• State
  • Locked Locked
  • Replies 3 replies
  • Subscribers 82 subscribers
  • Views 302 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

BOOSTXL-BUCKCONV: Clarification on Load Settings During SFRA in Section 5.3.8 of TIDU986A

Conor
Guru 14090 points

Part Number: BOOSTXL-BUCKCONV
Other Parts Discussed in Thread: SFRA

Tool/software:

Hi,

I have a question regarding Section 5.3.8 "Modify the DCL Compensator" of the TIDU986A design guide (C2000 Digital Power Buck Converter BoosterPack Design Guide).

In this section, SFRA is executed again after updating the DCL compensator coefficients. Could you please confirm whether it is necessary to set both BUCK_activeLoadEnable and BUCK_activeLoadContEnable to "1" before running SFRA in this step?

In both Section 4.3.9 (Lab 1) and Section 5.3.6 (Lab 2), these variables are explicitly set to 1 to ensure the system remains in Continuous Conduction Mode (CCM) during SFRA. However, this instruction is not clearly stated in Section 5.3.8, so I would appreciate your confirmation.

Should both variables also be set to 1 when running SFRA in Section 5.3.8?

Thank you very much for your support.

Best regards,

  • 0
    TI__Mastermind 21111 points

    Hi Conor,

    For ideal SFRA operation, yes you should re-enable the active load and continuous load if they aren't already enabled. Without this, you may not see the correct frequency response graph in the SFRA GUI. The SFRA is simply reading the data from the controller and it can't control the load of the board so that will have to be done through CCS

    Regards,

    Peter

  • 0 in reply to Peter Luong
    Guru 14090 points

    Hi Peter,

    Understood. Do I need to wait on the debug screen while SFRA is running? Or can I exit the debug screen, go to the build screen, and then run SFRA?

    Thanks,

    Conor

  • 0 in reply to Conor
    TI__Mastermind 21111 points

    Hi Conor,

    If you mean to just switch to the CCS edit view by clicking the buttons in the top right corner, then that is fine since the debug will run in the background. But if you mean to completely disconnect the debugger connection, then that will cause the program to continue running the program from RAM so you won't be able to edit any of the program variables without reconnecting back to the device.

    If you just need to access the SFRA button, in the Debug view, you can go to View on the top board and click on Project Explorer and you should still be able to access your project files from the projects pane

    Regards,

    Peter