rfm69

const (
	// RFM69 Registers
	RFM_REG_FIFO          register = 0x00 /* FIFO Read/Write Access */
	RFM_REG_OPMODE        register = 0x01 /* Operating modes of the transceiver */
	RFM_REG_DATAMODUL     register = 0x02 /* Data operation mode and modulation settings */
	RFM_REG_BITRATEMSB    register = 0x03 /* Bit Rate setting, most significant bits */
	RFM_REG_BITRATELSB    register = 0x04 /* Bit Rate setting, least significant bits */
	RFM_REG_FDEVMSB       register = 0x05 /* Frequency deviation setting, most significant bits */
	RFM_REG_FDEVLSB       register = 0x06 /* Frequency deviation setting, least significant bits */
	RFM_REG_FRFMSB        register = 0x07 /* RF Carrier Frequency, most significant bits */
	RFM_REG_FRFMID        register = 0x08 /* RF Carrier Frequency, intermediate bits */
	RFM_REG_FRFLSB        register = 0x09 /* RF Carrier Frequency, least significant bits */
	RFM_REG_OSC1          register = 0x0A /* RC Oscillators Settings */
	RFM_REG_AFCCTRL       register = 0x0B /* AFC Control in low modulation index situations */
	RFM_REG_LISTEN1       register = 0x0D /* Listen mode settings */
	RFM_REG_LISTEN2       register = 0x0E /* Listen mode idle duration */
	RFM_REG_LISTEN3       register = 0x0F /* Listen mode Rx duration */
	RFM_REG_VERSION       register = 0x10 /* Module version */
	RFM_REG_PALEVEL       register = 0x11 /* PA selection and output power control */
	RFM_REG_PARAMP        register = 0x12 /* Control of the PA ramp time in FSK mode */
	RFM_REG_OCP           register = 0x13 /* Over Current Protection control */
	RFM_REG_LNA           register = 0x18 /* LNA Settings */
	RFM_REG_RXBW          register = 0x19 /* Channel Filter BW Control */
	RFM_REG_AFCBW         register = 0x1A // Channel Filter BW control during the AFC routine
	RFM_REG_OOKPEAK       register = 0x1B // OOK demodulator selection and control in peak mode
	RFM_REG_OOKAVG        register = 0x1C // Average threshold control of the OOK demodulator
	RFM_REG_OOKFIX        register = 0x1D // Fixed threshold control of the OOK demodulator
	RFM_REG_AFCFEI        register = 0x1E // AFC and FEI control and status
	RFM_REG_AFCMSB        register = 0x1F // MSB of the frequency correction of the AFC
	RFM_REG_AFCLSB        register = 0x20 // LSB of the frequency correction of the AFC
	RFM_REG_FEIMSB        register = 0x21 // MSB of the calculated frequency error
	RFM_REG_FEILSB        register = 0x22 // LSB of the calculated frequency error
	RFM_REG_RSSICONFIG    register = 0x23 // RSSI-related settings
	RFM_REG_RSSIVALUE     register = 0x24 // RSSI value in dBm
	RFM_REG_DIOMAPPING1   register = 0x25 // Mapping of pins DIO0 to DIO3
	RFM_REG_DIOMAPPING2   register = 0x26 // Mapping of pins DIO4 and DIO5, ClkOut frequency
	RFM_REG_IRQ1          register = 0x27 // Status register: PLL Lock state, Timeout, RSSI > Threshold...
	RFM_REG_IRQ2          register = 0x28 // Status register: FIFO handling flags...
	RFM_REG_RSSITHRESH    register = 0x29 // RSSI Threshold control
	RFM_REG_RXTIMEOUT1    register = 0x2A // Timeout duration between Rx request and RSSI detection
	RFM_REG_RXTIMEOUT2    register = 0x2B // Timeout duration between RSSI detection and PayloadReady
	RFM_REG_PREAMBLEMSB   register = 0x2C // Preamble length, MSB
	RFM_REG_PREAMBLELSB   register = 0x2D // Preamble length, LSB
	RFM_REG_SYNCCONFIG    register = 0x2E // Sync Word Recognition control
	RFM_REG_SYNCVALUE1    register = 0x2F // Sync Word bytes, 1 through 8
	RFM_REG_SYNCVALUE2    register = 0x30
	RFM_REG_SYNCVALUE3    register = 0x31
	RFM_REG_SYNCVALUE4    register = 0x32
	RFM_REG_SYNCVALUE5    register = 0x33
	RFM_REG_SYNCVALUE6    register = 0x34
	RFM_REG_SYNCVALUE7    register = 0x35
	RFM_REG_SYNCVALUE8    register = 0x36
	RFM_REG_PACKETCONFIG1 register = 0x37 // Packet mode settings
	RFM_REG_PAYLOADLENGTH register = 0x38 // Payload length setting
	RFM_REG_NODEADRS      register = 0x39 // Node address
	RFM_REG_BROADCASTADRS register = 0x3A // Broadcast address
	RFM_REG_AUTOMODES     register = 0x3B // Auto modes settings
	RFM_REG_FIFOTHRESH    register = 0x3C // Fifo threshold, Tx start condition
	RFM_REG_PACKETCONFIG2 register = 0x3D // Packet mode settings
	RFM_REG_AESKEY1       register = 0x3E // 16 bytes of the cypher key
	RFM_REG_AESKEY2       register = 0x3F
	RFM_REG_AESKEY3       register = 0x40
	RFM_REG_AESKEY4       register = 0x41
	RFM_REG_AESKEY5       register = 0x42
	RFM_REG_AESKEY6       register = 0x43
	RFM_REG_AESKEY7       register = 0x44
	RFM_REG_AESKEY8       register = 0x45
	RFM_REG_AESKEY9       register = 0x46
	RFM_REG_AESKEY10      register = 0x47
	RFM_REG_AESKEY11      register = 0x48
	RFM_REG_AESKEY12      register = 0x49
	RFM_REG_AESKEY13      register = 0x4A
	RFM_REG_AESKEY14      register = 0x4B
	RFM_REG_AESKEY15      register = 0x4C
	RFM_REG_AESKEY16      register = 0x4D
	RFM_REG_TEMP1         register = 0x4E // Temperature Sensor control
	RFM_REG_TEMP2         register = 0x4F // Temperature readout
	RFM_REG_TEST          register = 0x50 // Internal test registers
	RFM_REG_TESTLNA       register = 0x58 // Sensitivity boost
	RFM_REG_TESTPA1       register = 0x5A // High Power PA settings
	RFM_REG_TESTPA2       register = 0x5C // High Power PA settings
	RFM_REG_TESTDAGC      register = 0x6F // Fading Margin Improvement
	RFM_REG_TESTAFC       register = 0x71 // AFC offset for low modulation index AFC
	RFM_REG_MAX           register = 0x7F // Last possible register value
	RFM_REG_WRITE         register = 0x80 // Write bit
)

const (
	SPI_MODE        = 0
	SPI_SPEEDHZ     = 115200     // Hz
	RFM_FXOSC_MHZ   = 32         // Crystal oscillator frequency MHz
	RFM_FSTEP_HZ    = 61         // Frequency synthesizer step
	RFM_BITRATE_MIN = 500        // bits per second (Hz)
	RFM_BITRATE_MAX = 300 * 1024 // bits per second (Hz)
)