1ms as OFF period. Plz suggest some solutions.

Thank You

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  • 0 in reply to Divya Chinnan

    And that was why I explicitly wondered why you played with two match registers while still configuring the timer to reset on every match making it impossible to reach any second match value.

    So next thing - are you aware that if you use the match output pins, then you can have the timer drive these pins with zero ISR involved? And zero jitter from interrupt response time or varying code paths of any code sequences?

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  • 0 in reply to Divya Chinnan

    And that was why I explicitly wondered why you played with two match registers while still configuring the timer to reset on every match making it impossible to reach any second match value.

    So next thing - are you aware that if you use the match output pins, then you can have the timer drive these pins with zero ISR involved? And zero jitter from interrupt response time or varying code paths of any code sequences?

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