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器件型号：TMS320F280025C 主题中讨论的其他器件：C2000WARE
/**ePWM initialization with phase shift*/
void epwm_init(uint32_t base, uint16_t phi)
{
/**Parameters*/
EPWM_setTimeBaseCounterMode(base, EPWM_COUNTER_MODE_UP);
EPWM_setTimeBasePeriod(base, EPWM_TBPRD);
EPWM_setTimeBaseCounter(base, 0U);
EPWM_setClockPrescaler(base, EPWM_CLOCK_DIVIDER_4, EPWM_HSCLOCK_DIVIDER_4);
/**Set up shadowing*/
EPWM_setCounterCompareShadowLoadMode(base, EPWM_COUNTER_COMPARE_A, EPWM_COMP_LOAD_ON_CNTR_ZERO);
/**Set actions
For boost assembly*/
EPWM_setActionQualifierAction(base, SPWM_TOP, EPWM_AQ_OUTPUT_HIGH, EPWM_AQ_OUTPUT_ON_TIMEBASE_UP_CMPA);
EPWM_setActionQualifierAction(base, SPWM_TOP, EPWM_AQ_OUTPUT_LOW, EPWM_AQ_OUTPUT_ON_TIMEBASE_ZERO);
/**For buck assembly*/
EPWM_setActionQualifierAction(base, SPWM_BOT, EPWM_AQ_OUTPUT_HIGH, EPWM_AQ_OUTPUT_ON_TIMEBASE_UP_CMPB);
EPWM_setActionQualifierAction(base, SPWM_BOT, EPWM_AQ_OUTPUT_LOW, EPWM_AQ_OUTPUT_ON_TIMEBASE_ZERO);
/// To force command MOS ePWM at a low state.
if((base == SPWM_U) ||
(base == SPWM_V) ||
(base == SPWM_W))
{
EPWM_setActionQualifierContSWForceAction(SPWM_U, SPWM_BOT, EPWM_AQ_SW_OUTPUT_LOW);
EPWM_setActionQualifierContSWForceAction(SPWM_V, SPWM_BOT, EPWM_AQ_SW_OUTPUT_LOW);
EPWM_setActionQualifierContSWForceAction(SPWM_W, SPWM_BOT, EPWM_AQ_SW_OUTPUT_LOW);
EPWM_setActionQualifierContSWForceAction(SPWM_U, SPWM_TOP, EPWM_AQ_SW_OUTPUT_LOW);
EPWM_setActionQualifierContSWForceAction(SPWM_V, SPWM_TOP, EPWM_AQ_SW_OUTPUT_LOW);
EPWM_setActionQualifierContSWForceAction(SPWM_W, SPWM_TOP, EPWM_AQ_SW_OUTPUT_LOW);
}
if(base == SPWM_FOR_ADC)
{
EPWM_setTimeBasePeriod(base, EPWM_TBPRD_ADC);
/**Initialize PWM to add samples ADC in loop close regulation*/
EPWM_setCounterCompareValue(base, EPWM_COUNTER_COMPARE_A, CMPA_EPWM_ADC);
}
if(base == SPWM_REGU)
{
EPWM_setTimeBasePeriod(base, EPWM_TBPRD_REGU);
/**Initialize PWM to regulation interrupt*/
EPWM_setCounterCompareValue(base, EPWM_COUNTER_COMPARE_A, CMPA_EPWM_REGU);
}
/**Configure ePMWs*/
// Todo comments to explain
if(phi == 0)
{
EPWM_disablePhaseShiftLoad(base);
EPWM_setPhaseShift(base, phi);
EPWM_enableSyncOutPulseSource(base, EPWM_SYNC_OUT_PULSE_ON_CNTR_ZERO);
}
else
{
uint16_t tbphs = epwm_get_tbphs_from_phi(base, phi);
EPWM_setSyncInPulseSource(base, EPWM_SYNC_IN_PULSE_SRC_SYNCOUT_EPWM1);
EPWM_enablePhaseShiftLoad(base);
EPWM_selectPeriodLoadEvent(base, EPWM_SHADOW_LOAD_MODE_SYNC);
EPWM_setPhaseShift(base, tbphs);
EPWM_setTimeBaseCounter(base, tbphs);
}
}
EPWM_setInterruptSource(SPWM_REGU, EPWM_INT_TBCTR_ZERO);
EPWM_enableInterrupt(SPWM_REGU);
Interrupt_register(INT_EPWM3, &isr_regulation);
Interrupt_enable(INT_EPWM3); // Delete after test because it's active in case run in the state machine.
您好！
配置 ePWM 中断时遇到问题、我希望在 ePWM 信号的每个周期生成中断。 它不起作用，我从不输入中断，我必须忘记配置部件？ 可以帮帮我吗？
谢谢
Damien
