[参考译文] TMS320F280049C：两个脉冲之间的相移

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请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

https://e2e.ti.com/support/microcontrollers/c2000-microcontrollers-group/c2000/f/c2000-microcontrollers-forum/1234264/tms320f280049c-phase-shift-between-two-pulses

器件型号：TMS320F280049C

我正在使用 Code Composer Studio 生成两个脉冲之间的相移、使用 MATLAB C2000 VLOCKSET 我能够获得脉冲中的相移和死区。但在 Code Composer Studio 中、我无法这样做。我在下面给出了我所做的编码。求你帮我。

进行编程

*作者: Deepti
*/

#ifndef PWM_H_
#define PWM_H_
#include "driverlib.h"
#include "device.h"
//#include "board.h"

//声明
#define EPWM4_TIMER_TBPRD 5000UL
#define EPWM5_TIMER_TBPRD 5000UL
#define EPWM6_TIMER_TBPRD 5000UL
#define EPWM7_TIMER_TBPRD 5000UL

//函数原型
void initEPWM4 (void)；
void initEPWM5 (void)；
void initEPWM6 (void)；
void initEPWM7 (void)；

//调用 PWM4函数
void initEPWM4()
｛
//设置 TBCLK

ePWM_setTimeBasePeriod (EPWM4_BASE、EPWM4_TIMER_TBPRD)；

//同步输出事件

EPWM_setSyncOutPulseMode (EPWM4_BASE、EPWM_SYNC_OUT_PULSE_ON_COUNTER_ZERO)；
EPWM_setPhaseShift (EPWM4_BASE、0u)；
EPWM_setTimeBaseCounter (EPWM4_BASE、0U)；

//同步事件
//ePWM_setCountModeAfterSync (EPWM4_BASE、ePWM_COUNT_MODE_DOWN_AFTER_SYNC)；

//设置比较值
EPWM_setCounterCompareValue (EPWM4_base、EPWM_COUNTER_COMPARE_A、2500)；
EPWM_setCounterCompareValue (EPWM4_base、EPWM_COUNTER_COMPARE_B、0)；

//设置计数器模式

EPWM_setTimeBaseCounterMode (EPWM4_BASE、EPWM_COUNTER_MODE_UP_DOWN)；
EPWM_disablePhaseShiftLoad (EPWM4_BASE)；
EPWM_setClockPrescaler (EPWM4_base、EPWM_CLOCK_DIVIDER_1、EPWM_HSCLOCK_DIVIDER_1)；

//设置隐藏

EPWM_setCounterCompareShadowLoadMode (EPWM4_base、EPWM_COUNTER_COMPARE_A、EPWM_COMP_LOAD_ON_CNTR_ZERO)；
EPWM_setCounterCompareShadowLoadMode (EPWM4_base、EPWM_COUNTER_COMPARE_B、EPWM_COMP_LOAD_ON_CNTR_ZERO)；

//设置操作

EPWM_setActionQualifierAction (EPWM4_BASE、EPWM_AQ_OUTPUT_A、EPWM_AQ_OUTPUT_HIGH、EPWM_AQ_OUTPUT_ON_TIMEBASE_PERIOD)；
EPWM_setActionQualifierAction (EPWM4_BASE、EPWM_AQ_OUTPUT_A、EPWM_AQ_OUTPUT_LOW、EPWM_AQ_OUTPUT_ON_TIMEBASE_ZERO)；

}

//调用 PWM5函数
void initEPWM5()
｛
//设置 TBCLK

ePWM_setTimeBasePeriod (EPWM5_base、EPWM5_TIMER_TBPRD)；
EPWM_setTimeBaseCounter (EPWM5_base、0u)；

//同步事件
ePWM_setCountModeAfterSync (EPWM5_base、ePWM_COUNT_MODE_DOWN_AFTER_SYNC)；

//相移值

EPWM_setPhaseShift (EPWM5_base、2000u)；

//
ePWM_setSyncOutPulseMode (EPWM5_base、EPWM_SYNC_OUT_PULSE_ON_EPWMxSYNCIN)；

//设置比较值

EPWM_setCounterCompareValue (EPWM5_base、EPWM_COUNTER_COMPARE_A、2500U)；
EPWM_setCounterCompareValue (EPWM5_base、EPWM_COUNTER_COMPARE_B、0U)；

