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2024-02-24 8b51c78f1b88d94a89bb8c37ae38a54f523cb597

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8b51c7	1	/*!
Q	2	* \file sx126x.h
	3	*
	4	* \brief SX126x driver implementation
	5	*
	6	* \copyright Revised BSD License, see section \ref LICENSE.
	7	*
	8	* \code
	9	* ______ _
	10	* / _____) _ \| \|
	11	* ( (____ _____ ____ _\| \|_ _____ ____\| \|__
	12	* \____ \\| ___ \| (_ _) ___ \|/ ___) _ \
	13	* _____) ) ____\| \| \| \|\| \|_\| ____( (___\| \| \| \|
	14	* (______/\|_____)_\|_\|_\| \__)_____)\____)_\| \|_\|
	15	* (C)2013-2017 Semtech
	16	*
	17	* \endcode
	18	*
	19	* \author Miguel Luis ( Semtech )
	20	*
	21	* \author Gregory Cristian ( Semtech )
	22	*/
	23	#ifndef __SX126x_H__
	24	#define __SX126x_H__
	25
	26	#include <stdint.h>
	27	#include <stdbool.h>
	28
	29
	30	#define SX1261 1
	31	#define SX1262 2
	32
	33	#ifdef USE_TCXO
	34	/*!
	35	* Radio complete Wake-up Time with TCXO stabilisation time
	36	*/
	37	#define RADIO_TCXO_SETUP_TIME 5 // [ms]
	38	#else
	39	/*!
	40	* Radio complete Wake-up Time with TCXO stabilisation time
	41	*/
	42	#define RADIO_TCXO_SETUP_TIME 0 // No Used
	43	#endif
	44
	45	/*!
	46	* Radio complete Wake-up Time with margin for temperature compensation
	47	*/
	48	#define RADIO_WAKEUP_TIME 3 // [ms]
	49
	50	/*!
	51	* \brief Compensation delay for SetAutoTx/Rx functions in 15.625 microseconds
	52	*/
	53	#define AUTO_RX_TX_OFFSET 2
	54
	55	/*!
	56	* \brief LFSR initial value to compute IBM type CRC
	57	*/
	58	#define CRC_IBM_SEED 0xFFFF
	59
	60	/*!
	61	* \brief LFSR initial value to compute CCIT type CRC
	62	*/
	63	#define CRC_CCITT_SEED 0x1D0F
	64
	65	/*!
	66	* \brief Polynomial used to compute IBM CRC
	67	*/
	68	#define CRC_POLYNOMIAL_IBM 0x8005
	69
	70	/*!
	71	* \brief Polynomial used to compute CCIT CRC
	72	*/
	73	#define CRC_POLYNOMIAL_CCITT 0x1021
	74
	75	/*!
	76	* \brief The address of the register holding the first byte defining the CRC seed
	77	*
	78	*/
	79	#define REG_LR_CRCSEEDBASEADDR 0x06BC
	80
	81	/*!
	82	* \brief The address of the register holding the first byte defining the CRC polynomial
	83	*/
	84	#define REG_LR_CRCPOLYBASEADDR 0x06BE
	85
	86	/*!
	87	* \brief The address of the register holding the first byte defining the whitening seed
	88	*/
	89	#define REG_LR_WHITSEEDBASEADDR_MSB 0x06B8
	90	#define REG_LR_WHITSEEDBASEADDR_LSB 0x06B9
	91
	92	/*!
	93	* \brief The address of the register holding the packet configuration
	94	*/
	95	#define REG_LR_PACKETPARAMS 0x0704
	96
	97	/*!
	98	* \brief The address of the register holding the payload size
	99	*/
	100	#define REG_LR_PAYLOADLENGTH 0x0702
	101
	102	/*!
	103	* \brief The addresses of the registers holding SyncWords values
	104	*/
	105	#define REG_LR_SYNCWORDBASEADDRESS 0x06C0
	106
	107	/*!
	108	* \brief The addresses of the register holding LoRa Modem SyncWord value
	109	*/
	110	#define REG_LR_SYNCWORD 0x0740
	111
	112	/*!
	113	* Syncword for Private LoRa networks
	114	*/
	115	#define LORA_MAC_PRIVATE_SYNCWORD 0x1424
	116
	117	/*!
	118	* Syncword for Public LoRa networks
	119	*/
	120	#define LORA_MAC_PUBLIC_SYNCWORD 0x3444
	121
	122	/*!
	123	* The address of the register giving a 4 bytes random number
	124	*/
	125	#define RANDOM_NUMBER_GENERATORBASEADDR 0x0819
	126
	127	/*!
	128	* The address of the register holding RX Gain value (0x94: power saving, 0x96: rx boosted)
	129	*/
	130	#define REG_RX_GAIN 0x08AC
	131
	132	/*!
	133	* Change the value on the device internal trimming capacitor
	134	*/
	135	#define REG_XTA_TRIM 0x0911
	136
	137	/*!
	138	* Set the current max value in the over current protection
	139	*/
	140	#define REG_OCP 0x08E7
	141
	142	/*!
	143	* \brief Structure describing the radio status
	144	*/
	145	typedef union RadioStatus_u
	146	{
	147	uint8_t Value;
	148	struct
	149	{ //bit order is lsb -> msb
	150	uint8_t Reserved : 1; //!< Reserved
	151	uint8_t CmdStatus : 3; //!< Command status
	152	uint8_t ChipMode : 3; //!< Chip mode
	153	uint8_t CpuBusy : 1; //!< Flag for CPU radio busy
	154	}Fields;
	155	}RadioStatus_t;
	156
	157	/*!
