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adamShiau's avatar
adamShiau
Icon for New Contributor rankNew Contributor
2 years ago
Solved

EPCQ remaining space read and write

Hello everyone,

I am using the Cyclone IV model FPGA and utilizing a 16Mb EPCQ to store a .jic file.

If there is any remaining space in my EPCQ,

I would like to use it for storing some parameters.

Could you please guide me on how to determine the amount of available space?

Thanks!

Adam.S

Fpga Devkit

11 Replies

  • FvM's avatar
    FvM
    Icon for Super Contributor rankSuper Contributor
    2 years ago
    Hi,
    a straightforward approach would be to reserve the memory amount specified for maximal uncompressed configuration file size in device handbook, rounded up to full flash sector. Use the remaining flash blocks for other purposes.
    • adamShiau's avatar
      adamShiau
      Icon for New Contributor rankNew Contributor
      2 years ago
      Hi FvM,
      How can I determine how much space the .jic file has occupied in flash? Information like the start address and end address, for example.

      Adam. S
      • FvM's avatar
        FvM
        Icon for Super Contributor rankSuper Contributor
        2 years ago
        Hi,
        Programming File Converter optionally generates a map file with this information.
    • adamShiau's avatar
      adamShiau
      Icon for New Contributor rankNew Contributor
      2 years ago

      Hi Kelly,

      Thank you for your response.

      However, the link doesn't mention the information about .jic file content occupying EPCQ addresses.

      It's more like a guide about file conversion.

      Adam S

  • KellyJialin_Goh's avatar
    KellyJialin_Goh
    Icon for Frequent Contributor rankFrequent Contributor
    2 years ago

    Hi,

    Any updates from your end whether the information provided was useful?


    Thank you.


    Regards,

    Kelly


  • KellyJialin_Goh's avatar
    KellyJialin_Goh
    Icon for Frequent Contributor rankFrequent Contributor
    2 years ago

    Hi,

    Any updates on the issue? Is there any further support needed from my end?


    Thank you.


    Regards,

    Kelly


  • tehjingy_Altera's avatar
    tehjingy_Altera
    Icon for Regular Contributor rankRegular Contributor
    2 years ago

    Hi


    Since this thread been resolve, I shall set this thread to close pending. If you still need further assistance, you are welcome reopen this thread within 20days or open a new thread, some one will be right with you. Please login to ‘https://supporttickets.intel.com’, view details of the desire request, and post a feed/response within the next 15 days to allow me to continue to support you. After 15 days, this thread will be transitioned to community support. The community users will be able to help you on your follow-up questions.


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    Regards

    Jingyang, Teh