void SX1276LoRaInit( void )
{
SX1276LoRaSetOpMode( RFLR_OPMODE_SLEEP );
SX1276LoRaSetDefaults( );
SX1276ReadBuffer( 0x1,&SX1276LR, 0x70 - 1 );
SX1276Read( REG_LR_VERSION, &SX1276LR.RegVersion );
// set the RF settings
SX1276LoRaSetRFFrequency( LoRaSettings.RFFrequency,&SX1276LR );
SX1276LoRaSetRFPower_2( LoRaSettings.Power,&SX1276LR );
SX1276LoRaSetSpreadingFactor( LoRaSettings.SpreadingFactor,&SX1276LR ); // SF6 only operates in implicit header mode.
SX1276LoRaSetErrorCoding( LoRaSettings.ErrorCoding,&SX1276LR );
SX1276LoRaSetPacketCrcOn( LoRaSettings.CrcOn,&SX1276LR );
SX1276LoRaSetSignalBandwidth( LoRaSettings.SignalBw,&SX1276LR );
SX1276LoRaSetImplicitHeaderOn( LoRaSettings.ImplicitHeaderOn,&SX1276LR );
SX1276LoRaSetSymbTimeout( 0x3FF,&SX1276LR ); //Maximum - casove okno pro hledani preamble v single rezimu
SX1276LoRaSetPayloadLength( LoRaSettings.PayloadLength,&SX1276LR ); //
// SX1276LoRaSetLowDatarateOptimize( true,&SX1276LR ); //dela problemy - u delsiho paketu je rozsypany caj
/*AGC AUTO*/
SX1276Read( REG_LR_MODEMCONFIG3,&SX1276LR.RegModemConfig3 );
SX1276LR.RegModemConfig3|=0x4;
SX1276Write( REG_LR_MODEMCONFIG3,SX1276LR.RegModemConfig3 );
SX1276LoRaSetOpMode( RFLR_OPMODE_STANDBY );
}
void SX1276LoRaInit( void )
{
RFLRState = RFLR_STATE_IDLE;
SX1276LoRaSetDefaults( ); // 读取XS1276的版本号到SX1276LR->RegVersion
SX1276ReadBuffer( REG_LR_OPMODE, SX1276Regs + 1, 0x70 - 1 ); // 从REG_LR_OPMODE地址开始连续读出0x6F个寄存器的值到SX1276Regs[1...0x6F]
SX1276LR->RegLna = RFLR_LNA_GAIN_G1;
SX1276WriteBuffer( REG_LR_OPMODE, SX1276Regs + 1, 0x70 - 1 );
// set the RF settings
SX1276LoRaSetRFFrequency( LoRaSettings.RFFrequency );
SX1276LoRaSetSpreadingFactor( LoRaSettings.SpreadingFactor ); // SF6 only operates in implicit header mode.
SX1276LoRaSetErrorCoding( LoRaSettings.ErrorCoding );
SX1276LoRaSetPacketCrcOn( LoRaSettings.CrcOn );
SX1276LoRaSetSignalBandwidth( LoRaSettings.SignalBw );
SX1276LoRaSetImplicitHeaderOn( LoRaSettings.ImplicitHeaderOn );
SX1276LoRaSetSymbTimeout( 0x3FF );
SX1276LoRaSetPayloadLength( LoRaSettings.PayloadLength );
SX1276LoRaSetLowDatarateOptimize( FALSE );
#if( ( MODULE_SX1276RF1IAS == 1 ) || ( MODULE_SX1276RF1KAS == 1 ) )
if( LoRaSettings.RFFrequency > 860000000 )
{
SX1276LoRaSetPAOutput( RFLR_PACONFIG_PASELECT_RFO );
SX1276LoRaSetPa20dBm( FALSE );
LoRaSettings.Power = 14;
SX1276LoRaSetRFPower( LoRaSettings.Power );
}
else
{
SX1276LoRaSetPAOutput( RFLR_PACONFIG_PASELECT_PABOOST );
SX1276LoRaSetPa20dBm( TRUE );
LoRaSettings.Power = 20;
SX1276LoRaSetRFPower( LoRaSettings.Power );
}
#elif( MODULE_SX1276RF1JAS == 1 )
if( LoRaSettings.RFFrequency > 860000000 )
{
SX1276LoRaSetPAOutput( RFLR_PACONFIG_PASELECT_PABOOST );
SX1276LoRaSetPa20dBm( TRUE );
LoRaSettings.Power = 20;
SX1276LoRaSetRFPower( LoRaSettings.Power );
}
else
{
SX1276LoRaSetPAOutput( RFLR_PACONFIG_PASELECT_RFO );
SX1276LoRaSetPa20dBm( FALSE );
LoRaSettings.Power = 14;
SX1276LoRaSetRFPower( LoRaSettings.Power );
}
#endif
SX1276LoRaSetOpMode( RFLR_OPMODE_STANDBY );
}
void Continous_wave()
{
/*
/ _____) _ | |
( (____ _____ ____ _| |_ _____ ____| |__
\____ \| ___ | (_ _) ___ |/ ___) _ \
_____) ) ____| | | || |_| ____( (___| | | |
(______/|_____)_|_|_| \__)_____)\____)_| |_|
( C )2014 Semtech
Description: Tx Continuous Wave implementation
License: Revised BSD License, see LICENSE.TXT file include in the project
Maintainers: Miguel Luis, Gregory Cristian and Nicolas Huguenin
*/
//#include "sx1276-hal.h"
/* Set this flag to '1' to test the HF max output power or '0' to the the LF max output power */
/**
* Main application entry point.