	158	* \brief Structure describing the error codes for callback functions
	159	*/
	160	typedef enum
	161	{
	162	IRQ_HEADER_ERROR_CODE = 0x01,
	163	IRQ_SYNCWORD_ERROR_CODE = 0x02,
	164	IRQ_CRC_ERROR_CODE = 0x04,
	165	}IrqErrorCode_t;
	166
	167	enum IrqPblSyncHeaderCode_t
	168	{
	169	IRQ_PBL_DETECT_CODE = 0x01,
	170	IRQ_SYNCWORD_VALID_CODE = 0x02,
	171	IRQ_HEADER_VALID_CODE = 0x04,
	172	};
	173
	174	/*!
	175	* \brief Represents the operating mode the radio is actually running
	176	*/
	177	typedef enum
	178	{
	179	MODE_SLEEP = 0x00, //! The radio is in sleep mode
	180	MODE_STDBY_RC, //! The radio is in standby mode with RC oscillator
	181	MODE_STDBY_XOSC, //! The radio is in standby mode with XOSC oscillator
	182	MODE_FS, //! The radio is in frequency synthesis mode
	183	MODE_TX, //! The radio is in transmit mode
	184	MODE_RX, //! The radio is in receive mode
	185	MODE_RX_DC, //! The radio is in receive duty cycle mode
	186	MODE_CAD //! The radio is in channel activity detection mode
	187	}RadioOperatingModes_t;
	188
	189	/*!
	190	* \brief Declares the oscillator in use while in standby mode
	191	*
	192	* Using the STDBY_RC standby mode allow to reduce the energy consumption
	193	* STDBY_XOSC should be used for time critical applications
	194	*/
	195	typedef enum
	196	{
	197	STDBY_RC = 0x00,
	198	STDBY_XOSC = 0x01,
	199	}RadioStandbyModes_t;
	200
	201	/*!
	202	* \brief Declares the power regulation used to power the device
	203	*
	204	* This command allows the user to specify if DC-DC or LDO is used for power regulation.
	205	* Using only LDO implies that the Rx or Tx current is doubled
	206	*/
	207	typedef enum
	208	{
	209	USE_LDO = 0x00, // default
	210	USE_DCDC = 0x01,
	211	}RadioRegulatorMode_t;
	212
	213	/*!
	214	* \brief Represents the possible packet type (i.e. modem) used
	215	*/
	216	typedef enum
	217	{
	218	PACKET_TYPE_GFSK = 0x00,
	219	PACKET_TYPE_LORA = 0x01,
	220	PACKET_TYPE_NONE = 0x0F,
	221	}RadioPacketTypes_t;
	222
	223	/*!
	224	* \brief Represents the ramping time for power amplifier
	225	*/
	226	typedef enum
	227	{
	228	RADIO_RAMP_10_US = 0x00,
	229	RADIO_RAMP_20_US = 0x01,
	230	RADIO_RAMP_40_US = 0x02,
	231	RADIO_RAMP_80_US = 0x03,
	232	RADIO_RAMP_200_US = 0x04,
	233	RADIO_RAMP_800_US = 0x05,
	234	RADIO_RAMP_1700_US = 0x06,
	235	RADIO_RAMP_3400_US = 0x07,
	236	}RadioRampTimes_t;
	237
	238	/*!
	239	* \brief Represents the number of symbols to be used for channel activity detection operation
	240	*/
	241	typedef enum
	242	{
	243	LORA_CAD_01_SYMBOL = 0x00,
	244	LORA_CAD_02_SYMBOL = 0x01,
	245	LORA_CAD_04_SYMBOL = 0x02,
	246	LORA_CAD_08_SYMBOL = 0x03,
	247	LORA_CAD_16_SYMBOL = 0x04,
	248	}RadioLoRaCadSymbols_t;
	249
	250	/*!
	251	* \brief Represents the Channel Activity Detection actions after the CAD operation is finished
	252	*/
	253	typedef enum
	254	{
	255	LORA_CAD_ONLY = 0x00,
	256	LORA_CAD_RX = 0x01,
	257	LORA_CAD_LBT = 0x10,
	258	}RadioCadExitModes_t;
	259
	260	/*!
	261	* \brief Represents the modulation shaping parameter
	262	*/
	263	typedef enum
	264	{
	265	MOD_SHAPING_OFF = 0x00,
	266	MOD_SHAPING_G_BT_03 = 0x08,
	267	MOD_SHAPING_G_BT_05 = 0x09,
	268	MOD_SHAPING_G_BT_07 = 0x0A,
	269	MOD_SHAPING_G_BT_1 = 0x0B,
	270	}RadioModShapings_t;
	271
	272	/*!
	273	* \brief Represents the modulation shaping parameter
	274	*/
	275	typedef enum
	276	{
	277	RX_BW_4800 = 0x1F,
	278	RX_BW_5800 = 0x17,
	279	RX_BW_7300 = 0x0F,
	280	RX_BW_9700 = 0x1E,
	281	RX_BW_11700 = 0x16,
	282	RX_BW_14600 = 0x0E,
	283	RX_BW_19500 = 0x1D,
	284	RX_BW_23400 = 0x15,
	285	RX_BW_29300 = 0x0D,
	286	RX_BW_39000 = 0x1C,
	287	RX_BW_46900 = 0x14,
	288	RX_BW_58600 = 0x0C,
	289	RX_BW_78200 = 0x1B,
	290	RX_BW_93800 = 0x13,
	291	RX_BW_117300 = 0x0B,
	292	RX_BW_156200 = 0x1A,
	293	RX_BW_187200 = 0x12,
	294	RX_BW_234300 = 0x0A,
	295	RX_BW_312000 = 0x19,
	296	RX_BW_373600 = 0x11,
	297	RX_BW_467000 = 0x09,
	298	}RadioRxBandwidth_t;
	299
	300	/*!
