#include <sx1272-hal.h>

Inherits SX1272.

Public Member Functions
virtual bool	CheckRfFrequency (uint32_t frequency)
	Detect the board connected by reading the value of the antenna switch pin.
virtual void	Write (uint8_t addr, uint8_t data)
	Writes the radio register at the specified address.
virtual uint8_t	Read (uint8_t addr)
	Reads the radio register at the specified address.
virtual void	Write (uint8_t addr, uint8_t *buffer, uint8_t size)
	Writes multiple radio registers starting at address.
virtual void	Read (uint8_t addr, uint8_t *buffer, uint8_t size)
	Reads multiple radio registers starting at address.
virtual void	WriteFifo (uint8_t *buffer, uint8_t size)
	Writes the buffer contents to the SX1276 FIFO.
virtual void	ReadFifo (uint8_t *buffer, uint8_t size)
	Reads the contents of the SX1276 FIFO.
virtual void	Reset (void)
	Reset the SX1276.
virtual RadioState	GetState (void)
virtual void	SetModem (ModemType modem)
	Configures the SX1276 with the given modem.
virtual void	SetChannel (uint32_t freq)
	Sets the channel frequency.
virtual bool	IsChannelFree (ModemType modem, uint32_t freq, int8_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 (ModemType 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 (ModemType 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 (ModemType 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 (ModemType modem)
	Reads the current RSSI value.
Protected Member Functions
virtual void	IoInit (void)
	Initializes the radio I/Os pins interface.
virtual void	RadioRegistersInit ()
	Initializes the radio registers.
virtual void	SpiInit (void)
	Initializes the radio SPI.
virtual void	IoIrqInit (DioIrqHandler *irqHandlers)
	Initializes DIO IRQ handlers.
virtual void	IoDeInit (void)
	De-initializes the radio I/Os pins interface.
virtual uint8_t	GetPaSelect (uint32_t channel)
	Gets the board PA selection configuration.
virtual void	SetAntSwLowPower (bool status)
	Set the RF Switch I/Os pins in Low Power mode.
virtual void	AntSwInit (void)
	Initializes the RF Switch I/Os pins interface.
virtual void	AntSwDeInit (void)
	De-initializes the RF Switch I/Os pins interface.
virtual void	SetAntSw (uint8_t rxTx)
	Controls the antena switch if necessary.
void	RxChainCalibration (void)
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
DigitalInOut	antSwitch
SPI	spi
DigitalInOut	reset
InterruptIn	dio0
DioIrqHandler *	dioIrq
Timeout	txTimeoutTimer
uint8_t	rxTx
void(*	txDone )()
	Tx Done callback prototype.
void(*	txTimeout )()
	Tx Timeout callback prototype.
void(*	rxDone )(uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr)
	Rx Done callback prototype.
void(*	rxTimeout )()
	Rx Timeout callback prototype.
void(*	rxError )()
	Rx Error callback prototype.
void(*	fhssChangeChannel )(uint8_t CurrentChannel)
	FHSS Change Channel callback prototype.
void(*	cadDone )(bool channelActivityDetected)
	CAD Done callback prototype.

Detailed Description

Actual implementation of a SX1276 radio, includes some modifications to make it compatible with the MB1 LAS board

Definition at line 24 of file sx1272-hal.h.

Member Function Documentation

void AntSwDeInit ( void ) [protected, virtual]

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

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

Implements SX1272.

Definition at line 157 of file sx1272-hal.cpp.

void AntSwInit ( void ) [protected, virtual]

Initializes the RF Switch I/Os pins interface.

Implements SX1272.

Definition at line 152 of file sx1272-hal.cpp.

bool CheckRfFrequency ( uint32_t frequency ) [virtual]

Detect the board connected by reading the value of the antenna switch pin.

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 SX1272.

Definition at line 182 of file sx1272-hal.cpp.

uint8_t GetFskBandwidthRegValue ( uint32_t bandwidth ) [static, protected, inherited]

Returns the known FSK bandwidth registers value

Parameters:

[IN]	bandwidth Bandwidth value in Hz

Return values:

regValue Bandwidth register value.

Definition at line 165 of file sx1272.cpp.

uint8_t GetPaSelect ( uint32_t channel ) [protected, virtual]

Gets the board PA selection configuration.

Parameters:

[IN]	channel Channel frequency in Hz

Return values:

PaSelect RegPaConfig PaSelect value

Implements SX1272.

