[参考译文] LAUNCHXL-F280049C：ePWM 周期加载计数通过 SVM 的 CMPB 失败、死区模式2

//*****************************************************************************
//
//! Values that can be passed to EPWM_setDeadBandDelayPolarity(),
//! EPWM_setDeadBandDelayMode() as the \e delayMode parameter.
//
//*****************************************************************************
typedef enum
{
    EPWM_DB_RED = 1, //!< DB RED (Rising Edge Delay) mode
    EPWM_DB_FED = 0, //!< DB FED (Falling Edge Delay) mode
	EPWM_DB_AHC = 1, //!< DB mode AH is Complementary
	EPWM_DB_ALC = 0  //!< DB mode AL is Complementary
} EPWM_DeadBandDelayMode;

//*****************************************************************************
//
//! Values that can be passed to EPWM_setDeadBandDelayPolarity as the
//! \e polarity parameter.
//
//*****************************************************************************
typedef enum
{
    EPWM_DB_POLARITY_ACTIVE_HIGH = 0, //!< DB polarity is not inverted
    EPWM_DB_POLARITY_ACTIVE_LOW  = 1,  //!< DB polarity is inverted
	EPWM_DB_POLARITY_ACTIVE_HIGH_COMPLMNT = 2, //!< DB polarity is High Complementary
	EPWM_DB_POLARITY_ACTIVE_LOW_COMPLMNT = 1 //!< DB polarity is Low Complementary

} EPWM_DeadBandPolarity;

        // setup the Counter-Compare Control Register (CMPCTL)
        EPWM_setCounterCompareShadowLoadMode(obj->pwmHandle[cnt],
                                             EPWM_COUNTER_COMPARE_B,
                                             EPWM_COMP_LOAD_ON_CNTR_ZERO);
                                             
        // setup the Action-Qualifier Output B Register (AQCTLB)
        EPWM_setActionQualifierAction(obj->pwmHandle[cnt],
                                      EPWM_AQ_OUTPUT_B,
                                      EPWM_AQ_OUTPUT_HIGH,
                                      EPWM_AQ_OUTPUT_ON_TIMEBASE_UP_CMPB);
		//
        EPWM_setActionQualifierAction(obj->pwmHandle[cnt],
                                      EPWM_AQ_OUTPUT_B,
                                      EPWM_AQ_OUTPUT_LOW,
                                      EPWM_AQ_OUTPUT_ON_TIMEBASE_DOWN_CMPB);
                                      
                                             // setup the Dead-Band Generator load mode Register (DBCTL)
        EPWM_setDeadBandDelayMode(obj->pwmHandle[cnt], EPWM_DB_AHC_RED, true); //EPWM_DB_RED
        EPWM_setDeadBandDelayMode(obj->pwmHandle[cnt], EPWM_DB_AHC_FED, true);

        // select EPWMA as the input to the dead band generator
        EPWM_setRisingEdgeDeadBandDelayInput(obj->pwmHandle[cnt],
                                             EPWM_DB_INPUT_EPWMA);

        // setup DBCTRL mode/polarity for H/L symmetric complementary dead band.
        EPWM_setDeadBandDelayPolarity(obj->pwmHandle[cnt],
                                      EPWM_DB_AHC,
                                      EPWM_DB_POLARITY_ACTIVE_HIGH_COMPLMNT);

        // setup the Dead-Band Rising Edge Delay Register (DBRED)
        EPWM_setRisingEdgeDelayCount(obj->pwmHandle[cnt], HAL_PWM_DBRED_CNT);

        // setup the Dead-Band Falling Edge Delay Register (DBFED)
        EPWM_setFallingEdgeDelayCount(obj->pwmHandle[cnt], HAL_PWM_DBFED_CNT);