*/
uint8_t TxOuputPower = 0;
/**********************************************/
/* WARNING */
/* The below settings can damage the chipset */
/* if wrongly used. DO NOT CHANGE THE VALUES! */
/* */
/**********************************************/
// SX1276MB1MAS
// debug("\r\n TEST_HF_OUTPUT on SX1276MB1MAS: 14 dBm at 868 MHz \r\n" );
SX1276LoRaSetRFFrequency( 869525000,&SX1276LR );
// TxOuputPower = 14;
SX1276Write( 0x01, 0x88 );
SX1276Write( 0x3D, 0xA1 );
SX1276Write( 0x36, 0x01 );
SX1276Write( 0x1e, 0x08 );
//LORA
SX1276SetLoRaOn();
SX1276LoRaInit();
SX1276LoRaSetOpMode(RFLR_OPMODE_TRANSMITTER);
// Radio.SetTxConfig( MODEM_LORA, TxOuputPower, 0, LORA_BANDWIDTH,
// LORA_SPREADING_FACTOR, LORA_CODINGRATE,
// LORA_PREAMBLE_LENGTH, LORA_FIX_LENGTH_PAYLOAD_ON,
// LORA_CRC_ENABLED, LORA_FHSS_ENABLED, LORA_NB_SYMB_HOP,
// LORA_IQ_INVERSION_ON, 3000000 );
// Sets the radio in Tx mode
// Radio.Send( NULL, 0 );
//
// debug( "Start main loop: \r\n" );
// // Blink LEDs just to show some activity
// while( 1 )
// {
// debug( "Continuous Wave activated... \r\n" );
// wait_ms( 200 );
// }
}
/*!
* \brief Process the LoRa modem Rx and Tx state machines depending on the
* SX1276 operating mode.
*
* \retval rfState Current RF state [RF_IDLE, RF_BUSY,
* RF_RX_DONE, RF_RX_TIMEOUT,
* RF_TX_DONE, RF_TX_TIMEOUT]
*/
uint32_t SX1276LoRaProcess( void )
{
uint32_t result = RF_BUSY;
switch( RFLRState )
{
case RFLR_STATE_IDLE:
break;
case RFLR_STATE_RX_INIT:
SX1276LoRaSetOpMode( RFLR_OPMODE_STANDBY );
SX1276LR->RegIrqFlagsMask = RFLR_IRQFLAGS_RXTIMEOUT |
//RFLR_IRQFLAGS_RXDONE |
//RFLR_IRQFLAGS_PAYLOADCRCERROR |
RFLR_IRQFLAGS_VALIDHEADER |
RFLR_IRQFLAGS_TXDONE |
RFLR_IRQFLAGS_CADDONE |
//RFLR_IRQFLAGS_FHSSCHANGEDCHANNEL |
RFLR_IRQFLAGS_CADDETECTED;
SX1276Write( REG_LR_IRQFLAGSMASK, SX1276LR->RegIrqFlagsMask );
if( LoRaSettings.FreqHopOn == true )
{
SX1276LR->RegHopPeriod = LoRaSettings.HopPeriod;
SX1276Read( REG_LR_HOPCHANNEL, &SX1276LR->RegHopChannel );
SX1276LoRaSetRFFrequency( HoppingFrequencies[SX1276LR->RegHopChannel & RFLR_HOPCHANNEL_CHANNEL_MASK] );
}
else
{
SX1276LR->RegHopPeriod = 255;
}
SX1276Write( REG_LR_HOPPERIOD, SX1276LR->RegHopPeriod );
// RxDone RxTimeout FhssChangeChannel CadDone
SX1276LR->RegDioMapping1 = RFLR_DIOMAPPING1_DIO0_00 | RFLR_DIOMAPPING1_DIO1_00 | RFLR_DIOMAPPING1_DIO2_00 | RFLR_DIOMAPPING1_DIO3_00;
