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sx1280.cpp
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/*
This file is part of SX1280 Linux driver.
Copyright (C) 2020 ReimuNotMoe
This program is based on sx1280-driver from Semtech S.A.,
see LICENSE-SEMTECH.txt for details.
Original maintainer of sx1280-driver: Miguel Luis, Gregory Cristian
and Matthieu Verdy
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "sx1280.hpp"
using namespace YukiWorkshop::Drivers::Semtech;
/*!
* \brief Radio registers definition
*
*/
typedef struct
{
uint16_t Addr; //!< The address of the register
uint8_t Value; //!< The value of the register
}RadioRegisters_t;
/*!
* \brief Radio hardware registers initialization definition
*/
#define RADIO_INIT_REGISTERS_VALUE { }
/*!
* \brief Radio hardware registers initialization
*/
const RadioRegisters_t RadioRegsInit[] = RADIO_INIT_REGISTERS_VALUE;
void SX1280::Init() {
Reset();
IoIrqInit(dioIrq);
Wakeup();
SetRegistersDefault();
}
void SX1280::SetRegistersDefault( void )
{
for( int16_t i = 0; i < sizeof( RadioRegsInit ) / sizeof( RadioRegisters_t ); i++ )
{
WriteRegister( RadioRegsInit[i].Addr, RadioRegsInit[i].Value );
}
}
uint16_t SX1280::GetFirmwareVersion( void )
{
return( ( ( ReadRegister( REG_LR_FIRMWARE_VERSION_MSB ) ) << 8 ) | ( ReadRegister( REG_LR_FIRMWARE_VERSION_MSB + 1 ) ) );
}
RadioStatus_t SX1280::GetStatus( void )
{
uint8_t stat = 0;
RadioStatus_t status;
ReadCommand( RADIO_GET_STATUS, ( uint8_t * )&stat, 1 );
status.Value = stat;
return( status );
}
RadioOperatingModes_t SX1280::GetOpMode( void )
{
return( OperatingMode );
}
void SX1280::SetSleep( SleepParams_t sleepConfig )
{
uint8_t sleep = ( sleepConfig.WakeUpRTC << 3 ) |
( sleepConfig.InstructionRamRetention << 2 ) |
( sleepConfig.DataBufferRetention << 1 ) |
( sleepConfig.DataRamRetention );
OperatingMode = MODE_SLEEP;
WriteCommand( RADIO_SET_SLEEP, &sleep, 1 );
}
void SX1280::SetStandby( RadioStandbyModes_t standbyConfig )
{
WriteCommand( RADIO_SET_STANDBY, ( uint8_t* )&standbyConfig, 1 );
if (standbyConfig == STDBY_RC )
{
OperatingMode = MODE_STDBY_RC;
}
else
{
OperatingMode = MODE_STDBY_XOSC;
}
}
void SX1280::SetFs( void )
{
WriteCommand( RADIO_SET_FS, 0, 0 );
OperatingMode = MODE_FS;
}
void SX1280::SetTx( TickTime_t timeout )
{
uint8_t buf[3];
buf[0] = timeout.PeriodBase;
buf[1] = ( uint8_t )( ( timeout.PeriodBaseCount >> 8 ) & 0x00FF );
buf[2] = ( uint8_t )( timeout.PeriodBaseCount & 0x00FF );
ClearIrqStatus( IRQ_RADIO_ALL );
// If the radio is doing ranging operations, then apply the specific calls
// prior to SetTx
if (GetPacketType( true ) == PACKET_TYPE_RANGING )
{
SetRangingRole( RADIO_RANGING_ROLE_MASTER );
}
WriteCommand( RADIO_SET_TX, buf, 3 );
OperatingMode = MODE_TX;
}
void SX1280::SetRx( TickTime_t timeout )
{
uint8_t buf[3];
buf[0] = timeout.PeriodBase;
buf[1] = ( uint8_t )( ( timeout.PeriodBaseCount >> 8 ) & 0x00FF );
buf[2] = ( uint8_t )( timeout.PeriodBaseCount & 0x00FF );
ClearIrqStatus( IRQ_RADIO_ALL );
// If the radio is doing ranging operations, then apply the specific calls
// prior to SetRx
if (GetPacketType( true ) == PACKET_TYPE_RANGING )
{
SetRangingRole( RADIO_RANGING_ROLE_SLAVE );
}
WriteCommand( RADIO_SET_RX, buf, 3 );
