commit/0b1548f3f0337b9ed312c29b37d98df5b63f855b/_si443x_8h_source.html

 #if !defined(_RADIOLIB_SI443X_H)

 #define _RADIOLIB_SI443X_H


 #include "../../TypeDef.h"


 #if !RADIOLIB_EXCLUDE_SI443X


 #include "../../Module.h"


 #include "../../protocols/PhysicalLayer/PhysicalLayer.h"


 // Si443x physical layer properties

 #define RADIOLIB_SI443X_FREQUENCY_STEP_SIZE                     156.25

 #define RADIOLIB_SI443X_MAX_PACKET_LENGTH                       64


 // Si443x series common registers

 #define RADIOLIB_SI443X_REG_DEVICE_TYPE                         0x00

 #define RADIOLIB_SI443X_REG_DEVICE_VERSION                      0x01

 #define RADIOLIB_SI443X_REG_DEVICE_STATUS                       0x02

 #define RADIOLIB_SI443X_REG_INTERRUPT_STATUS_1                  0x03

 #define RADIOLIB_SI443X_REG_INTERRUPT_STATUS_2                  0x04

 #define RADIOLIB_SI443X_REG_INTERRUPT_ENABLE_1                  0x05

 #define RADIOLIB_SI443X_REG_INTERRUPT_ENABLE_2                  0x06

 #define RADIOLIB_SI443X_REG_OP_FUNC_CONTROL_1                   0x07

 #define RADIOLIB_SI443X_REG_OP_FUNC_CONTROL_2                   0x08

 #define RADIOLIB_SI443X_REG_XOSC_LOAD_CAPACITANCE               0x09

 #define RADIOLIB_SI443X_REG_MCU_OUTPUT_CLOCK                    0x0A

 #define RADIOLIB_SI443X_REG_GPIO0_CONFIG                        0x0B

 #define RADIOLIB_SI443X_REG_GPIO1_CONFIG                        0x0C

 #define RADIOLIB_SI443X_REG_GPIO2_CONFIG                        0x0D

 #define RADIOLIB_SI443X_REG_IO_PORT_CONFIG                      0x0E

 #define RADIOLIB_SI443X_REG_ADC_CONFIG                          0x0F

 #define RADIOLIB_SI443X_REG_ADC_SENSOR_AMP_OFFSET               0x10

 #define RADIOLIB_SI443X_REG_ADC_VALUE                           0x11

 #define RADIOLIB_SI443X_REG_TEMP_SENSOR_CONTROL                 0x12

 #define RADIOLIB_SI443X_REG_TEMP_VALUE_OFFSET                   0x13

 #define RADIOLIB_SI443X_REG_WAKEUP_TIMER_PERIOD_1               0x14

 #define RADIOLIB_SI443X_REG_WAKEUP_TIMER_PERIOD_2               0x15

 #define RADIOLIB_SI443X_REG_WAKEUP_TIMER_PERIOD_3               0x16

 #define RADIOLIB_SI443X_REG_WAKEUP_TIMER_VALUE_1                0x17

 #define RADIOLIB_SI443X_REG_WAKEUP_TIMER_VALUE_2                0x18

 #define RADIOLIB_SI443X_REG_LOW_DC_MODE_DURATION                0x19

 #define RADIOLIB_SI443X_REG_LOW_BATT_DET_THRESHOLD              0x1A

 #define RADIOLIB_SI443X_REG_BATT_VOLTAGE_LEVEL                  0x1B

 #define RADIOLIB_SI443X_REG_IF_FILTER_BANDWIDTH                 0x1C

 #define RADIOLIB_SI443X_REG_AFC_LOOP_GEARSHIFT_OVERRIDE         0x1D

 #define RADIOLIB_SI443X_REG_AFC_TIMING_CONTROL                  0x1E

 #define RADIOLIB_SI443X_REG_CLOCK_REC_GEARSHIFT_OVERRIDE        0x1F

 #define RADIOLIB_SI443X_REG_CLOCK_REC_OVERSAMP_RATIO            0x20

 #define RADIOLIB_SI443X_REG_CLOCK_REC_OFFSET_2                  0x21

 #define RADIOLIB_SI443X_REG_CLOCK_REC_OFFSET_1                  0x22

 #define RADIOLIB_SI443X_REG_CLOCK_REC_OFFSET_0                  0x23

 #define RADIOLIB_SI443X_REG_CLOCK_REC_TIMING_LOOP_GAIN_1        0x24

 #define RADIOLIB_SI443X_REG_CLOCK_REC_TIMING_LOOP_GAIN_0        0x25

 #define RADIOLIB_SI443X_REG_RSSI                                0x26

 #define RADIOLIB_SI443X_REG_RSSI_CLEAR_CHANNEL_THRESHOLD        0x27

 #define RADIOLIB_SI443X_REG_ANTENNA_DIVERSITY_1                 0x28

 #define RADIOLIB_SI443X_REG_ANTENNA_DIVERSITY_2                 0x29

 #define RADIOLIB_SI443X_REG_AFC_LIMITER                         0x2A

 #define RADIOLIB_SI443X_REG_AFC_CORRECTION                      0x2B

 #define RADIOLIB_SI443X_REG_OOK_COUNTER_1                       0x2C

 #define RADIOLIB_SI443X_REG_OOK_COUNTER_2                       0x2D

 #define RADIOLIB_SI443X_REG_SLICER_PEAK_HOLD                    0x2E

 #define RADIOLIB_SI443X_REG_DATA_ACCESS_CONTROL                 0x30

 #define RADIOLIB_SI443X_REG_EZMAC_STATUS                        0x31

 #define RADIOLIB_SI443X_REG_HEADER_CONTROL_1                    0x32

 #define RADIOLIB_SI443X_REG_HEADER_CONTROL_2                    0x33

 #define RADIOLIB_SI443X_REG_PREAMBLE_LENGTH                     0x34

 #define RADIOLIB_SI443X_REG_PREAMBLE_DET_CONTROL                0x35

 #define RADIOLIB_SI443X_REG_SYNC_WORD_3                         0x36

 #define RADIOLIB_SI443X_REG_SYNC_WORD_2                         0x37

 #define RADIOLIB_SI443X_REG_SYNC_WORD_1                         0x38

 #define RADIOLIB_SI443X_REG_SYNC_WORD_0                         0x39

 #define RADIOLIB_SI443X_REG_TRANSMIT_HEADER_3                   0x3A

 #define RADIOLIB_SI443X_REG_TRANSMIT_HEADER_2                   0x3B

 #define RADIOLIB_SI443X_REG_TRANSMIT_HEADER_1                   0x3C

 #define RADIOLIB_SI443X_REG_TRANSMIT_HEADER_0                   0x3D

 #define RADIOLIB_SI443X_REG_TRANSMIT_PACKET_LENGTH              0x3E

 #define RADIOLIB_SI443X_REG_CHECK_HEADER_3                      0x3F

 #define RADIOLIB_SI443X_REG_CHECK_HEADER_2                      0x40

 #define RADIOLIB_SI443X_REG_CHECK_HEADER_1                      0x41

 #define RADIOLIB_SI443X_REG_CHECK_HEADER_0                      0x42

 #define RADIOLIB_SI443X_REG_HEADER_ENABLE_3                     0x43

 #define RADIOLIB_SI443X_REG_HEADER_ENABLE_2                     0x44

 #define RADIOLIB_SI443X_REG_HEADER_ENABLE_1                     0x45

 #define RADIOLIB_SI443X_REG_HEADER_ENABLE_0                     0x46

 #define RADIOLIB_SI443X_REG_RECEIVED_HEADER_3                   0x47

 #define RADIOLIB_SI443X_REG_RECEIVED_HEADER_2                   0x48

 #define RADIOLIB_SI443X_REG_RECEIVED_HEADER_1                   0x49

 #define RADIOLIB_SI443X_REG_RECEIVED_HEADER_0                   0x4A

 #define RADIOLIB_SI443X_REG_RECEIVED_PACKET_LENGTH              0x4B

 #define RADIOLIB_SI443X_REG_ADC8_CONTROL                        0x4F

 #define RADIOLIB_SI443X_REG_CHANNEL_FILTER_COEFF                0x60

 #define RADIOLIB_SI443X_REG_XOSC_CONTROL_TEST                   0x62

 #define RADIOLIB_SI443X_REG_AGC_OVERRIDE_1                      0x69

 #define RADIOLIB_SI443X_REG_TX_POWER                            0x6D

 #define RADIOLIB_SI443X_REG_TX_DATA_RATE_1                      0x6E

 #define RADIOLIB_SI443X_REG_TX_DATA_RATE_0                      0x6F

 #define RADIOLIB_SI443X_REG_MODULATION_MODE_CONTROL_1           0x70

 #define RADIOLIB_SI443X_REG_MODULATION_MODE_CONTROL_2           0x71

 #define RADIOLIB_SI443X_REG_FREQUENCY_DEVIATION                 0x72

 #define RADIOLIB_SI443X_REG_FREQUENCY_OFFSET_1                  0x73

 #define RADIOLIB_SI443X_REG_FREQUENCY_OFFSET_2                  0x74

 #define RADIOLIB_SI443X_REG_FREQUENCY_BAND_SELECT               0x75

 #define RADIOLIB_SI443X_REG_NOM_CARRIER_FREQUENCY_1             0x76

 #define RADIOLIB_SI443X_REG_NOM_CARRIER_FREQUENCY_0             0x77

 #define RADIOLIB_SI443X_REG_FREQUENCY_HOPPING_CHANNEL_SEL       0x79

 #define RADIOLIB_SI443X_REG_FREQUENCY_HOPPING_STEP_SIZE         0x7A

 #define RADIOLIB_SI443X_REG_TX_FIFO_CONTROL_1                   0x7C

 #define RADIOLIB_SI443X_REG_TX_FIFO_CONTROL_2                   0x7D

 #define RADIOLIB_SI443X_REG_RX_FIFO_CONTROL                     0x7E

 #define RADIOLIB_SI443X_REG_FIFO_ACCESS                         0x7F


 // RADIOLIB_SI443X_REG_DEVICE_TYPE                                            MSB   LSB   DESCRIPTION

 #define RADIOLIB_SI443X_DEVICE_TYPE                             0x08        //  4     0   device identification register


