rfm69

const (
	// FXOSC is the radio's oscillator frequency in Hertz.
	FXOSC = 32000000

	// SPIWriteMode is used to encode register addresses for SPI writes.
	SPIWriteMode = 1 << 7
)

const (
	RegFifo       = 0x00 // FIFO read/write access
	RegOpMode     = 0x01 // Operating modes of the transceiver
	RegDataModul  = 0x02 // Data operation mode and Modulation settings
	RegBitrateMsb = 0x03 // Bit Rate setting, Most Significant Bits
	RegBitrateLsb = 0x04 // Bit Rate setting, Least Significant Bits
	RegFdevMsb    = 0x05 // Frequency Deviation setting, Most Significant Bits
	RegFdevLsb    = 0x06 // Frequency Deviation setting, Least Significant Bits
	RegFrfMsb     = 0x07 // RF Carrier Frequency, Most Significant Bits
	RegFrfMid     = 0x08 // RF Carrier Frequency, Intermediate Bits
	RegFrfLsb     = 0x09 // RF Carrier Frequency, Least Significant Bits
	RegOsc1       = 0x0A // RF Oscillators Settings
	RegAfcCtrl    = 0x0B // AFC control in low modulation index situations
	RegListen1    = 0x0D // Listen Mode settings
	RegListen2    = 0x0E // Listen Mode Idle duration
	RegListen3    = 0x0F // Listen Mode Rx duration
	RegVersion    = 0x10
)

const (
	RegPaLevel = 0x11 // PA selection and Output Power control
	RegPaRamp  = 0x12 // Control of the PA ramp time in FSK mode
	RegOcp     = 0x13 // Over Current Protection control
)

const (
	RegLna        = 0x18 // LNA settings
	RegRxBw       = 0x19 // Channel Filter BW Control
	RegAfcBw      = 0x1A // Channel Filter BW control during the AFC routine
	RegOokPeak    = 0x1B // OOK demodulator selection and control in peak mode
	RegOokAvg     = 0x1C // Average threshold control of the OOK demodulator
	RegOokFix     = 0x1D // Fixed threshold control of the OOK demodulator
	RegAfcFei     = 0x1E // AFC and FEI control and status
	RegAfcMsb     = 0x1F // MSB of the frequency correction of the AFC
	RegAfcLsb     = 0x20 // LSB of the frequency correction of the AFC
	RegFeiMsb     = 0x21 // MSB of the calculated frequency error
	RegFeiLsb     = 0x22 // LSB of the calculated frequency error
	RegRssiConfig = 0x23 // RSSI-related settings
	RegRssiValue  = 0x24 // RSSI value in dBm
)

const (
	RegDioMapping1 = 0x25 // Mapping of pins DIO0 to DIO3
	RegDioMapping2 = 0x26 // Mapping of pins DIO4 and DIO5, ClkOut frequency
	RegIrqFlags1   = 0x27 // Status register: PLL Lock state, Timeout, RSSI > Threshold...
	RegIrqFlags2   = 0x28 // Status register: FIFO handling flags...
	RegRssiThresh  = 0x29 // RSSI Threshold control
	RegRxTimeout1  = 0x2A // Timeout duration between Rx request and RSSI detection
	RegRxTimeout2  = 0x2B // Timeout duration between RSSI detection and PayloadReady
)

const (
	RegPreambleMsb   = 0x2C // Preamble length, MSB
	RegPreambleLsb   = 0x2D // Preamble length, LSB
	RegSyncConfig    = 0x2E // Sync Word Recognition control
	RegSyncValue1    = 0x2F // Sync Word bytes, 1 through 8
	RegSyncValue2    = 0x30
	RegSyncValue3    = 0x31
	RegSyncValue4    = 0x32
	RegSyncValue5    = 0x33
	RegSyncValue6    = 0x34
	RegSyncValue7    = 0x35
	RegSyncValue8    = 0x36
	RegPacketConfig1 = 0x37 // Packet mode settings
	RegPayloadLength = 0x38 // Payload length setting
	RegNodeAdrs      = 0x39 // Node address
	RegBroadcastAdrs = 0x3A // Broadcast address
	RegAutoModes     = 0x3B // Auto modes settings
	RegFifoThresh    = 0x3C // Fifo threshold, Tx start condition
	RegPacketConfig2 = 0x3D // Packet mode settings
	RegAesKey1       = 0x3E // 16 bytes of the cypher key
	RegAesKey2       = 0x3F
	RegAesKey3       = 0x40
	RegAesKey4       = 0x41
	RegAesKey5       = 0x42
	RegAesKey6       = 0x43
	RegAesKey7       = 0x44
	RegAesKey8       = 0x45
	RegAesKey9       = 0x46
	RegAesKey10      = 0x47
	RegAesKey11      = 0x48
	RegAesKey12      = 0x49
	RegAesKey13      = 0x4A
	RegAesKey14      = 0x4B
	RegAesKey15      = 0x4C
	RegAesKey16      = 0x4D
)

const (
	RegTemp1 = 0x4E // Temperature Sensor control
	RegTemp2 = 0x4F // Temperature readout
)

const (
	RegTest     = 0x50 // Internal test registers
	RegTestLna  = 0x58 // Sensitivity boost
	RegTestPa1  = 0x5A // High Power PA settings
	RegTestPa2  = 0x5C // High Power PA settings
	RegTestDagc = 0x6F // Fading Margin Improvement
	RegTestAfc  = 0x71 // AFC offset for low modulation index AFC
)