//设置计数器模式

EPWM_setTimeBaseCounterMode (EPWM5_base、EPWM_COUNTER_MODE_UP_DOWN)；
ePWM_setClockPrescaler (EPWM5_base、ePWM_CLOCK_DIVIDER_1、ePWM_HSCLOCK_DIVIDER_1)；

//设置隐藏

EPWM_setCounterCompareShadowLoadMode (EPWM5_base、EPWM_COUNTER_COMPARE_A、EPWM_COMP_LOAD_ON_CNTR_ZERO)；
EPWM_setCounterCompareShadowLoadMode (EPWM5_base、EPWM_COUNTER_COMPARE_B、EPWM_COMP_LOAD_ON_CNTR_ZERO)；

//设置操作

EPWM_setActionQualifierAction (EPWM5_base、EPWM_AQ_OUTPUT_A、EPWM_AQ_OUTPUT_HIGH、EPWM_AQ_OUTPUT_ON_TIMEBASE_PERIOD)；
EPWM_setActionQualifierAction (EPWM5_base、EPWM_AQ_OUTPUT_A、EPWM_AQ_OUTPUT_LOW、EPWM_AQ_OUTPUT_ON_TIMEBASE_ZERO)；
}

//调用 PWM6函数

/*void initEPWM6()
｛

//设置 TBCLK

ePWM_setTimeBasePeriod (EPWM6_BASE、EPWM6_TIMER_TBPRD)；
EPWM_setPhaseShift (EPWM6_BASE、0u)；
EPWM_setTimeBaseCounter (EPWM6_BASE、0u)；

//设置比较值

EPWM_setCounterCompareValue (EPWM6_BASE、EPWM_COUNTER_COMPARE_A、2500)；
EPWM_setCounterCompareValue (EPWM6_BASE、EPWM_COUNTER_COMPARE_B、0)；

//设置计数器模式

EPWM_setTimeBaseCounterMode (EPWM6_BASE、EPWM_COUNTER_MODE_UP_DOWN)；
EPWM_disablePhaseShiftLoad (EPWM6_BASE)；
ePWM_setClockPrescaler (EPWM6_BASE、ePWM_CLOCK_DIVIDER_1、ePWM_HSCLOCK_DIVIDER_1)；

//设置隐藏

EPWM_setCounterCompareShadowLoadMode (EPWM6_BASE、EPWM_COUNTER_COMPARE_A、EPWM_COMP_LOAD_ON_CNTR_ZERO)；
EPWM_setCounterCompareShadowLoadMode (EPWM6_BASE、EPWM_COUNTER_COMPARE_B、EPWM_COMP_LOAD_ON_CNTR_ZERO)；

//设置操作

EPWM_setActionQualifierAction (EPWM6_BASE、EPWM_AQ_OUTPUT_A、EPWM_AQ_OUTPUT_HIGH、EPWM_AQ_OUTPUT_ON_TIMEBASE_UP_CMPA)；
EPWM_setActionQualifierAction (EPWM6_BASE、EPWM_AQ_OUTPUT_A、EPWM_AQ_OUTPUT_LOW、EPWM_AQ_OUTPUT_ON_TIMEBASE_DOWN_CMPA)；

}

//调用 PWM7函数
void initEPWM7()
｛

//设置 TBCLK

ePWM_setTimeBasePeriod (EPWM7_BASE、EPWM7_TIMER_TBPRD)；
EPWM_setPhaseShift (EPWM7_BASE、2000u)；
EPWM_setTimeBaseCounter (EPWM7_BASE、0u)；

//设置比较值

EPWM_setCounterCompareValue (EPWM7_BASE、EPWM_COUNTER_COMPARE_A、2500)；
EPWM_setCounterCompareValue (EPWM7_BASE、EPWM_COUNTER_COMPARE_B、0)；

