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CC115L: SmartRG configuration for CC115L to support CC1120 Sniff mode

Other Parts Discussed in Thread: CC1120, CC115L

CC1120_sniff_LP.xml
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE configuration SYSTEM "C:/Program Files (x86)/Texas Instruments/SmartRF Tools/SmartRF Studio 7/config/xml/configdata.dtd"[]>
<dcpanelconfiguration>
    <Devicename>CC1120</Devicename>
    <Description>Saved configuration data</Description>
    <registersettings>
        <Register>
            <Name>AGC_CFG0</Name>
            <Value>0x93</Value>
        </Register>
        <Register>
            <Name>AGC_CFG1</Name>
            <Value>0x20</Value>
        </Register>
        <Register>
            <Name>AGC_CFG2</Name>
            <Value>0x3f</Value>
        </Register>
        <Register>
            <Name>AGC_CFG3</Name>
            <Value>0xd1</Value>
        </Register>
        <Register>
            <Name>AGC_CS_THR</Name>
            <Value>0x0c</Value>
        </Register>
        <Register>
            <Name>AGC_REF</Name>
            <Value>0x30</Value>
        </Register>
        <Register>
            <Name>CHAN_BW</Name>
            <Value>0x03</Value>
        </Register>
        <Register>
            <Name>DCFILT_CFG</Name>
            <Value>0x13</Value>
        </Register>
        <Register>
            <Name>DEVIATION_M</Name>
            <Value>0x26</Value>
        </Register>
        <Register>
            <Name>FIFO_CFG</Name>
            <Value>0x00</Value>
        </Register>
        <Register>
            <Name>FREQ1</Name>
            <Value>0x80</Value>
        </Register>
        <Register>
            <Name>FREQ2</Name>
            <Value>0x6c</Value>
        </Register>
        <Register>
            <Name>FREQOFF_CFG</Name>
            <Value>0x00</Value>
        </Register>
        <Register>
            <Name>FS_CAL0</Name>
            <Value>0x0e</Value>
        </Register>
        <Register>
            <Name>FS_CAL1</Name>
            <Value>0x40</Value>
        </Register>
        <Register>
            <Name>FS_CFG</Name>
            <Value>0x12</Value>
        </Register>
        <Register>
            <Name>FS_DIG0</Name>
            <Value>0x5f</Value>
        </Register>
        <Register>
            <Name>FS_DIG1</Name>
            <Value>0x00</Value>
        </Register>
        <Register>
            <Name>FS_DIVTWO</Name>
            <Value>0x03</Value>
        </Register>
        <Register>
            <Name>FS_DSM0</Name>
            <Value>0x33</Value>
        </Register>
        <Register>
            <Name>FS_DVC0</Name>
            <Value>0x17</Value>
        </Register>
        <Register>
            <Name>FS_PFD</Name>
            <Value>0x50</Value>
        </Register>
        <Register>
            <Name>FS_PRE</Name>
            <Value>0x6e</Value>
        </Register>
        <Register>
            <Name>FS_REG_DIV_CML</Name>
            <Value>0x14</Value>
        </Register>
        <Register>
            <Name>FS_SPARE</Name>
            <Value>0xac</Value>
        </Register>
        <Register>
            <Name>FS_VCO0</Name>
            <Value>0xb4</Value>
        </Register>
        <Register>
            <Name>IF_MIX_CFG</Name>
            <Value>0x00</Value>
        </Register>
        <Register>
            <Name>IOCFG0</Name>
            <Value>0x40</Value>
        </Register>
        <Register>
            <Name>IOCFG1</Name>
            <Value>0xb0</Value>
        </Register>
        <Register>
            <Name>IOCFG2</Name>
            <Value>0x06</Value>
        </Register>
        <Register>
            <Name>IOCFG3</Name>
            <Value>0xb0</Value>
        </Register>
        <Register>
            <Name>IQIC</Name>
            <Value>0x00</Value>
        </Register>
        <Register>
            <Name>MDMCFG0</Name>
            <Value>0x04</Value>
        </Register>
        <Register>
            <Name>MODCFG_DEV_E</Name>
            <Value>0x2d</Value>
        </Register>
        <Register>
            <Name>MODEM_STATUS1</Name>
            <Value>0x10</Value>
        </Register>
        <Register>
            <Name>PARTNUMBER</Name>
            <Value>0x48</Value>
        </Register>
        <Register>
            <Name>PARTVERSION</Name>
            <Value>0x21</Value>
        </Register>
        <Register>
            <Name>PA_CFG0</Name>
            <Value>0x7d</Value>
        </Register>
        <Register>
            <Name>PKT_CFG0</Name>
            <Value>0x20</Value>
        </Register>
        <Register>
            <Name>PKT_LEN</Name>
            <Value>0xff</Value>
        </Register>
        <Register>
            <Name>PREAMBLE_CFG1</Name>