OperatingMode = MODE_RX;
}
void SX1280::SetRxDutyCycle( RadioTickSizes_t periodBase, uint16_t periodBaseCountRx, uint16_t periodBaseCountSleep )
{
uint8_t buf[5];
buf[0] = periodBase;
buf[1] = ( uint8_t )( ( periodBaseCountRx >> 8 ) & 0x00FF );
buf[2] = ( uint8_t )( periodBaseCountRx & 0x00FF );
buf[3] = ( uint8_t )( ( periodBaseCountSleep >> 8 ) & 0x00FF );
buf[4] = ( uint8_t )( periodBaseCountSleep & 0x00FF );
WriteCommand( RADIO_SET_RXDUTYCYCLE, buf, 5 );
OperatingMode = MODE_RX;
}
void SX1280::SetCad( void )
{
WriteCommand( RADIO_SET_CAD, 0, 0 );
OperatingMode = MODE_CAD;
}
void SX1280::SetTxContinuousWave( void )
{
WriteCommand( RADIO_SET_TXCONTINUOUSWAVE, 0, 0 );
}
void SX1280::SetTxContinuousPreamble( void )
{
WriteCommand( RADIO_SET_TXCONTINUOUSPREAMBLE, 0, 0 );
}
void SX1280::SetPacketType( RadioPacketTypes_t packetType )
{
// Save packet type internally to avoid questioning the radio
this->PacketType = packetType;
WriteCommand( RADIO_SET_PACKETTYPE, ( uint8_t* )&packetType, 1 );
}
RadioPacketTypes_t SX1280::GetPacketType( bool returnLocalCopy )
{
RadioPacketTypes_t packetType = PACKET_TYPE_NONE;
if (returnLocalCopy == false )
{
ReadCommand( RADIO_GET_PACKETTYPE, ( uint8_t* )&packetType, 1 );
if (this->PacketType != packetType )
{
this->PacketType = packetType;
}
}
else
{
packetType = this->PacketType;
}
return packetType;
}
void SX1280::SetRfFrequency( uint32_t rfFrequency )
{
uint8_t buf[3];
uint32_t freq = 0;
freq = ( uint32_t )( ( double )rfFrequency / ( double )FREQ_STEP );
buf[0] = ( uint8_t )( ( freq >> 16 ) & 0xFF );
buf[1] = ( uint8_t )( ( freq >> 8 ) & 0xFF );
buf[2] = ( uint8_t )( freq & 0xFF );
WriteCommand( RADIO_SET_RFFREQUENCY, buf, 3 );
}
void SX1280::SetTxParams( int8_t power, RadioRampTimes_t rampTime )
{
uint8_t buf[2];
// The power value to send on SPI/UART is in the range [0..31] and the
// physical output power is in the range [-18..13]dBm
buf[0] = power + 18;
buf[1] = ( uint8_t )rampTime;
WriteCommand( RADIO_SET_TXPARAMS, buf, 2 );
}
void SX1280::SetCadParams( RadioLoRaCadSymbols_t cadSymbolNum )
{
WriteCommand( RADIO_SET_CADPARAMS, ( uint8_t* )&cadSymbolNum, 1 );
OperatingMode = MODE_CAD;
}
void SX1280::SetBufferBaseAddresses( uint8_t txBaseAddress, uint8_t rxBaseAddress )
{
uint8_t buf[2];
buf[0] = txBaseAddress;
buf[1] = rxBaseAddress;
WriteCommand( RADIO_SET_BUFFERBASEADDRESS, buf, 2 );
}
void SX1280::SetModulationParams( ModulationParams_t *modParams )
{
uint8_t buf[3];
// Check if required configuration corresponds to the stored packet type
// If not, silently update radio packet type
if (this->PacketType != modParams->PacketType )
{
this->SetPacketType( modParams->PacketType );
}
switch( modParams->PacketType )
{
case PACKET_TYPE_GFSK:
buf[0] = modParams->Params.Gfsk.BitrateBandwidth;
buf[1] = modParams->Params.Gfsk.ModulationIndex;
buf[2] = modParams->Params.Gfsk.ModulationShaping;
break;
case PACKET_TYPE_LORA:
case PACKET_TYPE_RANGING:
buf[0] = modParams->Params.LoRa.SpreadingFactor;
buf[1] = modParams->Params.LoRa.Bandwidth;
buf[2] = modParams->Params.LoRa.CodingRate;
this->LoRaBandwidth = modParams->Params.LoRa.Bandwidth;
break;
case PACKET_TYPE_FLRC:
buf[0] = modParams->Params.Flrc.BitrateBandwidth;
