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CC2652R外接CC2592PA，怎么设置修改CCA的门限值？

Aries Lord
Mastermind 6915 points
Other Parts Discussed in Thread: CC2652R, CC2592

CC2652R外接CC2592PA，PA，LNA和HGM口以及配置好，可以正常工作。但是网络建立后，在发送广播命令时，出现ZMacChannelAccessFailure的概率大于未加PA的芯片。分析是因为噪声被LNA放大导致，如何设置CCA的灵敏度？

  • 0
    TI__Guru 56646 points
    连续四次 CSMA-CA failures才会触发ZMacChannelAccessFailure。据我所以这个灵敏度不可以修改，你可以去英文那个问一下AE。
  • 0 回复 Alvin Chen
    TI__Guru 56646 points
    唯一的信息是如下：
    /* IEEE RX Command */
    rfc_CMD_IEEE_RX_t RF_cmdIEEERx =
    {
    .commandNo = CMD_IEEE_RX,
    .status = 0x0000,
    .pNextOp = 0, /*INSERT APPLICABLE POINTER: (uint8_t*)&xxx */
    .startTime = 0x00000000,
    .startTrigger.triggerType = 0x0,
    .startTrigger.bEnaCmd = 0x0,
    .startTrigger.triggerNo = 0x0,
    .startTrigger.pastTrig = 0x0,
    .condition.rule = 0x1,
    .condition.nSkip = 0x0,
    .channel = 0x00,
    .rxConfig.bAutoFlushCrc = 0x1,
    .rxConfig.bAutoFlushIgn = 0x0,
    .rxConfig.bIncludePhyHdr = 0x1,
    .rxConfig.bIncludeCrc = 0x0,
    .rxConfig.bAppendRssi = 0x1,
    .rxConfig.bAppendCorrCrc = 0x0,
    .rxConfig.bAppendSrcInd = 0x0,
    .rxConfig.bAppendTimestamp = 0x1,
    .pRxQ = 0x00000000,
    .pOutput = 0x00000000,
    .frameFiltOpt.frameFiltEn = 0x0,
    .frameFiltOpt.frameFiltStop = 0x0,
    .frameFiltOpt.autoAckEn = 0x0,
    .frameFiltOpt.slottedAckEn = 0x0,
    .frameFiltOpt.autoPendEn = 0x0,
    .frameFiltOpt.defaultPend = 0x0,
    .frameFiltOpt.bPendDataReqOnly = 0x0,
    .frameFiltOpt.bPanCoord = 0x0,
    .frameFiltOpt.maxFrameVersion = 0x3,
    .frameFiltOpt.fcfReservedMask = 0x0,
    .frameFiltOpt.modifyFtFilter = 0x0,
    .frameFiltOpt.bStrictLenFilter = 0x0,
    .frameTypes.bAcceptFt0Beacon = 0x1,
    .frameTypes.bAcceptFt1Data = 0x1,
    .frameTypes.bAcceptFt2Ack = 0x1,
    .frameTypes.bAcceptFt3MacCmd = 0x1,
    .frameTypes.bAcceptFt4Reserved = 0x1,
    .frameTypes.bAcceptFt5Reserved = 0x1,
    .frameTypes.bAcceptFt6Reserved = 0x1,
    .frameTypes.bAcceptFt7Reserved = 0x1,
    .ccaOpt.ccaEnEnergy = 0x0,
    .ccaOpt.ccaEnCorr = 0x0,
    .ccaOpt.ccaEnSync = 0x0,
    .ccaOpt.ccaCorrOp = 0x1,
    .ccaOpt.ccaSyncOp = 0x1,
    .ccaOpt.ccaCorrThr = 0x0,
    .ccaRssiThr = 0x64,
    .__dummy0 = 0x0,
    .numExtEntries = 0x00,
    .numShortEntries = 0x00,
    .pExtEntryList = 0x00000000,
    .pShortEntryList = 0x00000000,
    .localExtAddr = 0x0000000000000000,
    .localShortAddr = 0x0000,
    .localPanID = 0x0000,
    .__dummy1 = 0x0000,
    .__dummy2 = 0x00,
    .endTrigger.triggerType = 0x1,
    .endTrigger.bEnaCmd = 0x0,
    .endTrigger.triggerNo = 0x0,
    .endTrigger.pastTrig = 0x0,
    .endTime = 0x00000000,
    };

    rfc_CMD_IEEE_CSMA_t RF_cmdIEEECsma =
    {
    .commandNo = CMD_IEEE_CSMA,
    .status = 0x0000,
    .pNextOp = (rfc_radioOp_t *)&RF_cmdIEEETx,
    .startTime = 0,
    .startTrigger.triggerType = 0x0,
    .startTrigger.bEnaCmd = 0x0,
    .startTrigger.triggerNo = 0x0,
    .startTrigger.pastTrig = 0x1, // command can be delayed and appended to the end of the rf_cmdQ.
    .condition.rule = COND_STOP_ON_FALSE,
    .condition.nSkip = 0,
    .randomState = 0,
    .macMaxBE = 5,
    .macMaxCSMABackoffs = 4,
    .csmaConfig.initCW = 1,
    .csmaConfig.bSlotted = 0,
    .csmaConfig.rxOffMode = 0,
    .NB = 0,
    .BE = 3,
    .remainingPeriods = 0,
    .lastRssi = 0,
    .endTrigger.triggerType = 0x1,
    .endTrigger.bEnaCmd = 0x0,
    .endTrigger.triggerNo = 0x0,
    .endTrigger.pastTrig = 0x0,
    .lastTimeStamp = 0,
    .endTime = 0,
    };
  • 0 回复 Alvin Chen
    Mastermind 6915 points
    加了CC2592后，接收灵敏度提高，以前一些环境噪声也会被LNA放大