// CadDetected ModeReady
SX1276LR->RegDioMapping2 = RFLR_DIOMAPPING2_DIO4_00 | RFLR_DIOMAPPING2_DIO5_00;
SX1276WriteBuffer( REG_LR_DIOMAPPING1, &SX1276LR->RegDioMapping1, 2 );
if( LoRaSettings.RxSingleOn == true ) // Rx single mode
{
SX1276LoRaSetOpMode( RFLR_OPMODE_RECEIVER_SINGLE );
}
else // Rx continuous mode
{
SX1276LR->RegFifoAddrPtr = SX1276LR->RegFifoRxBaseAddr;
SX1276Write( REG_LR_FIFOADDRPTR, SX1276LR->RegFifoAddrPtr );
SX1276LoRaSetOpMode( RFLR_OPMODE_RECEIVER );
}
memset( RFBuffer, 0, ( size_t )RF_BUFFER_SIZE );
PacketTimeout = LoRaSettings.RxPacketTimeout;
RxTimeoutTimer = GET_TICK_COUNT( );
RFLRState = RFLR_STATE_RX_RUNNING;
break;
case RFLR_STATE_RX_RUNNING:
if( DIO0 == 1 ) // RxDone
{
RxTimeoutTimer = GET_TICK_COUNT( );
if( LoRaSettings.FreqHopOn == true )
{
SX1276Read( REG_LR_HOPCHANNEL, &SX1276LR->RegHopChannel );
SX1276LoRaSetRFFrequency( HoppingFrequencies[SX1276LR->RegHopChannel & RFLR_HOPCHANNEL_CHANNEL_MASK] );
}
// Clear Irq
SX1276Write( REG_LR_IRQFLAGS, RFLR_IRQFLAGS_RXDONE );
RFLRState = RFLR_STATE_RX_DONE;
}
if( DIO2 == 1 ) // FHSS Changed Channel
{
RxTimeoutTimer = GET_TICK_COUNT( );
if( LoRaSettings.FreqHopOn == true )
{
SX1276Read( REG_LR_HOPCHANNEL, &SX1276LR->RegHopChannel );
SX1276LoRaSetRFFrequency( HoppingFrequencies[SX1276LR->RegHopChannel & RFLR_HOPCHANNEL_CHANNEL_MASK] );
}
// Clear Irq
SX1276Write( REG_LR_IRQFLAGS, RFLR_IRQFLAGS_FHSSCHANGEDCHANNEL );
// Debug
RxGain = SX1276LoRaReadRxGain( );
}
if( LoRaSettings.RxSingleOn == true ) // Rx single mode
{
if( ( GET_TICK_COUNT( ) - RxTimeoutTimer ) > PacketTimeout )
{
RFLRState = RFLR_STATE_RX_TIMEOUT;
}
}
break;
case RFLR_STATE_RX_DONE:
SX1276Read( REG_LR_IRQFLAGS, &SX1276LR->RegIrqFlags );
if( ( SX1276LR->RegIrqFlags & RFLR_IRQFLAGS_PAYLOADCRCERROR ) == RFLR_IRQFLAGS_PAYLOADCRCERROR )
{
// Clear Irq
SX1276Write( REG_LR_IRQFLAGS, RFLR_IRQFLAGS_PAYLOADCRCERROR );
if( LoRaSettings.RxSingleOn == true ) // Rx single mode
{
RFLRState = RFLR_STATE_RX_INIT;
}
else
{
RFLRState = RFLR_STATE_RX_RUNNING;
}
break;
}
{
uint8_t rxSnrEstimate;
SX1276Read( REG_LR_PKTSNRVALUE, &rxSnrEstimate );
if( rxSnrEstimate & 0x80 ) // The SNR sign bit is 1
{
// Invert and divide by 4
RxPacketSnrEstimate = ( ( ~rxSnrEstimate + 1 ) & 0xFF ) >> 2;
RxPacketSnrEstimate = -RxPacketSnrEstimate;
}
else
{
// Divide by 4
RxPacketSnrEstimate = ( rxSnrEstimate & 0xFF ) >> 2;
}
}
