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器件型号：TMS320F28075 主题中讨论的其他器件：SysConfig
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我首先使用 F28379D TI EVM 板进行实验、并设置死区时间 RED = 0、FED = 0、但仍会有问题。 您能帮助我们根据随附的示例程序对其进行测试吗？
/* * Copyright (c) 2020 Texas Instruments Incorporated - http://www.ti.com * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * * Neither the name of Texas Instruments Incorporated nor the names of * its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ #include "board.h" void Board_init() { EALLOW; PinMux_init(); SYNC_init(); CMPSS_init(); EPWM_init(); EPWMXBAR_init(); EDIS; } void PinMux_init() { // // EPWM7 -> myEPWM7 Pinmux // GPIO_setPinConfig(GPIO_12_EPWM7A); GPIO_setPinConfig(GPIO_13_EPWM7B); } void CMPSS_init(){ //myCMPSS0 initialization // Sets the configuration for the high comparator. CMPSS_configHighComparator(myCMPSS0_BASE,(CMPSS_INSRC_DAC | CMPSS_OR_ASYNC_OUT_W_FILT)); // Sets the configuration for the high comparator. CMPSS_configLowComparator(myCMPSS0_BASE,(CMPSS_INSRC_DAC | CMPSS_INV_INVERTED | CMPSS_OR_ASYNC_OUT_W_FILT)); // Sets the configuration for the internal comparator DACs. // - ePWM module must be configured before using here. CMPSS_configDAC(myCMPSS0_BASE,(CMPSS_DACVAL_PWMSYNC | CMPSS_DACREF_VDDA | CMPSS_DACSRC_SHDW)); // Sets the value of the internal DAC of the high comparator. CMPSS_setDACValueHigh(myCMPSS0_BASE,620U); // Sets the value of the internal DAC of the low comparator. CMPSS_setDACValueLow(myCMPSS0_BASE,124U); // Configures the digital filter of the high comparator. CMPSS_configFilterHigh(myCMPSS0_BASE, 0U, 1U, 1U); // Configures the digital filter of the low comparator. CMPSS_configFilterLow(myCMPSS0_BASE, 0U, 1U, 1U); // Sets the output signal configuration for the high comparator. CMPSS_configOutputsHigh(myCMPSS0_BASE,(CMPSS_TRIPOUT_ASYNC_COMP | CMPSS_TRIP_SYNC_COMP)); // Sets the output signal configuration for the low comparator. CMPSS_configOutputsLow(myCMPSS0_BASE,(CMPSS_TRIPOUT_ASYNC_COMP | CMPSS_TRIP_SYNC_COMP)); // Sets the comparator hysteresis settings. CMPSS_setHysteresis(myCMPSS0_BASE,1U); // Configures the comparator subsystem's ramp generator. CMPSS_configRamp(myCMPSS0_BASE,0U,0U,0U,1U,true); // Disables reset of HIGH comparator digital filter output latch on PWMSYNC CMPSS_disableLatchResetOnPWMSYNCHigh(myCMPSS0_BASE); // Disables reset of LOW comparator digital filter output latch on PWMSYNC CMPSS_disableLatchResetOnPWMSYNCLow(myCMPSS0_BASE); // Configures whether or not the digital filter latches are reset by PWMSYNC CMPSS_configLatchOnPWMSYNC(myCMPSS0_BASE,false,false); // Enables the CMPSS module. CMPSS_enableModule(myCMPSS0_BASE); // Delay for CMPSS DAC to power up. DEVICE_DELAY_US(500); } void EPWM_init(){ EPWM_setEmulationMode(myEPWM7_BASE, EPWM_EMULATION_FREE_RUN); EPWM_setClockPrescaler(myEPWM7_BASE, EPWM_CLOCK_DIVIDER_1, EPWM_HSCLOCK_DIVIDER_1); EPWM_setTimeBasePeriod(myEPWM7_BASE, 