TI中文支持网F280049C采用3次事件触发，上升下降计数，触发源采用ET_CTR_ZERO或ET_CTR_PRD，均无法进入中断。
采用2次事件触发时，触发源采用ET_CTR_ZERO可进入中断，ET_CTR_PRD无法进入中断。
请问是哪里设置不对吗？
Green Deng：方便上传一下PWM配置部分的程序吗？
F280049C采用3次事件触发，上升下降计数，触发源采用ET_CTR_ZERO或ET_CTR_PRD，均无法进入中断。
采用2次事件触发时，触发源采用ET_CTR_ZERO可进入中断，ET_CTR_PRD无法进入中断。
请问是哪里设置不对吗？
user5056254：
回复 Green Deng:
void Init_ePWM1(){ EALLOW; //Timebase clock EPwm1Regs.TBCTL.bit.HSPCLKDIV =0; // High-speed clock prescalar HSPCLKDIV: 0x0=1,0×1=2,0×2=4,0×3=6…0x7=14 EPwm1Regs.TBCTL.bit.CLKDIV = 0;
//Timebase, Counter-mode, Phase-shift, etc. EPwm1Regs.TBCTL.bit.CTRMODE = TB_COUNT_UPDOWN; EPwm1Regs.TBPRD = PeriodLLCInit; // Period = TBPRD*TBCLK counts (for updown,additionaly*2); Switching frequency= PWMCLK/TBPRD EPwm1Regs.TBCTL.bit.PHSDIR = TB_UP; EPwm1Regs.TBPHS.bit.TBPHS = 0; // Set Phase register EPwm1Regs.TBCTL.bit.PHSEN = TB_DISABLE; // TB_DISABLE=Master module TB_ENABLE=Slave module EPwm1Regs.TBCTL.bit.PRDLD = TB_SHADOW; // TB_SHADOW/TB_IMMEDIATE EPwm1Regs.TBCTL.bit.SYNCOSEL = TB_CTR_ZERO; EPwm1Regs.CMPCTL.bit.SHDWAMODE = CC_SHADOW; // CC_SHADOW/CC_IMMEDIATE EPwm1Regs.CMPCTL.bit.SHDWBMODE = CC_SHADOW; // CC_SHADOW/CC_IMMEDIATE EPwm1Regs.CMPCTL.bit.LOADAMODE = CC_CTR_ZERO; // CC_CTR_ZERO/CC_CTR_PRD/CC_CTR_ZERO_PRD/CC_LD_DISABLE EPwm1Regs.CMPCTL.bit.LOADBMODE = CC_CTR_ZERO; // CC_CTR_ZERO/CC_CTR_PRD/CC_CTR_ZERO_PRD/CC_LD_DISABLE
//ePWM Actions [A] EPwm1Regs.AQCTLA.bit.CAU = AQ_CLEAR; // AQ_NO_ACTION/AQ_CLEAR/AQ_SET/AQ_TOGGLE EPwm1Regs.AQCTLA.bit.CAD = AQ_NO_ACTION; // AQ_NO_ACTION/AQ_CLEAR/AQ_SET/AQ_TOGGLE EPwm1Regs.AQCTLA.bit.CBU = AQ_NO_ACTION; // AQ_NO_ACTION/AQ_CLEAR/AQ_SET/AQ_TOGGLE EPwm1Regs.AQCTLA.bit.CBD = AQ_NO_ACTION; // AQ_NO_ACTION/AQ_CLEAR/AQ_SET/AQ_TOGGLE EPwm1Regs.AQCTLA.bit.ZRO = AQ_SET; // AQ_NO_ACTION/AQ_CLEAR/AQ_SET/AQ_TOGGLE EPwm1Regs.AQCTLA.bit.PRD = AQ_NO_ACTION; // AQ_NO_ACTION/AQ_CLEAR/AQ_SET/AQ_TOGGLE
