#include <sx1276.h>

Inherits Radio.

Public Member Functions
virtual void	Init (RadioEvents_t *events)
	Initializes the radio.
virtual RadioState	GetStatus (void)
virtual void	SetModem (RadioModems_t modem)
	Configures the SX1276 with the given modem.
virtual void	SetChannel (uint32_t freq)
	Sets the channel frequency.
virtual bool	IsChannelFree (RadioModems_t modem, uint32_t freq, int16_t rssiThresh)
	Sets the channels configuration.
virtual uint32_t	Random (void)
	Generates a 32 bits random value based on the RSSI readings.
virtual void	SetRxConfig (RadioModems_t modem, uint32_t bandwidth, uint32_t datarate, uint8_t coderate, uint32_t bandwidthAfc, uint16_t preambleLen, uint16_t symbTimeout, bool fixLen, uint8_t payloadLen, bool crcOn, bool freqHopOn, uint8_t hopPeriod, bool iqInverted, bool rxContinuous)
	Sets the reception parameters.
virtual void	SetTxConfig (RadioModems_t modem, int8_t power, uint32_t fdev, uint32_t bandwidth, uint32_t datarate, uint8_t coderate, uint16_t preambleLen, bool fixLen, bool crcOn, bool freqHopOn, uint8_t hopPeriod, bool iqInverted, uint32_t timeout)
	Sets the transmission parameters.
virtual double	TimeOnAir (RadioModems_t modem, uint8_t pktLen)
	Computes the packet time on air for the given payload.
virtual void	Send (uint8_t *buffer, uint8_t size)
	Sends the buffer of size. Prepares the packet to be sent and sets the radio in transmission.
virtual void	Sleep (void)
	Sets the radio in sleep mode.
virtual void	Standby (void)
	Sets the radio in standby mode.
virtual void	Rx (uint32_t timeout)
	Sets the radio in reception mode for the given time.
virtual void	Tx (uint32_t timeout)
	Sets the radio in transmission mode for the given time.
virtual void	StartCad (void)
	Start a Channel Activity Detection.
virtual int16_t	GetRssi (RadioModems_t modem)
	Reads the current RSSI value.
virtual void	Write (uint8_t addr, uint8_t data)=0
	Writes the radio register at the specified address.
virtual uint8_t	Read (uint8_t addr)=0
	Reads the radio register at the specified address.
virtual void	Write (uint8_t addr, uint8_t *buffer, uint8_t size)=0
	Writes multiple radio registers starting at address.
virtual void	Read (uint8_t addr, uint8_t *buffer, uint8_t size)=0
	Reads multiple radio registers starting at address.
virtual void	WriteFifo (uint8_t *buffer, uint8_t size)=0
	Writes the buffer contents to the SX1276 FIFO.
virtual void	ReadFifo (uint8_t *buffer, uint8_t size)=0
	Reads the contents of the SX1276 FIFO.
virtual void	Reset (void)=0
	Resets the SX1276.
virtual void	SetMaxPayloadLength (RadioModems_t modem, uint8_t max)
	Sets the maximum payload length.
Protected Member Functions
void	RxChainCalibration (void)
virtual void	IoInit (void)=0
	Initializes the radio I/Os pins interface.
virtual void	RadioRegistersInit ()=0
	Initializes the radio registers.
virtual void	SpiInit (void)=0
	Initializes the radio SPI.
virtual void	IoIrqInit (DioIrqHandler *irqHandlers)=0
	Initializes DIO IRQ handlers.
virtual void	IoDeInit (void)=0
	De-initializes the radio I/Os pins interface.
virtual uint8_t	GetPaSelect (uint32_t channel)=0
	Gets the board PA selection configuration.
virtual void	SetAntSwLowPower (bool status)=0
	Set the RF Switch I/Os pins in Low Power mode.
virtual void	AntSwInit (void)=0
	Initializes the RF Switch I/Os pins interface.
virtual void	AntSwDeInit (void)=0
	De-initializes the RF Switch I/Os pins interface.
virtual void	SetAntSw (uint8_t rxTx)=0
	Controls the antena switch if necessary.
virtual bool	CheckRfFrequency (uint32_t frequency)=0
	Checks if the given RF frequency is supported by the hardware.
virtual void	SetOpMode (uint8_t opMode)
	Sets the SX1276 operating mode.
virtual void	OnDio0Irq (void)
	DIO 0 IRQ callback.
virtual void	OnDio1Irq (void)
	DIO 1 IRQ callback.
virtual void	OnDio2Irq (void)
	DIO 2 IRQ callback.
virtual void	OnDio3Irq (void)
	DIO 3 IRQ callback.
virtual void	OnDio4Irq (void)
	DIO 4 IRQ callback.
virtual void	OnDio5Irq (void)
	DIO 5 IRQ callback.
virtual void	OnTimeoutIrq (void)
	Tx & Rx timeout timer callback.
Static Protected Member Functions
static uint8_t	GetFskBandwidthRegValue (uint32_t bandwidth)
Protected Attributes
SPI	spi
DigitalInOut	reset
InterruptIn	dio0
DioIrqHandler *	dioIrq
Timeout	txTimeoutTimer
uint8_t	rxTx

