Public function

Functions
void	mp32_cfg_setup (mp32_cfg_t *cfg)
	Config Object Initialization function.
MP32_RETVAL	mp32_init (mp32_t *ctx, mp32_cfg_t *cfg)
	Initialization function.
void	mp32_generic_write (mp32_t *ctx, char *data_buf, uint16_t len)
	Generic write function.
int32_t	mp32_generic_read (mp32_t *ctx, char *data_buf, uint16_t max_len)
	Generic read function.
void	mp32_hw_reset (mp32_t *ctx)
	Reset the device function.
void	mp32_rx_cmd (mp32_t *ctx, uint8_t *rd_data, uint8_t len)
	Received response data function.
void	mp32_tx_cmd (mp32_t *ctx, uint8_t cmd, uint16_t spec_data)
	Write command function.
void	mp32_sw_reset (mp32_t *ctx)
	Software reset function.
void	mp32_play_specific (mp32_t *ctx, uint16_t track_index)
	Play specific function.
void	mp32_play_mode (mp32_t *ctx)
	Play mode function.
void	mp32_pause_mode (mp32_t *ctx)
	Pause mode function.
void	mp32_stop_mode (mp32_t *ctx)
	Stop mode function.
void	mp32_set_volume (mp32_t *ctx, uint8_t perc)
	Set Volume function.
void	mp32_volume_up (mp32_t *ctx)
	Volume up function.
void	mp32_volume_down (mp32_t *ctx)
	Play next command function.
void	mp32_play_next (mp32_t *ctx)
	Play previous command function.
void	mp32_play_previous (mp32_t *ctx)
	Play previous command function.
void	mp32_set_eq (mp32_t *ctx, uint8_t eq)
	Set equalizer mode function.
void	mp32_repeat_current (mp32_t *ctx)
	Repeat current mode function.
void	mp32_set_device (mp32_t *ctx, uint8_t device)
	Set device function.
void	mp32_set_low_power_mode (mp32_t *ctx)
	Set Low power mode function.
void	mp32_play_spec_in_fol (mp32_t *ctx, uint8_t fol_inx, uint8_t track_inx)
	Specify a certain folder and play tracks inside function.
void	mp32_loop_all (mp32_t *ctx, uint8_t loop_mode)
	Play specific in loop mode function.
void	mp32_play_fol (mp32_t *ctx, uint8_t fol_inx)
	Play folder function.
void	mp32_loop_fol (mp32_t *ctx, uint8_t fol_inx)
	Loop folder function.
void	mp32_random_all (mp32_t *ctx)
	Random Play function.
void	mp32_loop (mp32_t *ctx, uint8_t state)
	Repeat a current song function.

Detailed Description

Function Documentation

mp32_cfg_setup()

void mp32_cfg_setup

(

mp32_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.

mp32_generic_read()

int32_t mp32_generic_read	(	mp32_t *	ctx,
		char *	data_buf,
		uint16_t	max_len )

Generic read function.

Parameters

ctx	Click object.
data_buf	Data buffer for read data.
max_len	The maximum length of data that can be read.

Returns

Number of reads data.

mp32_generic_write()

void mp32_generic_write	(	mp32_t *	ctx,
		char *	data_buf,
		uint16_t	len )

Generic write function.

Parameters

ctx	Click object.
data_buf	Data buffer for sends.
len	Number of bytes for sends.

mp32_hw_reset()

void mp32_hw_reset

(

mp32_t *

ctx

)

Reset the device function.

Parameters

ctx	Click object.

@description Function reset the device by set state high of the RST pin.

mp32_init()

MP32_RETVAL mp32_init	(	mp32_t *	ctx,
		mp32_cfg_t *	cfg )

Initialization function.

Parameters

ctx	Click object.
cfg	Click configuration structure.

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

mp32_loop()

void mp32_loop	(	mp32_t *	ctx,
		uint8_t	state )

Repeat a current song function.

Parameters

ctx	Click object.
loop_mode	Loop mode: 0 : Start repeating a current song. 1 : Stop repeating a current song.

@description The function set repeat a current song device mode.

mp32_loop_all()

void mp32_loop_all	(	mp32_t *	ctx,
		uint8_t	loop_mode )

Play specific in loop mode function.

Parameters

ctx	Click object.
loop_mode	Loop mode: 0 : Looping stop. 1 : Looping start.

