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Thread: XMC1000 TIP of the day: Software TRAP for CCU8

  1. #1
    Advanced Advanced Jackson is on a distinguished road
    Join Date
    Nov 2011

    XMC1000 TIP of the day: Software TRAP for CCU8

    TRAP function in the CCU8 allows the PWM output react on the state of an input pin.
    This functionality can be used to switch off the power devices if the TRAP input becomes active and the PWM output will return to the default (passive) state.
    However, it is unable to trigger TRAP function via software.
    If the PWM is turn off via the timer run bit, the PWM output will remain at the last known state instead of the passive state.
    So in order to implement software TRAP function, we can use the Multi channel Mode in POSIF module.
    Enable the Multi channel control on CCU8 (CC8yTC.MCMEx) and configured the POSIF to Stand-Alone Multi-Channel Mode (PCONF.FSEL = 0x02).
    Then by updating the Multi Channel Pattern (MCSM.MCMPS), the timer slice that connected to the multi channel mode will be trigger.
    For example, CCU80.MCI01 is refer to POSIF0.MOUT[0], so when multi channel pattern turn that output to LOW, the CCU80 output will go to passive state.

  2. #2
    Wlodek is on a distinguished road
    Join Date
    Oct 2014

    how can i do that for XMC4500 in DAVE ?


    it works on XMC4500 to

    best regards
    Last edited by Wlodek; May 19th, 2015 at 12:16 AM.

  3. #3
    Beginner Beginner fchen2 is on a distinguished road
    Join Date
    Oct 2017
    It works. I have to say it is a little complicated to do such configuration, going through the whole datasheet really time consuming.

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