Public function

Functions
void	expand4_cfg_setup (expand4_cfg_t *cfg)
	Config Object Initialization function.
EXPAND4_RETVAL	expand4_init (expand4_t *ctx, expand4_cfg_t *cfg)
	Initialization function.
void	expand4_enable_output (expand4_t *ctx)
	Enable output function.
void	expand4_disable_output (expand4_t *ctx)
	Disable output function.
void	expand4_reset (expand4_t *ctx)
	Clear register function.
void	expand4_write_data (expand4_t *ctx, uint8_t write_command)
void	expand4_turn_on_by_position (expand4_t *ctx, uint8_t position)

Detailed Description

Function Documentation

expand4_cfg_setup()

void expand4_cfg_setup

(

expand4_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.

expand4_disable_output()

void expand4_disable_output

(

expand4_t *

ctx

)

Disable output function.

Parameters

ctx	Click object.

@description Function turn off output buffers set PWM pin high

expand4_enable_output()

void expand4_enable_output

(

expand4_t *

ctx

)

Enable output function.

Parameters

ctx	Click object.

@description Function turn on output buffers - set PWM pin low

expand4_init()

EXPAND4_RETVAL expand4_init	(	expand4_t *	ctx,
		expand4_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.

expand4_reset()

void expand4_reset

(

expand4_t *

ctx

)

Clear register function.

Parameters

ctx	Click object.

@description Function clear input TPIC6A595 shift register.

expand4_turn_on_by_position()

void expand4_turn_on_by_position	(	expand4_t *	ctx,
		uint8_t	position )

@breif Turn on output pin masks by position function

Parameters

ctx	Click object.
position	position from 0 to 7

@description Function turning on output pin masks by position:

• 0 for D0
• 1 for D1
• 2 for D2
• 3 for D3
• 4 for D4
• 5 for D5
• 6 for D6
• 7 for D7

expand4_write_data()

void expand4_write_data	(	expand4_t *	ctx,
		uint8_t	write_command )

@breif Generic write data function

Parameters

ctx	Click object.
write_command	8-bit data to write

@description Function write 8-bit data function to TPIC6A595 shift register.