Detailed Description

Actual implementation of a SX1276 radio, inherits Radio

Definition at line 58 of file sx1276.h.

Member Function Documentation

virtual void AntSwDeInit ( void ) [protected, pure virtual]

De-initializes the RF Switch I/Os pins interface.

Remarks:: Needed to decrease the power consumption in MCU lowpower modes

Implemented in SX1276MB1xAS.

virtual void AntSwInit ( void ) [protected, pure virtual]

Initializes the RF Switch I/Os pins interface.

Implemented in SX1276MB1xAS.

virtual bool CheckRfFrequency ( uint32_t frequency ) [protected, pure virtual]

Checks if the given RF frequency is supported by the hardware.

Parameters:

[IN]	frequency RF frequency to be checked

Return values:

isSupported [true: supported, false: unsupported]

Implements Radio.

Implemented in SX1276MB1xAS.

uint8_t GetFskBandwidthRegValue ( uint32_t bandwidth ) [static, protected]

Returns the known FSK bandwidth registers value

Parameters:

[IN]	bandwidth Bandwidth value in Hz

Return values:

regValue Bandwidth register value.

Definition at line 202 of file sx1276.cpp.

virtual uint8_t GetPaSelect ( uint32_t channel ) [protected, pure virtual]

Gets the board PA selection configuration.

Parameters:

[IN]	channel Channel frequency in Hz

Return values:

PaSelect RegPaConfig PaSelect value

Implemented in SX1276MB1xAS.

int16_t GetRssi ( RadioModems_t modem ) [virtual]

Reads the current RSSI value.

Return values:

rssiValue Current RSSI value in [dBm]

Implements Radio.

Definition at line 1009 of file sx1276.cpp.

RadioState GetStatus ( void ) [virtual]

Return current radio status

Parameters:

status Radio status. [RF_IDLE, RX_RUNNING, TX_RUNNING]

Implements Radio.

Definition at line 84 of file sx1276.cpp.

void Init ( RadioEvents_t * events ) [virtual]

Initializes the radio.

Parameters:

[IN]	events Structure containing the driver callback functions

Implements Radio.

Definition at line 79 of file sx1276.cpp.

virtual void IoDeInit ( void ) [protected, pure virtual]

De-initializes the radio I/Os pins interface.

Remarks:: Useful when going in MCU lowpower modes

Implemented in SX1276MB1xAS.

virtual void IoInit ( void ) [protected, pure virtual]

Initializes the radio I/Os pins interface.

Implemented in SX1276MB1xAS.

virtual void IoIrqInit ( DioIrqHandler * irqHandlers ) [protected, pure virtual]

Initializes DIO IRQ handlers.

Parameters:

[IN]	irqHandlers Array containing the IRQ callback functions

Implemented in SX1276MB1xAS.

bool IsChannelFree	(	RadioModems_t	modem,
		uint32_t	freq,
		int16_t	rssiThresh
	)		`[virtual]`

Sets the channels configuration.

Parameters:

[IN]	modem Radio modem to be used [0: FSK, 1: LoRa]
[IN]	freq Channel RF frequency
[IN]	rssiThresh RSSI threshold

Return values:

isFree [true: Channel is free, false: Channel is not free]

Implements Radio.

Definition at line 98 of file sx1276.cpp.

void OnDio0Irq ( void ) [protected, virtual]

DIO 0 IRQ callback.