	301	* \brief Represents the possible spreading factor values in LoRa packet types
	302	*/
	303	typedef enum
	304	{
	305	LORA_SF5 = 0x05,
	306	LORA_SF6 = 0x06,
	307	LORA_SF7 = 0x07,
	308	LORA_SF8 = 0x08,
	309	LORA_SF9 = 0x09,
	310	LORA_SF10 = 0x0A,
	311	LORA_SF11 = 0x0B,
	312	LORA_SF12 = 0x0C,
	313	}RadioLoRaSpreadingFactors_t;
	314
	315	/*!
	316	* \brief Represents the bandwidth values for LoRa packet type
	317	*/
	318	typedef enum
	319	{
	320	LORA_BW_500 = 6,
	321	LORA_BW_250 = 5,
	322	LORA_BW_125 = 4,
	323	LORA_BW_062 = 3,
	324	LORA_BW_041 = 10,
	325	LORA_BW_031 = 2,
	326	LORA_BW_020 = 9,
	327	LORA_BW_015 = 1,
	328	LORA_BW_010 = 8,
	329	LORA_BW_007 = 0,
	330	}RadioLoRaBandwidths_t;
	331
	332	/*!
	333	* \brief Represents the coding rate values for LoRa packet type
	334	*/
	335	typedef enum
	336	{
	337	LORA_CR_4_5 = 0x01,
	338	LORA_CR_4_6 = 0x02,
	339	LORA_CR_4_7 = 0x03,
	340	LORA_CR_4_8 = 0x04,
	341	}RadioLoRaCodingRates_t;
	342
	343	/*!
	344	* \brief Represents the preamble length used to detect the packet on Rx side
	345	*/
	346	typedef enum
	347	{
	348	RADIO_PREAMBLE_DETECTOR_OFF = 0x00, //!< Preamble detection length off
	349	RADIO_PREAMBLE_DETECTOR_08_BITS = 0x04, //!< Preamble detection length 8 bits
	350	RADIO_PREAMBLE_DETECTOR_16_BITS = 0x05, //!< Preamble detection length 16 bits
	351	RADIO_PREAMBLE_DETECTOR_24_BITS = 0x06, //!< Preamble detection length 24 bits
	352	RADIO_PREAMBLE_DETECTOR_32_BITS = 0x07, //!< Preamble detection length 32 bit
	353	}RadioPreambleDetection_t;
	354
	355	/*!
	356	* \brief Represents the possible combinations of SyncWord correlators activated
	357	*/
	358	typedef enum
	359	{
	360	RADIO_ADDRESSCOMP_FILT_OFF = 0x00, //!< No correlator turned on, i.e. do not search for SyncWord
	361	RADIO_ADDRESSCOMP_FILT_NODE = 0x01,
	362	RADIO_ADDRESSCOMP_FILT_NODE_BROAD = 0x02,
	363	}RadioAddressComp_t;
	364
	365	/*!
	366	* \brief Radio GFSK packet length mode
	367	*/
	368	typedef enum
	369	{
	370	RADIO_PACKET_FIXED_LENGTH = 0x00, //!< The packet is known on both sides, no header included in the packet
	371	RADIO_PACKET_VARIABLE_LENGTH = 0x01, //!< The packet is on variable size, header included
	372	}RadioPacketLengthModes_t;
	373
	374	/*!
	375	* \brief Represents the CRC length
	376	*/
	377	typedef enum
	378	{
	379	RADIO_CRC_OFF = 0x01, //!< No CRC in use
	380	RADIO_CRC_1_BYTES = 0x00,
	381	RADIO_CRC_2_BYTES = 0x02,
	382	RADIO_CRC_1_BYTES_INV = 0x04,
	383	RADIO_CRC_2_BYTES_INV = 0x06,
	384	RADIO_CRC_2_BYTES_IBM = 0xF1,
	385	RADIO_CRC_2_BYTES_CCIT = 0xF2,
	386	}RadioCrcTypes_t;
	387
	388	/*!
	389	* \brief Radio whitening mode activated or deactivated
	390	*/
	391	typedef enum
	392	{
	393	RADIO_DC_FREE_OFF = 0x00,
	394	RADIO_DC_FREEWHITENING = 0x01,
	395	}RadioDcFree_t;
	396
	397	/*!
	398	* \brief Holds the Radio lengths mode for the LoRa packet type
	399	*/
	400	typedef enum
	401	{
	402	LORA_PACKET_VARIABLE_LENGTH = 0x00, //!< The packet is on variable size, header included
	403	LORA_PACKET_FIXED_LENGTH = 0x01, //!< The packet is known on both sides, no header included in the packet
	404	LORA_PACKET_EXPLICIT = LORA_PACKET_VARIABLE_LENGTH,
	405	LORA_PACKET_IMPLICIT = LORA_PACKET_FIXED_LENGTH,
	406	}RadioLoRaPacketLengthsMode_t;
	407
	408	/*!
	409	* \brief Represents the CRC mode for LoRa packet type
	410	*/
	411	typedef enum
	412	{
	413	LORA_CRC_ON = 0x01, //!< CRC activated
	414	LORA_CRC_OFF = 0x00, //!< CRC not used
	415	}RadioLoRaCrcModes_t;
	416
	417	/*!
	418	* \brief Represents the IQ mode for LoRa packet type
	419	*/
	420	typedef enum
	421	{
	422	LORA_IQ_NORMAL = 0x00,
	423	LORA_IQ_INVERTED = 0x01,
	424	}RadioLoRaIQModes_t;
	425
	426	/*!
