#include "DSP28x_Project.h"
void GPIO_Init(void);
void EPWM_Init(void);
void InitEPwm1Example(void);
void InitEPwm2Example(void);
int main(void)
{
InitSysCtrl();
EALLOW;
SysCtrlRegs.PCLKCR0.bit.TBCLKSYNC = 0;
EDIS;
InitEPwm1Gpio();
InitEPwm2Gpio();
EALLOW;
SysCtrlRegs.PCLKCR0.bit.TBCLKSYNC = 1;
EDIS;
DINT;
InitPieCtrl();
IER = 0x0000;
IFR = 0x0000;
InitPieVectTable();
InitEPwm1Example();
InitEPwm2Example();
while(1)
{
}
}
void InitEPwm1Example(){
EPwm1Regs.TBPRD = 3571; // Period = 601 TBCLK counts
EPwm1Regs.CMPA.half.CMPA = 1785; // Compare A = 350 TBCLK counts
EPwm1Regs.CMPB = 1785; // Compare B = 200 TBCLK counts
EPwm1Regs.TBPHS.half.TBPHS = 0; // Set Phase register to zero
EPwm1Regs.TBCTR = 0; // clear TB counter
EPwm1Regs.TBCTL.bit.CTRMODE = TB_COUNT_UP;
EPwm1Regs.TBCTL.bit.PHSEN = TB_DISABLE; // Phase loading disabled
EPwm1Regs.TBCTL.bit.PRDLD = TB_IMMEDIATE;
EPwm1Regs.TBCTL.bit.SYNCOSEL = TB_CTR_ZERO;
EPwm1Regs.TBCTL.bit.HSPCLKDIV = TB_DIV2; // TBCLK = SYSCLK
EPwm1Regs.TBCTL.bit.CLKDIV = TB_DIV1;
EPwm1Regs.CMPCTL.bit.SHDWAMODE = CC_IMMEDIATE;
EPwm1Regs.CMPCTL.bit.SHDWBMODE = CC_IMMEDIATE;
EPwm1Regs.CMPCTL.bit.LOADAMODE = CC_CTR_ZERO; // load on CTR = Zero
EPwm1Regs.CMPCTL.bit.LOADBMODE = CC_CTR_ZERO; // load on CTR = Zero
EPwm1Regs.AQCTLA.bit.ZRO = AQ_SET;
EPwm1Regs.AQCTLA.bit.CAU = AQ_CLEAR;
EPwm1Regs.AQCTLB.bit.PRD = AQ_CLEAR;
EPwm1Regs.AQCTLB.bit.CBU = AQ_SET;
EPwm1Regs.DBCTL.bit.OUT_MODE = DB_FULL_ENABLE; // enable Dead-band module
EPwm1Regs.DBCTL.bit.POLSEL = DB_ACTV_HIC; // Active Hi complementary
EPwm1Regs.DBFED = 70; // FED = 50 TBCLKs initially
EPwm1Regs.DBRED = 70; // RED = 70 TBCLKs initially
}
void InitEPwm2Example(){
EPwm2Regs.TBPRD = 3571; // Period = 601 TBCLK counts
EPwm2Regs.CMPA.half.CMPA = 1785; // Compare A = 350 TBCLK counts
EPwm2Regs.CMPB = 1785; // Compare B = 200 TBCLK counts
EPwm2Regs.TBPHS.half.TBPHS = 0; // Set Phase register to zero
EPwm2Regs.TBCTR = 0; // clear TB counter
EPwm2Regs.TBCTL.bit.CTRMODE = TB_COUNT_UP;
EPwm2Regs.TBCTL.bit.PHSEN = TB_DISABLE; // Phase loading disabled
EPwm2Regs.TBCTL.bit.PRDLD = TB_IMMEDIATE;
EPwm2Regs.TBCTL.bit.SYNCOSEL = TB_CTR_ZERO;
EPwm2Regs.TBCTL.bit.HSPCLKDIV = TB_DIV2; // TBCLK = SYSCLK
EPwm2Regs.TBCTL.bit.CLKDIV = TB_DIV1;
EPwm2Regs.CMPCTL.bit.SHDWAMODE = CC_IMMEDIATE;
EPwm2Regs.CMPCTL.bit.SHDWBMODE = CC_IMMEDIATE;
EPwm2Regs.CMPCTL.bit.LOADAMODE = CC_CTR_ZERO; // load on CTR = Zero
EPwm2Regs.CMPCTL.bit.LOADBMODE = CC_CTR_ZERO; // load on CTR = Zero
EPwm2Regs.AQCTLA.bit.ZRO = AQ_SET;
EPwm2Regs.AQCTLA.bit.CAU = AQ_CLEAR;
EPwm2Regs.AQCTLB.bit.PRD = AQ_CLEAR;
EPwm2Regs.AQCTLB.bit.CBU = AQ_SET;
EPwm2Regs.DBCTL.bit.OUT_MODE = DB_FULL_ENABLE; // enable Dead-band module
EPwm2Regs.DBCTL.bit.POLSEL = DB_ACTV_HIC; // Active Hi complementary
EPwm2Regs.DBFED = 70; // FED = 50 TBCLKs initially
EPwm2Regs.DBRED = 70; // RED = 70 TBCLKs initially
}
這是我的程式 我想要epwm2的輸出波型與epwm1的一樣
但在實際的輸出上epwm2卻沒有和epwm1同步 請問我該怎麼修改?