Definition at line 130 of file sx1272-hal.cpp.

int16_t GetRssi ( ModemType modem ) [virtual, inherited]

Reads the current RSSI value.

Return values:

rssiValue Current RSSI value in [dBm]

Implements Radio.

Definition at line 851 of file sx1272.cpp.

RadioState GetState ( void ) [virtual, inherited]

Return current radio status

Parameters:

status Radio status. [IDLE, RX_RUNNING, TX_RUNNING]

Implements Radio.

Definition at line 83 of file sx1272.cpp.

void IoDeInit ( void ) [protected, virtual]

De-initializes the radio I/Os pins interface.

Remarks:: Useful when going in MCU lowpower modes

Implements SX1272.

Definition at line 125 of file sx1272-hal.cpp.

void IoInit ( void ) [protected, virtual]

Initializes the radio I/Os pins interface.

Implements SX1272.

Definition at line 87 of file sx1272-hal.cpp.

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

Initializes DIO IRQ handlers.

Parameters:

[IN]	irqHandlers Array containing the IRQ callback functions

Implements SX1272.

Definition at line 111 of file sx1272-hal.cpp.

bool IsChannelFree	(	ModemType	modem,
		uint32_t	freq,
		int8_t	rssiThresh
	)		`[virtual, inherited]`

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 sx1272.cpp.

void OnDio0Irq ( void ) [protected, virtual, inherited]

DIO 0 IRQ callback.

Definition at line 970 of file sx1272.cpp.

void OnDio1Irq ( void ) [protected, virtual, inherited]

DIO 1 IRQ callback.

Definition at line 1166 of file sx1272.cpp.

void OnDio2Irq ( void ) [protected, virtual, inherited]

DIO 2 IRQ callback.

Definition at line 1240 of file sx1272.cpp.

void OnDio3Irq ( void ) [protected, virtual, inherited]

DIO 3 IRQ callback.

Definition at line 1304 of file sx1272.cpp.

void OnDio4Irq ( void ) [protected, virtual, inherited]

DIO 4 IRQ callback.

Definition at line 1335 of file sx1272.cpp.

void OnDio5Irq ( void ) [protected, virtual, inherited]

DIO 5 IRQ callback.

Definition at line 1354 of file sx1272.cpp.

void OnTimeoutIrq ( void ) [protected, virtual, inherited]

Tx & Rx timeout timer callback.

Definition at line 924 of file sx1272.cpp.

void RadioRegistersInit ( ) [protected, virtual]

Initializes the radio registers.

Implements SX1272.

Definition at line 93 of file sx1272-hal.cpp.

uint32_t Random ( void ) [virtual, inherited]

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 122 of file sx1272.cpp.

uint8_t Read ( uint8_t addr ) [virtual]

Reads the radio register at the specified address.

Parameters:

[IN],: addr Register address

Return values:

data	Register value

Implements SX1272.

Definition at line 203 of file sx1272-hal.cpp.

void Read	(	uint8_t	addr,
		uint8_t *	buffer,
		uint8_t	size
	)		`[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 SX1272.

Definition at line 223 of file sx1272-hal.cpp.

void ReadFifo	(	uint8_t *	buffer,
		uint8_t	size
	)		`[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 SX1272.

Definition at line 241 of file sx1272-hal.cpp.

void Reset ( void ) [virtual]

Reset the SX1276.

Implements SX1272.

Definition at line 189 of file sx1272-hal.cpp.

void Rx ( uint32_t timeout ) [virtual, inherited]

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 640 of file sx1272.cpp.

void RxChainCalibration ( void ) [protected, inherited]

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 79 of file sx1272.cpp.

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

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 552 of file sx1272.cpp.

void SetAntSw ( uint8_t rxTx ) [protected, virtual]

Controls the antena switch if necessary.

Remarks:: see errata note

Parameters:

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

Implements SX1272.

Definition at line 162 of file sx1272-hal.cpp.

void SetAntSwLowPower ( bool status ) [protected, virtual]

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

Parameters:

[IN]	status enable or disable

Implements SX1272.

Definition at line 135 of file sx1272-hal.cpp.

void SetChannel ( uint32_t freq ) [virtual, inherited]

Sets the channel frequency.

Parameters:

[IN]	freq Channel RF frequency

Implements Radio.

