LoRa节点开发——代码详解修改LoRaWAN相关参数

/*!
 * LoRaMAC MIB-RequestConfirm structure
 */
typedef struct eMibRequestConfirm
{
    /*!
     * MIB-Request type
     */
    Mib_t Type;
    /*!
     * MLME-RequestConfirm parameters
     */
    MibParam_t Param;
}MibRequestConfirm_t;

typedef enum eMib
{
    MIB_DEVICE_CLASS, //节点的Class类型，有Class A 、Class B、Class C三种类型
    MIB_NETWORK_ACTIVATION, //激活方式，OTAA和ABP两种
    MIB_DEV_EUI,//DEVEUI，8字节，与OTAA入网有关，也常用来标识设备
    MIB_JOIN_EUI,   //JOINEUI也叫APPEUI，8字节，与OTAA入网有关
    MIB_ADR, //是否开启ADR，用于平台调整速率和发射功率，以节省功耗
    MIB_NET_ID, //节点的网络ID
    MIB_DEV_ADDR, //节点的短地址
    MIB_GEN_APP_KEY,//加密密钥，16字节，与OTAA入网有关
    MIB_PUBLIC_NETWORK, //是否公有网络
    MIB_REPEATER_SUPPORT,//是否支持中继
    MIB_CHANNELS,
    MIB_RX2_CHANNEL,//接收窗口2
    MIB_RX2_DEFAULT_CHANNEL,//接收窗口2的速率
    MIB_RXC_CHANNEL,//Class C模式下的接收窗口
    MIB_RXC_DEFAULT_CHANNEL,
    MIB_CHANNELS_MASK, //信道掩码
    MIB_CHANNELS_DEFAULT_MASK,//默认信道掩码
    MIB_CHANNELS_NB_TRANS,//重发次数
    MIB_MAX_RX_WINDOW_DURATION,
    MIB_RECEIVE_DELAY_1, //接收窗口1打开的时间
    MIB_RECEIVE_DELAY_2, //接收窗口2打开的时间
    MIB_JOIN_ACCEPT_DELAY_1, //入网回复接收窗口1打开的时间
    MIB_JOIN_ACCEPT_DELAY_2,  //入网回复接收窗口2打开的时间
    MIB_CHANNELS_DEFAULT_DATARATE,//默认的速率
    MIB_CHANNELS_DATARATE,//速率
    MIB_CHANNELS_TX_POWER,//发射功率
    MIB_CHANNELS_DEFAULT_TX_POWER,//默认的发射功率
    MIB_SYSTEM_MAX_RX_ERROR,//
    MIB_MIN_RX_SYMBOLS,
    MIB_ANTENNA_GAIN,//天线增益
    MIB_DEFAULT_ANTENNA_GAIN,//默认的天线增益
    //参数较多，只截取了一部分
}Mib_t;

typedef union uMibParam
{
    DeviceClass_t Class;
    ActivationType_t NetworkActivation;
    uint8_t* DevEui;
    uint8_t* JoinEui;
    bool AdrEnable;
    uint32_t NetID;
    uint32_t DevAddr;
    uint8_t* GenAppKey;
    bool EnablePublicNetwork;
    bool EnableRepeaterSupport;
    uint16_t* ChannelsMask;
    uint16_t* ChannelsDefaultMask;
    uint8_t ChannelsNbTrans;
    uint32_t MaxRxWindow;
    uint32_t ReceiveDelay1;
    uint32_t ReceiveDelay2;
    uint32_t JoinAcceptDelay1;
    uint32_t JoinAcceptDelay2;
    int8_t ChannelsDefaultDatarate;
    int8_t ChannelsDatarate;
    int8_t ChannelsDefaultTxPower;
    int8_t ChannelsTxPower;
    McChannelParams_t MulticastChannel;
    uint32_t SystemMaxRxError;
    uint8_t MinRxSymbols;
    float AntennaGain;
    float DefaultAntennaGain;
  //参数较多，只截取了一部分
}MibParam_t;