Definition at line 1153 of file sx1276.cpp.

void OnDio1Irq ( void ) [protected, virtual]

DIO 1 IRQ callback.

Definition at line 1362 of file sx1276.cpp.

void OnDio2Irq ( void ) [protected, virtual]

DIO 2 IRQ callback.

Definition at line 1436 of file sx1276.cpp.

void OnDio3Irq ( void ) [protected, virtual]

DIO 3 IRQ callback.

Definition at line 1500 of file sx1276.cpp.

void OnDio4Irq ( void ) [protected, virtual]

DIO 4 IRQ callback.

Definition at line 1531 of file sx1276.cpp.

void OnDio5Irq ( void ) [protected, virtual]

DIO 5 IRQ callback.

Definition at line 1550 of file sx1276.cpp.

void OnTimeoutIrq ( void ) [protected, virtual]

Tx & Rx timeout timer callback.

Definition at line 1102 of file sx1276.cpp.

virtual void RadioRegistersInit ( ) [protected, pure virtual]

Initializes the radio registers.

Implemented in SX1276MB1xAS.

uint32_t Random ( void ) [virtual]

Generates a 32 bits random value based on the RSSI readings.

Remarks:: This function sets the radio in LoRa modem mode and disables all interrupts. After calling this function either Radio.SetRxConfig or Radio.SetTxConfig functions must be called.

Return values:

randomValue 32 bits random value

Implements Radio.

Definition at line 121 of file sx1276.cpp.

virtual uint8_t Read ( uint8_t addr ) [pure virtual]

Reads the radio register at the specified address.

Parameters:

[IN],: addr Register address

Return values:

data	Register value

Implements Radio.

Implemented in SX1276MB1xAS.

virtual void Read	(	uint8_t	addr,
		uint8_t *	buffer,
		uint8_t	size
	)		`[pure virtual]`

Reads multiple radio registers starting at address.

Parameters:

[IN]	addr First Radio register address
[OUT]	buffer Buffer where to copy the registers data
[IN]	size Number of registers to be read

Implements Radio.

Implemented in SX1276MB1xAS.

virtual void ReadFifo	(	uint8_t *	buffer,
		uint8_t	size
	)		`[pure virtual]`

Reads the contents of the SX1276 FIFO.

Parameters:

[OUT]	buffer Buffer where to copy the FIFO read data.
[IN]	size Number of bytes to be read from the FIFO

Implements Radio.

Implemented in SX1276MB1xAS.

virtual void Reset ( void ) [pure virtual]

Resets the SX1276.

Implemented in SX1276MB1xAS.

void Rx ( uint32_t timeout ) [virtual]

Sets the radio in reception mode for the given time.

Parameters:

[IN]	timeout Reception timeout [us] [0: continuous, others timeout]

Implements Radio.

Definition at line 746 of file sx1276.cpp.

void RxChainCalibration ( void ) [protected]

Performs the Rx chain calibration for LF and HF bands

Remarks:: Must be called just after the reset so all registers are at their default values

Definition at line 162 of file sx1276.cpp.

void Send	(	uint8_t *	buffer,
		uint8_t	size
	)		`[virtual]`

Sends the buffer of size. Prepares the packet to be sent and sets the radio in transmission.

Parameters:

[IN],:	buffer Buffer pointer
[IN],:	size Buffer size

Implements Radio.

Definition at line 654 of file sx1276.cpp.

virtual void SetAntSw ( uint8_t rxTx ) [protected, pure virtual]

Controls the antena switch if necessary.

Remarks:: see errata note

Parameters:

[IN]	rxTx [1: Tx, 0: Rx]

Implemented in SX1276MB1xAS.

virtual void SetAntSwLowPower ( bool status ) [protected, pure virtual]

Set the RF Switch I/Os pins in Low Power mode.

Parameters:

[IN]	status enable or disable

Implemented in SX1276MB1xAS.

void SetChannel ( uint32_t freq ) [virtual]

Sets the channel frequency.

Parameters:

[IN]	freq Channel RF frequency

Implements Radio.

Definition at line 89 of file sx1276.cpp.

void SetMaxPayloadLength	(	RadioModems_t	modem,
		uint8_t	max
	)		`[virtual]`

Sets the maximum payload length.

Parameters:

[IN]	modem Radio modem to be used [0: FSK, 1: LoRa]
[IN]	max Maximum payload length in bytes

Implements Radio.