buf[1] = modParams->Params.Flrc.CodingRate;
buf[2] = modParams->Params.Flrc.ModulationShaping;
break;
case PACKET_TYPE_BLE:
buf[0] = modParams->Params.Ble.BitrateBandwidth;
buf[1] = modParams->Params.Ble.ModulationIndex;
buf[2] = modParams->Params.Ble.ModulationShaping;
break;
case PACKET_TYPE_NONE:
buf[0] = 0;
buf[1] = 0;
buf[2] = 0;
break;
}
WriteCommand( RADIO_SET_MODULATIONPARAMS, buf, 3 );
}
void SX1280::SetPacketParams( PacketParams_t *packetParams )
{
uint8_t buf[7];
// Check if required configuration corresponds to the stored packet type
// If not, silently update radio packet type
if (this->PacketType != packetParams->PacketType )
{
this->SetPacketType( packetParams->PacketType );
}
switch( packetParams->PacketType )
{
case PACKET_TYPE_GFSK:
buf[0] = packetParams->Params.Gfsk.PreambleLength;
buf[1] = packetParams->Params.Gfsk.SyncWordLength;
buf[2] = packetParams->Params.Gfsk.SyncWordMatch;
buf[3] = packetParams->Params.Gfsk.HeaderType;
buf[4] = packetParams->Params.Gfsk.PayloadLength;
buf[5] = packetParams->Params.Gfsk.CrcLength;
buf[6] = packetParams->Params.Gfsk.Whitening;
break;
case PACKET_TYPE_LORA:
case PACKET_TYPE_RANGING:
buf[0] = packetParams->Params.LoRa.PreambleLength;
buf[1] = packetParams->Params.LoRa.HeaderType;
buf[2] = packetParams->Params.LoRa.PayloadLength;
buf[3] = packetParams->Params.LoRa.Crc;
buf[4] = packetParams->Params.LoRa.InvertIQ;
buf[5] = 0;
buf[6] = 0;
break;
case PACKET_TYPE_FLRC:
buf[0] = packetParams->Params.Flrc.PreambleLength;
buf[1] = packetParams->Params.Flrc.SyncWordLength;
buf[2] = packetParams->Params.Flrc.SyncWordMatch;
buf[3] = packetParams->Params.Flrc.HeaderType;
buf[4] = packetParams->Params.Flrc.PayloadLength;
buf[5] = packetParams->Params.Flrc.CrcLength;
buf[6] = packetParams->Params.Flrc.Whitening;
break;
case PACKET_TYPE_BLE:
buf[0] = packetParams->Params.Ble.ConnectionState;
buf[1] = packetParams->Params.Ble.CrcLength;
buf[2] = packetParams->Params.Ble.BleTestPayload;
buf[3] = packetParams->Params.Ble.Whitening;
buf[4] = 0;
buf[5] = 0;
buf[6] = 0;
break;
case PACKET_TYPE_NONE:
buf[0] = 0;
buf[1] = 0;
buf[2] = 0;
buf[3] = 0;
buf[4] = 0;
buf[5] = 0;
buf[6] = 0;
break;
}
WriteCommand( RADIO_SET_PACKETPARAMS, buf, 7 );
}
void SX1280::ForcePreambleLength( RadioPreambleLengths_t preambleLength )
{
this->WriteRegister( REG_LR_PREAMBLELENGTH, ( this->ReadRegister( REG_LR_PREAMBLELENGTH ) & MASK_FORCE_PREAMBLELENGTH ) | preambleLength );
}
void SX1280::GetRxBufferStatus( uint8_t *rxPayloadLength, uint8_t *rxStartBufferPointer )
{
uint8_t status[2];
ReadCommand( RADIO_GET_RXBUFFERSTATUS, status, 2 );
// In case of LORA fixed header, the rxPayloadLength is obtained by reading
// the register REG_LR_PAYLOADLENGTH
if (( this -> GetPacketType( true ) == PACKET_TYPE_LORA ) && ( ReadRegister( REG_LR_PACKETPARAMS ) >> 7 == 1 ) )
{
*rxPayloadLength = ReadRegister( REG_LR_PAYLOADLENGTH );
}
else if (this -> GetPacketType( true ) == PACKET_TYPE_BLE )
{
// In the case of BLE, the size returned in status[0] do not include the 2-byte length PDU header
// so it is added there
*rxPayloadLength = status[0] + 2;
}
else
{
*rxPayloadLength = status[0];
}
*rxStartBufferPointer = status[1];
}