//设置计数器模式

EPWM_setTimeBaseCounterMode (EPWM7_BASE、EPWM_COUNTER_MODE_UP_DOWN)；
// ePWM_disablePhaseShiftLoad (EPWM6_BASE)；
EPWM_setClockPrescaler (EPWM7_BASE、EPWM_CLOCK_DIVIDER_1、EPWM_HSCLOCK_DIVIDER_1)；

//设置隐藏

EPWM_setCounterCompareShadowLoadMode (EPWM7_BASE、EPWM_COUNTER_COMPARE_A、EPWM_COMP_LOAD_ON_CNTR_ZERO)；
EPWM_setCounterCompareShadowLoadMode (EPWM7_BASE、EPWM_COUNTER_COMPARE_B、EPWM_COMP_LOAD_ON_CNTR_ZERO)；

//设置操作

EPWM_setActionQualifierAction (EPWM7_BASE、EPWM_AQ_OUTPUT_A、EPWM_AQ_OUTPUT_HIGH、EPWM_AQ_OUTPUT_ON_TIMEBASE_UP_CMPA)；
EPWM_setActionQualifierAction (EPWM7_BASE、EPWM_AQ_OUTPUT_A、EPWM_AQ_OUTPUT_LOW、EPWM_AQ_OUTPUT_ON_TIMEBASE_DOWN_CMPA)；

}

*/
#endif PWM_H_

2 年多前

0 admin 2 年多前

TI__Guru**** 2578945 points

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

您好！

您需要使用 EPWM_enablePhaseShiftLoad 函数启用相移、以使用相移。

我在您的代码中没有看到任何可配置死区的东西、您是否想在 ePWM 输出上使用死区？

谢谢！

Luke

0 admin 2 年多前

TI__Guru**** 2578945 points

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

/*
 * pwm.h
 *
 *  Created on: 03-Jun-2023
 *      Author: Deepti
 */

#ifndef PWM_H_
#define PWM_H_
#include "driverlib.h"
#include "device.h"
//#include "board.h"

// Declaration
#define EPWM4_TIMER_TBPRD    5000UL
#define EPWM5_TIMER_TBPRD    5000UL
#define EPWM6_TIMER_TBPRD    5000UL
#define EPWM8_TIMER_TBPRD    5000UL


// function prototype
void initEPWM4(void);
void initEPWM5(void);
void initEPWM6(void);
void initEPWM8(void);

// PWM4 FUNCTION CALLED
void initEPWM4()
{
    // Set-up TBCLK

    EPWM_setTimeBasePeriod(EPWM4_BASE, EPWM4_TIMER_TBPRD);

    // SYNC OUT EVENT

   EPWM_setSyncOutPulseMode(EPWM4_BASE,EPWM_SYNC_OUT_PULSE_ON_COUNTER_ZERO);
    //EPWM_setPhaseShift(EPWM4_BASE, 0U);
    EPWM_setTimeBaseCounter(EPWM4_BASE, 0U);


    // SYNC EVENT
    //EPWM_setCountModeAfterSync(EPWM4_BASE, EPWM_COUNT_MODE_DOWN_AFTER_SYNC);

        // Set Compare values
        EPWM_setCounterCompareValue(EPWM4_BASE,EPWM_COUNTER_COMPARE_A,2500);
        EPWM_setCounterCompareValue(EPWM4_BASE, EPWM_COUNTER_COMPARE_B,0);

    // Set up counter mode

    EPWM_setTimeBaseCounterMode(EPWM4_BASE, EPWM_COUNTER_MODE_UP_DOWN);
    EPWM_disablePhaseShiftLoad(EPWM4_BASE);
    EPWM_setClockPrescaler(EPWM4_BASE,EPWM_CLOCK_DIVIDER_1, EPWM_HSCLOCK_DIVIDER_1);

        // Set up shadowing

    EPWM_setCounterCompareShadowLoadMode(EPWM4_BASE, EPWM_COUNTER_COMPARE_A,EPWM_COMP_LOAD_ON_CNTR_ZERO);
    EPWM_setCounterCompareShadowLoadMode(EPWM4_BASE, EPWM_COUNTER_COMPARE_B, EPWM_COMP_LOAD_ON_CNTR_ZERO);