	427	* \brief Represents the voltage used to control the TCXO on/off from DIO3
	428	*/
	429	typedef enum
	430	{
	431	TCXO_CTRL_1_6V = 0x00,
	432	TCXO_CTRL_1_7V = 0x01,
	433	TCXO_CTRL_1_8V = 0x02,
	434	TCXO_CTRL_2_2V = 0x03,
	435	TCXO_CTRL_2_4V = 0x04,
	436	TCXO_CTRL_2_7V = 0x05,
	437	TCXO_CTRL_3_0V = 0x06,
	438	TCXO_CTRL_3_3V = 0x07,
	439	}RadioTcxoCtrlVoltage_t;
	440
	441	/*!
	442	* \brief Represents the interruption masks available for the radio
	443	*
	444	* \remark Note that not all these interruptions are available for all packet types
	445	*/
	446	typedef enum
	447	{
	448	IRQ_RADIO_NONE = 0x0000,
	449	IRQ_TX_DONE = 0x0001,
	450	IRQ_RX_DONE = 0x0002,
	451	IRQ_PREAMBLE_DETECTED = 0x0004,
	452	IRQ_SYNCWORD_VALID = 0x0008,
	453	IRQ_HEADER_VALID = 0x0010,
	454	IRQ_HEADER_ERROR = 0x0020,
	455	IRQ_CRC_ERROR = 0x0040,
	456	IRQ_CAD_DONE = 0x0080,
	457	IRQ_CAD_ACTIVITY_DETECTED = 0x0100,
	458	IRQ_RX_TX_TIMEOUT = 0x0200,
	459	IRQ_RADIO_ALL = 0xFFFF,
	460	}RadioIrqMasks_t;
	461
	462	/*!
	463	* \brief Represents all possible opcode understood by the radio
	464	*/
	465	typedef enum RadioCommands_e
	466	{
	467	RADIO_GET_STATUS = 0xC0,
	468	RADIO_WRITE_REGISTER = 0x0D,
	469	RADIO_READ_REGISTER = 0x1D,
	470	RADIO_WRITE_BUFFER = 0x0E,
	471	RADIO_READ_BUFFER = 0x1E,
	472	RADIO_SET_SLEEP = 0x84,
	473	RADIO_SET_STANDBY = 0x80,
	474	RADIO_SET_FS = 0xC1,
	475	RADIO_SET_TX = 0x83,
	476	RADIO_SET_RX = 0x82,
	477	RADIO_SET_RXDUTYCYCLE = 0x94,
	478	RADIO_SET_CAD = 0xC5,
	479	RADIO_SET_TXCONTINUOUSWAVE = 0xD1,
	480	RADIO_SET_TXCONTINUOUSPREAMBLE = 0xD2,
	481	RADIO_SET_PACKETTYPE = 0x8A,
	482	RADIO_GET_PACKETTYPE = 0x11,
	483	RADIO_SET_RFFREQUENCY = 0x86,
	484	RADIO_SET_TXPARAMS = 0x8E,
	485	RADIO_SET_PACONFIG = 0x95,
	486	RADIO_SET_CADPARAMS = 0x88,
	487	RADIO_SET_BUFFERBASEADDRESS = 0x8F,
	488	RADIO_SET_MODULATIONPARAMS = 0x8B,
	489	RADIO_SET_PACKETPARAMS = 0x8C,
	490	RADIO_GET_RXBUFFERSTATUS = 0x13,
	491	RADIO_GET_PACKETSTATUS = 0x14,
	492	RADIO_GET_RSSIINST = 0x15,
	493	RADIO_GET_STATS = 0x10,
	494	RADIO_RESET_STATS = 0x00,
	495	RADIO_CFG_DIOIRQ = 0x08,
	496	RADIO_GET_IRQSTATUS = 0x12,
	497	RADIO_CLR_IRQSTATUS = 0x02,
	498	RADIO_CALIBRATE = 0x89,
	499	RADIO_CALIBRATEIMAGE = 0x98,
	500	RADIO_SET_REGULATORMODE = 0x96,
	501	RADIO_GET_ERROR = 0x17,
	502	RADIO_CLR_ERROR = 0x07,
	503	RADIO_SET_TCXOMODE = 0x97,
	504	RADIO_SET_TXFALLBACKMODE = 0x93,
	505	RADIO_SET_RFSWITCHMODE = 0x9D,
	506	RADIO_SET_STOPRXTIMERONPREAMBLE = 0x9F,
	507	RADIO_SET_LORASYMBTIMEOUT = 0xA0,
	508	}RadioCommands_t;
	509
	510	/*!
	511	* \brief The type describing the modulation parameters for every packet types
	512	*/
	513	typedef struct
	514	{
	515	RadioPacketTypes_t PacketType; //!< Packet to which the modulation parameters are referring to.
	516	struct
	517	{
	518	struct
	519	{
	520	uint32_t BitRate;
	521	uint32_t Fdev;
	522	RadioModShapings_t ModulationShaping;
	523	uint8_t Bandwidth;
	524	}Gfsk;
	525	struct
	526	{
	527	RadioLoRaSpreadingFactors_t SpreadingFactor; //!< Spreading Factor for the LoRa modulation
	528	RadioLoRaBandwidths_t Bandwidth; //!< Bandwidth for the LoRa modulation
	529	RadioLoRaCodingRates_t CodingRate; //!< Coding rate for the LoRa modulation
	530	uint8_t LowDatarateOptimize; //!< Indicates if the modem uses the low datarate optimization
	531	}LoRa;
	532	}Params; //!< Holds the modulation parameters structure
	533	}ModulationParams_t;
	534
	535	/*!
	536	* \brief The type describing the packet parameters for every packet types
	537	*/
	538	typedef struct
	539	{
	540	RadioPacketTypes_t PacketType; //!< Packet to which the packet parameters are referring to.
	541	struct
	542	{
	543	/*!
