F280069使用PWM触发CLA

只看该作者 · 2020-10-19 23:31

请问有哪位大神配置过使用PWM触发CLA的功能吗？我配置了一下，程序烧进去刚开始CLA任务可以运行，但是运行一段时间就停掉了，完全找不到是啥问题

只看该作者 · 2020-10-19 23:37

附上我的程序
CLA初始化：
void InitCLA_Driver(void)
{
      // Copy the program and constants from FLASH to RAM before configuring
      // the CLA
      //
#if defined(_FLASH)
      memcpy((uint32_t *)&Cla1ProgRunStart, (uint32_t *)&Cla1ProgLoadStart,
         (uint32_t)&Cla1ProgLoadSize );
      memcpy((uint32_t *)&Cla1ConstRunStart, (uint32_t *)&Cla1ConstLoadStart,
         (uint32_t)&Cla1ConstLoadSize );
#endif //defined(_FLASH)
      EALLOW;
      // CLA Program will reside in RAMLS0 and data in RAMLS1, RAMLS2
      MemCfgRegs.LSxCLAPGM.bit.CLAPGM_LS0 = 1U;
      MemCfgRegs.LSxCLAPGM.bit.CLAPGM_LS1 = 0U;
      MemCfgRegs.LSxCLAPGM.bit.CLAPGM_LS2 = 0U;

      // Select CLA as the master of RAMLS0, RAMSL1, RAMLS2
      MemCfgRegs.LSxMSEL.bit.MSEL_LS0 = 1U;
      MemCfgRegs.LSxMSEL.bit.MSEL_LS1 = 1U;
      MemCfgRegs.LSxMSEL.bit.MSEL_LS2 = 1U;

      //
      // Suppressing #770-D conversion from pointer to smaller integer
      // The CLA address range is 16 bits so the addresses passed to the MVECT
      // registers will be in the lower 64KW address space. Turn the warning
      // back on after the MVECTs are assigned addresses
      //
#pragma diag_suppress=770
      //
      // Assign the task vectors and set the triggers for task 1 and 7
      //
      Cla1Regs.MVECT1 = (uint16_t)&Cla1Task1;

      DmaClaSrcSelRegs.CLA1TASKSRCSEL1.bit.TASK1 = CLA_TRIG_EPWM4INT;
      //
      // Enable Tasks 1.
      //
      Cla1Regs.MIER.bit.INT1 = 1U;
      EDIS;
}

PWM4初始化:
void intpwm(void)
{
   EALLOW;
   EPwm4Regs.TBPRD = SysPara.Ctrl_Freq;          // Control_ePWM 设定10k
   EPwm4Regs.TBPHS.bit.TBPHS = 0x0000;          // Phase is 0
   EPwm4Regs.TBCTR = 0x0000;                   // Clear counter

   /*Setup compare*/
   EPwm4Regs.CMPA.bit.CMPA = 0;  // (SysPara.Ctrl_Freq/3);//(SysPara.Ctrl_Freq/2);
   EPwm4Regs.CMPB.bit.CMPB = SysPara.Ctrl_Freq;

   /*Set actions*/
   EPwm4Regs.AQCTLA.bit.CAU = AQ_CLEAR;
   EPwm4Regs.AQCTLA.bit.CAD = AQ_SET;
   EPwm4Regs.AQCTLA.bit.CBU = AQ_SET;
   EPwm4Regs.AQCTLA.bit.CBD = AQ_CLEAR;

   /*Set actions*/
   EPwm4Regs.TBCTL.bit.CTRMODE = TB_COUNT_UPDOWN; // Count up and down
   EPwm4Regs.TBCTL.bit.PHSEN    = TB_DISABLE;       // Disable phase loading
   EPwm4Regs.TBCTL.bit.HSPCLKDIV = TB_DIV1;       // Clock ratio to SYSCLKOUT
   EPwm4Regs.TBCTL.bit.CLKDIV = TB_DIV1;

   /*Set INT*/
   EPwm4Regs.ETSEL.bit.INTSEL = ET_CTR_ZERO;       // Select INT on Zero event
   EPwm4Regs.ETSEL.bit.INTEN  = 1;                // Enable INT
   EPwm4Regs.ETPS.bit.INTPRD  = ET_1ST;          // Generate INT on 1rd event
   EPwm4Regs.ETCLR.bit.INT = 1;

   EPwm4Re4 should run freely in emulation mode
   //
   //EPwm4Regs.TBCTL.bit.FREE_SOFT = 2U;
   EDIS;
}
CLA中断:
{
__attribute__((interrupt)) void cla1_task1_isr(void){
EALLOW;
PieCtrlRegs.PIEACK.bit.ACK11 = 1U;       // Acknowledge the end-of-task interrupt for task 1
EPwm4Regs.ETCLR.bit.INT = 1;
PieCtrlRegs.PIEACK.all = PIEACK_GROUP3;
EDIS;
}