 // RADIOLIB_SI443X_REG_DEVICE_VERSION

 #define RADIOLIB_SI443X_DEVICE_VERSION                          0x06        //  4     0   chip version register


 // RADIOLIB_SI443X_REG_DEVICE_STATUS

 #define RADIOLIB_SI443X_RX_TX_FIFO_OVERFLOW                     0b10000000  //  7     7   Rx/Tx FIFO overflow flag

 #define RADIOLIB_SI443X_RX_TX_FIFO_UNDERFLOW                    0b01000000  //  6     6   Rx/Tx FIFO underflow flag

 #define RADIOLIB_SI443X_RX_FIFO_EMPTY                           0b00100000  //  5     5   Rx FIFO empty flag

 #define RADIOLIB_SI443X_HEADER_ERROR                            0b00010000  //  4     4   header error flag

 #define RADIOLIB_SI443X_FREQUENCY_ERROR                         0b00001000  //  3     3   frequency error flag (frequency outside allowed range)

 #define RADIOLIB_SI443X_TX                                      0b00000010  //  1     0   power state: Tx

 #define RADIOLIB_SI443X_RX                                      0b00000001  //  1     0                Rx

 #define RADIOLIB_SI443X_IDLE                                    0b00000000  //  1     0                idle


 // RADIOLIB_SI443X_REG_INTERRUPT_STATUS_1

 #define RADIOLIB_SI443X_FIFO_LEVEL_ERROR_INTERRUPT              0b10000000  //  7     7   Tx/Rx FIFO overflow or underflow

 #define RADIOLIB_SI443X_TX_FIFO_ALMOST_FULL_INTERRUPT           0b01000000  //  6     6   Tx FIFO almost full

 #define RADIOLIB_SI443X_TX_FIFO_ALMOST_EMPTY_INTERRUPT          0b00100000  //  5     5   Tx FIFO almost empty

 #define RADIOLIB_SI443X_RX_FIFO_ALMOST_FULL_INTERRUPT           0b00010000  //  4     4   Rx FIFO almost full

 #define RADIOLIB_SI443X_EXTERNAL_INTERRUPT                      0b00001000  //  3     3   external interrupt occurred on GPIOx

 #define RADIOLIB_SI443X_PACKET_SENT_INTERRUPT                   0b00000100  //  2     2   packet transmission done

 #define RADIOLIB_SI443X_VALID_PACKET_RECEIVED_INTERRUPT         0b00000010  //  1     1   valid packet has been received

 #define RADIOLIB_SI443X_CRC_ERROR_INTERRUPT                     0b00000001  //  0     0   CRC failed


 // RADIOLIB_SI443X_REG_INTERRUPT_STATUS_2

 #define RADIOLIB_SI443X_SYNC_WORD_DETECTED_INTERRUPT            0b10000000  //  7     7   sync word has been detected

 #define RADIOLIB_SI443X_VALID_RADIOLIB_PREAMBLE_DETECTED_INTERRUPT      0b01000000  //  6     6   valid preamble has been detected

 #define RADIOLIB_SI443X_INVALID_RADIOLIB_PREAMBLE_DETECTED_INTERRUPT    0b00100000  //  5     5   invalid preamble has been detected

 #define RADIOLIB_SI443X_RSSI_INTERRUPT                          0b00010000  //  4     4   RSSI exceeded programmed threshold

 #define RADIOLIB_SI443X_WAKEUP_TIMER_INTERRUPT                  0b00001000  //  3     3   wake-up timer expired

 #define RADIOLIB_SI443X_LOW_BATTERY_INTERRUPT                   0b00000100  //  2     2   low battery detected

 #define RADIOLIB_SI443X_CHIP_READY_INTERRUPT                    0b00000010  //  1     1   chip ready event detected

 #define RADIOLIB_SI443X_POWER_ON_RESET_INTERRUPT                0b00000001  //  0     0   power-on-reset detected


 // RADIOLIB_SI443X_REG_INTERRUPT_ENABLE_1

 #define RADIOLIB_SI443X_FIFO_LEVEL_ERROR_ENABLED                0b10000000  //  7     7   Tx/Rx FIFO overflow or underflow interrupt enabled

 #define RADIOLIB_SI443X_TX_FIFO_ALMOST_FULL_ENABLED             0b01000000  //  6     6   Tx FIFO almost full interrupt enabled

 #define RADIOLIB_SI443X_TX_FIFO_ALMOST_EMPTY_ENABLED            0b00100000  //  5     5   Tx FIFO almost empty interrupt enabled

 #define RADIOLIB_SI443X_RX_FIFO_ALMOST_FULL_ENABLED             0b00010000  //  4     4   Rx FIFO almost full interrupt enabled

 #define RADIOLIB_SI443X_EXTERNAL_ENABLED                        0b00001000  //  3     3   external interrupt interrupt enabled

 #define RADIOLIB_SI443X_PACKET_SENT_ENABLED                     0b00000100  //  2     2   packet transmission done interrupt enabled

 #define RADIOLIB_SI443X_VALID_PACKET_RECEIVED_ENABLED           0b00000010  //  1     1   valid packet received interrupt enabled

 #define RADIOLIB_SI443X_CRC_ERROR_ENABLED                       0b00000001  //  0     0   CRC failed interrupt enabled


 // RADIOLIB_SI443X_REG_INTERRUPT_ENABLE_2

 #define RADIOLIB_SI443X_SYNC_WORD_DETECTED_ENABLED              0b10000000  //  7     7   sync word interrupt enabled

 #define RADIOLIB_SI443X_VALID_RADIOLIB_PREAMBLE_DETECTED_ENABLED        0b01000000  //  6     6   valid preamble interrupt enabled

 #define RADIOLIB_SI443X_INVALID_RADIOLIB_PREAMBLE_DETECTED_ENABLED      0b00100000  //  5     5   invalid preamble interrupt enabled

 #define RADIOLIB_SI443X_RSSI_ENABLED                            0b00010000  //  4     4   RSSI exceeded programmed threshold interrupt enabled

 #define RADIOLIB_SI443X_WAKEUP_TIMER_ENABLED                    0b00001000  //  3     3   wake-up timer interrupt enabled

 #define RADIOLIB_SI443X_LOW_BATTERY_ENABLED                     0b00000100  //  2     2   low battery interrupt enabled

 #define RADIOLIB_SI443X_CHIP_READY_ENABLED                      0b00000010  //  1     1   chip ready event interrupt enabled

 #define RADIOLIB_SI443X_POWER_ON_RESET_ENABLED                  0b00000001  //  0     0   power-on-reset interrupt enabled


 // RADIOLIB_SI443X_REG_OP_FUNC_CONTROL_1

 #define RADIOLIB_SI443X_SOFTWARE_RESET                          0b10000000  //  7     7   reset all registers to default values

 #define RADIOLIB_SI443X_ENABLE_LOW_BATTERY_DETECT               0b01000000  //  6     6   enable low battery detection

 #define RADIOLIB_SI443X_ENABLE_WAKEUP_TIMER                     0b00100000  //  5     5   enable wakeup timer

 #define RADIOLIB_SI443X_32_KHZ_RC                               0b00000000  //  4     4   32.768 kHz source: RC oscillator (default)

 #define RADIOLIB_SI443X_32_KHZ_XOSC                             0b00010000  //  4     4                      crystal oscillator

 #define RADIOLIB_SI443X_TX_ON                                   0b00001000  //  3     3   Tx on in manual transmit mode

 #define RADIOLIB_SI443X_RX_ON                                   0b00000100  //  2     2   Rx on in manual receive mode

 #define RADIOLIB_SI443X_PLL_ON                                  0b00000010  //  1     1   PLL on (tune mode)

 #define RADIOLIB_SI443X_XTAL_OFF                                0b00000000  //  0     0   crystal oscillator: off (standby mode)

 #define RADIOLIB_SI443X_XTAL_ON                                 0b00000001  //  0     0                       on (ready mode)


 // RADIOLIB_SI443X_REG_OP_FUNC_CONTROL_2

 #define RADIOLIB_SI443X_ANT_DIV_TR_HL_IDLE_L                    0b00000000  //  7     5   GPIO1/2 states: Tx/Rx GPIO1 H, GPIO2 L; idle low (default)

 #define RADIOLIB_SI443X_ANT_DIV_TR_LH_IDLE_L                    0b00100000  //  7     5                   Tx/Rx GPIO1 L, GPIO2 H; idle low

