RS485 3V3 Click Driver

API for configuring and manipulating RS485 3V3 Click driver. More...

Topics
	RS485 3V3 Device Settings
	Settings for registers of RS485 3V3 Click driver.
	RS485 3V3 MikroBUS Map
	MikroBUS pin mapping of RS485 3V3 Click driver.

Functions
void	rs4853v3_cfg_setup (rs4853v3_cfg_t *cfg)
	RS485 3V3 configuration object setup function.
err_t	rs4853v3_init (rs4853v3_t *ctx, rs4853v3_cfg_t *cfg)
	RS485 3V3 initialization function.
void	rs4853v3_generic_write (rs4853v3_t *ctx, char *data_buf, uint16_t len)
	RS485 3V3 data writing function.
err_t	rs4853v3_generic_read (rs4853v3_t *ctx, char *data_buf, uint16_t max_len)
	RS485 3V3 data reading function.
void	rs4853v3_send_command (rs4853v3_t *ctx, char *command)
	Send command.

Detailed Description

API for configuring and manipulating RS485 3V3 Click driver.

Any initialization code needed for MCU to function properly. Do not remove this line or clock might not be set correctly.

Function Documentation

rs4853v3_cfg_setup()

void rs4853v3_cfg_setup

(

rs4853v3_cfg_t *

cfg

)

RS485 3V3 configuration object setup function.

This function initializes click configuration structure to initial values.

Parameters

[out]

cfg

: Click configuration structure. See rs4853v3_cfg_t object definition for detailed explanation.

Returns

Nothing.

Note

The all used pins will be set to unconnected state.

rs4853v3_generic_read()

err_t rs4853v3_generic_read	(	rs4853v3_t *	ctx,
		char *	data_buf,
		uint16_t	max_len )

RS485 3V3 data reading function.

This function reads a desired number of data bytes by using UART serial interface.

Parameters

[in]	ctx	: Click context object. See rs4853v3_t object definition for detailed explanation.
[out]	data_buf	: Output read data.
[in]	max_len	: Number of bytes to be read.

Returns

• >0 - Number of data bytes read,
• <=0 - Error/Empty Ring buffer.

See #err_t definition for detailed explanation.

Note

None.

rs4853v3_generic_write()

void rs4853v3_generic_write	(	rs4853v3_t *	ctx,
		char *	data_buf,
		uint16_t	len )

RS485 3V3 data writing function.

This function writes a desired number of data bytes by using UART serial interface.

Parameters

[in]	ctx	: Click context object. See rs4853v3_t object definition for detailed explanation.
[in]	data_buf	: Data buffer for sending.
[in]	len	: Number of bytes for sending.

Returns

Nothing.

Note

None.

rs4853v3_init()

err_t rs4853v3_init	(	rs4853v3_t *	ctx,
		rs4853v3_cfg_t *	cfg )

RS485 3V3 initialization function.

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

Parameters

[out]	ctx	: Click context object. See rs4853v3_t object definition for detailed explanation.
[in]	cfg	: Click configuration structure. See rs4853v3_cfg_t object definition for detailed explanation.

Returns

• 0 - Success,
• -1 - Error.

See #err_t definition for detailed explanation.

Note

None.

rs4853v3_send_command()

void rs4853v3_send_command	(	rs4853v3_t *	ctx,
		char *	command )

Send command.

This function sends a command by using UART serial interface.

Parameters

ctx	Click object.
command	Command to be sent.