Public function

Functions
void	rs4854_cfg_setup (rs4854_cfg_t *cfg)
	Config Object Initialization function.
RS4854_RETVAL	rs4854_init (rs4854_t *ctx, rs4854_cfg_t *cfg)
	Initialization function.
void	rs4854_generic_write (rs4854_t *ctx, char *data_buf, uint16_t len)
	Generic write function.
int32_t	rs4854_generic_read (rs4854_t *ctx, char *data_buf, uint16_t max_len)
	Generic read function.
void	rs4854_rx_disable (rs4854_t *ctx)
	Rx disable function.
void	rs4854_rx_enable (rs4854_t *ctx)
	Rx enable function.
void	rs4854_tx_disable (rs4854_t *ctx)
	Tx disable function.
void	rs4854_tx_enable (rs4854_t *ctx)
	Tx enable function.
void	rs4854_re_pin_set (rs4854_t *ctx, uint8_t pin_state)
	Sets RE pin to high or low state.
void	rs4854_de_pin_set (rs4854_t *ctx, uint8_t pin_state)
	Sets DE pin to high or low state.

Detailed Description

Function Documentation

rs4854_cfg_setup()

void rs4854_cfg_setup

(

rs4854_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.

rs4854_de_pin_set()

void rs4854_de_pin_set	(	rs4854_t *	ctx,
		uint8_t	pin_state )

Sets DE pin to high or low state.

Parameters

pin_state

pin state

@description This function sets state of the de pin.

rs4854_generic_read()

int32_t rs4854_generic_read	(	rs4854_t *	ctx,
		char *	data_buf,
		uint16_t	max_len )

Generic read function.

Parameters

rs4854	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.

rs4854_generic_write()

void rs4854_generic_write	(	rs4854_t *	ctx,
		char *	data_buf,
		uint16_t	len )

Generic write function.

Parameters

rs4854	Click object.
data_buf	Data buffer for sends.
len	Number of bytes for sends.

rs4854_init()

RS4854_RETVAL rs4854_init	(	rs4854_t *	ctx,
		rs4854_cfg_t *	cfg )

Initialization function.

Parameters

rs4854	Click object.
cfg	Click configuration structure.

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

rs4854_re_pin_set()

void rs4854_re_pin_set	(	rs4854_t *	ctx,
		uint8_t	pin_state )

Sets RE pin to high or low state.

Parameters

pin_state

pin state

@description This function sets state of the re pin.

rs4854_rx_disable()

void rs4854_rx_disable

(

rs4854_t *

ctx

)

Rx disable function.

Parameters

ctx	Click object.

@description This function disable rx.

rs4854_rx_enable()

void rs4854_rx_enable

(

rs4854_t *

ctx

)

Rx enable function.

Parameters

ctx	Click object.

@description This function enable rx.

rs4854_tx_disable()

void rs4854_tx_disable

(

rs4854_t *

ctx

)

Tx disable function.

Parameters

ctx	Click object.

@description This function disable tx.

rs4854_tx_enable()

void rs4854_tx_enable

(

rs4854_t *

ctx

)

Tx enable function.

Parameters

ctx	Click object.

@description This function enable tx.