Pulse Width Modulation (PWM) driver for SAM.

#include "pwm.h"

Macros
#define	PWM_CLOCK_DIV_MAX 256

#define	PWM_CLOCK_PRE_MAX 11

#define	PWM_WPCR_WPCMD_DISABLE_SW_PROT (PWM_WPCR_WPCMD(0))

#define	PWM_WPCR_WPCMD_ENABLE_HW_PROT (PWM_WPCR_WPCMD(2))

#define	PWM_WPCR_WPCMD_ENABLE_SW_PROT (PWM_WPCR_WPCMD(1))

#define	PWM_WPCR_WPKEY_PASSWD 0x50574D00

Functions
void	pwm_channel_disable (Pwm *p_pwm, uint32_t ul_channel)
	Disable the PWM channel. More...

void	pwm_channel_disable_interrupt (Pwm *p_pwm, uint32_t ul_event, uint32_t ul_fault)
	Disable the interrupt of a channel counter event and fault protection. More...

void	pwm_channel_enable (Pwm *p_pwm, uint32_t ul_channel)
	Enable the PWM channel. More...

void	pwm_channel_enable_interrupt (Pwm *p_pwm, uint32_t ul_event, uint32_t ul_fault)
	Enable the interrupt of a channel counter event and fault protection. More...

uint32_t	pwm_channel_get_counter (Pwm p_pwm, pwm_channel_t p_channel)
	Return channel counter value. More...

uint32_t	pwm_channel_get_interrupt_mask (Pwm *p_pwm)
	Get channel counter event and fault protection trigger interrupt mask. More...

uint32_t	pwm_channel_get_interrupt_status (Pwm *p_pwm)
	Get channel counter event and fault protection trigger interrupt status. More...

uint32_t	pwm_channel_get_status (Pwm *p_pwm)
	Check which PWM channel is enabled. More...

uint32_t	pwm_channel_init (Pwm p_pwm, pwm_channel_t p_channel)
	Initialize one PWM channel. More...

void	pwm_channel_update_dead_time (Pwm p_pwm, pwm_channel_t p_channel, uint16_t us_deadtime_pwmh, uint16_t us_deadtime_pwml)
	Change dead-time value for PWM outputs. More...

uint32_t	pwm_channel_update_duty (Pwm p_pwm, pwm_channel_t p_channel, uint32_t ul_duty)
	Change the duty cycle of the PWM channel. More...

void	pwm_channel_update_output (Pwm p_pwm, pwm_channel_t p_channel, pwm_output_t *p_output, bool b_sync)
	Change output selection of the PWM channel. More...

uint32_t	pwm_channel_update_period (Pwm p_pwm, pwm_channel_t p_channel, uint32_t ul_period)
	Change the period of the PWM channel. More...

void	pwm_channel_update_polarity_mode (Pwm p_pwm, pwm_channel_t p_channel, bool polarity_inversion_flag, pwm_level_t polarity_value)
	Change polarity mode. More...

void	pwm_channel_update_spread (Pwm p_pwm, pwm_channel_t p_channel, uint32_t ul_spread)
	Change spread spectrum value. More...

static uint32_t	pwm_clocks_generate (uint32_t ul_frequency, uint32_t ul_mck)
	Find a prescaler/divisor couple to generate the desired ul_frequency from ul_mck. More...

uint32_t	pwm_cmp_change_setting (Pwm p_pwm, pwm_cmp_t p_cmp)
	Change the setting of PWM comparison. More...

void	pwm_cmp_disable_interrupt (Pwm *p_pwm, uint32_t ul_sources, pwm_cmp_interrupt_t type)
	Disable the interrupt of comparison. More...

void	pwm_cmp_enable_interrupt (Pwm *p_pwm, uint32_t ul_sources, pwm_cmp_interrupt_t type)
	Enable the interrupt of comparison. More...

uint32_t	pwm_cmp_get_period_counter (Pwm *p_pwm, uint32_t ul_cmp_unit)
	Report the value of the comparison period counter. More...

uint32_t	pwm_cmp_get_update_counter (Pwm *p_pwm, uint32_t ul_cmp_unit)
	Report the value of the comparison update period counter. More...

uint32_t	pwm_cmp_init (Pwm p_pwm, pwm_cmp_t p_cmp)
	Initialize PWM comparison unit. More...

void	pwm_disable_protect (Pwm *p_pwm, uint32_t ul_group)
	Disable PWM write protect. More...

void	pwm_enable_protect (Pwm *p_pwm, uint32_t ul_group, bool b_sw)
	Enable PWM write protect. More...

void	pwm_fault_clear_status (Pwm *p_pwm, pwm_fault_id_t id)
	Clear a fault input. More...

pwm_level_t	pwm_fault_get_input_level (Pwm *p_pwm, pwm_fault_id_t id)
	Get the level of a fault input. More...

uint32_t	pwm_fault_get_status (Pwm *p_pwm)
	Get fault status. More...

uint32_t	pwm_fault_init (Pwm p_pwm, pwm_fault_t p_fault)
	Initialize the behavior of a fault input. More...

uint32_t	pwm_get_interrupt_mask (Pwm *p_pwm)
	Get interrupt mask of PDC transfer, synchronous channels and comparison. More...

uint32_t	pwm_get_interrupt_status (Pwm *p_pwm)
	Get interrupt status of PDC transfer, synchronous channels and comparison. More...

bool	pwm_get_protect_status (Pwm p_pwm, pwm_protect_t p_protect)
	Get PWM write protect status. More...

uint32_t	pwm_init (Pwm p_pwm, pwm_clock_t clock_config)
	Initialize the PWM source clock (clock A and clock B). More...

void	pwm_pdc_disable_interrupt (Pwm *p_pwm, uint32_t ul_sources)
	Disable the interrupt of PDC transfer. More...

void	pwm_pdc_enable_interrupt (Pwm *p_pwm, uint32_t ul_sources)
	Enable the interrupt of PDC transfer. More...

void	pwm_pdc_set_request_mode (Pwm *p_pwm, pwm_pdc_request_mode_t request_mode, uint32_t ul_cmp_unit)
	Set PDC transfer request mode. More...

void	pwm_set_dma_duty (Pwm *p_pwm, uint32_t ul_dma_duty_value)
	Set dma duty. More...

void	pwm_set_ext_trigger_mode (Pwm p_pwm, pwm_channel_t p_channel, uint32_t ul_mode)
	set external trigger mode. More...

void	pwm_stepper_motor_init (Pwm *p_pwm, pwm_stepper_motor_pair_t pair, bool b_enable_gray, bool b_down)
	Initialize PWM stepper motor mode. More...

void	pwm_sync_change_period (Pwm *p_pwm, uint32_t ul_update_period)
	Change the wanted time between each update of the synchronous channels. More...

void	pwm_sync_disable_interrupt (Pwm *p_pwm, uint32_t ul_sources)
	Disable the interrupt of synchronous channels. More...

void	pwm_sync_enable_interrupt (Pwm *p_pwm, uint32_t ul_sources)
	Enable the interrupt of synchronous channel. More...

uint32_t	pwm_sync_get_period_counter (Pwm *p_pwm)
	Get the value of the synchronization update period counter. More...

uint32_t	pwm_sync_init (Pwm *p_pwm, pwm_sync_update_mode_t mode, uint32_t ul_update_period)
	Initialize synchronous channels update mode and period. More...

void	pwm_sync_unlock_update (Pwm *p_pwm)
	Unlock the update of synchronous channels. More...

Microchip® Advanced Software Framework

Macros

Functions