uint8_t JoinEui[]={0x3C,0x9B,0x5F,0x76,0xE3,0x81,0x47,0xB1 };
uint8_t DevEui[]={0x00,0x01,0x01,0x0C,0xFF,0x00,0x00,0xE5};
uint8_t AppKey[]={0xc4,0x66,0x6e,0x42,0x54,0xc0,0x58,0x73,0x2c,0xf7,0xbc,0xe6,0x36,0x0d,0x07,0x27};

void UserConfig(void)
{
    MibRequestConfirm_t mibReq;
  
    mibReq.Type = MIB_JOIN_EUI;
    mibReq.Param.JoinEui = JoinEui;
    LoRaMacMibSetRequestConfirm( &mibReq );

    mibReq.Type = MIB_DEV_EUI;
    mibReq.Param.DevEui = DevEui;
    LoRaMacMibSetRequestConfirm( &mibReq );

    mibReq.Type = MIB_GEN_APP_KEY;
    mibReq.Param.GenAppKey = AppKey;
    LoRaMacMibSetRequestConfirm( &mibReq );

    mibReq.Type = MIB_DEVICE_CLASS;
    mibReq.Param.GenAppKey = CLASS_A;  
    LoRaMacMibSetRequestConfirm( &mibReq );

    mibReq.Type = MIB_ADR;
    mibReq.Param.GenAppKey = false;  
    LoRaMacMibSetRequestConfirm( &mibReq );

    mibReq.Type = MIB_CHANNELS_DATARATE;
    mibReq.Param.GenAppKey = DR_0;  
    //DR_0在Region.h里面定义了，这里DR_0对应的是SF12，DR_1对应的是SF11，依次类推
    LoRaMacMibSetRequestConfirm( &mibReq );
    // …………  
    //其他参数可参考上面的设置方法
}

LoRaMacStatus_t LoRaMacMibSetRequestConfirm( MibRequestConfirm_t* mibSet )
{
    LoRaMacStatus_t status = LORAMAC_STATUS_OK;
    ChanMaskSetParams_t chanMaskSet;
    VerifyParams_t verify;

    if( mibSet == NULL )
    {
        return LORAMAC_STATUS_PARAMETER_INVALID;
    }
    if( ( MacCtx.MacState & LORAMAC_TX_RUNNING ) == LORAMAC_TX_RUNNING )
    {
        return LORAMAC_STATUS_BUSY;
    }
    switch( mibSet->Type )
    {
        case MIB_DEVICE_CLASS:
        {
            status = SwitchClass( mibSet->Param.Class );
            break;
        }
        case MIB_NETWORK_ACTIVATION:
        {
            if( mibSet->Param.NetworkActivation != ACTIVATION_TYPE_OTAA  )
            {
                MacCtx.NvmCtx->NetworkActivation = mibSet->Param.NetworkActivation;
            }
            else
            {   // Do not allow to set ACTIVATION_TYPE_OTAA since the MAC will set it automatically after a successful join process.
                status = LORAMAC_STATUS_PARAMETER_INVALID;
            }
            break;
        }
        case MIB_DEV_EUI:
        {
            if( SecureElementSetDevEui( mibSet->Param.DevEui ) != SECURE_ELEMENT_SUCCESS )
            {
                status = LORAMAC_STATUS_PARAMETER_INVALID;
            }
            break;
        }
        case MIB_JOIN_EUI:
        {
            if( SecureElementSetJoinEui( mibSet->Param.JoinEui ) != SECURE_ELEMENT_SUCCESS )
            {
                status = LORAMAC_STATUS_PARAMETER_INVALID;
            }
            break;
        }
        case MIB_ADR:
        {
            MacCtx.NvmCtx->AdrCtrlOn = mibSet->Param.AdrEnable;
            break;
        }
…………
}