[参考译文] TMS320F28379S：ECAP 没有对所有脉冲进行计数？

您好！

此问题的其他信息：

这是一个内部 PWM-Impulse、我检查了 PWM 信号是否正确无误。

这里是源代码的 Init 部分：

INT8_t BSP_CAP_Config_DCAC (void)
｛
/*将 GPIO24配置为 Xbar 输入7 (eCAP 1)*/
GPIO_setPadConfig (GPIO_DCAC_FAN_1_T转 速计引脚、GPIO_PIN_TYPE_STD)；
GPIO_setPinConfig (GPIO_DCAC_FAN_1_T转 速计_PIN_CONFIG_DEFAULT)；
GPIO_setionMode (GPIO_DCDIR_IN_FAN_MODE_IN)；GPIO_DEV_RET_RATAN_IN
GPIO_setQualificationMode (GPIO_DCAC_FAN_1_转 速计引脚、GPIO_QUAL_异 步)；
XBAR_setInputPin (ECAP_转 速计 FAN_1_XBAR_INPUT、GPIO_DCAC_FAN_1_转 速计引脚)；

//将 GPIO_set25配置为 Xbar 输入8 (eCAP_FAN
)

；GPIO_DEV_CONFIG (GPIO_DEV_CONFIG)；GPIO_DC_IN_CONFIG_IN_CONFIG_IN_CONFIG_IN_CONFIG_IN_GET_PROM_GET_GPIO_PIN_CONFIG_CONFIG_GET_IN_GET_GPIO_PIN_CONFIG_CONFIG_CONFIG_CONFIG_CONFIG_IN_GET_PROM_GET_IN_GET_IN_GET_PROT_GPIO_IN * GPIO_PIN_CONFIG_CONFIG_CONFIG_
GPIO_setQualificationMode (GPIO_DCAC_FAN_2_转 速计引脚、GPIO_QUAL_异 步)；
XBAR_setInputPin (ECAP_转 速计 FAN_2_XBAR_INPUT、GPIO_DCAC_FAN_2_转 速计引脚)；

//将 GPIO26配置为 Xbar 输入9


(eCAP_FAN)；GPIO_DEV_CONFIG (GPIO_DC_IN_IN_IN_INT_GPIO_DEV_PROM_INT_INT_GPIO_IN)
GPIO_setQualificationMode (GPIO_DCAC_FAN_3_转 速计引脚、GPIO_QUAL_异 步)；
XBAR_setInputPin (ECAP_转 速计 FAN_3_XBAR_INPUT、GPIO_DCAC_FAN_3_转 速计引脚)；

//将 GPIO_set27配置为 Xbar 输入10 (eCAP_FAN_DEV_CONFIG)


；GPIO_DC4_IN_CONFIG_IN_GET_GPIO_PIN_CONFIG_GET_GPIO_DEV_CONFIG_GET_IN_GET_GPIO_IN * GPIO_INDIRECT_GPIO_PIN_4_CONFIG_CONFIG_GET_CONFIG_IN_GET_GPIO_DEV_CONFIG_GET_IN_IN_GET_GPIO_IN_GET_GPIO_IN (GPIO_IN_4)
GPIO_setQualificationMode (GPIO_DCAC_FAN_4_转 速 O_PIN、GPIO_QUAL_异 步)；
XBAR_setInputPin (ECAP_转 速 o_FAN_4_XBAR_INPUT、GPIO_DCAC_FAN_4_转 速 o_PIN)；

返回0；
｝

/*********
*@简短初始化 bsp_cap
*@ePWM 基址的 param 基址
*@初始化返回结果0 - OK
*/
int8_t bsp_cap_Init_DCAC (void)
｛
/* ECAP 1 */
/*禁用、清除所有捕获标志和中断*/
ECAP_DisableInterrupt (ECAP_BASE_ADDRESS_TECO_FAN_1、(ECAP_ISR_SOURCE 捕捉事件_1 | ECAP_ISR_SOURCE 捕捉事件_2 | ECAP_ISR_SOURCE 捕捉事件事件3 | ECAP_ISR_SOURCE 捕捉事件4 | ECAP_ISR_SOURCE 计数器周期| ECAP_ARM_COUNTER_PERIOD)| ECAP_COUNTER_PERIOD
ECAP_clearInterrupt (ECAP_BASE_ADDRESS_TECO_FAN_1、(ECAP_ISR_SOURCE 捕捉事件_1 | ECAP_ISR_SOURCE 捕捉事件_2 | ECAP_ISR_SOURCE 捕捉事件事件3 | ECAP_ISR_SOURCE 捕捉事件4 | ECAP_ISR_SOURCE 计数器周期| ECAP_SOURCE 计数器周期)| ECAP_COUNTER_COUNTER_COUNTER_COUNTER_RACRACRACRACRACRACK_RACK_RACK_RACK_RACK_RACK_RACK_

