Public function

Functions
void	dotmatrixr_cfg_setup (dotmatrixr_cfg_t *cfg)
	Config Object Initialization function.
DOTMATRIXR_RETVAL	dotmatrixr_init (dotmatrixr_t *ctx, dotmatrixr_cfg_t *cfg)
	Initialization function.
void	dotmatrixr_generic_transfer (dotmatrixr_t *ctx, uint8_t *wr_buf, uint16_t wr_len, uint8_t *rd_buf, uint16_t rd_len)
	Generic transfer function.
void	dotmatrixr_set_bl_pin_state (dotmatrixr_t *ctx, uint8_t state)
	Sets BL pin to high or low state.
void	dotmatrixr_set_rs_pin_state (dotmatrixr_t *ctx, uint8_t state)
	Sets RS pin to high or low state.
void	dotmatrixr_set_rst_pin_state (dotmatrixr_t *ctx, uint8_t state)
	Sets RST pin to high or low state.
void	dotmatrixr_restart (dotmatrixr_t *ctx)
	Restart device.
void	dotmatrixr_ctrl_0 (dotmatrixr_t *ctx, uint8_t ctrl_byte)
	Function for writing control word 0.
void	dotmatrixr_ctrl_1 (dotmatrixr_t *ctx, uint8_t ctrl_byte)
	Function for writing control word 1.
void	dotmatrixr_write_ascii (dotmatrixr_t *ctx, char *ascii_data)
	Sets display to written value.

Detailed Description

Function Documentation

dotmatrixr_cfg_setup()

void dotmatrixr_cfg_setup

(

dotmatrixr_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.

dotmatrixr_ctrl_0()

void dotmatrixr_ctrl_0	(	dotmatrixr_t *	ctx,
		uint8_t	ctrl_byte )

Function for writing control word 0.

Parameters

ctx	Click object.
ctrl_byte	Control byte

dotmatrixr_ctrl_1()

void dotmatrixr_ctrl_1	(	dotmatrixr_t *	ctx,
		uint8_t	ctrl_byte )

Function for writing control word 1.

Parameters

ctx	Click object.
ctrl_byte	Control byte

dotmatrixr_generic_transfer()

void dotmatrixr_generic_transfer	(	dotmatrixr_t *	ctx,
		uint8_t *	wr_buf,
		uint16_t	wr_len,
		uint8_t *	rd_buf,
		uint16_t	rd_len )

Generic transfer function.

Parameters

ctx	Click object.
wr_buf	Write data buffer
wr_len	Number of byte in write data buffer
rd_buf	Read data buffer
rd_len	Number of byte in read data buffer

@description Generic SPI transfer, for sending and receiving packages

dotmatrixr_init()

DOTMATRIXR_RETVAL dotmatrixr_init	(	dotmatrixr_t *	ctx,
		dotmatrixr_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.

dotmatrixr_restart()

void dotmatrixr_restart

(

dotmatrixr_t *

ctx

)

Restart device.

Parameters

ctx	Click object.

dotmatrixr_set_bl_pin_state()

void dotmatrixr_set_bl_pin_state	(	dotmatrixr_t *	ctx,
		uint8_t	state )

Sets BL pin to high or low state.

Parameters

ctx	Click object.
state	Pin state

dotmatrixr_set_rs_pin_state()

void dotmatrixr_set_rs_pin_state	(	dotmatrixr_t *	ctx,
		uint8_t	state )

Sets RS pin to high or low state.

Parameters

ctx	Click object.
state	Pin state

dotmatrixr_set_rst_pin_state()

void dotmatrixr_set_rst_pin_state	(	dotmatrixr_t *	ctx,
		uint8_t	state )

Sets RST pin to high or low state.

Parameters

ctx	Click object.
state	Pin state

dotmatrixr_write_ascii()

void dotmatrixr_write_ascii	(	dotmatrixr_t *	ctx,
		char *	ascii_data )

Sets display to written value.

Parameters

ctx	Click object.
ascii_data	String to be displayed