	544	* \brief Holds the GFSK packet parameters
	545	*/
	546	struct
	547	{
	548	uint16_t PreambleLength; //!< The preamble Tx length for GFSK packet type in bit
	549	RadioPreambleDetection_t PreambleMinDetect; //!< The preamble Rx length minimal for GFSK packet type
	550	uint8_t SyncWordLength; //!< The synchronization word length for GFSK packet type
	551	RadioAddressComp_t AddrComp; //!< Activated SyncWord correlators
	552	RadioPacketLengthModes_t HeaderType; //!< If the header is explicit, it will be transmitted in the GFSK packet. If the header is implicit, it will not be transmitted
	553	uint8_t PayloadLength; //!< Size of the payload in the GFSK packet
	554	RadioCrcTypes_t CrcLength; //!< Size of the CRC block in the GFSK packet
	555	RadioDcFree_t DcFree;
	556	}Gfsk;
	557	/*!
	558	* \brief Holds the LoRa packet parameters
	559	*/
	560	struct
	561	{
	562	uint16_t PreambleLength; //!< The preamble length is the number of LoRa symbols in the preamble
	563	RadioLoRaPacketLengthsMode_t HeaderType; //!< If the header is explicit, it will be transmitted in the LoRa packet. If the header is implicit, it will not be transmitted
	564	uint8_t PayloadLength; //!< Size of the payload in the LoRa packet
	565	RadioLoRaCrcModes_t CrcMode; //!< Size of CRC block in LoRa packet
	566	RadioLoRaIQModes_t InvertIQ; //!< Allows to swap IQ for LoRa packet
	567	}LoRa;
	568	}Params; //!< Holds the packet parameters structure
	569	}PacketParams_t;
	570
	571	/*!
	572	* \brief Represents the packet status for every packet type
	573	*/
	574	typedef struct
	575	{
	576	RadioPacketTypes_t packetType; //!< Packet to which the packet status are referring to.
	577	struct
	578	{
	579	struct
	580	{
	581	uint8_t RxStatus;
	582	int8_t RssiAvg; //!< The averaged RSSI
	583	int8_t RssiSync; //!< The RSSI measured on last packet
	584	uint32_t FreqError;
	585	}Gfsk;
	586	struct
	587	{
	588	int8_t RssiPkt; //!< The RSSI of the last packet
	589	int8_t SnrPkt; //!< The SNR of the last packet
	590	int8_t SignalRssiPkt;
	591	uint32_t FreqError;
	592	}LoRa;
	593	}Params;
	594	}PacketStatus_t;
	595
	596	/*!
	597	* \brief Represents the Rx internal counters values when GFSK or LoRa packet type is used
	598	*/
	599	typedef struct
	600	{
	601	RadioPacketTypes_t packetType; //!< Packet to which the packet status are referring to.
	602	uint16_t PacketReceived;
	603	uint16_t CrcOk;
	604	uint16_t LengthError;
	605	}RxCounter_t;
	606
	607	/*!
	608	* \brief Represents a calibration configuration
	609	*/
	610	typedef union
	611	{
	612	struct
	613	{
	614	uint8_t RC64KEnable : 1; //!< Calibrate RC64K clock
	615	uint8_t RC13MEnable : 1; //!< Calibrate RC13M clock
	616	uint8_t PLLEnable : 1; //!< Calibrate PLL
	617	uint8_t ADCPulseEnable : 1; //!< Calibrate ADC Pulse
	618	uint8_t ADCBulkNEnable : 1; //!< Calibrate ADC bulkN
	619	uint8_t ADCBulkPEnable : 1; //!< Calibrate ADC bulkP
	620	uint8_t ImgEnable : 1;
	621	uint8_t : 1;
	622	}Fields;
	623	uint8_t Value;
	624	}CalibrationParams_t;
	625
	626	/*!
	627	* \brief Represents a sleep mode configuration
	628	*/
	629	typedef union
	630	{
	631	struct
	632	{
	633	uint8_t WakeUpRTC : 1; //!< Get out of sleep mode if wakeup signal received from RTC
	634	uint8_t Reset : 1;
	635	uint8_t WarmStart : 1;
	636	uint8_t Reserved : 5;
	637	}Fields;
	638	uint8_t Value;
	639	}SleepParams_t;
	640
	641	/*!
	642	* \brief Represents the possible radio system error states
	643	*/
	644	typedef union
	645	{
	646	struct
	647	{
	648	uint8_t Rc64kCalib : 1; //!< RC 64kHz oscillator calibration failed
	649	uint8_t Rc13mCalib : 1; //!< RC 13MHz oscillator calibration failed
	650	uint8_t PllCalib : 1; //!< PLL calibration failed
	651	uint8_t AdcCalib : 1; //!< ADC calibration failed
	652	uint8_t ImgCalib : 1; //!< Image calibration failed
	653	uint8_t XoscStart : 1; //!< XOSC oscillator failed to start
	654	uint8_t PllLock : 1; //!< PLL lock failed
	655	uint8_t BuckStart : 1; //!< Buck converter failed to start
	656	uint8_t PaRamp : 1; //!< PA ramp failed
	657	uint8_t : 7; //!< Reserved
	658	}Fields;
	659	uint16_t Value;
	660	}RadioError_t;
	661
	662	/*!
	663	* Radio hardware and global parameters
	664	*/
	665	typedef struct SX126x_s
	666	{
	667	// Gpio_t Reset;
	668	// Gpio_t BUSY;
	669	// Gpio_t DIO1;
	670	// Gpio_t DIO2;
	671	// Gpio_t DIO3;
	672	// Spi_t Spi;
	673	PacketParams_t PacketParams;
	674	PacketStatus_t PacketStatus;
	675	ModulationParams_t ModulationParams;
	676	}SX126x_t;
	677
	678	/*!
	679	* Hardware IO IRQ callback function definition
	680	*/
	681	typedef void ( DioIrqHandler )( void );
	682
	683	/*!
	684	* SX126x definitions
	685	*/
	686
	687	/*!
