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CC1310丢包率确认

lin jqi
Expert 1173 points
Other Parts Discussed in Thread: CC1310

工程师你好！

CC1310，一块板一直发，一块板一直收；

error_rate的基础上进行修改；

433MHz，4fsk, 1Mbps;

射频线缆直连的情况下，丢包率为1/100000，请问是否正常呢？

每次发送的间隔比较长为30ms，请问丢包的原因是什么呢？有无优化的办法？

谢谢！

  • 0
    Expert 1173 points
    更正一下：丢包率应该是0.3%。谢谢！
  • 0 回复 lin jqi
    TI__Guru* 82220 points
    这个是测试的，正式发布版中没有4fsk, 1Mbps，手册中没有具体的数据
    之前发过915M的，你可以参考下
    500kbps GFSK -97 1% BER, 1243 RX BW, 175KHz deviation
    1Mbps BLE PHY -95 1% BER, 250KHz deviation, 2GFSK
    1.5Mbps 4FSK -94 1% BER, 4FSK, Outer deviation 450KHz
    4Mbps 8FSK -82 1% BER, 8FSK
  • 0 回复 Kevin Qiu1
    Expert 1173 points

    感谢回复！

    看来误包率是接近的；但提到的1.5Mbps 4FSk总是不能达到，1Mbps倒是可以的，两组参数如下，麻烦看看1.5Mbps的是否有错，谢谢！

    #if 0 // 1Mbps OK
    rfc_CMD_PROP_RADIO_DIV_SETUP_t RF_cmdPropRadioDivSetup_4fsk =
    {
    .commandNo = 0x3807,
    .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,
    .modulation.modType = 0x1,
    .modulation.deviation = 400, // 250Hz/steps
    .symbolRate.preScale = 0xF,
    .symbolRate.rateWord = 327680, //500k(1Mbps): 327680; 750k(1.5Mbps): 491520 NG;
    .rxBw = 47, //47,
    .preamConf.nPreamBytes = 0x6,
    .preamConf.preamMode = 0x1,
    .formatConf.nSwBits = 0x20,
    .formatConf.bBitReversal = 0x0,
    .formatConf.bMsbFirst = 0x1,
    .formatConf.fecMode = 9, // 4-ary
    .formatConf.whitenMode = 0x0,
    .config.frontEndMode = 0x0,
    .config.biasMode = 0x1,
    .config.bNoFsPowerUp = 0x0,
    .txPower = 0xA73F, //0xA73F, // default: 0x3f
    .pRegOverride = pOverrides_hs_4fsk,
    .centerFreq = 433,
    .intFreq = 0x0A66,
    .loDivider = 0x0A,
    };
    #endif

    // for 1.5Mbps
    rfc_CMD_PROP_RADIO_DIV_SETUP_t RF_cmdPropRadioDivSetup_4fsk =
    {
    .commandNo = 0x3807,
    .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,
    .modulation.modType = 0x1,
    .modulation.deviation = 1800, // 250Hz/steps 450K: 1800;
    .symbolRate.preScale = 0xF,
    .symbolRate.rateWord = 491520, // 500k(1Mbps): 327680; 750k(1.5Mbps): 491520 NG;
    .rxBw = 47, //47,
    .preamConf.nPreamBytes = 0x6,
    .preamConf.preamMode = 0x1,
    .formatConf.nSwBits = 0x20,
    .formatConf.bBitReversal = 0x0,
    .formatConf.bMsbFirst = 0x1,
    .formatConf.fecMode = 9, // 4-ary
    .formatConf.whitenMode = 0x0,
    .config.frontEndMode = 0x0,
    .config.biasMode = 0x1,
    .config.bNoFsPowerUp = 0x0,
    .txPower = 0xA73F, //0xA73F, // default: 0x3f
    .pRegOverride = pOverrides_hs_4fsk,
    .centerFreq = 433,
    .intFreq = 0x0A66,
    .loDivider = 0x0A,
    };

  • 0 回复 lin jqi
    TI__Guru* 82220 points

    433M 1.5Mbps偏差比较大，建议用1Mbps：e2e.ti.com/.../2375692

  • 0 回复 Kevin Qiu1
    Expert 1173 points

    好的，谢谢！