            <Value>0x18</Value>
        </Register>
        <Register>
            <Name>RFEND_CFG0</Name>
            <Value>0x09</Value>
        </Register>
        <Register>
            <Name>SETTLING_CFG</Name>
            <Value>0x03</Value>
        </Register>
        <Register>
            <Name>SYMBOL_RATE2</Name>
            <Value>0x63</Value>
        </Register>
        <Register>
            <Name>SYNC_CFG1</Name>
            <Value>0x08</Value>
        </Register>
        <Register>
            <Name>TOC_CFG</Name>
            <Value>0x0a</Value>
        </Register>
        <Register>
            <Name>WOR_CFG0</Name>
            <Value>0x20</Value>
        </Register>
        <Register>
            <Name>WOR_EVENT0_LSB</Name>
            <Value>0xa4</Value>
        </Register>
        <Register>
            <Name>WOR_EVENT0_MSB</Name>
            <Value>0x03</Value>
        </Register>
        <Register>
            <Name>XOSC1</Name>
            <Value>0x03</Value>
        </Register>
        <Register>
            <Name>XOSC2</Name>
            <Value>0x00</Value>
        </Register>
        <Register>
            <Name>XOSC5</Name>
            <Value>0x0e</Value>
        </Register>
    </registersettings>
    <dcpanel>
        <Property name="m_chkRegView" role="44">2</Property>
        <Property name="m_chkRfParameters" role="44">2</Property>
        <Property name="m_tabUserMode" role="37">1</Property>
        <Property name="m_easyModeSettings" role="33">2</Property>
        <Property name="m_typicalSettings" role="33">-1</Property>
        <Property name="m_testFuncPanel" role="37">5</Property>
    </dcpanel>
    <rfparameters>
        <Property name="m_cmbFrontends" role="46">0</Property>
        <Property name="m_chkHGMorBYP" role="44">2</Property>
        <Property name="m_cmbEmRevs" role="46">-1</Property>
        <Property name="Xtal frequency" role="46">32.000000</Property>
    </rfparameters>
    <conttx>
        <Property name="m_rbtModulated" role="45">1</Property>
        <Property name="m_rbtUnmodulated" role="45">0</Property>
        <Property name="m_cmbDataFormat" role="46">-1</Property>
        <Property name="m_chkFreqSweep" role="44">0</Property>
        <Property name="m_chkChanSweep" role="44">0</Property>
    </conttx>
    <contrx>
        <Property name="m_cmbDataFormat" role="46">-1</Property>
        <Property name="m_chkAutoScroll" role="44">2</Property>
    </contrx>
    <packettx>
        <Property name="m_edtPayloadSize" role="42">30</Property>
        <Property name="m_edtPacketCount" role="42">100</Property>
        <Property name="m_edtPacketCountEsy" role="42">100</Property>
        <Property name="m_edtRandomPacketData" role="42">13 0d 89 0a 1c db ae 32 20 9a 50 ee 40 78 36 fd 12 49 32 f6 9e 7d 49 dc ad 4f 14 f2 </Property>
        <Property name="m_edtPacketData" role="42"></Property>
        <Property name="m_edtAccessAddress" role="42"></Property>
        <Property name="m_edtDeviceAddress" role="42"></Property>
        <Property name="m_chkAddSeqNbr" role="44">2</Property>
        <Property name="m_chkInfinite" role="44">0</Property>
        <Property name="m_chkInfiniteEsy" role="44">0</Property>
        <Property name="m_rbtRandom" role="45">1</Property>
        <Property name="m_rbtText" role="45">0</Property>
        <Property name="m_rbtHex" role="45">0</Property>
        <Property name="m_chkAdvanced" role="44">0</Property>
    </packettx>
    <packetrx>
        <Property name="m_edtPacketCount" role="42">100</Property>
        <Property name="m_edtPacketCountEsy" role="42">100</Property>
        <Property name="m_edtAccessAddress" role="42"></Property>
        <Property name="m_chkInfinite" role="44">0</Property>
        <Property name="m_chkInfiniteEsy" role="44">0</Property>
        <Property name="m_cmbViewFormat" role="46">0</Property>
        <Property name="m_chkSeqNbrIncluded" role="44">0</Property>
        <Property name="m_edtDumpFile" role="42"></Property>
        <Property name="m_chkAdvanced" role="44">0</Property>
        <Property name="m_chk802154gMode" role="44">0</Property>
    </packetrx>
    <commandpanel>
        <Property name="m_chkInsertLength" role="44">0</Property>
        <Property name="m_edtTxFifo" role="42"></Property>
        <Property name="m_edtRxFifo" role="42"></Property>
        <Property name="m_cmbInstrInput" role="46">-1</Property>
    </commandpanel>
    <packetRxSniffMode>
        <Property name="m_edtPreambleLength" role="42">18</Property>
        <Property name="m_edtCarrierSenseThreshold" role="42">-90</Property>
        <Property name="m_rbtRssi" role="45">1</Property>
        <Property name="m_rbtPreamble" role="45">0</Property>
    </packetRxSniffMode>
</dcpanelconfiguration>

