File syn_soft_pwm.h¶

File List > output > syn_soft_pwm.h
#ifndef SYN_SOFT_PWM_H
#define SYN_SOFT_PWM_H

#include "../common/syn_defs.h"
#include "../drivers/syn_gpio.h"

#include <stdbool.h>

#ifdef __cplusplus
extern "C" {
#endif

/* ── Soft PWM descriptor ────────────────────────────────────────────────── */

typedef struct {
    SYN_GPIO_Pin pin;    
    uint16_t resolution; 
    uint16_t duty;       
    uint16_t counter;    
    bool active_high;    
} SYN_SoftPWM;

/* ── API ────────────────────────────────────────────────────────────────── */

void syn_soft_pwm_init(SYN_SoftPWM *pwm, SYN_GPIO_Pin pin, uint16_t resolution);

void syn_soft_pwm_set_duty(SYN_SoftPWM *pwm, uint16_t duty);

void syn_soft_pwm_set_percent(SYN_SoftPWM *pwm, uint8_t percent);

void syn_soft_pwm_tick(SYN_SoftPWM *pwm);

void syn_soft_pwm_service(SYN_SoftPWM *channels, size_t count);

static inline uint16_t syn_soft_pwm_get_duty(const SYN_SoftPWM *pwm)
{
    return pwm->duty;
}

#ifdef __cplusplus
}
#endif

#endif /* SYN_SOFT_PWM_H */