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CCS/CC2652P: How to use 10dBm mode on CC2652P?

yingtao jia
Expert 1280 points
Part Number: CC2652P
Other Parts Discussed in Thread: CC1352P, Z-STACK, SYSCONFIG

Tool/software: Code Composer Studio

Hi, I use CC2652P, SimpleLink SDKv4.20. My application is based on CC1352P_2_LAUNCHXL ti154stack sensor_2_4g.

I have a question about 15.4-2.4G tx power.

There is standard tx mode and 20dBm high power PA mode on CC1352P datasheet as below:

And I can set init tx power in syscfg from -20dBm to 5dBm and from 14dBm to 20dBm as below:

So far, it is normal.

But, there is 10dBm high power PA mode besides standard tx mode and 20dBm high power PA mode on CC2652P as below:

It seems that CC2652P has one more tx power mode than CC1352P —— 10dBm mode.

So how to set this 10dBm mode in my syscfg? After all my application is based on CC1352P_2 example and CC1352P has no 10dBm mode.

  • 0
    TI__Guru**** 210987 points

    Hi yingtao,

    This is described in the Power Configuration section of the Z-Stack User's Guide:

    The allowable TX power range with High PA enabled (programmmable by up to 6 dB) is dependent on the hardware circuitry designed for the 2.4 GHz band. The LAUNCHXL-CC1352P-2 maximizes output from 14 to 20 dBm. By contrast, the LAUNCHXL-CC1352P-4 is optimized to support power levels from 6 to 10 dBm. These considerations are accounted for inside SysConfig depending on the hardware option selected in RF DESIGN → RF Design.


    Regards,
    Ryan

  • 0 in reply to Ryan Brown1
    Expert 1280 points

    Can I use 6-10dBm and 14-20dBm both?

    In other words, can I change tx power among these value in program runtime?

    6, 7, 8, 9, 10, 14, 15, 16, 17, 18, 19, 20

    Or, I can only use 6-10dBm or 14-20dBm but can not use them both in runtime?

  • 0 in reply to yingtao jia
    TI__Guru**** 210987 points

    You will not be able to use both ranges at runtime, only one or the other is allowed by the HPA.  

    Regards,
    Ryan