28035 trip Zone和AD采样中断

只看该作者 · 2014-9-30 09:39

EPWM1的初始化程序中已经初始化TZ代码如下：
         EALLOW;
      EPwm1Regs.TZCTL.bit.TZA = TZ_NO_CHANGE;  //EPwm1A output is not changed
      EPwm1Regs.TZCTL.bit.TZB = TZ_FORCE_LO; //Force EPWMxB to a low state

      EPwm1Regs.TZEINT.bit.OST = 1;          //Enable OST Interrupt
      EDIS;
并在AD中断中让计数寄存器Count1累加，代码如下
      Count1++;
      if(Count1 == 3000)
{
         Count1 = 0;
}
if(Count1 >= 2000 && Count1 < 3000)
{
            EALLOW;
            EPwm1Regs.TZFRC.bit.OST = 1;
         EDIS;
      }
      else
      {
            EALLOW;
            EPwm1Regs.TZFRC.bit.OST = 0;
            EPwm1Regs.TZCLR.bit.OST = 1;
            EPwm1Regs.TZCLR.bit.INT = 1;
            EDIS;
      }