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@ -9,6 +9,9 @@ hw_timer_t * _uclockTimer = NULL; |
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//portMUX_TYPE _uclockTimerMux = portMUX_INITIALIZER_UNLOCKED;
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//#define ATOMIC(X) portENTER_CRITICAL_ISR(&_uclockTimerMux); X; portEXIT_CRITICAL_ISR(&_uclockTimerMux);
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// for saving the initial clock sate
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uint32_t _init_clock; |
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// FreeRTOS main clock task size in bytes
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#define CLOCK_STACK_SIZE 5*1024 // adjust for your needs, a sequencer with heavy serial handling should be large in size
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TaskHandle_t taskHandle; |
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@ -41,25 +44,34 @@ void clockTask(void *pvParameters) |
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void initTimer(uint32_t init_clock) |
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{ |
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// save the initial clock value
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_init_clock = init_clock; |
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// initialize the mutex for shared resource access
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_mutex = xSemaphoreCreateMutex(); |
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// create the clockTask
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xTaskCreate(clockTask, "clockTask", CLOCK_STACK_SIZE, NULL, 1, &taskHandle); |
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_uclockTimer = timerBegin(TIMER_ID, 80, true); |
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//_uclockTimer = timerBegin(TIMER_ID, 80, true);
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_uclockTimer = timerBegin(1000000); // Frequência de 1 MHz
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// attach to generic uclock ISR
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timerAttachInterrupt(_uclockTimer, &handlerISR, false); |
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timerAttachInterrupt(_uclockTimer, &handlerISR); |
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//timerAttachInterrupt(_uclockTimer, &handlerISR, false);
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// init clock tick time
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timerAlarmWrite(_uclockTimer, init_clock, true);
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//timerAlarmWrite(_uclockTimer, init_clock, true);
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// activate it!
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timerAlarmEnable(_uclockTimer); |
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//timerAlarmEnable(_uclockTimer);
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// init and activate clock
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timerAlarm(_uclockTimer, _init_clock, true, 0); |
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} |
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void setTimer(uint32_t us_interval) |
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{ |
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timerAlarmWrite(_uclockTimer, us_interval, true);
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//timerAlarmWrite(_uclockTimer, us_interval, true);
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timerAlarm(_uclockTimer, _init_clock, true, 0); |
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} |