 #define RADIOLIB_SI443X_ANT_DIV_TR_HL_IDLE_H                    0b01000000  //  7     5                   Tx/Rx GPIO1 H, GPIO2 L; idle high

 #define RADIOLIB_SI443X_ANT_DIV_TR_LH_IDLE_H                    0b01100000  //  7     5                   Tx/Rx GPIO1 L, GPIO2 H; idle high

 #define RADIOLIB_SI443X_ANT_DIV_TR_ALG_IDLE_L                   0b10000000  //  7     5                   Tx/Rx diversity algorithm; idle low

 #define RADIOLIB_SI443X_ANT_DIV_TR_ALG_IDLE_H                   0b10100000  //  7     5                   Tx/Rx diversity algorithm; idle high

 #define RADIOLIB_SI443X_ANT_DIV_TR_ALG_BEACON_IDLE_L            0b11000000  //  7     5                   Tx/Rx diversity algorithm (beacon); idle low

 #define RADIOLIB_SI443X_ANT_DIV_TR_ALG_BEACON_IDLE_H            0b11100000  //  7     5                   Tx/Rx diversity algorithm (beacon); idle high

 #define RADIOLIB_SI443X_RX_MULTIPACKET_OFF                      0b00000000  //  4     4   Rx multipacket: disabled (default)

 #define RADIOLIB_SI443X_RX_MULTIPACKET_ON                       0b00010000  //  4     4                   enabled

 #define RADIOLIB_SI443X_AUTO_TX_OFF                             0b00000000  //  3     3   Tx autotransmit on FIFO almost full: disabled (default)

 #define RADIOLIB_SI443X_AUTO_TX_ON                              0b00001000  //  3     3                                        enabled

 #define RADIOLIB_SI443X_LOW_DUTY_CYCLE_OFF                      0b00000000  //  2     2   low duty cycle mode: disabled (default)

 #define RADIOLIB_SI443X_LOW_DUTY_CYCLE_ON                       0b00000100  //  2     2                        enabled

 #define RADIOLIB_SI443X_RX_FIFO_RESET                           0b00000010  //  1     1   Rx FIFO reset/clear: reset (call first)

 #define RADIOLIB_SI443X_RX_FIFO_CLEAR                           0b00000000  //  1     1                        clear (call second)

 #define RADIOLIB_SI443X_TX_FIFO_RESET                           0b00000001  //  0     0   Tx FIFO reset/clear: reset (call first)

 #define RADIOLIB_SI443X_TX_FIFO_CLEAR                           0b00000000  //  0     0                        clear (call second)


 // RADIOLIB_SI443X_REG_XOSC_LOAD_CAPACITANCE

 #define RADIOLIB_SI443X_XTAL_SHIFT                              0b00000000  //  7     7   crystal capacitance configuration:

 #define RADIOLIB_SI443X_XTAL_LOAD_CAPACITANCE                   0b01111111  //  6     0     C_int = 1.8 pF + 0.085 pF * RADIOLIB_SI443X_XTAL_LOAD_CAPACITANCE + 3.7 pF * RADIOLIB_SI443X_XTAL_SHIFT


 // RADIOLIB_SI443X_REG_MCU_OUTPUT_CLOCK

 #define RADIOLIB_SI443X_CLOCK_TAIL_CYCLES_OFF                   0b00000000  //  5     4   additional clock cycles: none (default)

 #define RADIOLIB_SI443X_CLOCK_TAIL_CYCLES_128                   0b00010000  //  5     4                            128

 #define RADIOLIB_SI443X_CLOCK_TAIL_CYCLES_256                   0b00100000  //  5     4                            256

 #define RADIOLIB_SI443X_CLOCK_TAIL_CYCLES_512                   0b00110000  //  5     4                            512

 #define RADIOLIB_SI443X_LOW_FREQ_CLOCK_OFF                      0b00000000  //  3     3   32.768 kHz clock output: disabled (default)

 #define RADIOLIB_SI443X_LOW_FREQ_CLOCK_ON                       0b00001000  //  3     3                            enabled

 #define RADIOLIB_SI443X_MCU_CLOCK_30_MHZ                        0b00000000  //  2     0   GPIO clock output: 30 MHz

 #define RADIOLIB_SI443X_MCU_CLOCK_15_MHZ                        0b00000001  //  2     0                      15 MHz

 #define RADIOLIB_SI443X_MCU_CLOCK_10_MHZ                        0b00000010  //  2     0                      10 MHz

 #define RADIOLIB_SI443X_MCU_CLOCK_4_MHZ                         0b00000011  //  2     0                      4 MHz

 #define RADIOLIB_SI443X_MCU_CLOCK_3_MHZ                         0b00000100  //  2     0                      3 MHz

 #define RADIOLIB_SI443X_MCU_CLOCK_2_MHZ                         0b00000101  //  2     0                      2 MHz

 #define RADIOLIB_SI443X_MCU_CLOCK_1_MHZ                         0b00000110  //  2     0                      1 MHz (default)

 #define RADIOLIB_SI443X_MCU_CLOCK_32_KHZ                        0b00000111  //  2     0                      32.768 kHz


 // RADIOLIB_SI443X_REG_GPIO0_CONFIG + RADIOLIB_SI443X_REG_GPIO1_CONFIG + RADIOLIB_SI443X_REG_GPIO2_CONFIG

 #define RADIOLIB_SI443X_GPIOX_DRIVE_STRENGTH                    0b00000000  //  7     6   GPIOx drive strength (higher number = stronger drive)

 #define RADIOLIB_SI443X_GPIOX_PULLUP_OFF                        0b00000000  //  5     5   GPIOx internal 200k pullup: disabled (default)

 #define RADIOLIB_SI443X_GPIOX_PULLUP_ON                         0b00100000  //  5     5                               enabled

 #define RADIOLIB_SI443X_GPIO0_POWER_ON_RESET_OUT                0b00000000  //  4     0   GPIOx function: power-on-reset output (GPIO0 only, default)

 #define RADIOLIB_SI443X_GPIO1_POWER_ON_RESET_INV_OUT            0b00000000  //  4     0                   inverted power-on-reset output (GPIO1 only, default)

 #define RADIOLIB_SI443X_GPIO2_MCU_CLOCK_OUT                     0b00000000  //  4     0                   MCU clock output (GPIO2 only, default)

 #define RADIOLIB_SI443X_GPIOX_WAKEUP_OUT                        0b00000001  //  4     0                   wakeup timer expired output

 #define RADIOLIB_SI443X_GPIOX_LOW_BATTERY_OUT                   0b00000010  //  4     0                   low battery detect output

 #define RADIOLIB_SI443X_GPIOX_DIGITAL_OUT                       0b00000011  //  4     0                   direct digital output

 #define RADIOLIB_SI443X_GPIOX_EXT_INT_FALLING_IN                0b00000100  //  4     0                   external interrupt, falling edge

 #define RADIOLIB_SI443X_GPIOX_EXT_INT_RISING_IN                 0b00000101  //  4     0                   external interrupt, rising edge

 #define RADIOLIB_SI443X_GPIOX_EXT_INT_CHANGE_IN                 0b00000110  //  4     0                   external interrupt, state change

 #define RADIOLIB_SI443X_GPIOX_ADC_IN                            0b00000111  //  4     0                   ADC analog input

 #define RADIOLIB_SI443X_GPIOX_ANALOG_TEST_N_IN                  0b00001000  //  4     0                   analog test N input

 #define RADIOLIB_SI443X_GPIOX_ANALOG_TEST_P_IN                  0b00001001  //  4     0                   analog test P input

 #define RADIOLIB_SI443X_GPIOX_DIGITAL_IN                        0b00001010  //  4     0                   direct digital input

 #define RADIOLIB_SI443X_GPIOX_DIGITAL_TEST_OUT                  0b00001011  //  4     0                   digital test output

 #define RADIOLIB_SI443X_GPIOX_ANALOG_TEST_N_OUT                 0b00001100  //  4     0                   analog test N output

 #define RADIOLIB_SI443X_GPIOX_ANALOG_TEST_P_OUT                 0b00001101  //  4     0                   analog test P output

 #define RADIOLIB_SI443X_GPIOX_REFERENCE_VOLTAGE_OUT             0b00001110  //  4     0                   reference voltage output

 #define RADIOLIB_SI443X_GPIOX_TX_RX_DATA_CLK_OUT                0b00001111  //  4     0                   Tx/Rx clock output in direct mode

 #define RADIOLIB_SI443X_GPIOX_TX_DATA_IN                        0b00010000  //  4     0                   Tx data input direct mode

 #define RADIOLIB_SI443X_GPIOX_EXT_RETRANSMIT_REQUEST_IN         0b00010001  //  4     0                   external retransmission request input

 #define RADIOLIB_SI443X_GPIOX_TX_STATE_OUT                      0b00010010  //  4     0                   Tx state output

 #define RADIOLIB_SI443X_GPIOX_TX_FIFO_ALMOST_FULL_OUT           0b00010011  //  4     0                   Tx FIFO almost full output

 #define RADIOLIB_SI443X_GPIOX_RX_DATA_OUT                       0b00010100  //  4     0                   Rx data output