600); EPWM_setTimeBaseCounter(myEPWM7_BASE, 0); EPWM_setTimeBaseCounterMode(myEPWM7_BASE, EPWM_COUNTER_MODE_UP); EPWM_disablePhaseShiftLoad(myEPWM7_BASE); EPWM_setPhaseShift(myEPWM7_BASE, 0); EPWM_setSyncOutPulseMode(myEPWM7_BASE, EPWM_SYNC_OUT_PULSE_ON_COUNTER_ZERO); EPWM_setCounterCompareValue(myEPWM7_BASE, EPWM_COUNTER_COMPARE_A, 300); EPWM_setCounterCompareShadowLoadMode(myEPWM7_BASE, EPWM_COUNTER_COMPARE_A, EPWM_COMP_LOAD_ON_CNTR_ZERO); EPWM_setCounterCompareValue(myEPWM7_BASE, EPWM_COUNTER_COMPARE_B, 48); EPWM_setCounterCompareShadowLoadMode(myEPWM7_BASE, EPWM_COUNTER_COMPARE_B, EPWM_COMP_LOAD_ON_CNTR_ZERO); EPWM_setCounterCompareValue(myEPWM7_BASE, EPWM_COUNTER_COMPARE_C, 181); EPWM_setCounterCompareValue(myEPWM7_BASE, EPWM_COUNTER_COMPARE_D, 300); EPWM_setActionQualifierT1TriggerSource(myEPWM7_BASE, EPWM_AQ_TRIGGER_EVENT_TRIG_DCA_2); EPWM_setActionQualifierT2TriggerSource(myEPWM7_BASE, EPWM_AQ_TRIGGER_EVENT_TRIG_DCA_2); EPWM_setActionQualifierAction(myEPWM7_BASE, EPWM_AQ_OUTPUT_A, EPWM_AQ_OUTPUT_HIGH, EPWM_AQ_OUTPUT_ON_TIMEBASE_ZERO); EPWM_setActionQualifierAction(myEPWM7_BASE, EPWM_AQ_OUTPUT_A, EPWM_AQ_OUTPUT_NO_CHANGE, EPWM_AQ_OUTPUT_ON_TIMEBASE_PERIOD); EPWM_setActionQualifierAction(myEPWM7_BASE, EPWM_AQ_OUTPUT_A, EPWM_AQ_OUTPUT_LOW, EPWM_AQ_OUTPUT_ON_TIMEBASE_UP_CMPA); EPWM_setActionQualifierAction(myEPWM7_BASE, EPWM_AQ_OUTPUT_A, EPWM_AQ_OUTPUT_NO_CHANGE, EPWM_AQ_OUTPUT_ON_TIMEBASE_DOWN_CMPA); EPWM_setActionQualifierAction(myEPWM7_BASE, EPWM_AQ_OUTPUT_A, EPWM_AQ_OUTPUT_NO_CHANGE, EPWM_AQ_OUTPUT_ON_TIMEBASE_UP_CMPB); EPWM_setActionQualifierAction(myEPWM7_BASE, EPWM_AQ_OUTPUT_A, EPWM_AQ_OUTPUT_NO_CHANGE, EPWM_AQ_OUTPUT_ON_TIMEBASE_DOWN_CMPB); EPWM_setActionQualifierT1TriggerSource(myEPWM7_BASE, EPWM_AQ_TRIGGER_EVENT_TRIG_DCA_2); EPWM_setActionQualifierT2TriggerSource(myEPWM7_BASE, EPWM_AQ_TRIGGER_EVENT_TRIG_DCA_2); EPWM_setActionQualifierAction(myEPWM7_BASE, EPWM_AQ_OUTPUT_B, EPWM_AQ_OUTPUT_LOW, EPWM_AQ_OUTPUT_ON_TIMEBASE_ZERO); EPWM_setActionQualifierAction(myEPWM7_BASE, EPWM_AQ_OUTPUT_B, EPWM_AQ_OUTPUT_NO_CHANGE, EPWM_AQ_OUTPUT_ON_TIMEBASE_PERIOD); EPWM_setActionQualifierAction(myEPWM7_BASE, EPWM_AQ_OUTPUT_B, EPWM_AQ_OUTPUT_HIGH, EPWM_AQ_OUTPUT_ON_TIMEBASE_UP_CMPA); EPWM_setActionQualifierAction(myEPWM7_BASE, EPWM_AQ_OUTPUT_B, EPWM_AQ_OUTPUT_NO_CHANGE, EPWM_AQ_OUTPUT_ON_TIMEBASE_DOWN_CMPA); EPWM_setActionQualifierAction(myEPWM7_BASE, EPWM_AQ_OUTPUT_B, EPWM_AQ_OUTPUT_NO_CHANGE, EPWM_AQ_OUTPUT_ON_TIMEBASE_UP_CMPB); EPWM_setActionQualifierAction(myEPWM7_BASE, EPWM_AQ_OUTPUT_B, EPWM_AQ_OUTPUT_NO_CHANGE, EPWM_AQ_OUTPUT_ON_TIMEBASE_DOWN_CMPB); EPWM_setTripZoneAction(myEPWM7_BASE, EPWM_TZ_ACTION_EVENT_TZA, EPWM_TZ_ACTION_LOW); EPWM_setTripZoneAction(myEPWM7_BASE, EPWM_TZ_ACTION_EVENT_TZB, EPWM_TZ_ACTION_LOW); EPWM_