/*禁用 CAP1-CAP4寄存器加载*/
ECAP_disableTimeStampCapture (ECAP_BASE_ADDRESS_TAN_1)；

/*配置 eCAP */
ECAP_STOPCounter (ECAP_BASE_ADDRESS_TDRO_FAN_1)；
ECAP_enableCaptureMode (ECAP_BASE_ADDRESS_转 速计 FAN_1)；

ECAP_setCaptureMode (ECAP_BASE_ADDRESS_FAN_1、ECAP_Continuous_CAPTURE_MODE、ECAP_EVENT_1)；
ECAP_setEventPolarity (ECAP_BASE_ADDRESS_FAN_1、ECAP_EVENT_1、ECAP_EVNT_RISTING _EDGE)；
ECAP_enableCounterResetOnEvent (ECAP_BASE_ADDRESS_TDRO_FAN_1、ECAP_EVENT_1)；

eCAP_enableLoadCounter (eAP_BASE_ADDRESS_转 速计 FAN_1)；
ECAP_startCounter (ECAP_BASE_ADDRESS_转 速计 FAN_1)；
ECAP_enableTimeStampCapture (ECAP_BASE_ADDRESS_TAN_1)；

/* ECAP 2 */
/*禁用、清除所有捕获标志和中断*/
ECAP_disableInterrupt (ECAP_BASE_ADDRESS_TCOK_FAN_2、(ECAP_ISR_SOURCE 捕捉事件_1 | ECAP_ISR_SOURCE 捕捉事件_2 | ECAP_ISR_SOURCE 捕捉事件事件3 | ECAP_ISR_SOURCE 捕捉事件4 | ECAP_ISR_SOURCE 计数器周期| ECAP_SOURCE 计数器周期)| ECAP_COUNTER_COUNTER_COUNTER_PERIOD
ECAP_clearInterrupt (ECAP_BASE_ADDRESS_TECO_FAN_2、(ECAP_ISR_SOURCE 捕捉事件_1 | ECAP_ISR_SOURCE 捕捉事件_2 | ECAP_ISR_SOURCE 捕捉事件事件3 | ECAP_ISR_SOURCE 捕捉事件4 | ECAP_ISR_SOURCE 计数器周期| ECAP_SOURCE 计数器周期)| ECAP_COUNTER_COUNTER_COUNTER_COUNTER_RACRACRACRACRACRACK_RACK_RACK_RACK_RACK_RACK_RACK_

/*禁用 CAP1-CAP4寄存器加载*/
ECAP_disableTimeStampCapture (ECAP_BASE_ADDRESS_TAN_2)；

/*配置 eCAP */
ECAP_STOPCounter (ECAP_BASE_ADDRESS_TDRO_FAN_2)；
ECAP_enableCaptureMode (ECAP_BASE_ADDRESS_TDRO_FAN_2)；

ECAP_setCaptureMode (ECAP_BASE_ADDRESS_FAN_2、ECAP_Continuous_CAPTURE_MODE、ECAP_EVENT_1)；
ECAP_setEventPolarity (ECAP_BASE_ADDRESS_FAN_2、ECAP_EVENT_1、ECAP_EVNT_RISTING _EDGE)；
ECAP_enableCounterResetOnEvent (ECAP_BASE_ADDRESS_T转 速计 FAN_2、ECAP_EVENT_1)；

eCAP_enableLoadCounter (eAP_BASE_ADDRESS_转 速计 FAN_2)；
ECAP_startCounter (ECAP_BASE_ADDRESS_TDRO_FAN_2)；
ECAP_enableTimeStampCapture (ECAP_BASE_ADDRESS_TDRO_FAN_2)；