 #define RADIOLIB_SI443X_GPIOX_RX_STATE_OUT                      0b00010101  //  4     0                   Rx state output

 #define RADIOLIB_SI443X_GPIOX_RX_FIFO_ALMOST_FULL_OUT           0b00010110  //  4     0                   Rx FIFO almost full output

 #define RADIOLIB_SI443X_GPIOX_ANT_DIV_1_OUT                     0b00010111  //  4     0                   antenna diversity output 1

 #define RADIOLIB_SI443X_GPIOX_ANT_DIV_2_OUT                     0b00011000  //  4     0                   antenna diversity output 2

 #define RADIOLIB_SI443X_GPIOX_VALID_PREAMBLE_OUT                0b00011001  //  4     0                   valid preamble detected output

 #define RADIOLIB_SI443X_GPIOX_INVALID_PREAMBLE_OUT              0b00011010  //  4     0                   invalid preamble detected output

 #define RADIOLIB_SI443X_GPIOX_SYNC_WORD_DETECTED_OUT            0b00011011  //  4     0                   sync word detected output

 #define RADIOLIB_SI443X_GPIOX_CLEAR_CHANNEL_OUT                 0b00011100  //  4     0                   clear channel assessment output

 #define RADIOLIB_SI443X_GPIOX_VDD                               0b00011101  //  4     0                   VDD

 #define RADIOLIB_SI443X_GPIOX_GND                               0b00011110  //  4     0                   GND


 // RADIOLIB_SI443X_REG_IO_PORT_CONFIG

 #define RADIOLIB_SI443X_GPIO2_EXT_INT_STATE_MASK                0b01000000  //  6     6   external interrupt state mask for: GPIO2

 #define RADIOLIB_SI443X_GPIO1_EXT_INT_STATE_MASK                0b00100000  //  5     5                                      GPIO1

 #define RADIOLIB_SI443X_GPIO0_EXT_INT_STATE_MASK                0b00010000  //  4     4                                      GPIO0

 #define RADIOLIB_SI443X_IRQ_BY_SDO_OFF                          0b00000000  //  3     3   output IRQ state on SDO pin: disabled (default)

 #define RADIOLIB_SI443X_IRQ_BY_SDO_ON                           0b00001000  //  3     3                                enabled

 #define RADIOLIB_SI443X_GPIO2_DIGITAL_STATE_MASK                0b00000100  //  2     2   digital state mask for: GPIO2

 #define RADIOLIB_SI443X_GPIO1_DIGITAL_STATE_MASK                0b00000010  //  1     1                           GPIO1

 #define RADIOLIB_SI443X_GPIO0_DIGITAL_STATE_MASK                0b00000001  //  0     0                           GPIO0


 // RADIOLIB_SI443X_REG_ADC_CONFIG

 #define RADIOLIB_SI443X_ADC_START                               0b10000000  //  7     7   ADC control: start measurement

 #define RADIOLIB_SI443X_ADC_RUNNING                             0b00000000  //  7     7                measurement in progress

 #define RADIOLIB_SI443X_ADC_DONE                                0b10000000  //  7     7                done

 #define RADIOLIB_SI443X_ADC_SOURCE_TEMPERATURE                  0b00000000  //  6     4   ADC source: internal temperature sensor (default)

 #define RADIOLIB_SI443X_ADC_SOURCE_GPIO0_SINGLE                 0b00010000  //  6     4               single-ended on GPIO0

 #define RADIOLIB_SI443X_ADC_SOURCE_GPIO1_SINGLE                 0b00100000  //  6     4               single-ended on GPIO1

 #define RADIOLIB_SI443X_ADC_SOURCE_GPIO2_SINGLE                 0b00110000  //  6     4               single-ended on GPIO2

 #define RADIOLIB_SI443X_ADC_SOURCE_GPIO01_DIFF                  0b01000000  //  6     4               differential on GPIO0 (+) and GPIO1 (-)

 #define RADIOLIB_SI443X_ADC_SOURCE_GPIO12_DIFF                  0b01010000  //  6     4               differential on GPIO1 (+) and GPIO2 (-)

 #define RADIOLIB_SI443X_ADC_SOURCE_GPIO02_DIFF                  0b01100000  //  6     4               differential on GPIO0 (+) and GPIO2 (-)

 #define RADIOLIB_SI443X_ADC_SOURCE_GND                          0b01110000  //  6     4               GND

 #define RADIOLIB_SI443X_ADC_REFERNCE_BAND_GAP                   0b00000000  //  3     2   ADC reference: internal bandgap 1.2 V (default)

 #define RADIOLIB_SI443X_ADC_REFERNCE_VDD_3                      0b00001000  //  3     2                  VDD/3

 #define RADIOLIB_SI443X_ADC_REFERNCE_VDD_2                      0b00001100  //  3     2                  VDD/2

 #define RADIOLIB_SI443X_ADC_GAIN                                0b00000000  //  1     0   ADC amplifier gain


 // RADIOLIB_SI443X_REG_ADC_SENSOR_AMP_OFFSET

 #define RADIOLIB_SI443X_ADC_OFFSET                              0b00000000  //  3     0   ADC offset


 // RADIOLIB_SI443X_REG_TEMP_SENSOR_CONTROL

 #define RADIOLIB_SI443X_TEMP_SENSOR_RANGE_64_TO_64_C            0b00000000  //  7     6   temperature sensor range: -64 to 64 deg. C, 0.5 deg. C resolution (default)

 #define RADIOLIB_SI443X_TEMP_SENSOR_RANGE_64_TO_192_C           0b01000000  //  7     6                             -64 to 192 deg. C, 1.0 deg. C resolution

 #define RADIOLIB_SI443X_TEMP_SENSOR_RANGE_0_TO_128_C            0b11000000  //  7     6                             0 to 128 deg. C, 0.5 deg. C resolution

 #define RADIOLIB_SI443X_TEMP_SENSOR_RANGE_40_TO_216_F           0b10000000  //  7     6                             -40 to 216 deg. F, 1.0 deg. F resolution

 #define RADIOLIB_SI443X_TEMP_SENSOR_KELVIN_TO_CELSIUS_OFF       0b00000000  //  5     5   Kelvin to Celsius offset: disabled

 #define RADIOLIB_SI443X_TEMP_SENSOR_KELVIN_TO_CELSIUS_ON        0b00100000  //  5     5                             enabled (default)

 #define RADIOLIB_SI443X_TEMP_SENSOR_TRIM_OFF                    0b00000000  //  4     4   temperature sensor trim: disabled (default)

 #define RADIOLIB_SI443X_TEMP_SENSOR_TRIM_ON                     0b00010000  //  4     4                            enabled

 #define RADIOLIB_SI443X_TEMP_SENSOR_TRIM_VALUE                  0b00000000  //  3     0   temperature sensor trim value


 // RADIOLIB_SI443X_REG_WAKEUP_TIMER_PERIOD_1

 #define RADIOLIB_SI443X_WAKEUP_TIMER_EXPONENT                   0b00000011  //  4     0   wakeup timer value exponent


 // RADIOLIB_SI443X_REG_WAKEUP_TIMER_PERIOD_2 + RADIOLIB_SI443X_REG_WAKEUP_TIMER_PERIOD_3

 #define RADIOLIB_SI443X_WAKEUP_TIMER_MANTISSA_MSB               0x00        //  7     0   wakeup timer value:

 #define RADIOLIB_SI443X_WAKEUP_TIMER_MANTISSA_LSB               0x01        //  7     0     T = (4 * RADIOLIB_SI443X_WAKEUP_TIMER_MANTISSA * 2 ^ RADIOLIB_SI443X_WAKEUP_TIMER_EXPONENT) / 32.768 ms


 // RADIOLIB_SI443X_REG_LOW_DC_MODE_DURATION

 #define RADIOLIB_SI443X_LOW_DC_MODE_DURATION_MANTISSA           0x01        //  7     0   low duty cycle mode duration: T = (4 * RADIOLIB_SI443X_LOW_DC_MODE_DURATION_MANTISSA * 2 ^ RADIOLIB_SI443X_WAKEUP_TIMER_EXPONENT) / 32.768 ms


 // RADIOLIB_SI443X_REG_LOW_BATT_DET_THRESHOLD

 #define RADIOLIB_SI443X_LOW_BATT_DET_THRESHOLD                  0b00010100  //  4     0   low battery detection threshold: Vth = 1.7 + RADIOLIB_SI443X_LOW_BATT_DET_THRESHOLD * 0.05 V (defaults to 2.7 V)


 // RADIOLIB_SI443X_REG_IF_FILTER_BANDWIDTH

 #define RADIOLIB_SI443X_BYPASS_DEC_BY_3_OFF                     0b00000000  //  7     7   bypass decimate-by-3 stage: disabled (default)

 #define RADIOLIB_SI443X_BYPASS_DEC_BY_3_ON                      0b10000000  //  7     7                               enabled

 #define RADIOLIB_SI443X_IF_FILTER_DEC_RATE                      0b00000000  //  6     4   IF filter decimation rate

 #define RADIOLIB_SI443X_IF_FILTER_COEFF_SET                     0b00000001  //  3     0   IF filter coefficient set selection


 // RADIOLIB_SI443X_REG_AFC_LOOP_GEARSHIFT_OVERRIDE

 #define RADIOLIB_SI443X_AFC_WIDEBAND_OFF                        0b00000000  //  7     7   AFC wideband: disabled (default)