Definition at line 1084 of file sx1276.cpp.

void SetModem ( RadioModems_t modem ) [virtual]

Configures the SX1276 with the given modem.

Parameters:

[IN]	modem Modem to be used [0: FSK, 1: LoRa]

Implements Radio.

Definition at line 1056 of file sx1276.cpp.

void SetOpMode ( uint8_t opMode ) [protected, virtual]

Sets the SX1276 operating mode.

Parameters:

[IN]	opMode New operating mode

Definition at line 1035 of file sx1276.cpp.

void SetRxConfig	(	RadioModems_t	modem,
		uint32_t	bandwidth,
		uint32_t	datarate,
		uint8_t	coderate,
		uint32_t	bandwidthAfc,
		uint16_t	preambleLen,
		uint16_t	symbTimeout,
		bool	fixLen,
		uint8_t	payloadLen,
		bool	crcOn,
		bool	freqHopOn,
		uint8_t	hopPeriod,
		bool	iqInverted,
		bool	rxContinuous
	)		`[virtual]`

Sets the reception parameters.

Parameters:

[IN]	modem Radio modem to be used [0: FSK, 1: LoRa]
[IN]	bandwidth Sets the bandwidth FSK : >= 2600 and <= 250000 Hz LoRa: [0: 125 kHz, 1: 250 kHz, 2: 500 kHz, 3: Reserved]
[IN]	datarate Sets the Datarate FSK : 600..300000 bits/s LoRa: [6: 64, 7: 128, 8: 256, 9: 512, 10: 1024, 11: 2048, 12: 4096 chips]
[IN]	coderate Sets the coding rate ( LoRa only ) FSK : N/A ( set to 0 ) LoRa: [1: 4/5, 2: 4/6, 3: 4/7, 4: 4/8]
[IN]	bandwidthAfc Sets the AFC Bandwidth ( FSK only ) FSK : >= 2600 and <= 250000 Hz LoRa: N/A ( set to 0 )
[IN]	preambleLen Sets the Preamble length ( LoRa only ) FSK : N/A ( set to 0 ) LoRa: Length in symbols ( the hardware adds 4 more symbols )
[IN]	symbTimeout Sets the RxSingle timeout value ( LoRa only ) FSK : N/A ( set to 0 ) LoRa: timeout in symbols
[IN]	fixLen Fixed length packets [0: variable, 1: fixed]
[IN]	payloadLen Sets payload length when fixed lenght is used
[IN]	crcOn Enables/Disables the CRC [0: OFF, 1: ON]
[IN]	freqHopOn Enables disables the intra-packet frequency hopping [0: OFF, 1: ON] (LoRa only)
[IN]	hopPeriod Number of symbols bewteen each hop (LoRa only)
[IN]	iqInverted Inverts IQ signals ( LoRa only ) FSK : N/A ( set to 0 ) LoRa: [0: not inverted, 1: inverted]
[IN]	rxContinuous Sets the reception in continuous mode [false: single mode, true: continuous mode]

Implements Radio.

Definition at line 217 of file sx1276.cpp.

void SetTxConfig	(	RadioModems_t	modem,
		int8_t	power,
		uint32_t	fdev,
		uint32_t	bandwidth,
		uint32_t	datarate,
		uint8_t	coderate,
		uint16_t	preambleLen,
		bool	fixLen,
		bool	crcOn,
		bool	freqHopOn,
		uint8_t	hopPeriod,
		bool	iqInverted,
		uint32_t	timeout
	)		`[virtual]`

Sets the transmission parameters.

Parameters:

[IN]	modem Radio modem to be used [0: FSK, 1: LoRa]
[IN]	power Sets the output power [dBm]
[IN]	fdev Sets the frequency deviation ( FSK only ) FSK : [Hz] LoRa: 0
[IN]	bandwidth Sets the bandwidth ( LoRa only ) FSK : 0 LoRa: [0: 125 kHz, 1: 250 kHz, 2: 500 kHz, 3: Reserved]
[IN]	datarate Sets the Datarate FSK : 600..300000 bits/s LoRa: [6: 64, 7: 128, 8: 256, 9: 512, 10: 1024, 11: 2048, 12: 4096 chips]
[IN]	coderate Sets the coding rate ( LoRa only ) FSK : N/A ( set to 0 ) LoRa: [1: 4/5, 2: 4/6, 3: 4/7, 4: 4/8]
[IN]	preambleLen Sets the preamble length
[IN]	fixLen Fixed length packets [0: variable, 1: fixed]
[IN]	crcOn Enables disables the CRC [0: OFF, 1: ON]
[IN]	freqHopOn Enables disables the intra-packet frequency hopping [0: OFF, 1: ON] (LoRa only)
[IN]	hopPeriod Number of symbols bewteen each hop (LoRa only)
[IN]	iqInverted Inverts IQ signals ( LoRa only ) FSK : N/A ( set to 0 ) LoRa: [0: not inverted, 1: inverted]
[IN]	timeout Transmission timeout [us]

Implements Radio.

Definition at line 385 of file sx1276.cpp.

void Sleep ( void ) [virtual]

Sets the radio in sleep mode.

Implements Radio.

Definition at line 728 of file sx1276.cpp.

virtual void SpiInit ( void ) [protected, pure virtual]

Initializes the radio SPI.

Implemented in SX1276MB1xAS.

void Standby ( void ) [virtual]

Sets the radio in standby mode.

Implements Radio.

Definition at line 737 of file sx1276.cpp.

void StartCad ( void ) [virtual]

Start a Channel Activity Detection.

Implements Radio.

Definition at line 976 of file sx1276.cpp.

double TimeOnAir	(	RadioModems_t	modem,
		uint8_t	pktLen
	)		`[virtual]`

Computes the packet time on air for the given payload.

Can only be called once SetRxConfig or SetTxConfig have been called

Parameters:

[IN]	modem Radio modem to be used [0: FSK, 1: LoRa]
[IN]	pktLen Packet payload length

Return values:

airTime Computed airTime for the given packet payload length

Implements Radio.

Definition at line 575 of file sx1276.cpp.

void Tx ( uint32_t timeout ) [virtual]

Sets the radio in transmission mode for the given time.

Parameters:

[IN]	timeout Transmission timeout [us] [0: continuous, others timeout]

Implements Radio.

Definition at line 914 of file sx1276.cpp.

virtual void Write	(	uint8_t	addr,
		uint8_t *	buffer,
		uint8_t	size
	)		`[pure virtual]`

Writes multiple radio registers starting at address.

Parameters:

[IN]	addr First Radio register address
[IN]	buffer Buffer containing the new register's values
[IN]	size Number of registers to be written

Implements Radio.

Implemented in SX1276MB1xAS.

virtual void Write	(	uint8_t	addr,
		uint8_t	data
	)		`[pure virtual]`

Writes the radio register at the specified address.

Parameters:

[IN],:	addr Register address
[IN],:	data New register value

Implements Radio.

Implemented in SX1276MB1xAS.

virtual void WriteFifo	(	uint8_t *	buffer,
		uint8_t	size
	)		`[pure virtual]`

Writes the buffer contents to the SX1276 FIFO.

Parameters:

[IN]	buffer Buffer containing data to be put on the FIFO.
[IN]	size Number of bytes to be written to the FIFO

Implements Radio.

Implemented in SX1276MB1xAS.

Field Documentation

InterruptIn dio0 [protected]

SX1276 DIO pins

Definition at line 75 of file sx1276.h.

DioIrqHandler* dioIrq [protected]

Hardware DIO IRQ functions

Definition at line 93 of file sx1276.h.

DigitalInOut reset [protected]

SX1276 Reset pin

Definition at line 70 of file sx1276.h.

uint8_t rxTx [protected]

rxTx: [1: Tx, 0: Rx]

Definition at line 105 of file sx1276.h.

SPI spi [protected]

SPI Interface

Definition at line 64 of file sx1276.h.

Timeout txTimeoutTimer [protected]

Tx and Rx timers

Definition at line 98 of file sx1276.h.

Type:	Library
Created:	06 Jun 2016
Imports:	1
Forks:	0
Commits:	27
Dependents:	0
Dependencies:	0
Followers:	1

SX1276 Class Reference

Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Detailed Description

Member Function Documentation

Field Documentation

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SX1276 Class Reference

Public Member Functions

Protected Member Functions

Static Protected Member Functions

Protected Attributes

Detailed Description

Member Function Documentation

Field Documentation

Repository toolbox

Repository details

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