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CC1352P: SmartRF Studio Users Info/Guide.. using the 20dBm PA..

Part Number: CC1352P

Hi Team SimpleLink,

I'm having trouble getting info WRT SmartRF Studio settings for the CC1352P.  The most recent version of SmartRF Studio (2.15.0) has added some new settings for "pOverridesTx20" see below.. How do i get info about this?

NEW SETTINGS

// Overrides for CMD_RADIO_SETUP_PA

uint32_t pOverridesTx20[] =

{

    // The TX Power element should always be the first in the list

    TX20_POWER_OVERRIDE(0x003F75F5),

    // The ANADIV radio parameter based on the LO divider (0) and front-end (0) settings

    (uint32_t)0x01C20703,

    // override_tx20_settings.xml

    // Set RTIM offset to 3 for high power PA

    (uint32_t)0x00038783,

    // Set synth mux for high power PA

    (uint32_t)0x010206C3,

    // Set TXRX pin to 0 in RX/TX and high impedance in idle.

    HW_REG_OVERRIDE(0x60A8,0x0001),

    (uint32_t)0xFFFFFFFF

};

OLD SETTINGS

// Overrides for CMD_RADIO_SETUP_PA

uint32_t pOverridesTx20[] =

{

    // The TX Power element should always be the first in the list

    TX20_POWER_OVERRIDE(0x003F5BB8),

    // The ANADIV radio parameter based on the LO divider (0) and front-end (0) settings

    (uint32_t)0x01C20703,

    (uint32_t)0xFFFFFFFF

};

The SmartRF studio users guides from (http://www.ti.com/tool/SMARTRFTM-STUDIO ) are dated 2010/2011.. see snip below..

Seems the latest SmartRF Studio docs are on dev.ti.com & software-dl.ti.com as follows..

http://dev.ti.com/tirex/explore/node?node=ALEjJyw2VC6PffeuTKdimw__FUz-xrs__LATEST

http://dev.ti.com/tirex/explore/node?node=AN9bBqYHH.EQCAhS4Vkl5w__FUz-xrs__LATEST 

http://software-dl.ti.com/lprf/smartrftm_studio/docs/help/html/srfstudio.html

And maybe the info I need is supposed to be here (http://dev.ti.com/tirex/content/simplelink_cc13x2_26x2_sdk_2_40_00_81/docs/proprietary-rf/proprietary-rf-users-guide/proprietary-rf/tx-power.html ) but I cannot find it..

Where can I get info about these new/added settings & setting up the CC1352P WRT " CMD_RADIO_SETUP_PA uint32_t pOverridesTx20[] ="?

Thanks, Merril

  • Hi Merril,

    To condense your post a bit, what you are asking is really:

    What do these 3 new overrides for the 20 dBm PA do:

    // Set RTIM offset to 3 for high power PA
    (uint32_t)0x00038783,
    // Set synth mux for high power PA
    (uint32_t)0x010206C3,
    // Set TXRX pin to 0 in RX/TX and high impedance in idle.
    HW_REG_OVERRIDE(0x60A8,0x0001),

    right?

    These are not directly related to SmartRF Studio itself, Studio is just the tool used to provide the settings. 

    The last override resolves a potential instability issue when using the PA at low temperatures. This issue was described in the release notes for SDK 3.10.01 (which was the first production SDK for CC1352P).

    I will check the other two and come back to you.

    Regards,
    Fredrik

  • Hi Merril,

    I compared the overrides between SmartRF Studio 2.13.1, 2.14 and 2.15 and the only override added after 2.13.1 was for the TXRX-pin which I commented on in my earlier post. 

    It looks like you are comparing overrides for sub-1 GHz and 2.4 GHz.

    Regards,
    Fredrik

  • Oops. You are right I am using the wrong file.  Thanks Merril for putting up with a stupid customer.