Public function

Functions
void	mp3_cfg_setup (mp3_cfg_t *cfg)
	Config Object Initialization function.
err_t	mp3_init (mp3_t *ctx, mp3_cfg_t *cfg)
	Initialization function.
void	mp3_reset (mp3_t *ctx)
	Functions for reset MP3 module.
uint8_t	mp3_is_busy (mp3_t *ctx)
	Function that checks whether busy mp3.
void	mp3_cmd_write (mp3_t *ctx, uint8_t address, uint16_t input)
	Function writes one byte (command) to MP3.
uint16_t	mp3_cmd_read (mp3_t *ctx, uint8_t address)
	Function reads command from MP3.
err_t	mp3_data_write (mp3_t *ctx, uint8_t input)
	Function writes one byte ( data ) to MP3.
err_t	mp3_data_write_32 (mp3_t *ctx, uint8_t *input32)
	Function Write 32 bytes ( data ) to MP3.
void	mp3_set_volume (mp3_t *ctx, uint8_t vol_left, uint8_t vol_right)
	Function set volume to MP3 click for left and right channels.

Detailed Description

Function Documentation

mp3_cfg_setup()

void mp3_cfg_setup

(

mp3_cfg_t *

cfg

)

Config Object Initialization function.

Parameters

cfg	Click configuration structure.

This function initializes click configuration structure to init state.

Note

All used pins will be set to unconnected state.

mp3_cmd_read()

uint16_t mp3_cmd_read	(	mp3_t *	ctx,
		uint8_t	address )

Function reads command from MP3.

Parameters

ctx	Click object.

Returns

command that is read

mp3_cmd_write()

void mp3_cmd_write	(	mp3_t *	ctx,
		uint8_t	address,
		uint16_t	input )

Function writes one byte (command) to MP3.

Parameters

ctx	Click object.
address	adddress of register whitch be written
input	command which be written

mp3_data_write()

err_t mp3_data_write	(	mp3_t *	ctx,
		uint8_t	input )

Function writes one byte ( data ) to MP3.

Parameters

ctx	Click object.
input	data which be written

mp3_data_write_32()

err_t mp3_data_write_32	(	mp3_t *	ctx,
		uint8_t *	input32 )

Function Write 32 bytes ( data ) to MP3.

Parameters

ctx	Click object.
input32	buffer of 32 bytes which be written

mp3_init()

err_t mp3_init	(	mp3_t *	ctx,
		mp3_cfg_t *	cfg )

Initialization function.

Parameters

mp3	Click object.
cfg	Click configuration structure.

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

mp3_is_busy()

uint8_t mp3_is_busy

(

mp3_t *

ctx

)

Function that checks whether busy mp3.

Parameters

ctx	Click object.

Returns

1 - is Busy / 0 - is not busy

mp3_reset()

void mp3_reset

(

mp3_t *

ctx

)

Functions for reset MP3 module.

mp3_set_volume()

void mp3_set_volume	(	mp3_t *	ctx,
		uint8_t	vol_left,
		uint8_t	vol_right )

Function set volume to MP3 click for left and right channels.

Parameters

ctx	Click object.
vol_left	Volume level for left channel.
vol_right	Volume level for right channel.

Note

Maximum volume is 0x00 and total silence is 0xFE.