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PWM Outputs on K60 Tower

Question asked by Robert Richner on Aug 22, 2011
Latest reply on Aug 24, 2011 by Robert Richner

I've been trying to configure the FTM0 Flex Timer to generate centered aligned PWM. I have followed several examples I've found on the internet even on here on the forum however, I cannot get channel 0 (PORTC PTC1) to output the pulse wave. I have double, triple and quadruple checked all the register configurations and they seem correct. I've pasted my code below:

 

    SIM_BASE_PTR->SCGC5 |= SIM_SCGC5_PORTC_MASK;
    SIM_BASE_PTR->SCGC6 |= SIM_SCGC6_FTM0_MASK;

   

    PORTC_BASE_PTR->PCR[1] = PORT_PCR_MUX(4) | PORT_PCR_DSE_MASK;
    temp = FTM0_BASE_PTR->FMS;
    FTM0_BASE_PTR->MODE |= FTM_MODE_WPDIS_MASK;
    FTM0_BASE_PTR->MODE &= ~FTM_MODE_FTMEN_MASK;
    FTM0_BASE_PTR->QDCTRL &= ~FTM_QDCTRL_QUADEN_MASK;
    FTM0_BASE_PTR->CNT = 0;
    FTM0_BASE_PTR->MOD = 4000;
    FTM0_BASE_PTR->CNTIN = 0;
    FTM0_C0SC = FTM_CnSC_ELSA_MASK;
    FTM0_C0V = 2000;
    FTM0_BASE_PTR->SC = FTM_SC_CPWMS_MASK | FTM_SC_CLKS(1);

 

What am I missing that is preventing the PWM signal from coming out on PWM0?

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