void SX1280::GetPacketStatus( PacketStatus_t *packetStatus )
{
uint8_t status[5];
ReadCommand( RADIO_GET_PACKETSTATUS, status, 5 );
packetStatus->packetType = this -> GetPacketType( true );
switch( packetStatus->packetType )
{
case PACKET_TYPE_GFSK:
packetStatus->Gfsk.RssiSync = -( status[1] / 2 );
packetStatus->Gfsk.ErrorStatus.SyncError = ( status[2] >> 6 ) & 0x01;
packetStatus->Gfsk.ErrorStatus.LengthError = ( status[2] >> 5 ) & 0x01;
packetStatus->Gfsk.ErrorStatus.CrcError = ( status[2] >> 4 ) & 0x01;
packetStatus->Gfsk.ErrorStatus.AbortError = ( status[2] >> 3 ) & 0x01;
packetStatus->Gfsk.ErrorStatus.HeaderReceived = ( status[2] >> 2 ) & 0x01;
packetStatus->Gfsk.ErrorStatus.PacketReceived = ( status[2] >> 1 ) & 0x01;
packetStatus->Gfsk.ErrorStatus.PacketControlerBusy = status[2] & 0x01;
packetStatus->Gfsk.TxRxStatus.RxNoAck = ( status[3] >> 5 ) & 0x01;
packetStatus->Gfsk.TxRxStatus.PacketSent = status[3] & 0x01;
packetStatus->Gfsk.SyncAddrStatus = status[4] & 0x07;
break;
case PACKET_TYPE_LORA:
case PACKET_TYPE_RANGING:
packetStatus->LoRa.RssiPkt = -( status[0] / 2 );
( status[1] < 128 ) ? ( packetStatus->LoRa.SnrPkt = status[1] / 4 ) : ( packetStatus->LoRa.SnrPkt = ( ( status[1] - 256 ) /4 ) );
break;
case PACKET_TYPE_FLRC:
packetStatus->Flrc.RssiSync = -( status[1] / 2 );
packetStatus->Flrc.ErrorStatus.SyncError = ( status[2] >> 6 ) & 0x01;
packetStatus->Flrc.ErrorStatus.LengthError = ( status[2] >> 5 ) & 0x01;
packetStatus->Flrc.ErrorStatus.CrcError = ( status[2] >> 4 ) & 0x01;
packetStatus->Flrc.ErrorStatus.AbortError = ( status[2] >> 3 ) & 0x01;
packetStatus->Flrc.ErrorStatus.HeaderReceived = ( status[2] >> 2 ) & 0x01;
packetStatus->Flrc.ErrorStatus.PacketReceived = ( status[2] >> 1 ) & 0x01;
packetStatus->Flrc.ErrorStatus.PacketControlerBusy = status[2] & 0x01;
packetStatus->Flrc.TxRxStatus.RxPid = ( status[3] >> 6 ) & 0x03;
packetStatus->Flrc.TxRxStatus.RxNoAck = ( status[3] >> 5 ) & 0x01;
packetStatus->Flrc.TxRxStatus.RxPidErr = ( status[3] >> 4 ) & 0x01;
packetStatus->Flrc.TxRxStatus.PacketSent = status[3] & 0x01;
packetStatus->Flrc.SyncAddrStatus = status[4] & 0x07;
break;
case PACKET_TYPE_BLE:
packetStatus->Ble.RssiSync = -( status[1] / 2 );
packetStatus->Ble.ErrorStatus.SyncError = ( status[2] >> 6 ) & 0x01;
packetStatus->Ble.ErrorStatus.LengthError = ( status[2] >> 5 ) & 0x01;
packetStatus->Ble.ErrorStatus.CrcError = ( status[2] >> 4 ) & 0x01;
packetStatus->Ble.ErrorStatus.AbortError = ( status[2] >> 3 ) & 0x01;
packetStatus->Ble.ErrorStatus.HeaderReceived = ( status[2] >> 2 ) & 0x01;
packetStatus->Ble.ErrorStatus.PacketReceived = ( status[2] >> 1 ) & 0x01;
packetStatus->Ble.ErrorStatus.PacketControlerBusy = status[2] & 0x01;
packetStatus->Ble.TxRxStatus.PacketSent = status[3] & 0x01;
packetStatus->Ble.SyncAddrStatus = status[4] & 0x07;
break;
case PACKET_TYPE_NONE:
// In that specific case, we set everything in the packetStatus to zeros
// and reset the packet type accordingly
memset( packetStatus, 0, sizeof( PacketStatus_t ) );
packetStatus->packetType = PACKET_TYPE_NONE;
break;
}
}
int8_t SX1280::GetRssiInst( void )
{
uint8_t raw = 0;
ReadCommand( RADIO_GET_RSSIINST, &raw, 1 );
return ( int8_t ) ( -raw / 2 );
}
