pwm.h File Reference

Go to the source code of this file.

Macros
PWM period set helpers
The period cell in the PWM specifier needs to be provided in nanoseconds. However, in some applications it is more convenient to use another scale.
#define	PWM_NSEC(x)   (x)
#define	PWM_USEC(x)   (PWM_NSEC(x) * 1000UL)
#define	PWM_MSEC(x)   (PWM_USEC(x) * 1000UL)
#define	PWM_SEC(x)   (PWM_MSEC(x) * 1000UL)
#define	PWM_HZ(x)   (PWM_SEC(1UL) / (x))
#define	PWM_KHZ(x)   (PWM_HZ((x) * 1000UL))
PWM polarity flags
The PWM_POLARITY_* flags are used with pwm_set_cycles(), pwm_set() or pwm_configure_capture() to specify the polarity of a PWM channel. The flags are on the lower 8bits of the pwm_flags_t
#define	PWM_POLARITY_NORMAL   (0 << 0)
#define	PWM_POLARITY_INVERTED   (1 << 0)