setTripZoneAction(myEPWM7_BASE, EPWM_TZ_ACTION_EVENT_DCAEVT1, EPWM_TZ_ACTION_DISABLE); EPWM_setTripZoneAction(myEPWM7_BASE, EPWM_TZ_ACTION_EVENT_DCAEVT2, EPWM_TZ_ACTION_DISABLE); EPWM_setTripZoneAction(myEPWM7_BASE, EPWM_TZ_ACTION_EVENT_DCBEVT1, EPWM_TZ_ACTION_DISABLE); EPWM_setTripZoneAction(myEPWM7_BASE, EPWM_TZ_ACTION_EVENT_DCBEVT2, EPWM_TZ_ACTION_DISABLE); EPWM_enableTripZoneSignals(myEPWM7_BASE, EPWM_TZ_SIGNAL_DCAEVT2); EPWM_selectDigitalCompareTripInput(myEPWM7_BASE, EPWM_DC_TRIP_TRIPIN4, EPWM_DC_TYPE_DCAH); EPWM_selectDigitalCompareTripInput(myEPWM7_BASE, EPWM_DC_TRIP_TRIPIN4, EPWM_DC_TYPE_DCAL); EPWM_setTripZoneDigitalCompareEventCondition(myEPWM7_BASE, EPWM_TZ_DC_OUTPUT_A2, EPWM_TZ_EVENT_DCXL_HIGH); EPWM_setDigitalCompareEventSource(myEPWM7_BASE, EPWM_DC_MODULE_A, EPWM_DC_EVENT_1, EPWM_DC_EVENT_SOURCE_FILT_SIGNAL); EPWM_setDigitalCompareEventSource(myEPWM7_BASE, EPWM_DC_MODULE_A, EPWM_DC_EVENT_2, EPWM_DC_EVENT_SOURCE_FILT_SIGNAL); EPWM_selectDigitalCompareTripInput(myEPWM7_BASE, EPWM_DC_TRIP_TRIPIN4, EPWM_DC_TYPE_DCBH); EPWM_selectDigitalCompareTripInput(myEPWM7_BASE, EPWM_DC_TRIP_TRIPIN4, EPWM_DC_TYPE_DCBL); EPWM_setDigitalCompareFilterInput(myEPWM7_BASE, EPWM_DC_WINDOW_SOURCE_DCAEVT2); EPWM_enableDigitalCompareBlankingWindow(myEPWM7_BASE); EPWM_setDigitalCompareBlankingEvent(myEPWM7_BASE, EPWM_DC_WINDOW_START_TBCTR_ZERO); EPWM_setDigitalCompareWindowOffset(myEPWM7_BASE, 576); EPWM_setDigitalCompareWindowLength(myEPWM7_BASE, 84); EPWM_setDeadBandDelayPolarity(myEPWM7_BASE, EPWM_DB_FED, EPWM_DB_POLARITY_ACTIVE_LOW); EPWM_setDeadBandOutputSwapMode(myEPWM7_BASE, EPWM_DB_OUTPUT_A, true); EPWM_setDeadBandOutputSwapMode(myEPWM7_BASE, EPWM_DB_OUTPUT_B, true); EPWM_enableInterrupt(myEPWM7_BASE); EPWM_setInterruptSource(myEPWM7_BASE, EPWM_INT_TBCTR_U_CMPD); EPWM_setInterruptEventCount(myEPWM7_BASE, 1); EPWM_enableADCTrigger(myEPWM7_BASE, EPWM_SOC_A); EPWM_setADCTriggerSource(myEPWM7_BASE, EPWM_SOC_A, EPWM_SOC_TBCTR_U_CMPC); EPWM_setADCTriggerEventPrescale(myEPWM7_BASE, EPWM_SOC_A, 1); } void EPWMXBAR_init(){ //myEPWMXBAR0 initialization XBAR_setEPWMMuxConfig(XBAR_TRIP4, XBAR_EPWM_MUX07_CMPSS4_CTRIPL); XBAR_enableEPWMMux(XBAR_TRIP4, XBAR_MUX07); } void SYNC_init(){ SysCtl_setSyncOutputConfig(SYSCTL_SYNC_OUT_SRC_EPWM7SYNCOUT); // For EPWM1, the sync input is: SYSCTL_SYNC_IN_SRC_EXTSYNCIN1 SysCtl_setSyncInputConfig(SYSCTL_SYNC_IN_EPWM4, SYSCTL_SYNC_IN_SRC_EPWM1SYNCOUT); SysCtl_setSyncInputConfig(SYSCTL_SYNC_IN_EPWM7, SYSCTL_SYNC_IN_SRC_EPWM1SYNCOUT); SysCtl_setSyncInputConfig(SYSCTL_SYNC_IN_EPWM10, SYSCTL_SYNC_IN_SRC_EPWM7SYNCOUT); SysCtl_setSyncInputConfig(SYSCTL_SYNC_IN_ECAP1, SYSCTL_SYNC_IN_SRC_EPWM1SYNCOUT); SysCtl_setSyncInputConfig(SYSCTL_SYNC_IN_ECAP4, SYSCTL_SYNC_IN_SRC_EPWM1SYNCOUT); // SOCA SysCtl_enableExtADCSOCSource(0); // SOCB SysCtl_enableExtADCSOCSource(0); SysCtl_lockSyncSelect(); }