 #define RADIOLIB_SI443X_AFC_WIDEBAND_ON                         0b10000000  //  7     7                 enabled

 #define RADIOLIB_SI443X_AFC_OFF                                 0b00000000  //  6     6   AFC: disabled

 #define RADIOLIB_SI443X_AFC_ON                                  0b01000000  //  6     6        enabled (default)

 #define RADIOLIB_SI443X_AFC_HIGH_GEAR_SETTING                   0b00000000  //  5     3   AFC high gear setting

 #define RADIOLIB_SI443X_SECOND_PHASE_BIAS_0_DB                  0b00000100  //  2     2   second phase antenna selection bias: 0 dB (default)

 #define RADIOLIB_SI443X_SECOND_PHASE_BIAS_1_5_DB                0b00000000  //  2     2                                        1.5 dB

 #define RADIOLIB_SI443X_MOVING_AVERAGE_TAP_8                    0b00000010  //  1     1   moving average filter tap length: 8*Tb

 #define RADIOLIB_SI443X_MOVING_AVERAGE_TAP_4                    0b00000000  //  1     1                                     4*Tb after first preamble (default)

 #define RADIOLIB_SI443X_ZERO_PHASE_RESET_5                      0b00000000  //  0     0   reset preamble detector after: 5 zero phases (default)

 #define RADIOLIB_SI443X_ZERO_PHASE_RESET_2                      0b00000001  //  0     0                                  3 zero phases


 // RADIOLIB_SI443X_REG_AFC_TIMING_CONTROL

 #define RADIOLIB_SI443X_SW_ANT_TIMER                            0b00000000  //  7     6   number of periods to wait for RSSI to stabilize during antenna switching

 #define RADIOLIB_SI443X_SHORT_WAIT                              0b00001000  //  5     3   period to wait after AFC correction

 #define RADIOLIB_SI443X_ANTENNA_SWITCH_WAIT                     0b00000010  //  2     0   antenna switching wait time


 // RADIOLIB_SI443X_REG_CLOCK_REC_GEARSHIFT_OVERRIDE

 #define RADIOLIB_SI443X_CLOCK_RECOVER_FAST_GEARSHIFT            0b00000000  //  5     3   clock recovery fast gearshift value

 #define RADIOLIB_SI443X_CLOCK_RECOVER_SLOW_GEARSHIFT            0b00000011  //  2     0   clock recovery slow gearshift value


 // RADIOLIB_SI443X_REG_CLOCK_REC_OVERSAMP_RATIO

 #define RADIOLIB_SI443X_CLOCK_REC_OVERSAMP_RATIO_LSB            0b01100100  //  7     0   oversampling rate LSB, defaults to 12.5 clock cycles per bit


 // RADIOLIB_SI443X_REG_CLOCK_REC_OFFSET_2

 #define RADIOLIB_SI443X_CLOCK_REC_OVERSAMP_RATIO_MSB            0b00000000  //  7     5   oversampling rate MSB, defaults to 12.5 clock cycles per bit

 #define RADIOLIB_SI443X_SECOND_PHASE_SKIP_THRESHOLD             0b00000000  //  4     4   skip seconds phase antenna diversity threshold

 #define RADIOLIB_SI443X_NCO_OFFSET_MSB                          0b00000001  //  3     0   NCO offset MSB


 // RADIOLIB_SI443X_REG_CLOCK_REC_OFFSET_1

 #define RADIOLIB_SI443X_NCO_OFFSET_MID                          0b01000111  //  7     0   NCO offset MID


 // RADIOLIB_SI443X_REG_CLOCK_REC_OFFSET_0

 #define RADIOLIB_SI443X_NCO_OFFSET_LSB                          0b10101110  //  7     0   NCO offset LSB


 // RADIOLIB_SI443X_REG_CLOCK_REC_TIMING_LOOP_GAIN_1

 #define RADIOLIB_SI443X_RX_COMPENSATION_OFF                     0b00000000  //  4     4   Rx compensation for high data rate: disabled (default)

 #define RADIOLIB_SI443X_RX_COMPENSATION_ON                      0b00010000  //  4     4                                       enabled

 #define RADIOLIB_SI443X_CLOCK_REC_GAIN_DOUBLE_OFF               0b00000000  //  3     3   clock recovery gain doubling: disabled (default)

 #define RADIOLIB_SI443X_CLOCK_REC_GAIN_DOUBLE_ON                0b00001000  //  3     3                                 enabled

 #define RADIOLIB_SI443X_CLOCK_REC_LOOP_GAIN_MSB                 0b00000010  //  2     0   clock recovery timing loop gain MSB


 // RADIOLIB_SI443X_REG_CLOCK_REC_TIMING_LOOP_GAIN_0

 #define RADIOLIB_SI443X_CLOCK_REC_LOOP_GAIN_LSB                 0b10001111  //  7     0   clock recovery timing loop gain LSB


 // RADIOLIB_SI443X_REG_RSSI_CLEAR_CHANNEL_THRESHOLD

 #define RADIOLIB_SI443X_RSSI_CLEAR_CHANNEL_THRESHOLD            0b00011110  //  7     0   RSSI clear channel interrupt threshold


 // RADIOLIB_SI443X_REG_AFC_LIMITER

 #define RADIOLIB_SI443X_AFC_LIMITER                             0x00        //  7     0   AFC limiter value


 // RADIOLIB_SI443X_REG_OOK_COUNTER_1

 #define RADIOLIB_SI443X_OOK_FREEZE_OFF                          0b00000000  //  5     5   OOK moving average detector freeze: disabled (default)

 #define RADIOLIB_SI443X_OOK_FREEZE_ON                           0b00100000  //  5     5                                       enabled

 #define RADIOLIB_SI443X_PEAK_DETECTOR_OFF                       0b00000000  //  4     4   peak detector: disabled

 #define RADIOLIB_SI443X_PEAK_DETECTOR_ON                        0b00010000  //  4     4                  enabled (default)

 #define RADIOLIB_SI443X_OOK_MOVING_AVERAGE_OFF                  0b00000000  //  3     3   OOK moving average: disabled

 #define RADIOLIB_SI443X_OOK_MOVING_AVERAGE_ON                   0b00001000  //  3     3                       enabled (default)

 #define RADIOLIB_SI443X_OOK_COUNTER_MSB                         0b00000000  //  2     0   OOK counter MSB


 // RADIOLIB_SI443X_REG_OOK_COUNTER_2

 #define RADIOLIB_SI443X_OOK_COUNTER_LSB                         0b10111100  //  7     0   OOK counter LSB


 // RADIOLIB_SI443X_REG_SLICER_PEAK_HOLD

 #define RADIOLIB_SI443X_PEAK_DETECTOR_ATTACK                    0b00010000  //  6     4   OOK peak detector attach time

 #define RADIOLIB_SI443X_PEAK_DETECTOR_DECAY                     0b00001100  //  3     0   OOK peak detector decay time


 // RADIOLIB_SI443X_REG_DATA_ACCESS_CONTROL

 #define RADIOLIB_SI443X_PACKET_RX_HANDLING_OFF                  0b00000000  //  7     7   packet Rx handling: disabled

 #define RADIOLIB_SI443X_PACKET_RX_HANDLING_ON                   0b10000000  //  7     7                       enabled (default)

 #define RADIOLIB_SI443X_LSB_FIRST_OFF                           0b00000000  //  6     6   LSB first transmission: disabled (default)

 #define RADIOLIB_SI443X_LSB_FIRST_ON                            0b01000000  //  6     6                           enabled

 #define RADIOLIB_SI443X_CRC_DATA_ONLY_OFF                       0b00000000  //  5     5   CRC calculated only from data fields: disabled (default)

 #define RADIOLIB_SI443X_CRC_DATA_ONLY_ON                        0b00100000  //  5     5                                         enabled

 #define RADIOLIB_SI443X_SKIP_SECOND_PHASE_PREAMBLE_DET_OFF      0b00000000  //  4     4   skip second phase of preamble detection: disabled (default)

 #define RADIOLIB_SI443X_SKIP_SECOND_PHASE_PREAMBLE_DET_ON       0b00010000  //  4     4                                            enabled

 #define RADIOLIB_SI443X_PACKET_TX_HANDLING_OFF                  0b00000000  //  3     3   packet Tx handling: disabled

 #define RADIOLIB_SI443X_PACKET_TX_HANDLING_ON                   0b00001000  //  3     3                       enabled (default)

 #define RADIOLIB_SI443X_CRC_OFF                                 0b00000000  //  2     2   CRC: disabled

 #define RADIOLIB_SI443X_CRC_ON                                  0b00000100  //  2     2        enabled (default)

 #define RADIOLIB_SI443X_CRC_CCITT                               0b00000000  //  1     0   CRC type: CCITT

 #define RADIOLIB_SI443X_CRC_IBM_CRC16                           0b00000001  //  1     0             IBM CRC-16 (default)

 #define RADIOLIB_SI443X_CRC_IEC16                               0b00000010  //  1     0             IEC-16

 #define RADIOLIB_SI443X_CRC_BIACHEVA                            0b00000011  //  1     0             Biacheva


 // RADIOLIB_SI443X_REG_EZMAC_STATUS

 #define RADIOLIB_SI443X_CRC_ALL_ONE                             0b01000000  //  6     6   last received CRC was all ones