const (
	SequencerOff    = 1 << 7
	ListenOn        = 1 << 6
	ListenAbort     = 1 << 5
	ModeShift       = 2
	ModeMask        = 7 << 2
	SleepMode       = 0 << 2
	StandbyMode     = 1 << 2
	FreqSynthMode   = 2 << 2
	TransmitterMode = 3 << 2
	ReceiverMode    = 4 << 2
)

const (
	PacketMode                   = 0 << 5
	ContinuousModeWithBitSync    = 2 << 5
	ContinuousModeWithoutBitSync = 3 << 5
	ModulationTypeMask           = 3 << 3
	ModulationTypeFSK            = 0 << 3
	ModulationTypeOOK            = 1 << 3
	ModulationShapingShift       = 0
)

const (
	RcCalStart = 1 << 7
	RcCalDone  = 1 << 6
)

const (
	ListenResolIdleShift = 6
	ListenResolRxShift   = 4
	ListenCriteria       = 1 << 3
	ListenEndShift       = 1
)

const (
	Pa0On            = 1 << 7
	Pa1On            = 1 << 6
	Pa2On            = 1 << 5
	OutputPowerShift = 0
)

const (
	OcpOn        = 1 << 4
	OcpTrimShift = 0
)

const (
	LnaZin              = 1 << 7
	LnaCurrentGainShift = 3
	LnaGainSelectShift  = 0
)

const (
	DccFreqShift  = 5
	DccFreqMask   = 7 << 5
	RxBwMantShift = 3
	RxBwMantMask  = 3 << 3
	RxBwMant16    = 0 << 3
	RxBwMant20    = 1 << 3
	RxBwMant24    = 2 << 3
	RxBwExpShift  = 0
	RxBwExpMask   = 7 << 0
)

const (
	OokThreshTypeShift     = 6
	OokPeakThreshStepShift = 3
	OokPeakThreshDecShift  = 0
)

const (
	FeiDone        = 1 << 6
	FeiStart       = 1 << 5
	AfcDone        = 1 << 4
	AfcAutoclearOn = 1 << 3
	AfcAutoOn      = 1 << 2
	AfcClear       = 1 << 1
	AfcStart       = 1 << 0
)

const (
	RssiDone  = 1 << 1
	RssiStart = 1 << 0
)

const (
	Dio0MappingShift = 6
	Dio1MappingShift = 4
	Dio2MappingShift = 2
	Dio3MappingShift = 0
)

const (
	Dio4MappingShift = 6
	Dio5MappingShift = 4
	ClkOutShift      = 0
)

const (
	ModeReady        = 1 << 7
	RxReady          = 1 << 6
	TxReady          = 1 << 5
	PllLock          = 1 << 4
	Rssi             = 1 << 3
	Timeout          = 1 << 2
	AutoMode         = 1 << 1
	SyncAddressMatch = 1 << 0
)

const (
	FifoFull     = 1 << 7
	FifoNotEmpty = 1 << 6
	FifoLevel    = 1 << 5
	FifoOverrun  = 1 << 4
	PacketSent   = 1 << 3
	PayloadReady = 1 << 2
	CrcOk        = 1 << 1
)

const (
	SyncOn            = 1 << 7
	FifoFillCondition = 1 << 6
	SyncSizeShift     = 3
	SyncTolShift      = 0
)

const (
	FixedLength           = 0 << 7
	VariableLength        = 1 << 7
	DcFreeShift           = 5
	CrcOn                 = 1 << 4
	CrcOff                = 0 << 4
	CrcAutoClearOff       = 1 << 3
	AddressFilteringShift = 1
)

const (
	EnterConditionShift        = 5
	EnterConditionNone         = 0 << 5
	EnterConditionFifoNotEmpty = 1 << 5
	EnterConditionFifoLevel    = 2 << 5
	EnterConditionCrcOk        = 3 << 5
	EnterConditionPayloadReady = 4 << 5
	EnterConditionSyncAddress  = 5 << 5
	EnterConditionPacketSent   = 6 << 5
	EnterConditionFifoEmpty    = 7 << 5
	ExitConditionShift         = 2
	ExitConditionNone          = 0 << 2
	ExitConditionFifoEmpty     = 1 << 2
	ExitConditionFifoLevel     = 2 << 2
	ExitConditionCrcOk         = 3 << 2
	ExitConditionPayloadReady  = 4 << 2
	ExitConditionSyncAddress   = 5 << 2
	ExitConditionPacketSent    = 6 << 2
	ExitConditionTimeout       = 7 << 2
	IntermediateModeShift      = 0
	IntermediateModeSleep      = 0 << 0
	IntermediateModeStandby    = 1 << 0
	IntermediateModeRx         = 2 << 0
	IntermediateModeTx         = 3 << 0
)

const (
	TxStartFifoNotEmpty = 1 << 7
	TxStartFifoLevel    = 0 << 7
	FifoThresholdShift  = 0
)

const (
	InterPacketRxDelayShift = 4
	RestartRx               = 1 << 2
	AutoRxRestartOn         = 1 << 1
	AutoRxRestartOff        = 0 << 1
	AesOn                   = 1 << 0
)

const (
	TempMeasStart   = 1 << 3
	TempMeasRunning = 1 << 2
)

const (
	AfcLowBetaOn = 1 << 5
)

const ConfigurationStart = RegOpMode

const (
	OokAverageThreshFiltShift = 6
)