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TIMER_A PROBLEM

FU WEN
Prodigy 60 points

I try to use timer_A to generate a PWM. And I choose Timer_A's OUTMOD7 to do this, when timer count to CCR1, it reset,my problem is ,which point is reset? is inside which register?How can I read and use the info to control other parts?

Thx.

  • 0
    Guru 58965 points

    You said you choose Timer_A's OUTMOD7 to do this. Why? Which point do you want to reset? Is that what OUTMOD7 does? If so, OUTMOD7 is the right choice. If not, you should not have chosen OUTMOD7.

     

     

  • 0 in reply to old_cow_yellow
    Prodigy 60 points

     So u mean I should select the point to be set/reset, but how to select? using PxSEL ? Sorry I'm a completely green hand..

  • 0 in reply to FU WEN
    Guru 227245 points

    In a double-action output mode, the first action happens when TAR counts to the value in TACCRx, the second action happens when TAR counts to TACCR0 (timer in cont mode) or when it rolls over to 0 one tick after reaching TACCR0 (timer in up mode).

    PxSEL just activates teh output of the CCRx unit to a port pin (but the generated signal is available internally without that, e.g. for triggering the ADC by a timer signal)

    FU WEN said:
    I'm a completely green hand

    All of us once were :)

     

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