sx127x_internal.h File Reference

Semtech SX127X internal functions. More...

Detailed Description

Semtech SX127X internal functions.

Author

Eugene P. ep@un.nosp@m.wds..nosp@m.com

José Ignacio Alamos jose..nosp@m.alam.nosp@m.os@in.nosp@m.ria..nosp@m.cl

Alexandre Abadie alexa.nosp@m.ndre.nosp@m..abad.nosp@m.ie@i.nosp@m.nria..nosp@m.fr

Definition in file sx127x_internal.h.

#include <inttypes.h>
#include "sx127x.h"

Include dependency graph for sx127x_internal.h:

Go to the source code of this file.

Functions
int	sx127x_check_version (const sx127x_t *dev)
	Check the transceiver version. More...
void	sx127x_reg_write (const sx127x_t *dev, uint8_t addr, uint8_t data)
	Writes the radio register at specified address. More...
uint8_t	sx127x_reg_read (const sx127x_t *dev, uint8_t addr)
	Reads the radio register at specified address. More...
void	sx127x_reg_write_burst (const sx127x_t *dev, uint8_t addr, uint8_t *buffer, uint8_t size)
	Writes multiple radio registers starting at address (burst-mode). More...
void	sx127x_reg_read_burst (const sx127x_t *dev, uint8_t addr, uint8_t *buffer, uint8_t size)
	Reads multiple radio registers starting at address. More...
void	sx127x_write_fifo (const sx127x_t *dev, uint8_t *buffer, uint8_t size)
	Writes the buffer contents to the SX1276 FIFO. More...
void	sx127x_read_fifo (const sx127x_t *dev, uint8_t *buffer, uint8_t size)
	Reads the contents of the SX1276 FIFO. More...
int16_t	sx127x_read_rssi (const sx127x_t *dev)
	Reads the current RSSI value. More...

Constant values used to compute RSSI
#define	SX127X_RSSI_OFFSET_LF   (-164)
#define	SX127X_RSSI_OFFSET_HF   (-157)

Device specific logic level to indicate POR-cycle is active
#define	SX127X_POR_ACTIVE_LOGIC_LEVEL   (0)

Function Documentation

sx127x_check_version()

int sx127x_check_version

(

const sx127x_t *

dev

)

Check the transceiver version.

Parameters

[in]

dev

The sx127x device descriptor

Returns

0 when a valid device version is found

-1 when no valid device version is found

sx127x_read_fifo()

void sx127x_read_fifo	(	const sx127x_t *	dev,
		uint8_t *	buffer,
		uint8_t	size
	)

Reads the contents of the SX1276 FIFO.

Parameters

[in]	dev	The sx127x device structure pointer
[in]	size	Size Number of bytes to be read from the FIFO
[out]	buffer	Buffer Buffer where to copy the FIFO read data.

sx127x_read_rssi()

int16_t sx127x_read_rssi

(

const sx127x_t *

dev

)

Reads the current RSSI value.

Parameters

[in]

dev

The sx127x device descriptor

Returns

current value of RSSI in [dBm]

sx127x_reg_read()

uint8_t sx127x_reg_read	(	const sx127x_t *	dev,
		uint8_t	addr
	)

Reads the radio register at specified address.

Parameters

[in]	dev	The sx127x device structure pointer
[in]	addr	Register address

Returns

Register value

sx127x_reg_read_burst()

void sx127x_reg_read_burst	(	const sx127x_t *	dev,
		uint8_t	addr,
		uint8_t *	buffer,
		uint8_t	size
	)

Reads multiple radio registers starting at address.

Parameters

[in]	dev	The sx127x device structure pointer
[in]	addr	First radio register address
[in]	size	Number of registers to be read
[out]	buffer	Buffer where to copy registers data

sx127x_reg_write()

void sx127x_reg_write	(	const sx127x_t *	dev,
		uint8_t	addr,
		uint8_t	data
	)

Writes the radio register at specified address.

Parameters

[in]	dev	The sx127x device structure pointer
[in]	addr	Register address
[in]	data	New register value

sx127x_reg_write_burst()

void sx127x_reg_write_burst	(	const sx127x_t *	dev,
		uint8_t	addr,
		uint8_t *	buffer,
		uint8_t	size
	)

Writes multiple radio registers starting at address (burst-mode).

Parameters

[in]	dev	The sx127x device structure pointer
[in]	addr	First radio register address
[in]	buffer	Buffer containing the new register's values
[in]	size	Number of registers to be written

sx127x_write_fifo()

void sx127x_write_fifo	(	const sx127x_t *	dev,
		uint8_t *	buffer,
		uint8_t	size
	)

Writes the buffer contents to the SX1276 FIFO.

Parameters

[in]	dev	The sx127x device structure pointer
[in]	buffer	Buffer Buffer containing data to be put on the FIFO.
[in]	size	Size Number of bytes to be written to the FIFO