@description The function play specific in loop mode.

mp32_loop_fol()

void mp32_loop_fol	(	mp32_t *	ctx,
		uint8_t	fol_inx )

Loop folder function.

Parameters

ctx	Click object.
fol_inx	Certain folder index.

@description The function specify a folder for looping tracks inside.

mp32_pause_mode()

void mp32_pause_mode

(

mp32_t *

ctx

)

Pause mode function.

Parameters

ctx	Click object.

@description The function set Pause mode command.

mp32_play_fol()

void mp32_play_fol	(	mp32_t *	ctx,
		uint8_t	fol_inx )

Play folder function.

Parameters

ctx	Click object.
fol_inx	Certain folder index.

@description The function specify a folder named MP3 and paly tracks inside.

mp32_play_mode()

void mp32_play_mode

(

mp32_t *

ctx

)

Play mode function.

Parameters

ctx	Click object.

@description The function set Play mode command.

mp32_play_next()

void mp32_play_next

(

mp32_t *

ctx

)

Play previous command function.

Parameters

ctx	Click object.

@description The function command for Play previous song.

mp32_play_previous()

void mp32_play_previous

(

mp32_t *

ctx

)

Play previous command function.

Parameters

ctx	Click object.

@description The function command for Play previous song.

mp32_play_spec_in_fol()

void mp32_play_spec_in_fol	(	mp32_t *	ctx,
		uint8_t	fol_inx,
		uint8_t	track_inx )

Specify a certain folder and play tracks inside function.

Parameters

ctx	Click object.
fol_inx	Certain folder index.
track_inx	Track index.

@description The function specify a certain folder and play tracks inside.

mp32_play_specific()

void mp32_play_specific	(	mp32_t *	ctx,
		uint16_t	track_index )

Play specific function.

Parameters

ctx	Click object.
track_index	Track index.

@description The function set instructions for specifying a track to play.

mp32_random_all()

void mp32_random_all

(

mp32_t *

ctx

)

Random Play function.

Parameters

ctx	Click object.

@description The function set random play command.

mp32_repeat_current()

void mp32_repeat_current

(

mp32_t *

ctx

)

Repeat current mode function.

Parameters

ctx	Click object.

@description The function set command for Repeat current song.

mp32_rx_cmd()

void mp32_rx_cmd	(	mp32_t *	ctx,
		uint8_t *	rd_data,
		uint8_t	len )

Received response data function.

Parameters

ctx	Click object.
rd_data	Response.
len	Response length.

@description The function received response from the device.

mp32_set_device()

void mp32_set_device	(	mp32_t *	ctx,
		uint8_t	device )

Set device function.

Parameters

ctx	Click object.

@description The function set specify a device play tracks inside.

mp32_set_eq()

void mp32_set_eq	(	mp32_t *	ctx,
		uint8_t	eq )

Set equalizer mode function.

Parameters

ctx	Click object.
eq	Equalizer mode ( from 0 to 4 ).

@description The function set equalizer mode of the device.

mp32_set_low_power_mode()

void mp32_set_low_power_mode

(

mp32_t *

ctx

)

Set Low power mode function.

Parameters

ctx	Click object.

@description The function set Low power mode of the device.

mp32_set_volume()

void mp32_set_volume	(	mp32_t *	ctx,
		uint8_t	perc )

Set Volume function.

Parameters

ctx	Click object.
perc	Volume percentage.

@description The function adjust the volume of the device.

mp32_stop_mode()

void mp32_stop_mode

(

mp32_t *

ctx

)

Stop mode function.

Parameters

ctx	Click object.

@description The function set Stop mode command.

mp32_sw_reset()

void mp32_sw_reset

(

mp32_t *

ctx

)

Software reset function.

Parameters

ctx	Click object.

@description Function set software reset of device.

mp32_tx_cmd()

void mp32_tx_cmd	(	mp32_t *	ctx,
		uint8_t	cmd,
		uint16_t	spec_data )

Write command function.

Parameters

ctx	Click object.
cmd	Command.
spec_data	16-bit specific data ( such as song name ).

@description The function write command specific data to the device.

mp32_volume_down()

void mp32_volume_down

(

mp32_t *

ctx

)

Play next command function.

Parameters

ctx	Click object.

@description The function command for Play next song.

mp32_volume_up()

void mp32_volume_up

(

mp32_t *

ctx

)

Volume up function.

Parameters

ctx	Click object.

@description The function increase the volume of the device.