F280025C,内置比较器触发TZ中断，能单独关闭EPWMA或EPWMB吗？
我这段代码，TZ一触发会把整个EPWM2关闭，我只想关闭EPWMB这一路的输出。{
// Enable CMPSS and configure the negative input signal to come from the DAC
CMPSS_enableModule(CMPSS3_BASE);
// Use VDDA as the reference for the DAC and set DAC value to midpoint for arbitrary reference.
CMPSS_configDAC(CMPSS3_BASE, CMPSS_DACREF_VDDA);
ASysCtl_selectCMPLPMux(ASYSCTL_CMPLPMUX_SELECT_3, 3);//LDr2
// Configure the output signals. Both CTRIPH will be fed by the asynchronous comparator output.
//LDr1
CMPSS_configHighComparator(CMPSS3_BASE, CMPSS_INSRC_DAC); // Threshold drive by GPIO or input DAC
CMPSS_setDACValueHigh(CMPSS3_BASE, max_dac_cmpss); // Define threshold
CMPSS_configOutputsHigh(CMPSS3_BASE, CMPSS_TRIP_SYNC_COMP); // Set output comparator (synchronous or asynchronous)
//LDr2
CMPSS_configLowComparator(CMPSS3_BASE, CMPSS_INSRC_DAC); // Threshold drive by GPIO or input DAC
CMPSS_setDACValueLow(CMPSS3_BASE, max_dac_cmpss); // Define threshold
CMPSS_configOutputsLow(CMPSS3_BASE, CMPSS_TRIP_SYNC_COMP); // Set output comparator (synchronous or asynchronous)
// Configure TRIP to be CTRIP1H using the ePWM X-BAR. Attach CMPSS output to TRIPINx via EPWMXBAR module
XBAR_setEPWMMuxConfig(XBAR_TRIP8, XBAR_EPWM_MUX05_CMPSS3_CTRIPL);//LDr2
XBAR_enableEPWMMux(XBAR_TRIP8, XBAR_MUX05);//LDr2
EPWM_selectDigitalCompareTripInput(EPWM2_BASE, EPWM_DC_TRIP_TRIPIN8, EPWM_DC_TYPE_DCBH);
EPWM_setTripZoneDigitalCompareEventCondition(EPWM2_BASE, EPWM_TZ_DC_OUTPUT_B1, EPWM_TZ_EVENT_DCXH_HIGH);
EPWM_setTripZoneAction(EPWM2_BASE, EPWM_TZ_ACTION_EVENT_TZB, EPWM_TZ_ACTION_LOW);
EPWM_enableTripZoneSignals(EPWM2_BASE, EPWM_TZ_SIGNAL_DCBEVT1);
EPWM_forceTripZoneEvent(EPWM2_BASE,EPWM_TZ_FORCE_EVENT_DCBEVT1);
EPWM_clearOneShotTripZoneFlag(EPWM2_BASE,EPWM_TZ_OST_FLAG_DCBEVT1);
EPWM_clearTripZoneFlag(EPWM2_BASE, (EPWM_TZ_INTERRUPT | EPWM_TZ_FLAG_DCBEVT1));
} ti的dsp命名太魔幻了。
F2808
F28027 F28035 F28069
F280025
再过几年
F280000000033 通过EPWM_setTripZoneAction
显式配置TZA事件发生时，无动作。 summarize 发表于 2024-1-10 15:01
通过EPWM_setTripZoneAction
显式配置TZA事件发生时，无动作。
(引用自3楼)
EPWMA路我也用到了，A,B是独立发波，所以需求是A路短路关A路，B路短路关B路。我现在是A或B短路，2路都同时关闭了
EPWM_selectDigitalCompareTripInput(base, EPWM_DC_TRIP_TRIPIN4,EPWM_DC_TYPE_DCAH);
EPWM_selectDigitalCompareTripInput(base, EPWM_DC_TRIP_TRIPIN8,EPWM_DC_TYPE_DCBH);
EPWM_setTripZoneAction(base,EPWM_TZ_ACTION_EVENT_DCAEVT1,EPWM_TZ_ACTION_LOW);
EPWM_setTripZoneAction(base,EPWM_TZ_ACTION_EVENT_DCBEVT1,EPWM_TZ_ACTION_LOW);
//
// DCAEVT1 is generated when DCAH is high. DCBEVT2 is generated when DCBH
// is high
//
EPWM_setTripZoneDigitalCompareEventCondition(base, EPWM_TZ_DC_OUTPUT_A1,EPWM_TZ_EVENT_DCXH_HIGH);
EPWM_setTripZoneDigitalCompareEventCondition(base, EPWM_TZ_DC_OUTPUT_B1,EPWM_TZ_EVENT_DCXH_HIGH);
//
// DCAEVT1/DCBEVT2 uses the unfiltered version of DCAEVT1/DCBEVT2
//
EPWM_setDigitalCompareEventSource(base, EPWM_DC_MODULE_A,
EPWM_DC_EVENT_1, EPWM_DC_EVENT_SOURCE_ORIG_SIGNAL);
EPWM_setDigitalCompareEventSource(base, EPWM_DC_MODULE_B,
EPWM_DC_EVENT_1, EPWM_DC_EVENT_SOURCE_ORIG_SIGNAL);
//
// DCAEVT1/ DCBEVT2 is asynchronous
//
EPWM_setDigitalCompareEventSyncMode(base, EPWM_DC_MODULE_A,
EPWM_DC_EVENT_1, EPWM_DC_EVENT_INPUT_NOT_SYNCED);
EPWM_setDigitalCompareEventSyncMode(base, EPWM_DC_MODULE_B,
EPWM_DC_EVENT_1, EPWM_DC_EVENT_INPUT_NOT_SYNCED);
这样就可以单独关闭EPWMA或EPWMB了
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