	688	* \brief Provides the frequency of the chip running on the radio and the frequency step
	689	*
	690	* \remark These defines are used for computing the frequency divider to set the RF frequency
	691	*/
	692	#define XTAL_FREQ ( double )32000000
	693	#define FREQ_DIV ( double )pow( 2.0, 25.0 )
	694	#define FREQ_STEP ( double )( XTAL_FREQ / FREQ_DIV )
	695
	696	#define RX_BUFFER_SIZE 256
	697
	698	/*!
	699	* \brief The radio callbacks structure
	700	* Holds function pointers to be called on radio interrupts
	701	*/
	702	typedef struct
	703	{
	704	void ( *txDone )( void ); //!< Pointer to a function run on successful transmission
	705	void ( *rxDone )( void ); //!< Pointer to a function run on successful reception
	706	void ( *rxPreambleDetect )( void ); //!< Pointer to a function run on successful Preamble detection
	707	void ( *rxSyncWordDone )( void ); //!< Pointer to a function run on successful SyncWord reception
	708	void ( *rxHeaderDone )( bool isOk ); //!< Pointer to a function run on successful Header reception
	709	void ( *txTimeout )( void ); //!< Pointer to a function run on transmission timeout
	710	void ( *rxTimeout )( void ); //!< Pointer to a function run on reception timeout
	711	void ( *rxError )( IrqErrorCode_t errCode ); //!< Pointer to a function run on reception error
	712	void ( *cadDone )( bool cadFlag ); //!< Pointer to a function run on channel activity detected
	713	}SX126xCallbacks_t;
	714
	715	/*!
	716	* ============================================================================
	717	* Public functions prototypes
	718	* ============================================================================
	719	*/
	720
	721	/*!
	722	* \brief Initializes the radio driver
	723	*/
	724	void SX126xInit( DioIrqHandler dioIrq );
	725
	726	/*!
	727	* \brief Gets the current Operation Mode of the Radio
	728	*
	729	* \retval RadioOperatingModes_t last operating mode
	730	*/
	731	RadioOperatingModes_t SX126xGetOperatingMode( void );
	732
	733	/*!
	734	* \brief Wakeup the radio if it is in Sleep mode and check that Busy is low
	735	*/
	736	void SX126xCheckDeviceReady( void );
	737
	738	/*!
	739	* \brief Saves the payload to be send in the radio buffer
	740	*
	741	* \param [in] payload A pointer to the payload
	742	* \param [in] size The size of the payload
	743	*/
	744	void SX126xSetPayload( uint8_t *payload, uint8_t size );
	745
	746	/*!
	747	* \brief Reads the payload received. If the received payload is longer
	748	* than maxSize, then the method returns 1 and do not set size and payload.
	749	*
	750	* \param [out] payload A pointer to a buffer into which the payload will be copied
	751	* \param [out] size A pointer to the size of the payload received
	752	* \param [in] maxSize The maximal size allowed to copy into the buffer
	753	*/
	754	uint8_t SX126xGetPayload( uint8_t payload, uint8_t size, uint8_t maxSize );
	755
	756	/*!
	757	* \brief Sends a payload
	758	*
	759	* \param [in] payload A pointer to the payload to send
	760	* \param [in] size The size of the payload to send
	761	* \param [in] timeout The timeout for Tx operation
	762	*/
	763	void SX126xSendPayload( uint8_t *payload, uint8_t size, uint32_t timeout );
	764
	765	/*!
	766	* \brief Sets the Sync Word given by index used in GFSK
	767	*
	768	* \param [in] syncWord SyncWord bytes ( 8 bytes )
	769	*
	770	* \retval status [0: OK, 1: NOK]
	771	*/
	772	uint8_t SX126xSetSyncWord( uint8_t *syncWord );
	773
	774	/*!
	775	* \brief Sets the Initial value for the LFSR used for the CRC calculation
	776	*
	777	* \param [in] seed Initial LFSR value ( 2 bytes )
	778	*
	779	*/
	780	void SX126xSetCrcSeed( uint16_t seed );
	781
	782	/*!
	783	* \brief Sets the seed used for the CRC calculation
	784	*
	785	* \param [in] seed The seed value
	786	*
	787	*/
	788	void SX126xSetCrcPolynomial( uint16_t polynomial );
	789
	790	/*!
	791	* \brief Sets the Initial value of the LFSR used for the whitening in GFSK protocols
	792	*
	793	* \param [in] seed Initial LFSR value
	794	*/
	795	void SX126xSetWhiteningSeed( uint16_t seed );
	796
	797	/*!
	798	* \brief Gets a 32 bits random value generated by the radio
	799	*
	800	* \remark The radio must be in reception mode before executing this function
	801	*
	802	* \retval randomValue 32 bits random value
	803	*/
	804	uint32_t SX126xGetRandom( void );
	805
	806	/*!
	807	* \brief Sets the radio in sleep mode
	808	*
	809	* \param [in] sleepConfig The sleep configuration describing data
	810	* retention and RTC wake-up
	811	*/
	812	void SX126xSetSleep( SleepParams_t sleepConfig );
	813
	814	/*!
	815	* \brief Sets the radio in configuration mode
	816	*
	817	* \param [in] mode The standby mode to put the radio into
	818	*/
	819	void SX126xSetStandby( RadioStandbyModes_t mode );
	820
	821	/*!
	822	* \brief Sets the radio in FS mode
	823	*/
	824	void SX126xSetFs( void );
	825
	826	/*!
	827	* \brief Sets the radio in transmission mode
	828	*
	829	* \param [in] timeout Structure describing the transmission timeout value
	830	*/
	831	void SX126xSetTx( uint32_t timeout );
	832
	833	/*!