       // Set actions

    EPWM_setActionQualifierAction(EPWM4_BASE,EPWM_AQ_OUTPUT_A, EPWM_AQ_OUTPUT_HIGH,EPWM_AQ_OUTPUT_ON_TIMEBASE_PERIOD);
    EPWM_setActionQualifierAction(EPWM4_BASE,EPWM_AQ_OUTPUT_A, EPWM_AQ_OUTPUT_LOW, EPWM_AQ_OUTPUT_ON_TIMEBASE_ZERO);

}

      // PWM5 FUNCTION CALLED
void initEPWM5()
{
      // Set-up TBCLK

    EPWM_setTimeBasePeriod(EPWM5_BASE, EPWM5_TIMER_TBPRD);
    EPWM_setTimeBaseCounter(EPWM5_BASE, 0U);

    // SYNC EVENT
    EPWM_setCountModeAfterSync(EPWM5_BASE, EPWM_COUNT_MODE_DOWN_AFTER_SYNC);

    // PHASE SHIFT VALUE

    EPWM_setPhaseShift(EPWM5_BASE, 2000U);
    EPWM_enablePhaseShiftLoad(EPWM5_BASE);

    //
  //  EPWM_setSyncOutPulseMode(EPWM5_BASE,EPWM_SYNC_OUT_PULSE_ON_EPWMxSYNCIN);

     // Set Compare values

    EPWM_setCounterCompareValue(EPWM5_BASE,EPWM_COUNTER_COMPARE_A,2500U);
    EPWM_setCounterCompareValue(EPWM5_BASE, EPWM_COUNTER_COMPARE_B,0U);

    // Set up counter mode

    EPWM_setTimeBaseCounterMode(EPWM5_BASE, EPWM_COUNTER_MODE_UP_DOWN);
    EPWM_setClockPrescaler(EPWM5_BASE,EPWM_CLOCK_DIVIDER_1, EPWM_HSCLOCK_DIVIDER_1);

   // Set up shadowing

    EPWM_setCounterCompareShadowLoadMode(EPWM5_BASE, EPWM_COUNTER_COMPARE_A,EPWM_COMP_LOAD_ON_CNTR_ZERO);
    EPWM_setCounterCompareShadowLoadMode(EPWM5_BASE, EPWM_COUNTER_COMPARE_B, EPWM_COMP_LOAD_ON_CNTR_ZERO);

   // Set actions

    EPWM_setActionQualifierAction(EPWM5_BASE,EPWM_AQ_OUTPUT_A, EPWM_AQ_OUTPUT_HIGH,EPWM_AQ_OUTPUT_ON_TIMEBASE_PERIOD);
    EPWM_setActionQualifierAction(EPWM5_BASE,EPWM_AQ_OUTPUT_A, EPWM_AQ_OUTPUT_LOW,EPWM_AQ_OUTPUT_ON_TIMEBASE_ZERO);
}

   // PWM6 FUNCTION CALLED

void initEPWM6()
{

    // Set-up TBCLK

    EPWM_setTimeBasePeriod(EPWM6_BASE, EPWM6_TIMER_TBPRD);

    // SYNC OUT EVENT

    EPWM_setSyncOutPulseMode(EPWM4_BASE,EPWM_SYNC_OUT_PULSE_ON_COUNTER_ZERO);
    //EPWM_setPhaseShift(EPWM6_BASE, 0U);
    EPWM_setTimeBaseCounter(EPWM6_BASE, 0U);

    // Set Compare values

    EPWM_setCounterCompareValue(EPWM6_BASE,EPWM_COUNTER_COMPARE_A,2500);
    EPWM_setCounterCompareValue(EPWM6_BASE, EPWM_COUNTER_COMPARE_B,0);

    // Set up counter mode

    EPWM_setTimeBaseCounterMode(EPWM6_BASE, EPWM_COUNTER_MODE_UP_DOWN);
    EPWM_disablePhaseShiftLoad(EPWM6_BASE);
    EPWM_setClockPrescaler(EPWM6_BASE,EPWM_CLOCK_DIVIDER_1, EPWM_HSCLOCK_DIVIDER_1);

