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CC1120 RSSI update cycle time

CC1120 RSSI update cycle time

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Tatsuya Kakehashi
Posted by Tatsuya Kakehashi
on May 28 2012 01:22 AM
Prodigy100 points

I would like to know the RSSI update cycle time of CC1120. In addition, is this programable? 

Thank you and regards,

Tatasuya Kakehashi

cc1120
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  • TER
    Posted by TER
    on May 28 2012 03:11 AM
    Mastermind21450 points

    This is covered in section 5.8 in the userguide.

    --
    PS. Thank you for clicking  Verify Answer  if this answered your question!

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  • Shishir Shah
    Posted by Shishir Shah
    on Jul 20 2012 02:36 AM
    Prodigy145 points

    Hi TER,

    I am also getting problem while getting right RSSI value. I am programming using LabView. My procedure to get RSSI value is as follows:

    1. I send 0x34 strobe to start RX mode.

    2. I send in series: 0x2F OR 0x80, 0x71, 0x0 to get RSSI[11:4]

    3. then I send in series: 0x2F OR 0x80,0x72,0x0 to get RSSI[3:0]

    Now I am getting integer value 67 from RSSI[3:0] till my input signal strength is from -120 db to -40 db. For the value below -40 db, I get integer value 71 on the same register.

    I am getting integer values ranging 229-260 from RSSI[11:4] till my input signal strength is from -120 db to -40 db. For the value below -40 db, I get integer values ranging 0-10 on the same register.

    I also do not understand the calculation about how 0x200 is interpreted as 32 dbm and how 0x3A0 as -70 dbm.

    Please help me regarding this problem.

    Thanking you,

    BR

    Shishir

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