Hello,

I have two type of device that include CC115L as transmitter and CC1120 as receiver.

I would like to get the receiver to use as much less currents as possible (transmitter currents are not important).

Having tried a few configurations in the SmartRF I saw that 4.8ksps with 9.6kbps on 4-gfsk and 18Bytes preamble length should provide 0.431 mA (which is what I require) but I was unable to create the matching CC115L configuartions that will enable packet reception.

Could you kindly create a CC115L smartRF configration that would support this?

I have attached the CC1120 configuration (for reference)

Thanks

Yaniv

  • I get 2 errors when I try to import the .xml file you attached hence I'm not fully sure which settings you have used. 

    Is 4.8 kbps, 4-GFSK a requirement?

  • Hello TER,

    Thanks for the assistance.

    I don't really care which configuration you use as long as I get low power consumption in the RX (cc1120 side)

    Kindly send me any configuartion you think is good for both RX and TX

    Thanks 

    Yaniv

  • You can lower the average power consumption by sending longer preamble. You can increase the number of preamble to lower the power consumption and you can ensure that the receiver is not in RX longer than required by using http://www.ti.com/lit/an/swra438/swra438.pdf

    If the configuration does not matter, how did you end up with 18 byte preamble and 4.8 ksps? 

  • 18Byte and 4.8 was just one test I tried.

    As meantion, I need one configuration that would work with low power in the RX.

    in the above example according to the SmartRF i can get  RX with 0.721 mA which is very good. but still I am unable to get TX from CC115L and recive it in such low power sniff configurations.

    Could you kindly send me any working RX TX xml files that work and have low power in the RX?

  • It's a lot of different configurations that could give the same or better than the current consumption you have found for the setting you have found. As an example 38.4 kbps with 120 byte preamble will give an estimated average of 0.4 mA.

    In the original post you wrote 4-GFSK but in your latest screenshot you are using 2-GFSK?