关于CC1310接收错误EasyLink_Status_Rx_Error

Hi,

    大家好，目前在应用rfWsnConcentrator过程中发现rxDoneCallback中程序会隔一段时间显示status = EasyLink_Status_Rx_Error，

 if (EasyLink_cmdPropRxAdv.status == PROP_DONE_OK)//RF_cmdPropRx EasyLink_cmdPropRxAdv{//Check that data entry status indicates it is finished withif (pDataEntry->status != DATA_ENTRY_FINISHED)//错误地点{status = EasyLink_Status_Rx_Error;}else if ( (rxStatistics.nRxOk == 1) ||//or filer disabled and ignore due to addr mistmatch((EasyLink_cmdPropRxAdv.pktConf.filterOp == 1) &&//RF_cmdPropRx EasyLink_cmdPropRxAdv(rxStatistics.nRxIgnored == 1)) ){//copy length from pDataEntryrxPacket.len = *(uint8_t*)(&pDataEntry->data) - addrSize;//copy address from packet payload (as it is not in hdr)memcpy(&rxPacket.dstAddr, (&pDataEntry->data + 1), addrSize);//copy payloadmemcpy(&rxPacket.payload, (&pDataEntry->data + 1 + addrSize), rxPacket.len);rxPacket.rssi = rxStatistics.lastRssi;rxPacket.absTime = rxStatistics.timeStamp;status = EasyLink_Status_Success;}else if ( rxStatistics.nRxBufFull == 1){status = EasyLink_Status_Rx_Buffer_Error;}else if ( rxStatistics.nRxStopped == 1){status = EasyLink_Status_Aborted;}else{status = EasyLink_Status_Rx_Error;}}else if ( EasyLink_cmdPropRxAdv.status == PROP_DONE_RXTIMEOUT){status = EasyLink_Status_Rx_Timeout;}else{status = EasyLink_Status_Rx_Error;//返回接收错误}

其中EasyLink_cmdPropRxAdv.status = 0x3406，//Operation ended after receiving packet with CRC error，rxStatistics.nRxOk=0,rxStatistics.nRxOk =0,rxStatistics.nRxIgnored = 0，查询资料说可能是接收数据较多阻塞造成的。目前node程序应用实时采集数据，300ms发送一次（数据长度96字节）。另外不能进行延时处理，否则接收端会有数据延时，减少数据量但发送时间会缩短，该问题也会出现。

请问

    1.该错误是如何造成的？

    2.有什么思路进行解决该问题呢？

谢谢！

Alvin Chen：

你是否有太多设备在你的网络中，如果你只是测试可以适当的减小数据量，应会有所改善。
你可以在发送这个错误时调用 Easylink_transmitCcaAsync()
这个通常是拥堵造成的，你可以参考rfEasylinkListenBeforeTalk使用 CcaAsync API：Easylink_transmitCcaAsync

Mings Liu：

回复 Alvin Chen:

非常感谢Alvin Chen,

    设备加入的不多，测试在两个node加入就会出现阻塞问题。

    我查看了LBT功能，该功能是传输任何数据包之前评估通信通道，radio将首先进入RX模式来评估信道，如果它空闲5毫秒，它将继续传输一个数据包。按照说明应该是在concentrator加入该功能，node端也需要加入吗？

    另外，请问LBT支持433MHz吗？

谢谢！

Alvin Chen：

回复 Mings Liu:

都需要加入的，支持的。

Mings Liu：

回复 Alvin Chen:

Hi Alvin Chen,

    根据rfEasyLinkListenBeforeTalk对rfwsnnode进行应用EasyLink_transmitCcaAsync，在ccaDoneCallback中出现了pCmd->status = 0x340A，///< Carrier sense operation ended because of timeout with csConf.timeoutRes = 0。

修改如下：

/* Set destination address in EasyLink API */currentRadioOperation.easyLinkTxPacket.dstAddr[0] = RADIO_CONCENTRATOR_ADDRESS;/* Copy ADC packet to payload* Note that the EasyLink API will implcitily both add the length byte and the destination address byte. */currentRadioOperation.easyLinkTxPacket.payload[0] = sensorPacket->header.sourceAddress;currentRadioOperation.easyLinkTxPacket.payload[1] = sensorPacket->header.packetType;memcpy((currentRadioOperation.easyLinkTxPacket.payload+2), ((uint8_t*)&sensorPacket->adcValue), sizeof(sensorPacket->adcValue));currentRadioOperation.easyLinkTxPacket.len = sizeof(struct DualModeSensorPacket);//sensorPacket.adcValue/* Setup retries */currentRadioOperation.maxNumberOfRetries = maxNumberOfRetries;currentRadioOperation.ackTimeoutMs = ackTimeoutMs;currentRadioOperation.retriesDone = 0;EasyLink_setCtrl(EasyLink_Ctrl_AsyncRx_TimeOut, EasyLink_ms_To_RadioTime(ackTimeoutMs));if(EasyLink_transmitCcaAsync(&currentRadioOperation.easyLinkTxPacket, lbtDoneCb) != EasyLink_Status_Success){System_abort("EasyLink_transmit failed");}/* Wait forever for TX to complete */Semaphore_pend(lbtDoneSem, BIOS_WAIT_FOREVER);void lbtDoneCb(EasyLink_Status status)
{if (status == EasyLink_Status_Success){/* Enter RX */if (EasyLink_receiveAsync(rxDoneCallback, 0) != EasyLink_Status_Success){}}else if (status == EasyLink_Status_Busy_Error){Event_post(radioOperationEventHandle, RADIO_EVENT_ACK_TIMEOUT);}else{Event_post(radioOperationEventHandle, RADIO_EVENT_ACK_TIMEOUT);}Semaphore_post(lbtDoneSem);}

    因为超时造成载波监测终止，这个是哪个参数影响的呢？

谢谢！

Alvin Chen：

回复 Mings Liu:

没有什么太多经验关于这个，你以尝试使用CMD_PROP_CS
e2e.ti.com/…/777012