	834	* \brief Sets the radio in reception mode
	835	*
	836	* \param [in] timeout Structure describing the reception timeout value
	837	*/
	838	void SX126xSetRx( uint32_t timeout );
	839
	840	/*!
	841	* \brief Sets the radio in reception mode with Boosted LNA gain
	842	*
	843	* \param [in] timeout Structure describing the reception timeout value
	844	*/
	845	void SX126xSetRxBoosted( uint32_t timeout );
	846
	847	/*!
	848	* \brief Sets the Rx duty cycle management parameters
	849	*
	850	* \param [in] rxTime Structure describing reception timeout value
	851	* \param [in] sleepTime Structure describing sleep timeout value
	852	*/
	853	void SX126xSetRxDutyCycle( uint32_t rxTime, uint32_t sleepTime );
	854
	855	/*!
	856	* \brief Sets the radio in CAD mode
	857	*/
	858	void SX126xSetCad( void );
	859
	860	/*!
	861	* \brief Sets the radio in continuous wave transmission mode
	862	*/
	863	void SX126xSetTxContinuousWave( void );
	864
	865	/*!
	866	* \brief Sets the radio in continuous preamble transmission mode
	867	*/
	868	void SX126xSetTxInfinitePreamble( void );
	869
	870	/*!
	871	* \brief Decide which interrupt will stop the internal radio rx timer.
	872	*
	873	* \param [in] enable [0: Timer stop after header/syncword detection
	874	* 1: Timer stop after preamble detection]
	875	*/
	876	void SX126xSetStopRxTimerOnPreambleDetect( bool enable );
	877
	878	/*!
	879	* \brief Set the number of symbol the radio will wait to validate a reception
	880	*
	881	* \param [in] SymbNum number of LoRa symbols
	882	*/
	883	void SX126xSetLoRaSymbNumTimeout( uint8_t SymbNum );
	884
	885	/*!
	886	* \brief Sets the power regulators operating mode
	887	*
	888	* \param [in] mode [0: LDO, 1:DC_DC]
	889	*/
	890	void SX126xSetRegulatorMode( RadioRegulatorMode_t mode );
	891
	892	/*!
	893	* \brief Calibrates the given radio block
	894	*
	895	* \param [in] calibParam The description of blocks to be calibrated
	896	*/
	897	void SX126xCalibrate( CalibrationParams_t calibParam );
	898
	899	/*!
	900	* \brief Calibrates the Image rejection depending of the frequency
	901	*
	902	* \param [in] freq The operating frequency
	903	*/
	904	void SX126xCalibrateImage( uint32_t freq );
	905
	906	/*!
	907	* \brief Activate the extention of the timeout when long preamble is used
	908	*
	909	* \param [in] enable The radio will extend the timeout to cope with long preamble
	910	*/
	911	void SX126xSetLongPreamble( uint8_t enable );
	912
	913	/*!
	914	* \brief Sets the transmission parameters
	915	*
	916	* \param [in] paDutyCycle Duty Cycle for the PA
	917	* \param [in] hpMax 0 for sx1261, 7 for sx1262
	918	* \param [in] deviceSel 1 for sx1261, 0 for sx1262
	919	* \param [in] paLut 0 for 14dBm LUT, 1 for 22dBm LUT
	920	*/
	921	void SX126xSetPaConfig( uint8_t paDutyCycle, uint8_t hpMax, uint8_t deviceSel, uint8_t paLut );
	922
	923	/*!
	924	* \brief Defines into which mode the chip goes after a TX / RX done
	925	*
	926	* \param [in] fallbackMode The mode in which the radio goes
	927	*/
	928	void SX126xSetRxTxFallbackMode( uint8_t fallbackMode );
	929
	930	/*!
	931	* \brief Write data to the radio memory
	932	*
	933	* \param [in] address The address of the first byte to write in the radio
	934	* \param [in] buffer The data to be written in radio's memory
	935	* \param [in] size The number of bytes to write in radio's memory
	936	*/
	937	void SX126xWriteRegisters( uint16_t address, uint8_t *buffer, uint16_t size );
	938
	939	/*!
	940	* \brief Read data from the radio memory
	941	*
	942	* \param [in] address The address of the first byte to read from the radio
	943	* \param [out] buffer The buffer that holds data read from radio
	944	* \param [in] size The number of bytes to read from radio's memory
	945	*/
	946	void SX126xReadRegisters( uint16_t address, uint8_t *buffer, uint16_t size );
	947
	948	/*!
	949	* \brief Write data to the buffer holding the payload in the radio
	950	*
	951	* \param [in] offset The offset to start writing the payload
	952	* \param [in] buffer The data to be written (the payload)
	953	* \param [in] size The number of byte to be written
	954	*/
	955	void SX126xWriteBuffer( uint8_t offset, uint8_t *buffer, uint8_t size );
	956
	957	/*!
	958	* \brief Read data from the buffer holding the payload in the radio
	959	*
	960	* \param [in] offset The offset to start reading the payload
	961	* \param [out] buffer A pointer to a buffer holding the data from the radio
	962	* \param [in] size The number of byte to be read
	963	*/
	964	void SX126xReadBuffer( uint8_t offset, uint8_t *buffer, uint8_t size );
	965
	966	/*!
	967	* \brief Sets the IRQ mask and DIO masks
	968	*
	969	* \param [in] irqMask General IRQ mask
	970	* \param [in] dio1Mask DIO1 mask
	971	* \param [in] dio2Mask DIO2 mask
	972	* \param [in] dio3Mask DIO3 mask
	973	*/
	974	void SX126xSetDioIrqParams( uint16_t irqMask, uint16_t dio1Mask, uint16_t dio2Mask, uint16_t dio3Mask );
	975
	976	/*!
	977	* \brief Returns the current IRQ status
	978	*
	979	* \retval irqStatus IRQ status
	980	*/
	981	uint16_t SX126xGetIrqStatus( void );
	982
	983	/*!