//ePWM Actions [B] EPwm1Regs.AQCTLB.bit.CAU = AQ_NO_ACTION; // AQ_NO_ACTION/AQ_CLEAR/AQ_SET/AQ_TOGGLE EPwm1Regs.AQCTLB.bit.CAD = AQ_NO_ACTION; // AQ_NO_ACTION/AQ_CLEAR/AQ_SET/AQ_TOGGLE EPwm1Regs.AQCTLB.bit.CBU = AQ_NO_ACTION; // AQ_NO_ACTION/AQ_CLEAR/AQ_SET/AQ_TOGGLE EPwm1Regs.AQCTLB.bit.CBD = AQ_SET; // AQ_NO_ACTION/AQ_CLEAR/AQ_SET/AQ_TOGGLE EPwm1Regs.AQCTLB.bit.ZRO = AQ_SET; // AQ_NO_ACTION/AQ_CLEAR/AQ_SET/AQ_TOGGLE EPwm1Regs.AQCTLB.bit.PRD = AQ_CLEAR; // AQ_NO_ACTION/AQ_CLEAR/AQ_SET/AQ_TOGGLE
//ePWM Deadband EPwm1Regs.DBCTL.bit.IN_MODE = DBA_RED_DBB_FED; // DBA_ALL /DBB_RED_DBA_FED/DBA_RED_DBB_FED/DBB_ALL EPwm1Regs.DBCTL.bit.OUT_MODE = DB_FULL_ENABLE; // DB_DISABLE/DBA_ENABLE/DBB_ENABLE/DB_FULL_ENABLE EPwm1Regs.DBCTL.bit.POLSEL = DB_ACTV_HIC; // DB_ACTV_HI/DB_ACTV_LOC/DB_ACTV_HIC/DB_ACTV_LO EPwm1Regs.DBFED.bit.DBFED = DB_FEDPri; // FED = DBFED*t_TBCLK, 1==0.01us EPwm1Regs.DBRED.bit.DBRED = DB_FEDPri; // RED = DBRED*t_TBCLK, 1==0.01us
//ePWM Chopper //Never used in a digital power supply
//ePWM Trip-Zone
EPwm1Regs.TZSEL.bit.OSHT1 = 0;
// What do we want the TZ1 and TZ2 to do? EPwm1Regs.TZCTL.bit.TZA = TZ_FORCE_LO; // TZ_HIZ TZ_FORCE_HI TZ_FORCE_LO TZ_NO_CHANGE EPwm1Regs.TZCTL.bit.TZB = TZ_FORCE_LO;
// Enable TZ interrupt EPwm1Regs.TZEINT.bit.OST = 0; // Trip-Zone interrupt 0==Disable 1==enable; ; Change enable source by Bit of OSH(or CBC)// EPwm1Regs.TZEINT.bit.CBC = 1;
//ePWM Counter/Compare Initialization EPwm1Regs.TBCTR = 0; // TBCTR EPwm1Regs.CMPA.bit.CMPA = PeriodLLCInit>>1 ; // CMPA EPwm1Regs.CMPB.bit.CMPB = 0; // CMPB
//ePWM Event-Trigger // —ePWM interrupt EPwm1Regs.ETSEL.bit.INTEN = 1; // EPWMxINT interrupt enable; EPwm1Regs.ETSEL.bit.INTSEL = ET_CTR_ZERO; // trigger source of EPWMxINT : // EPwm1Regs.ETPS.bit.INTPSSEL = 1; // 选择0~3事件还是0~15个事件触发 EPwm1Regs.ETPS.bit.INTPRD = ET_3RD; // every ? event(s) : ET_DISABLE/ET_1ST/ET_2ND/ET_3RD
// —SoC_A interrupt EPwm1Regs.ETSEL.bit.SOCAEN = 1; // SOCA interrupt enable; EPwm1Regs.ETSEL.bit.SOCASEL = ET_CTR_PRD; // trigger source of SOCA : EPwm1Regs.ETPS.bit.SOCAPRD = ET_1ST; // every ? event(s) : ET_DISABLE/ET_1ST/ET_2ND/ET_3RD EDIS;
}
