mirror of https://github.com/midilab/uClock
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29 lines
726 B
29 lines
726 B
2 years ago
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#include <Arduino.h>
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#define TIMER_ID 0
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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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// forward declaration of ISR
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void ARDUINO_ISR_ATTR uclockISR();
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void initTimer(uint32_t init_clock)
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{
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_uclockTimer = timerBegin(TIMER_ID, 80, true);
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// attach to generic uclock ISR
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timerAttachInterrupt(_uclockTimer, &uclockISR, true);
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// init clock tick time
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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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}
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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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}
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