TMS320F28335实现数字SPWM程序实战

#include "DSP28x_Project.h"
//#include "IQmathLib.h"
#include "math.h"

#define EPWM1_TIMER_TBPRD 3750
#define EPWM2_TIMER_TBPRD 3750

void InitEPwm1Example(void);
void InitEPwm2Example(void);

interrupt void epwm1_timer_isr(void);
interrupt void epwm2_timer_isr(void);

extern Uint32 k=0;
extern Uint32 TonC[400]={1875,1851,1828,1804,1781,1757,1734,1710,1687,1664,1640,1617,       1594,1571,1548,1525,1502,1479,1457,1434,1411,1389,1367,1345,1323,1301,      1279,1258,1236,1215,1194,1173,1152,1132,1111,1091,1071,1051,1032,1012,    993,974,956,937,919,901,883,865,848,831,814,798,782,766,750,734,719,704,     690,675,661,648,634,621,609,596,584,572,561,549,538,528,518,508,498,489,    480,472,464,456,448,441,435,428,422,416,411,406,402,397,393,390,387,384,     382,380,378,377,376,375,375,375,376,377,378,380,382,384,387,390,393,397,     402,406,411,416,422,428,435,441,448,456,464,472,480,489,498,508,518,528,   538,549,561,572,584,596,609,621,634,648,661,675,690,704,719,734,750,766,     782,798,814,831,848,865,883,901,919,937,956,974,993,1012,1032,1051,1071,    1091,1111,1132,1152,1173,1194,1215,1236,1258,1279,1301,1323,1345,1367,
1389,1411,1434,1457,1479,1502,1525,1548,1571,1594,1617,1640,1664,1687,    1710,1734,1757,1781,1804,1828,1851,1875,1899,1922,1946,1969,1993,2016,    2040,2063,2086,2110,2133,2156,2179,2202,2225,2248,2271,2293,2316,2339,   2361,2383,2405,2427,2449,2471,2492,2514,2535,2556,2577,2598,2618,2639,   2659,2679,2699,2718,2738,2757,2776,2794,2813,2831,2849,2867,2885,2902,    2919,2936,2952,2968,2984,3000,3016,3031,3046,3060,3075,3089,3102,3116,    3129,3141,3154,3166,3178,3189,3201,3212,3222,3232,3242,3252,3261,3270,
3278,3286,3294,3302,3309,3315,3322,3328,3334,3339,3344,3348,3353,3357,   3360,3363,3366,3368,3370,3372,3373,3374,3375,3375,3375,3374,3373,3372,    3370,3368,3366,3363,3360,3357,3353,3348,3344,3339,3334,3328,3322,3315,  3309,3302,3294,3286,3278,3270,3261,3252,3242,3232,3222,3212,3201,3189,    3178,3166,3154,3141,3129,3116,3102,3089,3075,3060,3046,3031,3016,3000,    2984,2968,2952,2936,2919,2902,2885,2867,2849,2831,2813,2794,2776,2757,   2738,2718,2699,2679,2659,2639,2618,2598,2577,2556,2535,2514,2492,2471,    2449,2427,2405,2383,2361,2339,2316,2293,2271,2248,2225,2202,2179,2156,    2133,2110,2086,2063,2040,2016,1993,1969,1946,1922,1899};


void main(void)
{
   InitSysCtrl();
   InitEPwm1Gpio();
   InitEPwm2Gpio();
    
   DINT;
   InitPieCtrl();
   IER = 0x0000;
   IFR = 0x0000;
   InitPieVectTable();

 
   EALLOW;
   PieVectTable.EPWM1_INT = &epwm1_timer_isr;
   PieVectTable.EPWM2_INT = &epwm2_timer_isr;
   EDIS;   
   
   EALLOW;
   SysCtrlRegs.PCLKCR0.bit.TBCLKSYNC = 0;         
   EDIS;
   
   InitEPwm1Example();
   InitEPwm2Example();
   
   EALLOW;
   SysCtrlRegs.PCLKCR0.bit.TBCLKSYNC = 1;
   EDIS;

   IER |= M_INT3;
   
   PieCtrlRegs.PIEIER3.bit.INTx1 = 1;
   PieCtrlRegs.PIEIER3.bit.INTx2 = 1;

   EINT;   
   ERTM;   
   
   for(;;)
   {
       asm("   NOP");
   }
}