Definition at line 88 of file sx1272.cpp.

void SetModem ( ModemType modem ) [virtual, inherited]

Configures the SX1276 with the given modem.

Parameters:

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

Implements Radio.

Definition at line 896 of file sx1272.cpp.

void SetOpMode ( uint8_t opMode ) [protected, virtual, inherited]

Sets the SX1276 operating mode.

Parameters:

[IN]	opMode New operating mode

Definition at line 871 of file sx1272.cpp.

void SetRxConfig	(	ModemType	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, inherited]`

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 181 of file sx1272.cpp.

void SetTxConfig	(	ModemType	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, inherited]`

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 313 of file sx1272.cpp.

void Sleep ( void ) [virtual, inherited]

Sets the radio in sleep mode.

Implements Radio.

Definition at line 623 of file sx1272.cpp.

void SpiInit ( void ) [protected, virtual]

Initializes the radio SPI.

Implements SX1272.

Definition at line 102 of file sx1272-hal.cpp.

void Standby ( void ) [virtual, inherited]

Sets the radio in standby mode.

Implements Radio.

Definition at line 632 of file sx1272.cpp.

void StartCad ( void ) [virtual, inherited]

Start a Channel Activity Detection.

Implements Radio.

Definition at line 817 of file sx1272.cpp.

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

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 495 of file sx1272.cpp.

void Tx ( uint32_t timeout ) [virtual, inherited]

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 756 of file sx1272.cpp.

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

Writes the radio register at the specified address.

Parameters:

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

Implements SX1272.

Definition at line 198 of file sx1272-hal.cpp.

void Write	(	uint8_t	addr,
		uint8_t *	buffer,
		uint8_t	size
	)		`[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 SX1272.

Definition at line 210 of file sx1272-hal.cpp.

void WriteFifo	(	uint8_t *	buffer,
		uint8_t	size
	)		`[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 SX1272.

Definition at line 236 of file sx1272-hal.cpp.

Field Documentation

DigitalInOut antSwitch [protected]

Antenna switch GPIO pins objects

Definition at line 30 of file sx1272-hal.h.

void( * cadDone)(bool channelActivityDetected) [protected, inherited]

CAD Done callback prototype.

Parameters:

[IN]	ChannelDetected Channel Activity detected during the CAD

Definition at line 77 of file radio.h.

InterruptIn dio0 [protected, inherited]

SX1276 DIO pins

Definition at line 70 of file sx1272.h.

DioIrqHandler* dioIrq [protected, inherited]

Hardware DIO IRQ functions

Definition at line 86 of file sx1272.h.

void( * fhssChangeChannel)(uint8_t CurrentChannel) [protected, inherited]

FHSS Change Channel callback prototype.

Parameters:

[IN]	CurrentChannel Index number of the current channel

Definition at line 70 of file radio.h.

DigitalInOut reset [protected, inherited]

SX1276 Reset pin

Definition at line 65 of file sx1272.h.

void( * rxDone)(uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr) [protected, inherited]

Rx Done callback prototype.

Parameters:

[IN]	payload Received buffer pointer
[IN]	size Received buffer size
[IN]	rssi RSSI value computed while receiving the frame [dBm]
[IN]	snr Raw SNR value given by the radio hardware FSK : N/A ( set to 0 ) LoRa: SNR value in dB

Definition at line 53 of file radio.h.

void( * rxError)() [protected, inherited]

Rx Error callback prototype.

Definition at line 63 of file radio.h.

void( * rxTimeout)() [protected, inherited]

Rx Timeout callback prototype.

Definition at line 58 of file radio.h.

uint8_t rxTx [protected, inherited]

rxTx: [1: Tx, 0: Rx]

Definition at line 98 of file sx1272.h.

SPI spi [protected, inherited]

SPI Interface

Definition at line 59 of file sx1272.h.

void( * txDone)() [protected, inherited]

Tx Done callback prototype.

Definition at line 36 of file radio.h.

void( * txTimeout)() [protected, inherited]

Tx Timeout callback prototype.

Definition at line 41 of file radio.h.

Timeout txTimeoutTimer [protected, inherited]

Tx and Rx timers

Definition at line 91 of file sx1272.h.

Type:	Library
Created:	31 May 2015
Imports:	18
Forks:	0
Commits:	19
Dependents:	3
Dependencies:	0
Followers:	3

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