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CCS/CC1352R: The selected RF TX power has not been characterized with Force VDDR enabled - Sysconfig

Derek Roberson
Prodigy 220 points
Part Number: CC1352R


Tool/software: Code Composer Studio

Hello,

I am using Code Composer Studio 10.0.0.00010 and I am receiving the error in the screenshot below when I select any TX power other than 14 dBm. I have tested -20 to 12.5 dBm and receive the same error.

I looked around on the forums and came across this thread with a similar issue: e2e.ti.com/.../888801

In the above post, the users reference a "High PA" checkbox. I don't see this checkbox anywhere.

Question: How do I select a power other than 14 dBm without receiving this wanring?

Thanks!

  • 0
    TI__Guru**** 317180 points

    Hi,

    From your post it's not clear if you want to use 14 dBm or not. To be able to reach +14 dBm, VDDR has to be set to 1.95 V. This is done in syscfg by ticking the "Force VDDR" box. The full PA table (from -20 to 12.5 dBm) is charactericed with VDDR = 1.65 V. You can use VDDR = 1.95 V and the settings for the full PA table but then you will get slightly different output power than indicated. That is why you get a warning. Meaning that if you want to use 12.5 dBm of lower, the "Force VDDR" box should not be ticked. 

  • 0 in reply to TER
    Prodigy 220 points

    Hello,

    Thanks for your reply. To be clear, I would like to set the TX power to 12 dBm. When I attempt to do so, I receive the aforementioned warning. If I uncheck the "Force VDDR" box and set the TX power to 12 dBm, I receive the following warning:

    Question: Why is it telling me "Force VDDR" should be enabled when the TX Power is set to 12 dBm?

    Thanks

  • 0 in reply to Derek Roberson
    TI__Guru**** 317180 points

    Which example in which SDK are you using?