#include #include #include #include #include "clock.h" //Counted time volatile clock_time_t clock_datetime = 0; //Overflow interrupt ISR(TIMER1_COMPA_vect, ISR_BLOCK) { clock_datetime += 1; } //Initialise the clock void clock_init() { OCR1A = (((F_CPU / 1024) / 100) - 1); TCCR1B = ((1 << WGM12) | (1 << CS12) | (1 << CS10)); TIMSK1 = (1 << OCIE1A); } //Return time clock_time_t clock_time() { clock_time_t time; GlobalInterruptDisable(); time = clock_datetime; GlobalInterruptEnable(); return time; } >
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