Fixed NVM uint32 issue

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Viewing 10 posts - 1 through 10 (of 10 total)
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  • September 27, 2022 at 9:27 pm #5878

    Matt
    Participant
    • Poltronics LTD

    Hi all,

    We are having an issue trying to use the fixed NVM for odometer functionality. We are using the following blocks and logic which I will attach.

    Does this look correct?

    What we are looking to do is have a uint32 value that we write to and read from. However this value from the read seems to be 0xEC600000 and we cannot change it.

    Would it be possible for you to show me an example of how reading and writing a fixed uint32 to NVM would be done?

    Thank you!

    ff3629bc-55d6-4683-9c88-5a382a31960c FF3629BC-55D6-4683-9C88-5A382A31960C 14ce68ad-3a65-4313-8573-4e93203dac5c 14CE68AD-3A65-4313-8573-4E93203DAC5C
    September 28, 2022 at 5:41 pm #6010

    Terry Xu
    Keymaster
    • Ecotron

    Hi there,

    Please refer to this recommendation,

    first, define a u32 fix NVM,

    1-11 1-2
    September 28, 2022 at 5:45 pm #6013

    Terry Xu
    Keymaster
    • Ecotron

    then, use Read Fixed NVM module and Write Fixed NVM to read and write, here are examples to use measurement to read NVM data.

    2-12 2-1
    September 28, 2022 at 5:47 pm #6016

    Terry Xu
    Keymaster
    • Ecotron

    The read NVM data, +1, is written to the NVM.

    NVM data saving, we recommend using the power management module we provide, “Power Management Example”. Inside that, we have NVM save logic.

    Please let me know if you have more questions.

    Best.

    3-9 3-1
    October 2, 2022 at 5:01 pm #6366

    Matt
    Participant
    • Poltronics LTD

    Hi, I am not sure how this is different to what I have already or am I missing something?

    Also, do I need the Fnvm_uint32 fixed definition to have a sized of 4? can I just have it set as 1 and read/write a uint32 value rather than splitting it into individual bytes?

    Thanks!

    October 12, 2022 at 4:04 pm #7184

    Terry Xu
    Keymaster
    • Ecotron

    For that, we might need your model screenshot about details to identify, you can share this webpage link in your email and talk to your Ecotron contact by email if you don’t want to disclose something in forum and we can go from there.

    best,

    Terry

    October 14, 2022 at 9:04 am #7277

    Matt
    Participant
    • Poltronics LTD

    Hi, what else do you need? I put a screenshot in my original post. Happy to send more information if needed

    October 17, 2022 at 6:31 am #7382

    Terry Xu
    Keymaster
    • Ecotron

    Incorrect NVM data read may be a logic problem in the application layer. You can add some observations after reading NVM data to verify the logic step.
    The size and data type of a fixed NVM definition are defined in the m file. You can edit your own m file to define NVM data.

    Please let me know if further questions,

    Best,
    Terry

    February 18, 2023 at 9:30 pm #22294

    Matt
    Participant
    • Poltronics LTD

    Hello, this appears to increment the value by 4 instead of 1 for some reason? Am I missing something obvious? Thank you

    February 28, 2023 at 5:56 pm #22450

    Terry Xu
    Keymaster
    • Ecotron

    Let me look into it and get back to you shortly,

    Thanks,

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