/* ECAP 3 */
/*禁用、清除所有捕获标志和中断*/
ECAP_DisableInterrupt (ECAP_BASE_ADDRESS_TCOK_FAN_3、(ECAP_ISR_SOURCE 捕捉事件_1 | ECAP_ISR_SOURCE 捕捉事件_2 | ECAP_ISR_SOURCE 捕捉事件事件3 | ECAP_ISR_SOURCE 捕捉事件4 | ECAP_ISR_SOURCE 计数器周期| ECAP_SOURCE 计数器周期| ECAP_COUNTER_RACRACK_COUNTER_RACRACK_RACK_RACK_RACK_RACK_RACK_RACK_RACK_RACK_RACK_RA
ECAP_clearInterrupt (ECAP_base_address_t转 速 o_fAN_3、(ECAP_ISR_SOURCE 捕捉事件_1 | ECAP_ISR_SOURCE 捕捉事件_2 | ECAP_ISR_SOURCE 捕捉事件事件3 | ECAP_ISR_SOURCE 捕捉事件4 | ECAP_ISR_SOURCE 计数器_周期| ECAP_SOURCE 计数器_比较_周期)| ECAP_ARM_COUNTER_COUNTER_PERIOD

/*禁用 CAP1-CAP4寄存器加载*/
ECAP_disableTimeStampCapture (ECAP_BASE_ADDRESS_TAN_3)；

/*配置 eCAP */
ECAP_STOPCounter (ECAP_BASE_ADDRESS_TDRO_FAN_3)；
ECAP_enableCaptureMode (ECAP_BASE_ADDRESS_转 速计 FAN_3)；

ECAP_setCaptureMode (ECAP_BASE_ADDRESS_FAN_3、ECAP_Continuous_CAPTURE_MODE、ECAP_EVENT_1)；
ECAP_setEventPolarity (ECAP_BASE_ADDRESS_FAN_3、ECAP_EVENT_1、ECAP_EVNT_RISTING _EDGE)；
ECAP_enableCounterResetOnEvent (ECAP_BASE_ADDRESS_T转 速计 FAN_3、ECAP_EVENT_1)；

eCAP_enableLoadCounter (eAP_BASE_ADDRESS_转 速计 FAN_3)；
ECAP_startCounter (ECAP_BASE_ADDRESS_转 速计 FAN_3)；
ECAP_enableTimeStampCapture (ECAP_BASE_ADDRESS_TAN_3)；


/* ECAP 4 */
/*禁用、清除所有捕获标志和中断*/
ECAP_DisableInterrupt (ECAP_BASE_ADDRESS_TCOK_FAN_4、(ECAP_ISR_SOURCE 捕捉事件_1 | ECAP_ISR_SOURCE 捕捉事件_2 | ECAP_ISR_SOURCE 捕捉事件事件3 | ECAP_ISR_SOURCE 捕捉事件4 | ECAP_ISR_SOURCE 计数器周期| ECAP_ARM_COUNTER_PERIOD_PERIOD)| ECAP_AP_COUNTER_PERIOD | ECAP_PERIOD
ECAP_clearInterrupt (ECAP_base_address_t转 速 o_fAN_4、(ECAP_ISR_SOURCE 捕捉事件_1 | ECAP_ISR_SOURCE 捕捉事件_2 | ECAP_ISR_SOURCE 捕捉事件事件3 | ECAP_ISR_SOURCE 捕捉事件4 | ECAP_ISR_SOURCE 计数器_周期| ECAP_SOURCE 计数器_比较_周期)| ECAP_ARM_COUNTER_COUNTER_PERIOD

/*禁用 CAP1-CAP4寄存器加载*/
ECAP_disableTimeStampCapture (ECAP_BASE_ADDRESS_TAN_4)；

/*配置 eCAP */
ECAP_STOPCounter (ECAP_BASE_ADDRESS_转 速计 FAN_4)；
ECAP_enableCaptureMode (ECAP_BASE_ADDRESS_转 速计 FAN_4)；

ECAP_setCaptureMode (ECAP_BASE_ADDRESS_FAN_4、ECAP_Continuous_CAPTURE_MODE、ECAP_EVENT_1)；
ECAP_setEventPolarity (ECAP_BASE_ADDRESS_FAN_4、ECAP_EVENT_1、ECAP_EVNT_RISTING _EDGE)；
ECAP_enableCounterResetOnEvent (ECAP_BASE_ADDRESS_T转 速计 FAN_4、ECAP_EVENT_1)；

eCAP_enableLoadCounter (eAP_BASE_ADDRESS_转 速计 FAN_4)；
ECAP_startCounter (ECAP_BASE_ADDRESS_转 速计 FAN_4)；
ECAP_enableTimeStampCapture (ECAP_BASE_ADDRESS_TAN_4)；

返回0;
｝