void SX1280::SetDioIrqParams( uint16_t irqMask, uint16_t dio1Mask, uint16_t dio2Mask, uint16_t dio3Mask )
{
uint8_t buf[8];
buf[0] = ( uint8_t )( ( irqMask >> 8 ) & 0x00FF );
buf[1] = ( uint8_t )( irqMask & 0x00FF );
buf[2] = ( uint8_t )( ( dio1Mask >> 8 ) & 0x00FF );
buf[3] = ( uint8_t )( dio1Mask & 0x00FF );
buf[4] = ( uint8_t )( ( dio2Mask >> 8 ) & 0x00FF );
buf[5] = ( uint8_t )( dio2Mask & 0x00FF );
buf[6] = ( uint8_t )( ( dio3Mask >> 8 ) & 0x00FF );
buf[7] = ( uint8_t )( dio3Mask & 0x00FF );
WriteCommand( RADIO_SET_DIOIRQPARAMS, buf, 8 );
}
uint16_t SX1280::GetIrqStatus( void )
{
uint8_t irqStatus[2];
ReadCommand( RADIO_GET_IRQSTATUS, irqStatus, 2 );
return ( irqStatus[0] << 8 ) | irqStatus[1];
}
void SX1280::ClearIrqStatus( uint16_t irqMask )
{
uint8_t buf[2];
buf[0] = ( uint8_t )( ( ( uint16_t )irqMask >> 8 ) & 0x00FF );
buf[1] = ( uint8_t )( ( uint16_t )irqMask & 0x00FF );
WriteCommand( RADIO_CLR_IRQSTATUS, buf, 2 );
}
void SX1280::Calibrate( CalibrationParams_t calibParam )
{
uint8_t cal = ( calibParam.ADCBulkPEnable << 5 ) |
( calibParam.ADCBulkNEnable << 4 ) |
( calibParam.ADCPulseEnable << 3 ) |
( calibParam.PLLEnable << 2 ) |
( calibParam.RC13MEnable << 1 ) |
( calibParam.RC64KEnable );
WriteCommand( RADIO_CALIBRATE, &cal, 1 );
}
void SX1280::SetRegulatorMode( RadioRegulatorModes_t mode )
{
WriteCommand( RADIO_SET_REGULATORMODE, ( uint8_t* )&mode, 1 );
}
void SX1280::SetSaveContext( void )
{
WriteCommand( RADIO_SET_SAVECONTEXT, 0, 0 );
}
void SX1280::SetAutoTx( uint16_t time )
{
uint16_t compensatedTime = time - ( uint16_t )AUTO_TX_OFFSET;
uint8_t buf[2];
buf[0] = ( uint8_t )( ( compensatedTime >> 8 ) & 0x00FF );
buf[1] = ( uint8_t )( compensatedTime & 0x00FF );
WriteCommand( RADIO_SET_AUTOTX, buf, 2 );
}
void SX1280::StopAutoTx( void )
{
uint8_t buf[2] = {0x00, 0x00};
WriteCommand( RADIO_SET_AUTOTX, buf, 2 );
}
void SX1280::SetAutoFs( bool enableAutoFs )
{
WriteCommand( RADIO_SET_AUTOFS, ( uint8_t * )&enableAutoFs, 1 );
}
void SX1280::SetLongPreamble( bool enable )
{
WriteCommand( RADIO_SET_LONGPREAMBLE, ( uint8_t * )&enable, 1 );
}
void SX1280::SetPayload( uint8_t *buffer, uint8_t size, uint8_t offset )
{
WriteBuffer( offset, buffer, size );
}
uint8_t SX1280::GetPayload( uint8_t *buffer, uint8_t *size , uint8_t maxSize )
{
uint8_t offset;
GetRxBufferStatus( size, &offset );
if (*size > maxSize )
{
return 1;
}
ReadBuffer( offset, buffer, *size );
return 0;
}
void SX1280::SendPayload( uint8_t *payload, uint8_t size, TickTime_t timeout, uint8_t offset )
{
SetPayload( payload, size, offset );
SetTx( timeout );
}
uint8_t SX1280::SetSyncWord( uint8_t syncWordIdx, uint8_t *syncWord )
{
uint16_t addr;
uint8_t syncwordSize = 0;
switch( GetPacketType( true ) )
{
case PACKET_TYPE_GFSK:
syncwordSize = 5;
switch( syncWordIdx )
{
case 1:
addr = REG_LR_SYNCWORDBASEADDRESS1;
break;
case 2:
addr = REG_LR_SYNCWORDBASEADDRESS2;
break;
case 3:
addr = REG_LR_SYNCWORDBASEADDRESS3;
break;
default:
return 1;
}
break;
case PACKET_TYPE_FLRC:
// For FLRC packet type, the SyncWord is one byte shorter and
// the base address is shifted by one byte
syncwordSize = 4;
switch( syncWordIdx )
{
case 1:
addr = REG_LR_SYNCWORDBASEADDRESS1 + 1;
break;
case 2:
