Part Number:TMS320F280039COther Parts Discussed in Thread:SYSCONFIG
求助:ecap在连续模式下如何通过sysconfig配置触发cla任务?
目前已经配置成功连续模式,并能获取ecap寄存器值。但是想通过ecap触发cla,以实现咋icla中进行计算时,发现无法触发。
配置如下:
CLA:
CLA_setTriggerSource(CLA_TASK_2, CLA_TRIGGER_ECAP3INT);
ECAP:
void HRECAP_init(){
//
// HRCAP module configuration for HRECAP_HR_BASE (part of HRECAP_BASE).
//
// Enable High resolution clock
//
HRCAP_enableHighResolutionClock(HRECAP_HR_BASE);
DEVICE_DELAY_US(1); // 1us delay as mentioned in HRCAP chapter of TRM
//
// Enable High Resolution module
//
HRCAP_enableHighResolution(HRECAP_HR_BASE);
DEVICE_DELAY_US(1); // 1us delay as mentioned in HRCAP chapter of TRM
//
// Disables time stamp capture.
//
ECAP_disableTimeStampCapture(HRECAP_BASE);
//
// Stops Time stamp counter.
//
ECAP_stopCounter(HRECAP_BASE);
//
// Sets eCAP in Capture mode.
//
ECAP_enableCaptureMode(HRECAP_BASE);
//
// Sets the capture mode.
//
ECAP_setCaptureMode(HRECAP_BASE,ECAP_CONTINUOUS_CAPTURE_MODE,ECAP_EVENT_2);
//
// Sets the Capture event prescaler.
//
ECAP_setEventPrescaler(HRECAP_BASE, 0U);
//
// Sets the Capture event polarity.
//
ECAP_setEventPolarity(HRECAP_BASE,ECAP_EVENT_1,ECAP_EVNT_RISING_EDGE);
ECAP_setEventPolarity(HRECAP_BASE,ECAP_EVENT_2,ECAP_EVNT_FALLING_EDGE);
ECAP_setEventPolarity(HRECAP_BASE,ECAP_EVENT_3,ECAP_EVNT_RISING_EDGE);
ECAP_setEventPolarity(HRECAP_BASE,ECAP_EVENT_4,ECAP_EVNT_FALLING_EDGE);
//
// Configure counter reset on events
//
ECAP_disableCounterResetOnEvent(HRECAP_BASE,ECAP_EVENT_1);
ECAP_disableCounterResetOnEvent(HRECAP_BASE,ECAP_EVENT_2);
ECAP_disableCounterResetOnEvent(HRECAP_BASE,ECAP_EVENT_3);
ECAP_disableCounterResetOnEvent(HRECAP_BASE,ECAP_EVENT_4);
//
// Select eCAP input.
//
ECAP_selectECAPInput(HRECAP_BASE,ECAP_INPUT_INPUTXBAR7);
//
// Sets a phase shift value count.
//
ECAP_setPhaseShiftCount(HRECAP_BASE,0U);
//
// Enable counter loading with phase shift value.
//
ECAP_enableLoadCounter(HRECAP_BASE);
//
// Configures Sync out signal mode.
//
ECAP_setSyncOutMode(HRECAP_BASE,ECAP_SYNC_OUT_SYNCI);
//
// Resets eCAP counters and flags.
//
ECAP_resetCounters(HRECAP_BASE);
//
// Configures emulation mode.
//
ECAP_setEmulationMode(HRECAP_BASE,ECAP_EMULATION_FREE_RUN);
//
// Set up the source for sync-in pulse..
//
ECAP_setSyncInPulseSource(HRECAP_BASE,ECAP_SYNC_IN_PULSE_SRC_SYNCOUT_EPWM1);
//
// Starts Time stamp counter for HRECAP.
//
ECAP_startCounter(HRECAP_BASE);
//
// Enables time stamp capture for HRECAP.
//
ECAP_enableTimeStampCapture(HRECAP_BASE);
//
// Re-arms the eCAP module for HRECAP.
//
ECAP_reArm(HRECAP_BASE);
//
// HRECAP_HR_BASE Calibration Settings
//
// Set calibration period (register is in SYSCLK cycles), 1.6ms recommended
//
HWREG(HRECAP_HR_BASE + HRCAP_O_HRCALPRD) = (uint32_t) (120e9 * (1.6/1000));
//
// Configure in continuous calibration mode
//
HRCAP_setCalibrationMode(HRECAP_HR_BASE);
//
// Enable HRCAP calibration interrupts
//
HRCAP_enableCalibrationInterrupt(HRECAP_HR_BASE, (HRCAP_CALIBRATION_DONE| HRCAP_CALIBRATION_PERIOD_OVERFLOW));
//
// Start HR calibration
//
HRCAP_startCalibration(HRECAP_HR_BASE);
}
Jie Song:
已解决
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