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Thread: GTM: TOM: Two independant Phase shift output from TOM channels

  1. #1
    Beginner Beginner arshadziyad is on a distinguished road
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    GTM: TOM: Two independant Phase shift output from TOM channels

    Hello,

    My question is as follows,

    Is it possible to generate two indepdendant phase shift outputs from channel 1 and channel 2 w.r.t to master output signal on channel 0 in the same TOM unit.

    All the outputs should have duty cycle and period and difference is in different phase shift (phase 1) of channel1 and (phase 2) channel 2 w.r.t to master signal on channel 0.

    Resource allocation is not a hardwired, it can be changed for acheiving the desired outputs.

    Best Regards,
    Arshad Ziyad

  2. #2
    New Member New Member CookieMonster112 is on a distinguished road
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    Quote Originally Posted by arshadziyad View Post
    Is it possible to generate two indepdendant phase shift outputs from channel 1 and channel 2 w.r.t to master output signal on channel 0 in the same TOM unit.
    All the outputs should have duty cycle and period and difference is in different phase shift (phase 1) of channel1 and (phase 2) channel 2 w.r.t to master signal on channel 0.
    Yes, it is possible to use one timer as master and others as slaves. The period would be synchronized by using the reset signal of the master for the slaves as well.
    You need to calculate the phase shift in software, either on CPU or maybe also in MCS.
    One idea could be to set the PWM channels to inactive LOW via SL bit and configure the required duty cycle (for the HIGH duration).
    The output will be set to LOW again after the timer has reached it's maximum and the reset from master timer restarts the PWM channel.

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