    // Set up shadowing

    EPWM_setCounterCompareShadowLoadMode(EPWM6_BASE, EPWM_COUNTER_COMPARE_A,EPWM_COMP_LOAD_ON_CNTR_ZERO);
    EPWM_setCounterCompareShadowLoadMode(EPWM6_BASE, EPWM_COUNTER_COMPARE_B, EPWM_COMP_LOAD_ON_CNTR_ZERO);

    // Set actions

    EPWM_setActionQualifierAction(EPWM6_BASE,EPWM_AQ_OUTPUT_A, EPWM_AQ_OUTPUT_HIGH,EPWM_AQ_OUTPUT_ON_TIMEBASE_PERIOD);
    EPWM_setActionQualifierAction(EPWM6_BASE,EPWM_AQ_OUTPUT_A, EPWM_AQ_OUTPUT_LOW,EPWM_AQ_OUTPUT_ON_TIMEBASE_ZERO);

}

   // PWM7 FUNCTION CALLED
void initEPWM8()
{
      // Set-up TBCLK

    EPWM_setTimeBasePeriod(EPWM8_BASE, EPWM8_TIMER_TBPRD);
    EPWM_setTimeBaseCounter(EPWM8_BASE, 0U);

    // SYNC EVENT
    EPWM_setCountModeAfterSync(EPWM8_BASE, EPWM_COUNT_MODE_DOWN_AFTER_SYNC);

    // PHASE SHIFT VALUE

    EPWM_setPhaseShift(EPWM8_BASE, 2000U);
    EPWM_enablePhaseShiftLoad(EPWM8_BASE);

    //
  //  EPWM_setSyncOutPulseMode(EPWM5_BASE,EPWM_SYNC_OUT_PULSE_ON_EPWMxSYNCIN);

     // Set Compare values

    EPWM_setCounterCompareValue(EPWM8_BASE,EPWM_COUNTER_COMPARE_A,2500U);
    EPWM_setCounterCompareValue(EPWM8_BASE, EPWM_COUNTER_COMPARE_B,0U);

    // Set up counter mode

    EPWM_setTimeBaseCounterMode(EPWM8_BASE, EPWM_COUNTER_MODE_UP_DOWN);
    EPWM_setClockPrescaler(EPWM8_BASE,EPWM_CLOCK_DIVIDER_1, EPWM_HSCLOCK_DIVIDER_1);

   // Set up shadowing

    EPWM_setCounterCompareShadowLoadMode(EPWM8_BASE, EPWM_COUNTER_COMPARE_A,EPWM_COMP_LOAD_ON_CNTR_ZERO);
    EPWM_setCounterCompareShadowLoadMode(EPWM8_BASE, EPWM_COUNTER_COMPARE_B, EPWM_COMP_LOAD_ON_CNTR_ZERO);

   // Set actions

    EPWM_setActionQualifierAction(EPWM8_BASE,EPWM_AQ_OUTPUT_A, EPWM_AQ_OUTPUT_HIGH,EPWM_AQ_OUTPUT_ON_TIMEBASE_PERIOD);
    EPWM_setActionQualifierAction(EPWM8_BASE,EPWM_AQ_OUTPUT_A, EPWM_AQ_OUTPUT_LOW,EPWM_AQ_OUTPUT_ON_TIMEBASE_ZERO);
}


#endif  PWM_H_

根据该程序、我将得到 EPWM5的相移、但 ePWM 8与 EPWM4、6同相、即使给定了相移函数。我在后面附上了同样的代码。

0 admin 2 年多前

TI__Guru**** 2578945 points

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

EPWM8将始终通过 EPWM7同步。请参阅 ePWM 章节中的此图：

如果未从 EPWM7生成 SYNCOUT 脉冲、EPWM8将不会接收任何 SYNCIN 信号、但可以将 EPWM7配置为选择 EPWM4 SyncOut 作为其 SYNCIN 信号、然后配置 EPWM7在使用 TBCTL 寄存器接收 SYNCIN 脉冲时生成 SYNCOUT 脉冲。这将有效地导致 EPWM8由 EPWM4同步。

C2000™︎ 微控制器（参考译文帖）

C2000™︎ 微控制器（参考译文帖）(Read Only)

[参考译文] TMS320F280049C：两个脉冲之间的相移