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CC1310: Wide-Band Long Range Mode (LRM) on CC1310

Zebryk
Expert 1240 points
Part Number: CC1310


Hello,

Has there been an update to the preliminary App-Note "Wide-Band Long Range Mode (LRM) on CC1310" from May 2016?

Also, when employing the Wide Band LRM (DSSS), what value to select for Richard Wallace's Range Estimation for Indoor and Outdoor Rev1_17.xlsm?

From the preliminary data sheet, this looks like -106.8dBm?

Peace,

  • 0
    TI__Genius 9705 points
    Hello Jay,

    Sensitivity at 62.5Kbps datarate(500kbps symbol rate) is -106.5dBm and this can be used for rnage estimation. There have been some minor updated to the App note to update information for Rev B version of CC1310 and to reflect the names of patches that are released in SDK for this mode. Please find the relevant information below:

    Following is the mode setting and list of overrides needed for this mode.
    RF_Mode RF_prop =
    {
    .rfMode = RF_MODE_PROPRIETARY,
    .cpePatchFxn = &enterWb_dsssCpePatch,
    .mcePatchFxn = &rf_patch_mce_wb_dsss,
    .rfePatchFxn = &rf_patch_rfe_wb_dsss,
    };
    In addition to the overrides for 50kbps GFSK mode from SmartRF studio,
    following overrides have to be added or edited for WB-DSSS mode:
    MCE_RFE_OVERRIDE(1, 0, 0, 1, 0, 0),
    (uint32_t)0x00FB88A3, // Rx: Set RSSI offset
    // Tx: Configure PA ramping setting, Rx: Set AGC reference level
    HW_REG_OVERRIDE(0x6088,0x1F0E),
    HW_REG_OVERRIDE(0x608C,0x3F13), //Configure PA ramping setting
    HW_REG_OVERRIDE(0x52AC,0x0B03), //DSSS = 4, K=4 data rate 62.5kbps
    HW_REG_OVERRIDE(0x5108,0x0048), //Sync Threshold
    (uint32_t)0xFFFFFFFF,

    Regards,