//產生周期變化的正弦波
#include?“DSP2833x_Device.h“?????//?DSP2833x?Headerfile?Include?File
#include?“DSP2833x_Examples.h“???//?DSP2833x?Examples?Include?File

#include?“IQmathLib.h“
#include?“qmath.h“
#include?“math.h“

#define?N??33
#define?PI?3.1415925
#define?PRD?600
float?M=0.8;
int?i;
//double?a[N];

//unsigned?int?n=0;?
//float?Q;

#define?PWM1_INT_ENABLE??1
#define?PWM2_INT_ENABLE??1
#define?PWM3_INT_ENABLE??1

void?InitEPwm1Example（void）;
//void?InitEPwm2Example（void）;
//void?InitEPwm3Example（void）;

interrupt?void?epwm1_timer_isr（void）;
//interrupt?void?epwm2_timer_isr（void）;
//interrupt?void?epwm3_timer_isr（void）;

//void?InitCmp（）;
//extern?Uint16?NNMM;
//Uint16?NN=24MM=1;
//Uint16?n=0;
Uint16?cmp1[360]cmp2[360]cmp3[360];

Uint32??EPwm1TimerIntCount;
Uint32??EPwm2TimerIntCount;
Uint32??EPwm3TimerIntCount;

void?main（void）
{
???InitSysCtrl（）;
???InitEPwm1Gpio（）;
?//??InitEPwm2Gpio（）;
??//?InitEPwm3Gpio（）;
???DINT;
???InitPieCtrl（）;
???IER?=?0x0000;
???IFR?=?0x0000;
???InitPieVectTable（）;
???EALLOW;??//?This?is?needed?to?write?to?EALLOW?protected?registers
???PieVectTable.EPWM1_INT?=?&epwm1_timer_isr;
??//?PieVectTable.EPWM2_INT?=?&epwm2_timer_isr;
?//??PieVectTable.EPWM3_INT?=?&epwm3_timer_isr;
???EDIS;???
???
???EALLOW;
???SysCtrlRegs.PCLKCR0.bit.TBCLKSYNC?=?0;??????//?Stop?all?the?TB?clocks
???EDIS;
???
???InitEPwm1Example（）;
?//??InitEPwm2Example（）;
?//??InitEPwm3Example（）;
?//??InitCmp（）;
???EALLOW;
???SysCtrlRegs.PCLKCR0.bit.TBCLKSYNC?=?1;
???EDIS;

???EPwm1TimerIntCount?=?0;
???EPwm2TimerIntCount?=?0;
???EPwm3TimerIntCount?=?0;
???
???IER?|=?M_INT3;
???
???PieCtrlRegs.PIEIER3.bit.INTx1?=?PWM1_INT_ENABLE;
??//?PieCtrlRegs.PIEIER3.bit.INTx2?=?PWM2_INT_ENABLE;
??//?PieCtrlRegs.PIEIER3.bit.INTx3?=?PWM3_INT_ENABLE;
???EINT;???//?Enable?Global?interrupt?INTM
???ERTM;???
???{
???????asm（“???NOP“）;
???}
}



void?InitEPwm1Example（）
{

???EPwm1Regs.TBCTL.bit.SYNCOSEL?=?TB_CTR_ZERO;//zhuyi?
???EPwm1Regs.TBPRD?=?PRD;??????????//載波周期=2*1500TBCLK
???EPwm1Regs.TBPHS.half.TBPHS?=?0x0000;????????????//?Phase?is?0
???EPwm1Regs.TBCTL.bi