void EXTI0_IRQHandler(void)
{
if(EXTI_GetITStatus(DIO0_IRQ) != RESET)
{
EXTI_ClearITPendingBit(DIO0_IRQ);
hal_DIOx_ITConfig(all,DISABLE);
if(g_fsk.states == RF_STATE_TX_RUNNING)
{
SX1276FskSetOpMode( RF_OPMODE_STANDBY );
g_fsk.states = RF_STATE_TX_DONE;
process_post(&hal_RF_process, PROCESS_EVENT_MSG, (void *)(&g_fsk.states));
}
if(g_fsk.states == RF_STATE_RX_SYNC)
{
SX1276FskSetOpMode( RF_OPMODE_STANDBY );
read_fifo(true);
etimer_stop(&timer_rf);
g_fsk.states = RF_STATE_RX_DONE;
process_post(&hal_RF_process, PROCESS_EVENT_MSG, (void *)(&g_fsk.states));
}
}
}
void SX1276Fsk_recrive_Packet(void)
{
SX1276FskSetOpMode( RF_OPMODE_STANDBY );
hal_DIOx_ITConfig(all,DISABLE);
SX1276->RegDioMapping1 = packet_DIO0_RxpayloadReady | packet_DIO1_fifoLevel | packet_DIO2_SyncAddress | packet_DIO3_fifoEmpty;
// LowBat, Data
SX1276->RegDioMapping2 = packet_DIO4_Rssi_PreambleDetect | packet_DIO5_Data | RF_DIOMAPPING2_MAP_PREAMBLEDETECT;
SX1276WriteBuffer( REG_DIOMAPPING1, &SX1276->RegDioMapping1, 2 );
SX1276->RegFifoThresh = RF_FIFOTHRESH_TXSTARTCONDITION_FIFONOTEMPTY | RX_FIFO_THRESHOLD; // 24 bytes of data
SX1276Write( REG_FIFOTHRESH, SX1276->RegFifoThresh );
EXTI_ClearITPendingBit(DIO4_IRQ);
hal_DIOx_ITConfig(0,ENABLE);
hal_DIOx_ITConfig(1,ENABLE);
hal_DIOx_ITConfig(2,ENABLE);
hal_DIOx_ITConfig(4,ENABLE);
g_fsk.states = RF_STATE_RX_INIT;
g_fsk.index = 0;
//process_post(&hal_RF_process, PROCESS_EVENT_MSG, (void *)(&g_fsk.states));
SX1276FskSetOpMode( RF_OPMODE_RECEIVER );
}
void start_continuous_mode(void)
{
//4、BitSyncOn
//5、continuous mode
//6、RX
u8 RegDioMapping[2];
u8 temp;
SX1276FskSetOpMode(RF_OPMODE_STANDBY);
hal_DIOx_ITConfig(all,DISABLE);
RegDioMapping[0] = RF_DIOMAPPING1_DIO0_11 | RF_DIOMAPPING1_DIO1_00 | RF_DIOMAPPING1_DIO2_11 | RF_DIOMAPPING1_DIO3_10;
RegDioMapping[1] = RF_DIOMAPPING2_DIO4_00 | RF_DIOMAPPING2_DIO5_11 | RF_DIOMAPPING2_MAP_PREAMBLEDETECT;
SX1276WriteBuffer( REG_DIOMAPPING1, RegDioMapping, 2 );
SX1276Read(REG_OOKPEAK, &temp);
temp |= (0x20);
SX1276Write(REG_OOKPEAK, temp);
SX1276Read(REG_PACKETCONFIG2, &temp);
temp &= (~0x40);
SX1276Write(REG_PACKETCONFIG2, temp);
SX1276FskSetOpMode(RF_OPMODE_RECEIVER);
}
void EXTI3_IRQHandler(void)
{
if(EXTI_GetITStatus(DIO3_IRQ) != RESET)
{
EXTI_ClearITPendingBit(DIO3_IRQ);
hal_DIOx_ITConfig(all,DISABLE);
SX1276FskSetOpMode( RF_OPMODE_STANDBY );
}
}
void SX1276SetOpMode( uint8_t opMode )
{
if( LoRaOn == false )
{
SX1276FskSetOpMode( opMode );
}
else
{
SX1276LoRaSetOpMode( opMode );
}
}
void SX1276Fsk_Send_Packet(u8 *PBuffer,u8 length)
{
SX1276FskSetOpMode( RF_OPMODE_STANDBY );
// PacketSent, FifoLevel, FifoFull, TxReady
SX1276->RegDioMapping1 = packet_DIO0_packetSend | packet_DIO1_fifoLevel | packet_DIO2_fifoFull | packet_DIO3_TxReady;
// LowBat, Data
SX1276->RegDioMapping2 = packet_DIO4_TimeOut | packet_DIO5_Data ;
SX1276WriteBuffer( REG_DIOMAPPING1, &SX1276->RegDioMapping1, 2 );
SX1276->RegFifoThresh = RF_FIFOTHRESH_TXSTARTCONDITION_FIFONOTEMPTY | TX_FIFO_THRESHOLD; // 24 bytes of data
SX1276Write( REG_FIFOTHRESH, SX1276->RegFifoThresh );
packet_tx_data(PBuffer, length);
hal_DIOx_ITConfig(0,ENABLE);
hal_fsk_eit_failing(1,ENABLE);
fill_fifo();
g_fsk.states = RF_STATE_TX_RUNNING;
