First ePWM toggle action when counter equals zero and the action-qualifier is in toggle mode versus set mode?

Hi,

If I set the AQCTLA.bit.ZRO = AQ_SET in the code snippet below, then the PWM output goes to logic level high right after making TBCLKSYNC = 1, which is what I expected.

However, if I set the AQCTLA.bit.ZRO = AQ_TOGGLE, the PWM output remains low and only toggles high after the counter wraps around the TBPRD=30000.

How can I make it toggle low->high soon after enabling TBCLKSYNC?

How can I initialize the PWM output to high and then have it toggle high->low instead?  Can this condition be implemented before setting TBCLKSYNC = 1?

It appears that the event CTR = Zero is only seen by AQ_TOGGLE after the counter wraps around the first time while for AQ_SET it is seen right after enabling TBCLK.

Thanks.

EPwm1Regs.TBPRD = 30000;

EPwm1Regs.TBCTR = 0x0000;

EPwm1Regs.TBCTL.bit.CTRMODE = TB_COUNT_UP;

EPwm1Regs.AQCTLA.bit.ZRO = AQ_SET;                // Case 1: PWM output is high right after releasing the TBCLK

//EPwm1Regs.AQCTLA.bit.ZRO = AQ_TOGGLE;      // Case 2: PWM output toggles low->high only after TBCTR wraps around TBPRD=30000

SysCtrlRegs.PCLKCR0.bit.TBCLKSYNC = 1;