Public function

Functions
void	c2x20wamp_cfg_setup (c2x20wamp_cfg_t *cfg)
	Config Object Initialization function.
C2X20WAMP_RETVAL	c2x20wamp_init (c2x20wamp_t *ctx, c2x20wamp_cfg_t *cfg)
	Initialization function.
void	c2x20wamp_generic_write (c2x20wamp_t *ctx, uint8_t data_buf)
	Generic write function.
void	c2x20wamp_mode_play (c2x20wamp_t *ctx)
	Set Play mode of the amplifier function.
void	c2x20wamp_mode_mute (c2x20wamp_t *ctx)
	Set Mute mode of the amplifier function.
void	c2x20wamp_disable (c2x20wamp_t *ctx)
	Disable the amplifier function.
void	c2x20wamp_enable (c2x20wamp_t *ctx)
	Enable the amplifier function.
void	c2x20wamp_set_volume (c2x20wamp_t *ctx, uint8_t volume)
	Set volume of the amplifier function.
void	c2x20wamp_volume_up (c2x20wamp_t *ctx)
	Increase the volume by one level function.
void	c2x20wamp_volume_down (c2x20wamp_t *ctx)
	Decrease the volume by one level function.
void	c2x20wamp_filterless_modulation (c2x20wamp_t *ctx)
	Set filterless output modulation function.
void	c2x20wamp_classic_pwm_modulation (c2x20wamp_t *ctx)
	Set classic PWM output modulation function.

Detailed Description

Function Documentation

c2x20wamp_cfg_setup()

void c2x20wamp_cfg_setup

(

c2x20wamp_cfg_t *

cfg

)

Config Object Initialization function.

Parameters

cfg	Click configuration structure.

@description This function initializes click configuration structure to init state.

Note

All used pins will be set to unconnected state.

c2x20wamp_classic_pwm_modulation()

void c2x20wamp_classic_pwm_modulation

(

c2x20wamp_t *

ctx

)

Set classic PWM output modulation function.

Parameters

ctx	Click object.

Function set classic PWM output modulation by write classic PWM command ( 0x41 ) to the MAX9744ETH+T chip on 2x20W Amp Click.

c2x20wamp_disable()

void c2x20wamp_disable

(

c2x20wamp_t *

ctx

)

Disable the amplifier function.

Parameters

ctx	Click object.

Function disable the amplifier by clear SHDN pin of 2x20W Amp Click.

c2x20wamp_enable()

void c2x20wamp_enable

(

c2x20wamp_t *

ctx

)

Enable the amplifier function.

Parameters

ctx	Click object.

Function enable the amplifier by set SHDN pin of 2x20W Amp Click.

c2x20wamp_filterless_modulation()

void c2x20wamp_filterless_modulation

(

c2x20wamp_t *

ctx

)

Set filterless output modulation function.

Parameters

ctx	Click object.

Function set filterless output modulation by write filterless command ( 0x40 ) to the MAX9744ETH+T chip on 2x20W Amp Click.

c2x20wamp_generic_write()

void c2x20wamp_generic_write	(	c2x20wamp_t *	ctx,
		uint8_t	data_buf )

Generic write function.

Parameters

ctx	Click object.
data_buf	Data buf to be written.

@description This function writes data to the desired register.

c2x20wamp_init()

C2X20WAMP_RETVAL c2x20wamp_init	(	c2x20wamp_t *	ctx,
		c2x20wamp_cfg_t *	cfg )

Initialization function.

Parameters

c2x20wamp	Click object.
cfg	Click configuration structure.

@description This function initializes all necessary pins and peripherals used for this click.

c2x20wamp_mode_mute()

void c2x20wamp_mode_mute

(

c2x20wamp_t *

ctx

)

Set Mute mode of the amplifier function.

Parameters

ctx	Click object.

Function set Mute operating mode of the amplifier by set MUTE pin of 2x20W Amp Click.

c2x20wamp_mode_play()

void c2x20wamp_mode_play

(

c2x20wamp_t *

ctx

)

Set Play mode of the amplifier function.

Parameters

ctx	Click object.

Function set Play operating mode of the amplifier by clear MUTE pin of 2x20W Amp Click.

c2x20wamp_set_volume()

void c2x20wamp_set_volume	(	c2x20wamp_t *	ctx,
		uint8_t	volume )

Set volume of the amplifier function.

Parameters

	ctx	Click object.
[in]	volume	minimum volume : 0 maximum volume : 63

Function set volume of the amplifier by write volume value to the MAX9744ETH+T chip on 2x20W Amp Click.

c2x20wamp_volume_down()

void c2x20wamp_volume_down

(

c2x20wamp_t *

ctx

)

Decrease the volume by one level function.

Parameters

ctx	Click object.

Function decrease the volume by one level by write decreases command( 0xC5 ) to the MAX9744ETH+T chip on 2x20W Amp Click.

c2x20wamp_volume_up()

void c2x20wamp_volume_up

(

c2x20wamp_t *

ctx

)

Increase the volume by one level function.

Function increase the volume by one level by write increases command ( 0xC4 ) to the MAX9744ETH+T chip on 2x20W Amp Click.