addr = REG_LR_SYNCWORDBASEADDRESS2 + 1;
break;
case 3:
addr = REG_LR_SYNCWORDBASEADDRESS3 + 1;
break;
default:
return 1;
}
break;
case PACKET_TYPE_BLE:
// For Ble packet type, only the first SyncWord is used and its
// address is shifted by one byte
syncwordSize = 4;
switch( syncWordIdx )
{
case 1:
addr = REG_LR_SYNCWORDBASEADDRESS1 + 1;
break;
default:
return 1;
}
break;
default:
return 1;
}
WriteRegister( addr, syncWord, syncwordSize );
return 0;
}
void SX1280::SetSyncWordErrorTolerance( uint8_t ErrorBits )
{
ErrorBits = ( ReadRegister( REG_LR_SYNCWORDTOLERANCE ) & 0xF0 ) | ( ErrorBits & 0x0F );
WriteRegister( REG_LR_SYNCWORDTOLERANCE, ErrorBits );
}
uint8_t SX1280::SetCrcSeed( uint8_t *seed )
{
uint8_t updated = 0;
switch( GetPacketType( true ) )
{
case PACKET_TYPE_GFSK:
case PACKET_TYPE_FLRC:
WriteRegister( REG_LR_CRCSEEDBASEADDR, seed, 2 );
updated = 1;
break;
case PACKET_TYPE_BLE:
this->WriteRegister(0x9c7, seed[2] );
this->WriteRegister(0x9c8, seed[1] );
this->WriteRegister(0x9c9, seed[0] );
updated = 1;
break;
default:
break;
}
return updated;
}
void SX1280::SetBleAccessAddress( uint32_t accessAddress )
{
this->WriteRegister( REG_LR_BLE_ACCESS_ADDRESS, ( accessAddress >> 24 ) & 0x000000FF );
this->WriteRegister( REG_LR_BLE_ACCESS_ADDRESS + 1, ( accessAddress >> 16 ) & 0x000000FF );
this->WriteRegister( REG_LR_BLE_ACCESS_ADDRESS + 2, ( accessAddress >> 8 ) & 0x000000FF );
this->WriteRegister( REG_LR_BLE_ACCESS_ADDRESS + 3, accessAddress & 0x000000FF );
}
void SX1280::SetBleAdvertizerAccessAddress( void )
{
this->SetBleAccessAddress( BLE_ADVERTIZER_ACCESS_ADDRESS );
}
void SX1280::SetCrcPolynomial( uint16_t polynomial )
{
uint8_t val[2];
val[0] = ( uint8_t )( polynomial >> 8 ) & 0xFF;
val[1] = ( uint8_t )( polynomial & 0xFF );
switch( GetPacketType( true ) )
{
case PACKET_TYPE_GFSK:
case PACKET_TYPE_FLRC:
WriteRegister( REG_LR_CRCPOLYBASEADDR, val, 2 );
break;
default:
break;
}
}
void SX1280::SetWhiteningSeed( uint8_t seed )
{
switch( GetPacketType( true ) )
{
case PACKET_TYPE_GFSK:
case PACKET_TYPE_FLRC:
case PACKET_TYPE_BLE:
WriteRegister( REG_LR_WHITSEEDBASEADDR, seed );
break;
default:
break;
}
}
void SX1280::EnableManualGain( void )
{
this->WriteRegister( REG_ENABLE_MANUAL_GAIN_CONTROL, this->ReadRegister( REG_ENABLE_MANUAL_GAIN_CONTROL ) | MASK_MANUAL_GAIN_CONTROL );
this->WriteRegister( REG_DEMOD_DETECTION, this->ReadRegister( REG_DEMOD_DETECTION ) & MASK_DEMOD_DETECTION );
}
void SX1280::DisableManualGain( void )
{
this->WriteRegister( REG_ENABLE_MANUAL_GAIN_CONTROL, this->ReadRegister( REG_ENABLE_MANUAL_GAIN_CONTROL ) & (~MASK_MANUAL_GAIN_CONTROL) );
this->WriteRegister( REG_DEMOD_DETECTION, this->ReadRegister( REG_DEMOD_DETECTION ) | (~MASK_DEMOD_DETECTION) );
}
void SX1280::SetManualGainValue( uint8_t gain )
{
this->WriteRegister( REG_MANUAL_GAIN_VALUE, ( this->ReadRegister( REG_MANUAL_GAIN_VALUE ) & MASK_MANUAL_GAIN_VALUE ) | gain );
}
void SX1280::SetLNAGainSetting( const RadioLnaSettings_t lnaSetting )
{
switch(lnaSetting)
{
case LNA_HIGH_SENSITIVITY_MODE:
{
this->WriteRegister( REG_LNA_REGIME, this->ReadRegister( REG_LNA_REGIME ) | MASK_LNA_REGIME );
break;
}
case LNA_LOW_POWER_MODE:
{
this->WriteRegister( REG_LNA_REGIME, this->ReadRegister( REG_LNA_REGIME ) & ~MASK_LNA_REGIME );
