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CCS/CC2652RB: Getting Error while programming XCC2652RBRGZR MCU using launchpad

Akansha Verma
Expert 1220 points
Part Number: CC2652RB
Other Parts Discussed in Thread: LAUNCHXL-CC26X2R1,

Tool/software: Code Composer Studio

Hi,

I am working on LAUNCHXL- CC26X2R1 and wants to program XCC2652RBRGZR MCU using my launch pad using JTAG pins on launch pad.

Is it possible to program XCC2652RBRGZR using LAUNCHXL- CC26X2R1 containing CC2652R1FRGZ MCU.

If it possible, then where i need to make changes in code?

Because i am getting an error mentioned below:

  • 0
    TI__Guru 57865 points

    Hi Akansha,

    What you describe is fully possible. Could you please share a photo of your setup?

  • 0 in reply to J Lindh
    Expert 1220 points

    Hi Sir,

    Schematic of setup is attached below:

    Here i am using JTAG output from my LAUNCHXL-CC26X2R1 to program my beacon containing CC2652RB1FRGZ MCU.

    I am programming this MCU using Simple_central as (ti\simplelink_cc13x2_26x2_sdk_3_20_00_68\examples\rtos\CC2652RB_LAUNCHXL\ble5stack\simple_central )

  • 0 in reply to Akansha Verma
    TI__Guru** 106705 points

    Hi Akansha,

    The connections look correct, although with a few more signals than strictly needed. 

    Have you verified that the voltages on your board are correct? Are all VDDS pins at 3.3 V? Are both VDDR pins at 1.7 V? Have you double checked the JTAG signal connections?

    From the photo it is clear that you are not following our reference design and design guidelines. For example, the DCDC components are not placed very well, and the RF matching looks completely off. I would highly recommend that you do a new version of the PCB and then follow the guidelines here: www.ti.com/lit/pdf/swra640

    By the way, why are you using a 48 MHz crystal with the CC2652RB?

    Regards,
    Fredrik

  • 0 in reply to Fredrik K
    Expert 1220 points

    Hi,

    I checked all the supplies, Now the code is downloading in the board.

    But when i download the code of simple_central in my beacon module which i designed using JTAG connection, then i am not getting anything on terminal putty.

    On downloading the simple_peripheral application example also i am not getting anything on putty but it is detectable on BLE scanner as an advertiser.

    So how can i identify whether my board is behaving as a central or not?

    Please suggest something to proceed

    Thanks 

    Akansha

  • 0 in reply to Akansha Verma
    TI__Guru** 106705 points

    Are you sure the UART lines are not crossed? Are they connected to the same IOs as on the LaunchPad?

    As mentioned before, there are several issues with your layout, so I would highly recommend a re-design.

    And again, out of curiosity, why are you using a 48 MHz crystal with CC2652RB?

  • 0 in reply to Fredrik K
    Expert 1220 points

    Hi,

    I have checked the connections, Now it is working.

    Thank you for your suggestions, i will modify the design in next version.

    I have made the PCB according to CC26X2R1 MCU and got the other sample of MCU, I will remove the crystal.

    Thanks and Regards

    Akansha

  • 0 in reply to Akansha Verma
    TI__Guru** 106705 points

    Good to hear!

    There is no harm in using a crystal with CC2652RB, but it sort of takes away the point with that device.