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SZack's avatar
SZack
Icon for Occasional Contributor rankOccasional Contributor
7 years ago

JIC file format structure

I have a customer that wants to know how do they determine where the actual flash data begins after the header. Years ago they wrote code to use a processor to write .jic files into serial flash dev...
JCass5's avatar
JCass5
Icon for New Contributor rankNew Contributor
7 years ago

Hi Noorraini,

Thanks for the help. I created the .rpd file and the FPGA still fails to load. We tried it in both little endian and big endian. We are using a Micron MT25QU256 and we followed the instructions in Bug ID 543053 about using the MT25Q devices. Is there any additional information available about using these devices that may help us debug the problem?

Regards,

Jim C.

  • BKevi's avatar
    BKevi
    Icon for New Contributor rankNew Contributor
    3 years ago

    I know this is a very old thread but for the record.

    You have to set the Non-Volatile Status Register on MT25Q manually with your ROM writer.

    Address mode selection: Must be 4-Byte address mode

    Reset/Hold disable : Must be Disabled

    Dummy clock cycles : Must be 4

    .rdp file needs to be bit swapped, if you was trying to flash it with a ROM writer.

    If you were using .jic file and doing JTAG-Indirectly programming, it will configure Non-Volatile Status Register for you automatically.

    • MK_ABQ's avatar
      MK_ABQ
      Icon for Contributor rankContributor
      3 years ago

      It's cool that you took your time and shared the information for the knowledge of the community. Kudos!