break;
}
}
}
void SX1280::SetRangingIdLength( RadioRangingIdCheckLengths_t length )
{
switch( GetPacketType( true ) )
{
case PACKET_TYPE_RANGING:
WriteRegister( REG_LR_RANGINGIDCHECKLENGTH, ( ( ( ( uint8_t )length ) & 0x03 ) << 6 ) | ( ReadRegister( REG_LR_RANGINGIDCHECKLENGTH ) & 0x3F ) );
break;
default:
break;
}
}
void SX1280::SetDeviceRangingAddress( uint32_t address )
{
uint8_t addrArray[] = { static_cast<uint8_t>(address >> 24), static_cast<uint8_t>(address >> 16),
static_cast<uint8_t>(address >> 8), static_cast<uint8_t>(address) };
switch( GetPacketType( true ) )
{
case PACKET_TYPE_RANGING:
WriteRegister( REG_LR_DEVICERANGINGADDR, addrArray, 4 );
break;
default:
break;
}
}
void SX1280::SetRangingRequestAddress( uint32_t address )
{
uint8_t addrArray[] = { static_cast<uint8_t>(address >> 24), static_cast<uint8_t>(address >> 16),
static_cast<uint8_t>(address >> 8), static_cast<uint8_t>(address) };
switch( GetPacketType( true ) )
{
case PACKET_TYPE_RANGING:
WriteRegister( REG_LR_REQUESTRANGINGADDR, addrArray, 4 );
break;
default:
break;
}
}
double SX1280::GetRangingResult( RadioRangingResultTypes_t resultType )
{
uint32_t valLsb = 0;
double val = 0.0;
switch( GetPacketType( true ) )
{
case PACKET_TYPE_RANGING:
this->SetStandby( STDBY_XOSC );
this->WriteRegister( 0x97F, this->ReadRegister( 0x97F ) | ( 1 << 1 ) ); // enable LORA modem clock
WriteRegister( REG_LR_RANGINGRESULTCONFIG, ( ReadRegister( REG_LR_RANGINGRESULTCONFIG ) & MASK_RANGINGMUXSEL ) | ( ( ( ( uint8_t )resultType ) & 0x03 ) << 4 ) );
valLsb = ( ( ReadRegister( REG_LR_RANGINGRESULTBASEADDR ) << 16 ) | ( ReadRegister( REG_LR_RANGINGRESULTBASEADDR + 1 ) << 8 ) | ( ReadRegister( REG_LR_RANGINGRESULTBASEADDR + 2 ) ) );
this->SetStandby( STDBY_RC );
// Convertion from LSB to distance. For explanation on the formula, refer to Datasheet of SX1280
switch( resultType )
{
case RANGING_RESULT_RAW:
// Convert the ranging LSB to distance in meter
// The theoretical conversion from register value to distance [m] is given by:
// distance [m] = ( complement2( register ) * 150 ) / ( 2^12 * bandwidth[MHz] ) )
// The API provide BW in [Hz] so the implemented formula is complement2( register ) / bandwidth[Hz] * A,
// where A = 150 / (2^12 / 1e6) = 36621.09
val = ( double )complement2( valLsb, 24 ) / ( double )this->GetLoRaBandwidth( ) * 36621.09375;
break;
case RANGING_RESULT_AVERAGED:
case RANGING_RESULT_DEBIASED:
case RANGING_RESULT_FILTERED:
val = ( double )valLsb * 20.0 / 100.0;
break;
default:
val = 0.0;
}
break;
default:
break;
}
return val;
}
uint8_t SX1280::GetRangingPowerDeltaThresholdIndicator( void )
{
SetStandby( STDBY_XOSC );
WriteRegister( 0x97F, ReadRegister( 0x97F ) | ( 1 << 1 ) ); // enable LoRa modem clock
WriteRegister( REG_LR_RANGINGRESULTCONFIG, ( ReadRegister( REG_LR_RANGINGRESULTCONFIG ) & MASK_RANGINGMUXSEL ) | ( ( ( ( uint8_t )RANGING_RESULT_RAW ) & 0x03 ) << 4 ) ); // Select raw results
return ReadRegister( REG_RANGING_RSSI );
}
void SX1280::SetRangingCalibration( uint16_t cal )
{
switch( GetPacketType( true ) )
{
case PACKET_TYPE_RANGING:
WriteRegister( REG_LR_RANGINGRERXTXDELAYCAL, ( uint8_t )( ( cal >> 8 ) & 0xFF ) );
