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# # old_revision [d8ed90db2d4284a290224447c40a0d9cef3fbc31] # new_revision [9f05a1eb606ea1c0421aa4a0b25b83b4fe4a20c8] # # add_file "timer.h" # content [22e6b547150be529a916f8f29060e07a0b1cd5a9] # ============================================================ --- /dev/null +++ timer.h 22e6b547150be529a916f8f29060e07a0b1cd5a9 @@ -0,0 +1,45 @@ +#ifndef __TIMER_H +#define __TIMER_H + +#include "types.h" + +#define TIMER_PCLK 14745600 +#define TIMER_PRESCALE 0 + +#define TIMER_SECOND (TIMER_PCLK/(TIMER_PRESCALE+1)) +#define TIMER_MS (TIMER_SECOND/1000) +#define TIMER_US (TIMER_SECOND/1000000) + +#define PWM_MAX 14745 +#if 0 +#define PWM_PERIOD 58980 +#endif +#define PWM_PERIOD ((4*PWM_MAX)+1) + +#define TIMER_INPUT_TIMEOUT (TIMER_PCLK/10) +#define TIMER_CPPM_SYNC 40000 + +#define TIMER_CH(x) (timer_map[x]) + +extern volatile unsigned int timer1_width[]; +extern volatile unsigned int timer1_cppm[]; +extern unsigned int timer_map[]; + +void init_timer(void); +unsigned int timer_read(void); +void timer_delay_clocks(unsigned int clocks); +void timer_set_period(unsigned int period); +void timer_set_pwm_value(int channel, int value); +void timer_set_pwm_invalid(int channel); +bool timer_valid(int channel); +bool timer_allvalid(void); + +#define timer_delay_us(x) timer_delay_clocks((x)*TIMER_US) +#define timer_delay_ms(x) timer_delay_clocks((x)*TIMER_MS) + +#ifdef TIMER_CPPM +#define timer_input(ch) (timer1_cppm[TIMER_CH(ch)]) +#else +#define timer_input(ch) (timer1_width[TIMER_CH(ch)]) +#endif +#endif /* __TIMER_H */