Azure Sphere custom device noise issue

95504669 521 Reputation points
2023-07-26T11:41:59.5133333+00:00

Hi, We use Azure sphere module in our custom device. Azure has to send some hex values by UART to another device after restart. But even if azure sends proper values, the other device receives extra unwanted hex values along with default values only when azure restarts. When the Azure has to send hex values without restart, there is no unwanted values received by other device.

Have tested using the waveform app with Azure Tx. Unwanted hex values are observed along with needed hex values. Please let me know how to fix this issue. Thank you.

Azure Sphere
Azure Sphere
An Azure internet of things security solution including hardware, operating system, and cloud components.
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  1. 95504669 521 Reputation points
    2023-08-21T10:12:17.5+00:00

    Yes. We have the Tx Rx pin taken our custom board. We were using jumpers to connect Azure to external device. Once we soldered the TX Rx, it worked. Thank you.

    1 person found this answer helpful.
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  2. LeelaRajeshSayana-MSFT 12,111 Reputation points
    2023-08-23T14:43:20.67+00:00

    Hi @95504669 I'm glad that you were able to resolve your issue and thank you for posting your solution so that others experiencing the same thing can easily reference this! Since the Microsoft Q&A community has a policy that "The question author cannot accept their own answer. They can only accept answers by others ", I'll repost your solution in case you'd like to accept the answer .

    Issue:

    After embedding Azure Sphere module in our custom device, the device receives extra unwanted hex values along with default values only when azure restarts.

    Solution:

    We have the Tx Rx pin taken our custom board. We were using jumpers to connect Azure to external device. Once we soldered the TX Rx, it worked

    If I missed anything please let me know and I'd be happy to add it to my answer, or feel free to comment below with any additional information.

    I hope this helps!

    If you have any other questions, please let me know. Thank you again for your time and patience throughout this issue.

    1 person found this answer helpful.
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