SVPWM波问题

#include "DSP281x_Device.h"     // DSP281x Headerfile Include File
#include "DSP281x_Examples.h"   // DSP281x Examples Include File
#include "math.h"
#include "stdio.h"
#define VDC 100
#define ERPI 6.2831852
#define N 200
#define PWMPRD 200
struct SVPWM
{
float32 Vain;
float32 Vbin;
float32 Vcin;
float32 Vaout;
float32 Vbout;
float32 Vcout;
float32 Ubeta;
float32 Ualfa;
float32 Ta;
float32 Tb;
float32 Tc;
};
struct SVPWM*V;
float32 t1,t2;
Uint32 ticker=0;
float32 waveadata[N];
float32 wavebdata[N];
float32 wavecdata[N];
float32 temp[N];
int16 Amp;
Uint16 sector;
Uint32 interrupttickers;
void init_eva(void);
interrupt void svpwm_isr();
int A,B,C;
int a=0;
void comput_Vs(struct SVPWM*v);
void main(void)
{
  InitSysCtrl();//初始化系统函数
  EALLOW;
  GpioMuxRegs.GPAMUX.all=0x00FF;
  GpioMuxRegs.GPADIR.all=0x00FF;
  GpioMuxRegs.GPBMUX.all=0x00FF;
  GpioMuxRegs.GPBDIR.all=0x00FF;
  DINT;        // 禁止CPU中断和清除所有CPU中断标志
  IER = 0x0000;
  IFR = 0x0000;
  InitPieCtrl();     //初始化PI控制寄存器
  InitPieVectTable();//初始化PIE中断向量表，并使其指向中断服务子程序（ISR）
  EALLOW;
  PieVectTable.T1PINT=&svpwm_isr;
  EDIS;
  init_eva();
  interrupttickers=0;
  PieCtrlRegs.PIEIER2.all=M_INT4;
  IER |= M_INT2;//开CPU中断
  EINT;      //使能全局中断
  ERTM;    //使能实时中断
  //EvaRegs.T1CON.bit.TENABLE=1;
ticker=0;
Amp=55;
sector=0;
  for(; ;);
}
void init_eva()
{
EvaRegs.T1CON.bit.TMODE = 1; //通用定时器计数模式
EvaRegs.T1CON.bit.TPS = 1; //输入时钟预定标因子HSPCLK/1
EvaRegs.T1CON.bit.TENABLE = 0;//定时器使能为
EvaRegs.T1CON.bit.TCLKS10=0;//时钟源选择，内部时钟
EvaRegs.T1CON.bit.TECMPR=1;//定时器比较使能
EvaRegs.T1PR=PWMPRD;//周期寄存器的值
EvaRegs.T1CNT=0;//计数器的初值
EvaRegs.COMCONA.bit.CENABLE=1;// 比较器使能
EvaRegs.COMCONA.bit.FCOMPOE=1;// 全比较器输出使能
EvaRegs.COMCONA.bit.CLD=2;//比较器重新装载使能
EvaRegs.ACTRA.all=0x0666;
/* EvaRegs.GPTCONA.all=0;
EvaRegs.T1PR=PWMPRD;
EvaRegs.T1CMPR=0x0000;
EvaRegs.EVAIFRA.bit.T1PINT=1;
EvaRegs.EVAIMRA.bit.T1PINT=1;
EvaRegs.T1CNT=0x0000;
EvaRegs.T1CON.all=0x0842;
EvaRegs.GPTCONA.bit.T1TOADC=2;
EvaRegs.ACTRA.all=0x0666;*/
}
void comput_Vs(struct SVPWM*v)
{
  sector=0;
  if(ticker>=N)
  ticker=0;
  else
ticker++;
  v->Vain=wavebdata[ticker]=Amp*sin(ticker*6.285185307/N);
  v->Vbin=wavebdata[ticker]=Amp*sin(ticker*6.285185307/N-2.094395102);
  v->Vcin=wavebdata[ticker]=Amp*sin(ticker*6.285185307/N+2.094395102);
  v->Ualfa=0.816496583*(v->Vain-0.5*v->Vbin-0.5*v->Vcin);
  v->Ubeta=0.816496583*(0.8660254*v->Vbin-0.8660254*v->Vcin);
  v->Vaout=v->Ubeta;
  v->Vbout=-0.5*v->Ubeta+0.8660254*v->Ualfa;
  v->Vcout=-0.5*v->Ubeta-0.8660254*v->Ualfa;
  if(v->Vaout>0)
  A=1;
  else A=0;
  if(v->Vbout>0)
   B=1;
     else B=0;
  if(v->Vcout>0)
   C=1;
     else C=0;
  sector=A+2*B+4*C;
  v->Vaout=PWMPRD*v->Ubeta/VDC;
  v->Vbout=PWMPRD*(0.5*v->Ubeta+0.8660254*v->Ualfa)/VDC;
  v->Vcout=PWMPRD*(0.5*v->Ubeta-0.8660254*v->Ualfa)/VDC;
  if(sector==1)
  {
   t1=v->Vcout;
   t2=v->Vbout;
   v->Tb=0.5*(PWMPRD-t1-t2);
   v->Ta=v->Tb+t1;
   v->Tc=v->Ta+t2;
  }

  else if(sector==2)
   {
    t1=v->Vbout;
    t2=v->Vaout;
    v->Ta=0.5*(PWMPRD-t1-t2);
    v->Tc=v->Ta+t1;
    v->Tb=v->Tc+t2;
   }
  else if(sector==3)
    {
     t1=v->Vcout;
     t2=v->Vaout;
     v->Ta=0.5*(PWMPRD-t1-t2);
     v->Tb=v->Ta+t1;
     v->Tc=v->Tb+t2;
    }
  else if(sector==4)
      {
       t1=v->Vaout;
       t2=v->Vcout;
       v->Tc=0.5*(PWMPRD-t1-t2);
       v->Tb=v->Tc+t1;
       v->Ta=v->Tb+t2;
      }
  else if(sector==5)
        {
         t1=v->Vaout;
         t2=v->Vbout;
         v->Tb=0.5*(PWMPRD-t1-t2);
         v->Tc=v->Tb+t1;
         v->Ta=v->Tc+t2;
        }
  else if(sector==6)
          {
           t1=v->Vbout;
           t2=v->Vcout;
           v->Tc=0.5*(PWMPRD-t1-t2);
           v->Ta=v->Tc+t1;
           v->Tb=v->Ta+t2;
          }
  EvaRegs.CMPR1=(int)(v->Ta);
              EvaRegs.CMPR2=(int)(v->Tb);
              EvaRegs.CMPR3=(int)(v->Tc);
}
interrupt void svpwm_isr(void)
{
interrupttickers++;
void comput_Vs(struct SVPWM*v);

   EvaRegs.EVAIMRA.bit.T1PINT=1;
   EvaRegs.EVAIFRA.all=BIT7;
   PieCtrlRegs.PIEACK.all=PIEACK_GROUP2;
}

不知道哪里错了，不能输出波形，求大神指点，谢谢