工具/软件:
您好:
我生成了比较器输出信号(用于迟滞逆变器电流控制)并将其馈送到 TRIP4。 然后、我将 TRIP4 馈送到数字比较器并从 TRIP4 生成 DCAH 信号。
然后、我生成事件 DCA1 和 DCA2、并将它们连接到 EPWM1 动作限定器的 T1 和 T2 触发源。 之后、我将 T1 和 T2 连接到 EPWM1 的动作限定器、EPWM1 的动作限定器之前已正确初始化、以实现向上/向下计数、并且不对输出信号进行操作。
下面是代码
XBAR_setEPWMMuxConfig (XBAR_TRIP4、XBAR_EPWM_MUX00_CMPSS1_CTRIPH);
XBAR_enableEPWMMux (XBAR_TRIP4、XBAR_MUX00);
EPWM_selectDigitalCompareTripInput (EPWM1_BASE、EPWM_DC_TRIP_TRIPIN4、EPWM_DC_TYPE_DCAH);
EPWM_setTripZoneDigitalCompareEventCondition (EPWM1_BASE、EPWM_TZ_DC_OUTPUT_A1、EPWM_TZ_EVENT_DCXH_HIGH);
EPWM_setTripZoneDigitalCompareEventCondition (EPWM1_BASE、EPWM_TZ_DC_OUTPUT_A2、EPWM_TZ_EVENT_DCXH_LOW);
EPWM_setActionQualifierT1TriggerSource (EPWM1_BASE、EPWM_AQ_TRIGGER_EVENT_TRIG_DCA_1);
EPWM_setActionQualifierT2TriggerSource (EPWM1_BASE、EPWM_AQ_TRIGGER_EVENT_TRIG_DCA_2);
EPWM_setDigitalCompareEventSource (EPWM1_BASE、EPWM_DC_MODULE_A、EPWM_DC_EVENT_1、EPWM_DC_EVENT_SOURCE_ORIG_SIGNAL);
EPWM_setDigitalCompareEventSyncMode (EPWM1_BASE、EPWM_DC_MODULE_A、EPWM_DC_EVENT_1、EPWM_DC_EVENT_INPUT_NOT_Synchronous);
EPWM_setDigitalCompareEventSource (EPWM1_BASE、EPWM_DC_MODULE_A、EPWM_DC_EVENT_2、EPWM_DC_EVENT_SOURCE_ORIG_SIGNAL);
EPWM_setDigitalCompareEventSyncMode (EPWM1_BASE、EPWM_DC_MODULE_A、EPWM_DC_EVENT_2、EPWM_DC_EVENT_INPUT_NOT_Synchronous);
EPWM_enableTripZoneSignals (EPWM1_BASE、EPWM_TZ_SIGNAL_DCAEVT2 | EPWM_TZ_SIGNAL_DCBEVT2);
EPWM_enableTripZoneSignals (EPWM1_BASE、EPWM_TZ_SIGNAL_DCAEVT1 | EPWM_TZ_SIGNAL_DCAEVT2);
EPWM_setActionQualifierAction (EPWM1_BASE、EPWM_AQ_OUTPUT_A、EPWM_AQ_OUTPUT_HIGH、EPWM_AQ_OUTPUT_ON_T1_COUNT_UP);
EPWM_setActionQualifierAction (EPWM1_BASE、EPWM_AQ_OUTPUT_A、EPWM_AQ_OUTPUT_HIGH、EPWM_AQ_OUTPUT_ON_T1_COUNT_DOWN);
EPWM_setActionQualifierAction (EPWM1_BASE、EPWM_AQ_OUTPUT_A、EPWM_AQ_OUTPUT_LOW、EPWM_AQ_OUTPUT_ON_T2_COUNT_UP);
EPWM_setActionQualifierAction (EPWM1_BASE、EPWM_AQ_OUTPUT_A、EPWM_AQ_OUTPUT_LOW、EPWM_AQ_OUTPUT_ON_T2_COUNT_DOWN);
但是、该器件不起作用、并且输出 EPWM1A 始终为 0。
请说明一下问题是什么。
此致