	984	* \brief Indicates if DIO2 is used to control an RF Switch
	985	*
	986	* \param [in] enable true of false
	987	*/
	988	void SX126xSetDio2AsRfSwitchCtrl( uint8_t enable );
	989
	990	/*!
	991	* \brief Indicates if the Radio main clock is supplied from a tcxo
	992	*
	993	* \param [in] tcxoVoltage voltage used to control the TCXO
	994	* \param [in] timeout time given to the TCXO to go to 32MHz
	995	*/
	996	void SX126xSetDio3AsTcxoCtrl( RadioTcxoCtrlVoltage_t tcxoVoltage, uint32_t timeout );
	997
	998	/*!
	999	* \brief Sets the RF frequency
	1000	*
	1001	* \param [in] frequency RF frequency [Hz]
	1002	*/
	1003	void SX126xSetRfFrequency( uint32_t frequency );
	1004
	1005	/*!
	1006	* \brief Sets the radio for the given protocol
	1007	*
	1008	* \param [in] packetType [PACKET_TYPE_GFSK, PACKET_TYPE_LORA]
	1009	*
	1010	* \remark This method has to be called before SetRfFrequency,
	1011	* SetModulationParams and SetPacketParams
	1012	*/
	1013	void SX126xSetPacketType( RadioPacketTypes_t packetType );
	1014
	1015	/*!
	1016	* \brief Gets the current radio protocol
	1017	*
	1018	* \retval packetType [PACKET_TYPE_GFSK, PACKET_TYPE_LORA]
	1019	*/
	1020	RadioPacketTypes_t SX126xGetPacketType( void );
	1021
	1022	/*!
	1023	* \brief Sets the transmission parameters
	1024	*
	1025	* \param [in] power RF output power [-18..13] dBm
	1026	* \param [in] rampTime Transmission ramp up time
	1027	*/
	1028	void SX126xSetTxParams( int8_t power, RadioRampTimes_t rampTime );
	1029
	1030	/*!
	1031	* \brief Set the modulation parameters
	1032	*
	1033	* \param [in] modParams A structure describing the modulation parameters
	1034	*/
	1035	void SX126xSetModulationParams( ModulationParams_t *modParams );
	1036
	1037	/*!
	1038	* \brief Sets the packet parameters
	1039	*
	1040	* \param [in] packetParams A structure describing the packet parameters
	1041	*/
	1042	void SX126xSetPacketParams( PacketParams_t *packetParams );
	1043
	1044	/*!
	1045	* \brief Sets the Channel Activity Detection (CAD) parameters
	1046	*
	1047	* \param [in] cadSymbolNum The number of symbol to use for CAD operations
	1048	* [LORA_CAD_01_SYMBOL, LORA_CAD_02_SYMBOL,
	1049	* LORA_CAD_04_SYMBOL, LORA_CAD_08_SYMBOL,
	1050	* LORA_CAD_16_SYMBOL]
	1051	* \param [in] cadDetPeak Limit for detection of SNR peak used in the CAD
	1052	* \param [in] cadDetMin Set the minimum symbol recognition for CAD
	1053	* \param [in] cadExitMode Operation to be done at the end of CAD action
	1054	* [LORA_CAD_ONLY, LORA_CAD_RX, LORA_CAD_LBT]
	1055	* \param [in] cadTimeout Defines the timeout value to abort the CAD activity
	1056	*/
	1057	void SX126xSetCadParams( RadioLoRaCadSymbols_t cadSymbolNum, uint8_t cadDetPeak, uint8_t cadDetMin, RadioCadExitModes_t cadExitMode, uint32_t cadTimeout );
	1058
	1059	/*!
	1060	* \brief Sets the data buffer base address for transmission and reception
	1061	*
	1062	* \param [in] txBaseAddress Transmission base address
	1063	* \param [in] rxBaseAddress Reception base address
	1064	*/
	1065	void SX126xSetBufferBaseAddress( uint8_t txBaseAddress, uint8_t rxBaseAddress );
	1066
	1067	/*!
	1068	* \brief Gets the current radio status
	1069	*
	1070	* \retval status Radio status
	1071	*/
	1072	RadioStatus_t SX126xGetStatus( void );
	1073
	1074	/*!
	1075	* \brief Returns the instantaneous RSSI value for the last packet received
	1076	*
	1077	* \retval rssiInst Instantaneous RSSI
	1078	*/
	1079	int8_t SX126xGetRssiInst( void );
	1080
	1081	/*!
	1082	* \brief Gets the last received packet buffer status
	1083	*
	1084	* \param [out] payloadLength Last received packet payload length
	1085	* \param [out] rxStartBuffer Last received packet buffer address pointer
	1086	*/
	1087	void SX126xGetRxBufferStatus( uint8_t payloadLength, uint8_t rxStartBuffer );
	1088
	1089	/*!
	1090	* \brief Gets the last received packet payload length
	1091	*
	1092	* \param [out] pktStatus A structure of packet status
	1093	*/
	1094	void SX126xGetPacketStatus( PacketStatus_t *pktStatus );
	1095
	1096	/*!
	1097	* \brief Returns the possible system errors
	1098	*
	1099	* \retval sysErrors Value representing the possible sys failures
	1100	*/
	1101	RadioError_t SX126xGetDeviceErrors( void );
	1102
	1103	/*!
	1104	* \brief Clear all the errors in the device
	1105	*/
	1106	void SX126xClearDeviceErrors( void );
	1107
	1108	/*!
	1109	* \brief Clears the IRQs
	1110	*
	1111	* \param [in] irq IRQ(s) to be cleared
	1112	*/
	1113	void SX126xClearIrqStatus( uint16_t irq );
	1114
	1115	#endif // __SX126x_H__