pwm.h File Reference

HAL interface for PWM (Pulse Width Modulation) configuration and control. More...

#include "utils/timer_types.h"
#include <stdint.h>

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Classes
struct	PWM_Handle
	PWM handle structure linking timer and channel. More...

Functions
void	hal_pwm_init (PWM_Handle *pwm, uint32_t frequency, float dutyCycle)
	Initialize a PWM handle with the specified frequency and duty cycle.
void	hal_pwm_start (PWM_Handle *pwm)
	Start PWM signal generation.
void	hal_pwm_stop (PWM_Handle *pwm)
	Stop PWM signal generation.
void	hal_pwm_set_duty_cycle (PWM_Handle *pwm, float dutyCycle)
	Set the PWM duty cycle.
void	hal_pwm_set_frequency (PWM_Handle *pwm, uint32_t frequency)
	Set the PWM frequency.

Detailed Description

HAL interface for PWM (Pulse Width Modulation) configuration and control.

This header provides:

• PWM handle structure linking hardware timers and channels.
• Functions to initialize, start, stop, and configure PWM signals.

Copyright

© NAVROBOTEC PVT. LTD.

Function Documentation

hal_pwm_init()

void hal_pwm_init	(	PWM_Handle *	pwm,
		uint32_t	frequency,
		float	dutyCycle )

Initialize a PWM handle with the specified frequency and duty cycle.

Parameters

pwm	Pointer to the PWM handle.
frequency	PWM frequency in Hz.
dutyCycle	Duty cycle as a percentage (0.0 to 100.0).

Initialize a PWM handle with the specified frequency and duty cycle.

This function configures the timer to generate a PWM signal on the specified channel with the given frequency and duty cycle.

Parameters

pwm	Pointer to the PWM handle structure.
frequency	Desired PWM frequency in Hz.
dutyCycle	Duty cycle as a fraction (0.0f - 1.0f).

hal_pwm_set_duty_cycle()

void hal_pwm_set_duty_cycle	(	PWM_Handle *	pwm,
		float	dutyCycle )

Set the PWM duty cycle.

Parameters

pwm	Pointer to the PWM handle.
dutyCycle	Duty cycle as a percentage (0.0 to 100.0).

Set the PWM duty cycle.

Parameters

pwm	Pointer to the PWM handle structure.
dutyCycle	New duty cycle as a fraction (0.0f - 1.0f).

hal_pwm_set_frequency()

void hal_pwm_set_frequency	(	PWM_Handle *	pwm,
		uint32_t	frequency )

Set the PWM frequency.

Parameters

pwm	Pointer to the PWM handle.
frequency	PWM frequency in Hz.

Set the PWM frequency.

Note

This function is not yet implemented.

Parameters

pwm	Pointer to the PWM handle structure.
frequency	Desired PWM frequency in Hz.

hal_pwm_start()

void hal_pwm_start

(

PWM_Handle *

pwm

)

Start PWM signal generation.

Parameters

pwm	Pointer to the PWM handle.

Start PWM signal generation.

Parameters

pwm	Pointer to the PWM handle structure.

hal_pwm_stop()

void hal_pwm_stop

(

PWM_Handle *

pwm

)

Stop PWM signal generation.

Parameters

pwm	Pointer to the PWM handle.

Stop PWM signal generation.

This function disables the timer channel and stops the timer.

Parameters

pwm	Pointer to the PWM handle structure.