 #define RADIOLIB_SI443X_PACKET_SEARCHING                        0b00100000  //  5     5   radio is searching for a valid packet

 #define RADIOLIB_SI443X_PACKET_RECEIVING                        0b00010000  //  4     4   radio is currently receiving packet

 #define RADIOLIB_SI443X_VALID_PACKET_RECEIVED                   0b00001000  //  3     3   valid packet was received

 #define RADIOLIB_SI443X_CRC_ERROR                               0b00000100  //  2     2   CRC check failed

 #define RADIOLIB_SI443X_PACKET_TRANSMITTING                     0b00000010  //  1     1   radio is currently transmitting packet

 #define RADIOLIB_SI443X_PACKET_SENT                             0b00000001  //  0     0   packet sent


 // RADIOLIB_SI443X_REG_HEADER_CONTROL_1

 #define RADIOLIB_SI443X_BROADCAST_ADDR_CHECK_NONE               0b00000000  //  7     4   broadcast address check: none (default)

 #define RADIOLIB_SI443X_BROADCAST_ADDR_CHECK_BYTE0              0b00010000  //  7     4                            on byte 0

 #define RADIOLIB_SI443X_BROADCAST_ADDR_CHECK_BYTE1              0b00100000  //  7     4                            on byte 1

 #define RADIOLIB_SI443X_BROADCAST_ADDR_CHECK_BYTE2              0b01000000  //  7     4                            on byte 2

 #define RADIOLIB_SI443X_BROADCAST_ADDR_CHECK_BYTE3              0b10000000  //  7     4                            on byte 3

 #define RADIOLIB_SI443X_RECEIVED_HEADER_CHECK_NONE              0b00000000  //  3     0   received header check: none

 #define RADIOLIB_SI443X_RECEIVED_HEADER_CHECK_BYTE0             0b00000001  //  3     0                          on byte 0

 #define RADIOLIB_SI443X_RECEIVED_HEADER_CHECK_BYTE1             0b00000010  //  3     0                          on byte 1

 #define RADIOLIB_SI443X_RECEIVED_HEADER_CHECK_BYTE2             0b00000100  //  3     0                          on byte 2 (default)

 #define RADIOLIB_SI443X_RECEIVED_HEADER_CHECK_BYTE3             0b00001000  //  3     0                          on byte 3 (default)


 // RADIOLIB_SI443X_REG_HEADER_CONTROL_2

 #define RADIOLIB_SI443X_SYNC_WORD_TIMEOUT_OFF                   0b00000000  //  7     7   ignore timeout period when searching for sync word: disabled (default)

 #define RADIOLIB_SI443X_SYNC_WORD_TIMEOUT_ON                    0b10000000  //  7     7                                                       enabled

 #define RADIOLIB_SI443X_HEADER_LENGTH_HEADER_NONE               0b00000000  //  6     4   header length: none

 #define RADIOLIB_SI443X_HEADER_LENGTH_HEADER_3                  0b00010000  //  6     4                  header 3

 #define RADIOLIB_SI443X_HEADER_LENGTH_HEADER_32                 0b00100000  //  6     4                  header 3 and 2

 #define RADIOLIB_SI443X_HEADER_LENGTH_HEADER_321                0b00110000  //  6     4                  header 3, 2 and 1 (default)

 #define RADIOLIB_SI443X_HEADER_LENGTH_HEADER_3210               0b01000000  //  6     4                  header 3, 2, 1, and 0

 #define RADIOLIB_SI443X_FIXED_PACKET_LENGTH_OFF                 0b00000000  //  3     3   fixed packet length mode: disabled (default)

 #define RADIOLIB_SI443X_FIXED_PACKET_LENGTH_ON                  0b00001000  //  3     3                             enabled

 #define RADIOLIB_SI443X_SYNC_LENGTH_SYNC_3                      0b00000000  //  2     1   sync word length: sync 3

 #define RADIOLIB_SI443X_SYNC_LENGTH_SYNC_32                     0b00000010  //  2     1                     sync 3 and 2 (default)

 #define RADIOLIB_SI443X_SYNC_LENGTH_SYNC_321                    0b00000100  //  2     1                     sync 3, 2 and 1

 #define RADIOLIB_SI443X_SYNC_LENGTH_SYNC_3210                   0b00000110  //  2     1                     sync 3, 2, 1 and 0

 #define RADIOLIB_SI443X_PREAMBLE_LENGTH_MSB                     0b00000000  //  0     0   preamble length MSB


 // RADIOLIB_SI443X_REG_PREAMBLE_LENGTH

 #define RADIOLIB_SI443X_PREAMBLE_LENGTH_LSB                     0b00001000  //  0     0   preamble length LSB, defaults to 32 bits


 // RADIOLIB_SI443X_REG_PREAMBLE_DET_CONTROL

 #define RADIOLIB_SI443X_PREAMBLE_DET_THRESHOLD                  0b00101000  //  7     3   number of 4-bit nibbles in valid preamble, defaults to 20 bits

 #define RADIOLIB_SI443X_RSSI_OFFSET                             0b00000010  //  2     0   RSSI calculation offset, defaults to +8 dB


 // RADIOLIB_SI443X_REG_SYNC_WORD_3 - RADIOLIB_SI443X_REG_SYNC_WORD_0

 #define RADIOLIB_SI443X_SYNC_WORD_3                             0x2D        //  7     0   sync word: 4th byte (MSB)

 #define RADIOLIB_SI443X_SYNC_WORD_2                             0xD4        //  7     0              3rd byte

 #define RADIOLIB_SI443X_SYNC_WORD_1                             0x00        //  7     0              2nd byte

 #define RADIOLIB_SI443X_SYNC_WORD_0                             0x00        //  7     0              1st byte (LSB)


 // RADIOLIB_SI443X_REG_CHANNEL_FILTER_COEFF

 #define RADIOLIB_SI443X_INVALID_PREAMBLE_THRESHOLD              0b00000000  //  7     4   invalid preamble threshold in nibbles


 // RADIOLIB_SI443X_REG_XOSC_CONTROL_TEST

 #define RADIOLIB_SI443X_STATE_LOW_POWER                         0b00000000  //  7     5   chip power state: low power

 #define RADIOLIB_SI443X_STATE_READY                             0b00100000  //  7     5                     ready

 #define RADIOLIB_SI443X_STATE_TUNE                              0b01100000  //  7     5                     tune

 #define RADIOLIB_SI443X_STATE_TX                                0b01000000  //  7     5                     Tx

 #define RADIOLIB_SI443X_STATE_RX                                0b11100000  //  7     5                     Rx


 // RADIOLIB_SI443X_REG_AGC_OVERRIDE_1

 #define RADIOLIB_SI443X_AGC_GAIN_INCREASE_OFF                   0b00000000  //  6     6   AGC gain increase override: disabled (default)

 #define RADIOLIB_SI443X_AGC_GAIN_INCREASE_ON                    0b01000000  //  6     6                               enabled

 #define RADIOLIB_SI443X_AGC_OFF                                 0b00000000  //  5     5   AGC loop: disabled

 #define RADIOLIB_SI443X_AGC_ON                                  0b00100000  //  5     5             enabled (default)

 #define RADIOLIB_SI443X_LNA_GAIN_MIN                            0b00000000  //  4     4   LNA gain select: 5 dB (default)

 #define RADIOLIB_SI443X_LNA_GAIN_MAX                            0b00010000  //  4     4                    25 dB

 #define RADIOLIB_SI443X_PGA_GAIN_OVERRIDE                       0b00000000  //  3     0   PGA gain override, gain = RADIOLIB_SI443X_PGA_GAIN_OVERRIDE * 3 dB


 // RADIOLIB_SI443X_REG_TX_POWER

 #define RADIOLIB_SI443X_LNA_SWITCH_OFF                          0b00000000  //  3     3   LNA switch control: disabled

 #define RADIOLIB_SI443X_LNA_SWITCH_ON                           0b00001000  //  3     3                       enabled (default)

 #define RADIOLIB_SI443X_OUTPUT_POWER                            0b00000000  //  2     0   output power in 3 dB steps, 0 is chip min, 7 is chip max


 // RADIOLIB_SI443X_REG_TX_DATA_RATE_1 + RADIOLIB_SI443X_REG_TX_DATA_RATE_0

 #define RADIOLIB_SI443X_DATA_RATE_MSB                           0x0A        //  7     0   data rate: DR = 10^6 * (RADIOLIB_SI443X_DATA_RATE / 2^16) in high data rate mode or

 #define RADIOLIB_SI443X_DATA_RATE_LSB                           0x3D        //  7     0              DR = 10^6 * (RADIOLIB_SI443X_DATA_RATE / 2^21) in low data rate mode (defaults to 40 kbps)


 // RADIOLIB_SI443X_REG_MODULATION_MODE_CONTROL_1

 #define RADIOLIB_SI443X_HIGH_DATA_RATE_MODE                     0b00000000  //  5     5   data rate: above 30 kbps (default)

 #define RADIOLIB_SI443X_LOW_DATA_RATE_MODE                      0b00100000  //  5     5              below 30 kbps

 #define RADIOLIB_SI443X_PACKET_HANDLER_POWER_DOWN_OFF           0b00000000  //  4     4   power off packet handler in low power mode: disabled (default)

