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楼主 |
发表于 2017-7-13 17:31:45
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void SX1276LoRaStartRx( void )
{
U8 RegIrqFlagsMask;
U8 RegHopPeriod;
U8 RegHopChannel;
U8 RegDioMapping1;
U8 RegDioMapping2;
SX1276LoRaSetOpMode( RFLR_OPMODE_STANDBY );
RegIrqFlagsMask = RFLR_IRQFLAGS_RXTIMEOUT | //中断屏蔽
//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, RegIrqFlagsMask );
if ( LoRaSettings.FreqHopOn == TRUE ) //没有跳频
{
RegHopPeriod = LoRaSettings.HopPeriod;
SX1276Read( REG_LR_HOPCHANNEL, &RegHopChannel );
// SX1276LoRaSetRFFrequency( HoppingFrequencies[SX1276LR->RegHopChannel & RFLR_HOPCHANNEL_CHANNEL_MASK] );
}
else
{
RegHopPeriod = 255;
}
SX1276Write( REG_LR_HOPPERIOD, RegHopPeriod ); //频率跳变之间的符号周期
// RxDone RxTimeout FhssChangeChannel CadDone
RegDioMapping1 = RFLR_DIOMAPPING1_DIO0_00 | RFLR_DIOMAPPING1_DIO1_00 | RFLR_DIOMAPPING1_DIO2_00 | RFLR_DIOMAPPING1_DIO3_01;
// CadDetected ModeReady
RegDioMapping2 = RFLR_DIOMAPPING2_DIO4_00 | RFLR_DIOMAPPING2_DIO5_00;
SX1276Write( REG_LR_DIOMAPPING1, RegDioMapping1);
SX1276Write( REG_LR_DIOMAPPING2, RegDioMapping2);
{
U8 RegFifoRxBaseAddr;
SX1276Read( 0x0f, &RegFifoRxBaseAddr );
SX1276Write( REG_LR_FIFOADDRPTR, RegFifoRxBaseAddr );
}
SX1276LoRaSetOpMode( RFLR_OPMODE_RECEIVER );
RTX_State = RX_STATE_BIT | RX_STATE_WAIT_FOR_PACKET;
}
这是接收的代码,还有一个函数是初始化的,初始化完后就开始连续接收。定时检测接收中断标志位,查询状态寄存器(0x18)是能检测到信号有有效报头的,就是进不了有效报头中断和接收中断。谁能指点一下啊,解决后,有偿! |
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