SX1276FskSetOpMode( RF_OPMODE_TRANSMITTER );
}
void EXTI2_IRQHandler(void)
{
if(EXTI_GetITStatus(DIO2_IRQ) != RESET)
{
EXTI_ClearITPendingBit(DIO2_IRQ);
if(g_fsk.states == RF_STATE_TX_RUNNING)
{
hal_DIOx_ITConfig(all,DISABLE);
SX1276FskSetOpMode( RF_OPMODE_STANDBY );
}
//sync detect
if(g_fsk.states == RF_STATE_RX_PREAMBLE)
{
hal_DIOx_ITConfig(2,DISABLE);
etimer_remodify(&timer_rf, g_fsk.plyloadtimeout);
printf("sync det\r\n");
g_fsk.states = RF_STATE_RX_SYNC;
g_fsk.rssi = SX1276FskReadRssi( );
}
}
}
void SX1276FskInit( void )
{
SX1276FskSetOpMode( RF_OPMODE_STANDBY );
SX1276FskSetDefaults( );
SX1276ReadBuffer( REG_OPMODE, SX1276Regs + 1, 0x70 - 1 );
// Set the device in FSK mode and Sleep Mode
SX1276.RegOpMode = RF_OPMODE_MODULATIONTYPE_FSK | RF_OPMODE_SLEEP;
SX1276Write( REG_OPMODE, SX1276.RegOpMode );
SX1276.RegPaRamp = RF_PARAMP_MODULATIONSHAPING_01;
SX1276Write( REG_PARAMP, SX1276.RegPaRamp );
SX1276.RegLna = RF_LNA_GAIN_G1;
SX1276Write( REG_LNA, SX1276.RegLna );
if( FskSettings.AfcOn == true )
{
SX1276.RegRxConfig = RF_RXCONFIG_RESTARTRXONCOLLISION_OFF | RF_RXCONFIG_AFCAUTO_ON |
RF_RXCONFIG_AGCAUTO_ON | RF_RXCONFIG_RXTRIGER_PREAMBLEDETECT;
}
else
{
SX1276.RegRxConfig = RF_RXCONFIG_RESTARTRXONCOLLISION_OFF | RF_RXCONFIG_AFCAUTO_OFF |
RF_RXCONFIG_AGCAUTO_ON | RF_RXCONFIG_RXTRIGER_PREAMBLEDETECT;
}
SX1276.RegPreambleLsb = 8;
SX1276.RegPreambleDetect = RF_PREAMBLEDETECT_DETECTOR_ON | RF_PREAMBLEDETECT_DETECTORSIZE_2 |
RF_PREAMBLEDETECT_DETECTORTOL_10;
SX1276.RegRssiThresh = 0xFF;
SX1276.RegSyncConfig = RF_SYNCCONFIG_AUTORESTARTRXMODE_WAITPLL_ON | RF_SYNCCONFIG_PREAMBLEPOLARITY_AA |
RF_SYNCCONFIG_SYNC_ON |
RF_SYNCCONFIG_SYNCSIZE_4;
SX1276.RegSyncValue1 = 0x69;
SX1276.RegSyncValue2 = 0x81;
SX1276.RegSyncValue3 = 0x7E;
SX1276.RegSyncValue4 = 0x96;
SX1276.RegPacketConfig1 = RF_PACKETCONFIG1_PACKETFORMAT_VARIABLE | RF_PACKETCONFIG1_DCFREE_OFF |
( FskSettings.CrcOn << 4 ) | RF_PACKETCONFIG1_CRCAUTOCLEAR_ON |
RF_PACKETCONFIG1_ADDRSFILTERING_OFF | RF_PACKETCONFIG1_CRCWHITENINGTYPE_CCITT;
SX1276FskGetPacketCrcOn(&SX1276); // Update CrcOn on FskSettings
SX1276.RegPayloadLength = FskSettings.PayloadLength;
// we can now update the registers with our configuration
SX1276WriteBuffer( REG_OPMODE, SX1276Regs + 1, 0x70 - 1 );
// then we need to set the RF settings
SX1276FskSetRFFrequency( FskSettings.RFFrequency,&SX1276);
SX1276FskSetBitrate( FskSettings.Bitrate,&SX1276 );
SX1276FskSetFdev( FskSettings.Fdev,&SX1276 );
SX1276FskSetDccBw( &SX1276.RegRxBw, 0, FskSettings.RxBw,&SX1276 );
SX1276FskSetDccBw( &SX1276.RegAfcBw, 0, FskSettings.RxBwAfc,&SX1276 );
SX1276FskSetRssiOffset( 0 ,&SX1276);
if( FskSettings.RFFrequency > 860000000 )
{
SX1276FskSetPAOutput( RF_PACONFIG_PASELECT_RFO,&SX1276 );
SX1276FskSetPa20dBm( false ,&SX1276);
FskSettings.Power = 14;
SX1276FskSetRFPower( FskSettings.Power ,&SX1276);
}
SX1276FskSetOpMode( RF_OPMODE_STANDBY );
// Calibrate the HF
SX1276FskRxCalibrate(&SX1276 );
}
void contious_tx(void)
{
SX1276->RegFifoThresh = RF_FIFOTHRESH_TXSTARTCONDITION_FIFOTHRESH | TX_FIFO_THRESHOLD; // 24 bytes of data
SX1276Write( REG_FIFOTHRESH, SX1276->RegFifoThresh );
SX1276FskSetOpMode( RF_OPMODE_TRANSMITTER );
}