 #define RADIOLIB_SI443X_PACKET_HANDLER_POWER_DOWN_ON            0b00010000  //  4     4                                               enabled

 #define RADIOLIB_SI443X_MANCHESTER_PREAMBLE_POL_LOW             0b00000000  //  3     3   preamble polarity in Manchester mode: low

 #define RADIOLIB_SI443X_MANCHESTER_PREAMBLE_POL_HIGH            0b00001000  //  3     3                                         high (default)

 #define RADIOLIB_SI443X_MANCHESTER_INVERTED_OFF                 0b00000000  //  2     2   inverted Manchester encoding: disabled

 #define RADIOLIB_SI443X_MANCHESTER_INVERTED_ON                  0b00000100  //  2     2                                 enabled (default)

 #define RADIOLIB_SI443X_MANCHESTER_OFF                          0b00000000  //  1     1   Manchester encoding: disabled (default)

 #define RADIOLIB_SI443X_MANCHESTER_ON                           0b00000010  //  1     1                        enabled

 #define RADIOLIB_SI443X_WHITENING_OFF                           0b00000000  //  0     0   data whitening: disabled (default)

 #define RADIOLIB_SI443X_WHITENING_ON                            0b00000001  //  0     0                   enabled


 // RADIOLIB_SI443X_REG_MODULATION_MODE_CONTROL_2

 #define RADIOLIB_SI443X_TX_DATA_CLOCK_NONE                      0b00000000  //  7     6   Tx data clock: disabled (default)

 #define RADIOLIB_SI443X_TX_DATA_CLOCK_GPIO                      0b01000000  //  7     6                  GPIO pin

 #define RADIOLIB_SI443X_TX_DATA_CLOCK_SDI                       0b10000000  //  7     6                  SDI pin

 #define RADIOLIB_SI443X_TX_DATA_CLOCK_NIRQ                      0b11000000  //  7     6                  nIRQ pin

 #define RADIOLIB_SI443X_TX_DATA_SOURCE_GPIO                     0b00000000  //  5     4   Tx data source in direct mode: GPIO pin (default)

 #define RADIOLIB_SI443X_TX_DATA_SOURCE_SDI                      0b00010000  //  5     4                                  SDI pin

 #define RADIOLIB_SI443X_TX_DATA_SOURCE_FIFO                     0b00100000  //  5     4                                  FIFO

 #define RADIOLIB_SI443X_TX_DATA_SOURCE_PN9                      0b00110000  //  5     4                                  PN9 internal

 #define RADIOLIB_SI443X_TX_RX_INVERTED_OFF                      0b00000000  //  3     3   Tx/Rx data inverted: disabled (default)

 #define RADIOLIB_SI443X_TX_RX_INVERTED_ON                       0b00001000  //  3     3                        enabled

 #define RADIOLIB_SI443X_FREQUENCY_DEVIATION_MSB                 0b00000000  //  2     2   frequency deviation MSB

 #define RADIOLIB_SI443X_MODULATION_NONE                         0b00000000  //  1     0   modulation type: unmodulated carrier (default)

 #define RADIOLIB_SI443X_MODULATION_OOK                          0b00000001  //  1     0                    OOK

 #define RADIOLIB_SI443X_MODULATION_FSK                          0b00000010  //  1     0                    FSK

 #define RADIOLIB_SI443X_MODULATION_GFSK                         0b00000011  //  1     0                    GFSK


 // RADIOLIB_SI443X_REG_FREQUENCY_DEVIATION

 #define RADIOLIB_SI443X_FREQUENCY_DEVIATION_LSB                 0b00100000  //  7     0   frequency deviation LSB, Fd = 625 Hz * RADIOLIB_SI443X_FREQUENCY_DEVIATION, defaults to 20 kHz


 // RADIOLIB_SI443X_REG_FREQUENCY_OFFSET_1 + RADIOLIB_SI443X_REG_FREQUENCY_OFFSET_2

 #define RADIOLIB_SI443X_FREQUENCY_OFFSET_MSB                    0x00        //  7     0   frequency offset:

 #define RADIOLIB_SI443X_FREQUENCY_OFFSET_LSB                    0x00        //  1     0     Foff = 156.25 Hz * (RADIOLIB_SI443X_BAND_SELECT + 1) * RADIOLIB_SI443X_FREQUENCY_OFFSET, defaults to 156.25 Hz


 // RADIOLIB_SI443X_REG_FREQUENCY_BAND_SELECT

 #define RADIOLIB_SI443X_SIDE_BAND_SELECT_LOW                    0b00000000  //  6     6   Rx LO tuning: below channel frequency (default)

 #define RADIOLIB_SI443X_SIDE_BAND_SELECT_HIGH                   0b01000000  //  6     6                 above channel frequency

 #define RADIOLIB_SI443X_BAND_SELECT_LOW                         0b00000000  //  5     5   band select: low, 240 - 479.9 MHz

 #define RADIOLIB_SI443X_BAND_SELECT_HIGH                        0b00100000  //  5     5                high, 480 - 960 MHz (default)

 #define RADIOLIB_SI443X_FREQUENCY_BAND_SELECT                   0b00010101  //  4     0   frequency band select


 // RADIOLIB_SI443X_REG_NOM_CARRIER_FREQUENCY_1 + RADIOLIB_SI443X_REG_NOM_CARRIER_FREQUENCY_0

 #define RADIOLIB_SI443X_NOM_CARRIER_FREQUENCY_MSB               0b10111011  //  7     0   nominal carrier frequency:

 #define RADIOLIB_SI443X_NOM_CARRIER_FREQUENCY_LSB               0b10000000  //  7     0     Fc = (RADIOLIB_SI443X_BAND_SELECT + 1)*10*(RADIOLIB_SI443X_FREQUENCY_BAND_SELECT + 24) + (RADIOLIB_SI443X_NOM_CARRIER_FREQUENCY - RADIOLIB_SI443X_FREQUENCY_OFFSET)/6400 [MHz]


 // RADIOLIB_SI443X_REG_FREQUENCY_HOPPING_CHANNEL_SEL

 #define RADIOLIB_SI443X_FREQUENCY_HOPPING_CHANNEL               0x00        //  7     0  frequency hopping channel number


 // RADIOLIB_SI443X_REG_FREQUENCY_HOPPING_STEP_SIZE

 #define RADIOLIB_SI443X_FREQUENCY_HOPPING_STEP_SIZE             0x00        //  7     0  frequency hopping step size


 // RADIOLIB_SI443X_REG_TX_FIFO_CONTROL_1

 #define RADIOLIB_SI443X_TX_FIFO_ALMOST_FULL_THRESHOLD           0x37        //  5     0  Tx FIFO almost full threshold


 // RADIOLIB_SI443X_REG_TX_FIFO_CONTROL_2

 #define RADIOLIB_SI443X_TX_FIFO_ALMOST_EMPTY_THRESHOLD          0x04        //  5     0  Tx FIFO almost full threshold


 // RADIOLIB_SI443X_REG_RX_FIFO_CONTROL

 #define RADIOLIB_SI443X_RX_FIFO_ALMOST_FULL_THRESHOLD           0x37        //  5     0  Rx FIFO almost full threshold


 class Si443x: public PhysicalLayer {

   public:

     // introduce PhysicalLayer overloads

     using PhysicalLayer::transmit;

     using PhysicalLayer::receive;

     using PhysicalLayer::startTransmit;

     using PhysicalLayer::readData;


     // constructor


     Si443x(Module* mod);


     // basic methods


     int16_t begin(float br, float freqDev, float rxBw, uint8_t preambleLen);


     void reset();


     int16_t transmit(uint8_t* data, size_t len, uint8_t addr = 0) override;


     int16_t receive(uint8_t* data, size_t len) override;


     int16_t sleep();


     int16_t standby() override;


     int16_t standby(uint8_t mode) override;


     int16_t transmitDirect(uint32_t frf = 0) override;


     int16_t receiveDirect() override;


     int16_t packetMode();


     // interrupt methods


     void setIrqAction(void (*func)(void));


     void clearIrqAction();


     void setPacketReceivedAction(void (*func)(void));


     void clearPacketReceivedAction();


     void setPacketSentAction(void (*func)(void));


     void clearPacketSentAction();


     int16_t startTransmit(uint8_t* data, size_t len, uint8_t addr = 0) override;


     int16_t finishTransmit() override;


     int16_t startReceive();


     int16_t startReceive(uint32_t timeout, uint16_t irqFlags, uint16_t irqMask, size_t len);


     int16_t readData(uint8_t* data, size_t len) override;


     // configuration methods


     int16_t setBitRate(float br);


     int16_t setFrequencyDeviation(float freqDev) override;


     int16_t setRxBandwidth(float rxBw);


     int16_t setSyncWord(uint8_t* syncWord, size_t len);


     int16_t setPreambleLength(uint8_t preambleLen);


     size_t getPacketLength(bool update = true) override;


     int16_t setEncoding(uint8_t encoding) override;


     int16_t setDataShaping(uint8_t sh) override;


     void setRfSwitchPins(uint32_t rxEn, uint32_t txEn);


     void setRfSwitchTable(const uint32_t (&pins)[Module::RFSWITCH_MAX_PINS], const Module::RfSwitchMode_t table[]);


     uint8_t randomByte();


     int16_t getChipVersion();