WriteRegister( REG_LR_RANGINGRERXTXDELAYCAL + 1, ( uint8_t )( ( cal ) & 0xFF ) );
break;
default:
break;
}
}
void SX1280::RangingClearFilterResult( void )
{
uint8_t regVal = ReadRegister( REG_LR_RANGINGRESULTCLEARREG );
// To clear result, set bit 5 to 1 then to 0
WriteRegister( REG_LR_RANGINGRESULTCLEARREG, regVal | ( 1 << 5 ) );
WriteRegister( REG_LR_RANGINGRESULTCLEARREG, regVal & ( ~( 1 << 5 ) ) );
}
void SX1280::RangingSetFilterNumSamples( uint8_t num )
{
// Silently set 8 as minimum value
WriteRegister( REG_LR_RANGINGFILTERWINDOWSIZE, ( num < DEFAULT_RANGING_FILTER_SIZE ) ? DEFAULT_RANGING_FILTER_SIZE : num );
}
void SX1280::SetRangingRole( RadioRangingRoles_t role )
{
uint8_t buf[1];
buf[0] = role;
WriteCommand( RADIO_SET_RANGING_ROLE, &buf[0], 1 );
}
double SX1280::GetFrequencyError( )
{
uint8_t efeRaw[3] = {0};
uint32_t efe = 0;
double efeHz = 0.0;
switch( this->GetPacketType( true ) )
{
case PACKET_TYPE_LORA:
case PACKET_TYPE_RANGING:
efeRaw[0] = this->ReadRegister( REG_LR_ESTIMATED_FREQUENCY_ERROR_MSB );
efeRaw[1] = this->ReadRegister( REG_LR_ESTIMATED_FREQUENCY_ERROR_MSB + 1 );
efeRaw[2] = this->ReadRegister( REG_LR_ESTIMATED_FREQUENCY_ERROR_MSB + 2 );
efe = ( efeRaw[0]<<16 ) | ( efeRaw[1]<<8 ) | efeRaw[2];
efe &= REG_LR_ESTIMATED_FREQUENCY_ERROR_MASK;
efeHz = 1.55 * ( double )complement2( efe, 20 ) / ( 1600.0 / ( double )this->GetLoRaBandwidth( ) * 1000.0 );
break;
case PACKET_TYPE_NONE:
case PACKET_TYPE_BLE:
case PACKET_TYPE_FLRC:
case PACKET_TYPE_GFSK:
break;
}
return efeHz;
}
void SX1280::SetPollingMode( void )
{
this->PollingMode = true;
}
int32_t SX1280::complement2( const uint32_t num, const uint8_t bitCnt )
{
int32_t retVal = ( int32_t )num;
if (num >= 2<<( bitCnt - 2 ) )
{
retVal -= 2<<( bitCnt - 1 );
}
return retVal;
}
int32_t SX1280::GetLoRaBandwidth( )
{
int32_t bwValue = 0;
switch( this->LoRaBandwidth )
{
case LORA_BW_0200:
bwValue = 203125;
break;
case LORA_BW_0400:
bwValue = 406250;
break;
case LORA_BW_0800:
bwValue = 812500;
break;
case LORA_BW_1600:
bwValue = 1625000;
break;
default:
bwValue = 0;
}
return bwValue;
}
void SX1280::SetInterruptMode( void )
{
this->PollingMode = false;
}
void SX1280::OnDioIrq( void )
{
/*
* When polling mode is activated, it is up to the application to call
* ProcessIrqs( ). Otherwise, the driver automatically calls ProcessIrqs( )
* on radio interrupt.
*/
if (this->PollingMode == true )
{
this->IrqState = true;
}
else
{
this->ProcessIrqs();
}
}
void SX1280::ProcessIrqs( void )
{
RadioPacketTypes_t packetType = PACKET_TYPE_NONE;
if (this->PollingMode == true )
{
if (this->IrqState == true )
{
// __disable_irq();
this->IrqState = false;
// __enable_irq();
}
else
{
return;
}
}
packetType = GetPacketType( true );
uint16_t irqRegs = GetIrqStatus();
ClearIrqStatus( IRQ_RADIO_ALL );
#if (SX1280_DEBUG == 1 )
DigitalOut TEST_PIN_1( D14 );
DigitalOut TEST_PIN_2( D15 );
for( int i = 0x8000; i != 0; i >>= 1 )
{
TEST_PIN_2 = 0;
TEST_PIN_1 = ( ( irqRegs & i ) != 0 ) ? 1 : 0;
TEST_PIN_2 = 1;
}
TEST_PIN_1 = 0;
TEST_PIN_2 = 0;
#endif
switch( packetType )
{
case PACKET_TYPE_GFSK:
case PACKET_TYPE_FLRC:
case PACKET_TYPE_BLE:
switch( OperatingMode )
{
case MODE_RX:
if (( irqRegs & IRQ_RX_DONE ) == IRQ_RX_DONE )
{