PWM_V2

Collaboration diagram for PWM_V2:

Modules
	pwm channel definition
	pwm polarity definition
	pwm state definition
	pwm trigger adc source definition
	pwm interrupt enable definition
	pwm interrupt status definition
	pwm interrupt clear definition
	pwm feature control cmd definition

Data Structures
struct	bflb_pwm_v2_channel_config_s
	PWM channel configuration structure. More...
struct	bflb_pwm_v2_config_s
	PWM configuration structure. More...

Functions
void	bflb_pwm_v2_init (struct bflb_device_s *dev, const struct bflb_pwm_v2_config_s *config)
	Initialize pwm. More...
void	bflb_pwm_v2_deinit (struct bflb_device_s *dev)
	Deinitialize pwm. More...
void	bflb_pwm_v2_start (struct bflb_device_s *dev)
	Start pwm output. More...
void	bflb_pwm_v2_stop (struct bflb_device_s *dev)
	Stop pwm output. More...
void	bflb_pwm_v2_set_period (struct bflb_device_s *dev, uint16_t period)
	Set pwm period to change pwm frequence. Frequcence(hz) = pwm source clock /div/period. More...
float	bflb_pwm_v2_get_frequency (struct bflb_device_s *dev)
	Get pwm frequcency. More...
void	bflb_pwm_v2_channel_init (struct bflb_device_s *dev, uint8_t ch, struct bflb_pwm_v2_channel_config_s *config)
	Config pwm channel. More...
void	bflb_pwm_v2_channel_set_threshold (struct bflb_device_s *dev, uint8_t ch, uint16_t low_threhold, uint16_t high_threhold)
	Set pwm dutycycle. Dutycycle(%) = (high_threhold - low_threhold)/period * 100%. More...
void	bflb_pwm_v2_channel_positive_start (struct bflb_device_s *dev, uint8_t ch)
	Start pwm positive output. More...
void	bflb_pwm_v2_channel_negative_start (struct bflb_device_s *dev, uint8_t ch)
	Start pwm negative output. More...
void	bflb_pwm_v2_channel_positive_stop (struct bflb_device_s *dev, uint8_t ch)
	Stop pwm positive output. More...
void	bflb_pwm_v2_channel_negative_stop (struct bflb_device_s *dev, uint8_t ch)
	Stop pwm negative output. More...
void	bflb_pwm_v2_int_enable (struct bflb_device_s *dev, uint32_t int_en, bool enable)
	Enable pwm interrupt. More...
uint32_t	bflb_pwm_v2_get_intstatus (struct bflb_device_s *dev)
	Get pwm interrupt status. More...
void	bflb_pwm_v2_int_clear (struct bflb_device_s *dev, uint32_t int_clear)
	Clear pwm interrupt status. More...
int	bflb_pwm_v2_feature_control (struct bflb_device_s *dev, int cmd, size_t arg)
	Control pwm feature. More...

Detailed Description

Function Documentation

bflb_pwm_v2_channel_init()

void bflb_pwm_v2_channel_init	(	struct bflb_device_s *	dev,
		uint8_t	ch,
		struct bflb_pwm_v2_channel_config_s *	config
	)

Config pwm channel.

Parameters

[in]	dev	device handle
[in]	ch	channel number
[in]	config	pointer to save pwm channel config

bflb_pwm_v2_channel_negative_start()

void bflb_pwm_v2_channel_negative_start	(	struct bflb_device_s *	dev,
		uint8_t	ch
	)

Start pwm negative output.

Parameters

[in]	dev	device handle
[in]	ch	channel number

bflb_pwm_v2_channel_negative_stop()

void bflb_pwm_v2_channel_negative_stop	(	struct bflb_device_s *	dev,
		uint8_t	ch
	)

Stop pwm negative output.

Parameters

[in]	dev	device handle
[in]	ch	channel number

bflb_pwm_v2_channel_positive_start()

void bflb_pwm_v2_channel_positive_start	(	struct bflb_device_s *	dev,
		uint8_t	ch
	)

Start pwm positive output.

Parameters

[in]	dev	device handle
[in]	ch	channel number

bflb_pwm_v2_channel_positive_stop()

void bflb_pwm_v2_channel_positive_stop	(	struct bflb_device_s *	dev,
		uint8_t	ch
	)

Stop pwm positive output.

Parameters

[in]	dev	device handle
[in]	ch	channel number

bflb_pwm_v2_channel_set_threshold()

void bflb_pwm_v2_channel_set_threshold	(	struct bflb_device_s *	dev,
		uint8_t	ch,
		uint16_t	low_threhold,
		uint16_t	high_threhold
	)

Set pwm dutycycle. Dutycycle(%) = (high_threhold - low_threhold)/period * 100%.

Parameters

[in]	dev	device handle
[in]	ch	channel number
[in]	low_threhold	pwm low threhold
[in]	high_threhold	pwm high threhold

bflb_pwm_v2_deinit()

void bflb_pwm_v2_deinit

(

struct bflb_device_s *

dev

)

Deinitialize pwm.

Parameters

[in]

dev

device handle

bflb_pwm_v2_feature_control()

int bflb_pwm_v2_feature_control	(	struct bflb_device_s *	dev,
		int	cmd,
		size_t	arg
	)

Control pwm feature.

Parameters

[in]	dev	device handle
[in]	cmd	feature command, use pwm feature control cmd definition
[in]	arg	user data

Returns

A negated errno value on failure.

bflb_pwm_v2_get_frequency()

float bflb_pwm_v2_get_frequency

(

struct bflb_device_s *

dev

)

Get pwm frequcency.

Parameters

[in]

dev

device handle

Returns

frequcency

bflb_pwm_v2_get_intstatus()

uint32_t bflb_pwm_v2_get_intstatus

(

struct bflb_device_s *

dev

)

Get pwm interrupt status.

Parameters

[in]

dev

device handle

Returns

interrupt status, use pwm interrupt status definition

bflb_pwm_v2_init()

void bflb_pwm_v2_init	(	struct bflb_device_s *	dev,
		const struct bflb_pwm_v2_config_s *	config
	)

Initialize pwm.

Parameters

[in]	dev	device handle
[in]	config	pointer to save pwm config

bflb_pwm_v2_int_clear()

void bflb_pwm_v2_int_clear	(	struct bflb_device_s *	dev,
		uint32_t	int_clear
	)

Clear pwm interrupt status.

Parameters

[in]	dev	device handle
[in]	int_clear	clear value, use pwm interrupt clear definition

bflb_pwm_v2_int_enable()

void bflb_pwm_v2_int_enable	(	struct bflb_device_s *	dev,
		uint32_t	int_en,
		bool	enable
	)

Enable pwm interrupt.

Parameters

[in]	dev	device handle
[in]	int_en	interrupt type
[in]	enable	true means enable, otherwise disable

bflb_pwm_v2_set_period()

void bflb_pwm_v2_set_period	(	struct bflb_device_s *	dev,
		uint16_t	period
	)

Set pwm period to change pwm frequence. Frequcence(hz) = pwm source clock /div/period.

Parameters

[in]	dev	device handle
[in]	period	pwm period

bflb_pwm_v2_start()

void bflb_pwm_v2_start

(

struct bflb_device_s *

dev

)

Start pwm output.

Parameters

[in]

dev

device handle

bflb_pwm_v2_stop()

void bflb_pwm_v2_stop

(

struct bflb_device_s *

dev

)

Stop pwm output.

Parameters

[in]

dev

device handle