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CC1110-CC1111: I am facing issues in RF connectivity

Part Number: CC1110-CC1111

Dear Team

I am writing to seek assistance regarding an issue we're encountering with the RF connectivity on the CC1110F32RHHR microcontroller.

We've been experiencing intermittent problems with RF connectivity, where the RF functionality works inconsistently across different PCBs. At times, the RF works as expected, while at other times, it fails to establish connectivity. This erratic behavior has posed significant challenges in ensuring the reliability of our products.

We've thoroughly reviewed our hardware setup, including checking all connections and ensuring adherence to the CC1110F32RHHR datasheet and application notes. However, despite our efforts, the issue persists.

Given the varying behavior across different PCBs, we suspect that there may be underlying factors contributing to this inconsistency. We've explored potential causes such as RF circuit design, antenna placement, firmware configuration, and environmental factors, but have yet to pinpoint the exact root cause of the problem.

To address this issue effectively, we would greatly appreciate your guidance and expertise in troubleshooting RF connectivity problems with the CC1110F32RHHR microcontroller. Specifically, we would like to request assistance in:

  1. Reviewing our current setup and identifying any potential areas for improvement or optimization.
  2. Providing insights or recommendations on how to diagnose and resolve the intermittent RF connectivity issues.
  3. Offering any additional resources, such as application notes or technical documentation, that may be relevant to our situation.

We understand the complexity of RF systems and the challenges associated with troubleshooting such issues. Any assistance or guidance you can provide would be immensely valuable in helping us resolve this issue and ensure the reliability of our products.

Thank you very much for your attention to this matter. We look forward to your prompt response and assistance.

 

  • Hi Rishiraj,

    as a first step, we can review your schematic and PCB layout and see if there are issues in either that could cause problems.

    You can submit the design review here: https://www.ti.com/tool/SIMPLELINK-SUB1GHZ-DESIGN-REVIEWS

    Secondly, to provide recommendations and additional resources, it would help us know the exact connectivity issues your are having. Could you provide an overview of your application, how the CC1110 is used, what is the normal operation, and details of the erratic behavior you are seeing?