hal
Hardware Abstraction Layer
pwm.h
Go to the documentation of this file.
1 
17 #ifndef _PWM_H
18 #define _PWM_H
19 
20 #include <stdbool.h>
21 #include "hal_types.h"
22 
30 hal_status_t hal_pwm_init(uint32_t pwm_frequency_hz);
31 
37 void hal_pwm_enable(bool enable);
38 
44 void hal_pwm_set_duty_cycle(uint8_t percent);
45 
51 void hal_pwm_set_frequency(uint32_t pwm_frequency_hz);
52 
53 #endif /* _PWM_H */
hal_types.h
Common types used across HAL modules.
hal_status_t
hal_status_t
Return type for HAL functions.
Definition: hal_types.h:17
hal_pwm_enable
void hal_pwm_enable(bool enable)
enable or disable the pwm signal. If disabled, nothing will show up on pins.
Definition: stm32f4_pwm.c:150
hal_pwm_set_duty_cycle
void hal_pwm_set_duty_cycle(uint8_t percent)
Sets the duty cycle 0% - 100% for the PWM signal.
Definition: stm32f4_pwm.c:168
hal_pwm_init
hal_status_t hal_pwm_init(uint32_t pwm_frequency_hz)
Initializes all the hardware (GPIO, TIMER, and CHANNEL) to deliver a PWM signal.
Definition: stm32f4_pwm.c:111
hal_pwm_set_frequency
void hal_pwm_set_frequency(uint32_t pwm_frequency_hz)
Sets the PWM signal frequency to a new value after the driver has already been initialized.
Definition: stm32f4_pwm.c:216