     #if !RADIOLIB_EXCLUDE_DIRECT_RECEIVE

     void setDirectAction(void (*func)(void));


     void readBit(uint32_t pin);

     #endif


    int16_t fixedPacketLengthMode(uint8_t len = RADIOLIB_SI443X_MAX_PACKET_LENGTH);


    int16_t variablePacketLengthMode(uint8_t maxLen = RADIOLIB_SI443X_MAX_PACKET_LENGTH);


 #if !RADIOLIB_GODMODE && !RADIOLIB_LOW_LEVEL

   protected:

 #endif

     Module* getMod();


 #if !RADIOLIB_GODMODE

   protected:

 #endif

     int16_t setFrequencyRaw(float newFreq);


 #if !RADIOLIB_GODMODE

   private:

 #endif

     Module* mod;


     float bitRate = 0;

     float frequencyDev = 0;

     float frequency = 0;


     size_t packetLength = 0;

     bool packetLengthQueried = false;

     uint8_t packetLengthConfig = RADIOLIB_SI443X_FIXED_PACKET_LENGTH_ON;


     bool findChip();

     void clearIRQFlags();

     void clearFIFO(size_t count);

     int16_t config();

     int16_t updateClockRecovery();

     int16_t directMode();

     int16_t setPacketMode(uint8_t mode, uint8_t len);

 };


 #endif


 #endif

Module
Implements all common low-level methods to control the wireless module. Every module class contains o...
Definition: Module.h:68

Module::RFSWITCH_MAX_PINS
static const size_t RFSWITCH_MAX_PINS
The maximum number of pins supported by the RF switch code. Note: It is not recommended to use this c...
Definition: Module.h:77

PhysicalLayer
Provides common interface for protocols that run on LoRa/FSK modules, such as RTTY or LoRaWAN....
Definition: PhysicalLayer.h:54

PhysicalLayer::readData
virtual int16_t readData(uint8_t *data, size_t len)
Reads data that was received after calling startReceive method.
Definition: PhysicalLayer.cpp:209

PhysicalLayer::transmit
int16_t transmit(const char *str, uint8_t addr=0)
C-string transmit method.
Definition: PhysicalLayer.cpp:52

PhysicalLayer::startTransmit
int16_t startTransmit(const char *str, uint8_t addr=0)
Interrupt-driven Arduino String transmit method. Unlike the standard transmit method,...
Definition: PhysicalLayer.cpp:149

PhysicalLayer::receive
virtual int16_t receive(uint8_t *data, size_t len)
Binary receive method. Must be implemented in module class.
Definition: PhysicalLayer.cpp:112

Si443x
Base class for Si443x series. All derived classes for Si443x (e.g. Si4431 or Si4432) inherit from thi...
Definition: Si443x.h:553

Si443x::startReceive
int16_t startReceive()
Interrupt-driven receive method. IRQ will be activated when full valid packet is received.
Definition: Si443x.cpp:278

Si443x::setEncoding
int16_t setEncoding(uint8_t encoding) override
Sets transmission encoding. Only available in FSK mode. Allowed values are RADIOLIB_ENCODING_NRZ,...
Definition: Si443x.cpp:552

Si443x::receiveDirect
int16_t receiveDirect() override
Enables direct reception mode. While in direct mode, the module will not be able to transmit or recei...
Definition: Si443x.cpp:185

Si443x::clearPacketSentAction
void clearPacketSentAction()
Clears interrupt service routine to call when a packet is sent.
Definition: Si443x.cpp:225

Si443x::setPacketReceivedAction
void setPacketReceivedAction(void(*func)(void))
Sets interrupt service routine to call when a packet is received.
Definition: Si443x.cpp:213

Si443x::getPacketLength
size_t getPacketLength(bool update=true) override
Query modem for the packet length of received payload.
Definition: Si443x.cpp:539

Si443x::readData
virtual int16_t readData(uint8_t *data, size_t len)
Reads data that was received after calling startReceive method.
Definition: PhysicalLayer.cpp:209

Si443x::setRfSwitchPins
void setRfSwitchPins(uint32_t rxEn, uint32_t txEn)
Some modules contain external RF switch controlled by pins. This function gives RadioLib control over...
Definition: Si443x.cpp:591

Si443x::begin
int16_t begin(float br, float freqDev, float rxBw, uint8_t preambleLen)
Initialization method.
Definition: Si443x.cpp:9

Si443x::setPreambleLength
int16_t setPreambleLength(uint8_t preambleLen)
Sets preamble length.
Definition: Si443x.cpp:523

Si443x::transmit
int16_t transmit(const char *str, uint8_t addr=0)
C-string transmit method.
Definition: PhysicalLayer.cpp:52

Si443x::setSyncWord
int16_t setSyncWord(uint8_t *syncWord, size_t len)
Sets sync word. Up to 4 bytes can be set as sync word.
Definition: Si443x.cpp:506

Si443x::setRxBandwidth
int16_t setRxBandwidth(float rxBw)
Sets receiver bandwidth. Allowed values range from 2.6 to 620.7 kHz.
Definition: Si443x.cpp:399

Si443x::getChipVersion
int16_t getChipVersion()
Read version SPI register. Should return RADIOLIB_SI443X_DEVICE_VERSION (0x06) if Si443x is connected...
Definition: Si443x.cpp:618

Si443x::setDirectAction
void setDirectAction(void(*func)(void))
Set interrupt service routine function to call when data bit is received in direct mode.
Definition: Si443x.cpp:623

Si443x::transmitDirect
int16_t transmitDirect(uint32_t frf=0) override
Enables direct transmission mode. While in direct mode, the module will not be able to transmit or re...
Definition: Si443x.cpp:143

Si443x::packetMode
int16_t packetMode()
Disables direct mode and enables packet mode, allowing the module to receive packets.
Definition: Si443x.cpp:198

Si443x::clearPacketReceivedAction
void clearPacketReceivedAction()
Clears interrupt service routine to call when a packet is received.
Definition: Si443x.cpp:217

Si443x::finishTransmit
int16_t finishTransmit() override
Clean up after transmission is done.
Definition: Si443x.cpp:270

Si443x::randomByte
uint8_t randomByte()
Get one truly random byte from RSSI noise.
Definition: Si443x.cpp:599

Si443x::setFrequencyDeviation
int16_t setFrequencyDeviation(float freqDev) override
Sets FSK frequency deviation from carrier frequency. Allowed values range from 0.625 to 320....
Definition: Si443x.cpp:376

Si443x::setIrqAction
void setIrqAction(void(*func)(void))
Sets interrupt service routine to call when IRQ activates.
Definition: Si443x.cpp:205

Si443x::setRfSwitchTable
void setRfSwitchTable(const uint32_t(&pins)[Module::RFSWITCH_MAX_PINS], const Module::RfSwitchMode_t table[])
Some modules contain external RF switch controlled by pins. This function gives RadioLib control over...
Definition: Si443x.cpp:595

Si443x::clearIrqAction
void clearIrqAction()
Clears interrupt service routine to call when IRQ activates.
Definition: Si443x.cpp:209

Si443x::startTransmit
int16_t startTransmit(const char *str, uint8_t addr=0)
Interrupt-driven Arduino String transmit method. Unlike the standard transmit method,...
Definition: PhysicalLayer.cpp:149

Si443x::setPacketSentAction
void setPacketSentAction(void(*func)(void))
Sets interrupt service routine to call when a packet is sent.
Definition: Si443x.cpp:221

Si443x::receive
virtual int16_t receive(uint8_t *data, size_t len)
Binary receive method. Must be implemented in module class.
Definition: PhysicalLayer.cpp:112

Si443x::variablePacketLengthMode
int16_t variablePacketLengthMode(uint8_t maxLen=RADIOLIB_SI443X_MAX_PACKET_LENGTH)
Set modem in variable packet length mode.
Definition: Si443x.cpp:636

Si443x::standby
int16_t standby() override
Sets the module to standby (with XTAL on).
Definition: Si443x.cpp:133

Si443x::fixedPacketLengthMode
int16_t fixedPacketLengthMode(uint8_t len=RADIOLIB_SI443X_MAX_PACKET_LENGTH)
Set modem in fixed packet length mode.
Definition: Si443x.cpp:632

Si443x::setBitRate
int16_t setBitRate(float br)
Sets FSK bit rate. Allowed values range from 0.123 to 256.0 kbps.
Definition: Si443x.cpp:345

Si443x::sleep
int16_t sleep()
Sets the module to sleep to save power. Module will not be able to transmit or receive any data while...
Definition: Si443x.cpp:117

Si443x::setDataShaping
int16_t setDataShaping(uint8_t sh) override
Sets Gaussian filter bandwidth-time product that will be used for data shaping. Only available in FSK...
Definition: Si443x.cpp:571

Si443x::reset
void reset()
Reset method. Will reset the chip to the default state using SDN pin.
Definition: Si443x.cpp:66

Si443x::Si443x
Si443x(Module *mod)
Default constructor.
Definition: Si443x.cpp:5

Si443x::readBit
void readBit(uint32_t pin)
Function to read and process data bit in direct reception mode.
Definition: Si443x.cpp:627

Module::RfSwitchMode_t
Description of RF switch pin states for a single mode. See setRfSwitchTable for details.
Definition: Module.h:84