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FHint's avatar
FHint
Icon for Occasional Contributor rankOccasional Contributor
3 years ago
Solved

Unable to read data from flash via Generic Serial Flash Interface (only zeros)

Hello, in my current Arria 10 GX design I have one small Micron flash for the FPGA binary (MT25QU256ABA1EW9, 32MByte) and two larger Micron flash devices (MT25QU01GBBB1EW9, 128 MByte each) for rand...
  • FHint's avatar
    FHint
    3 years ago

    Hello,

    thank you for the reply. It isn't necessary to check the project anymore, because it now works.

    The problem was solved by switching from version 19.1 to 21.1 of the Quartus Prime Standard software.

    Best Regards,
    Florian

FHint's avatar
FHint
Icon for Occasional Contributor rankOccasional Contributor
3 years ago

Hello Farabi,

the restrictions mentioned in the document you attached don't seem to interfere what I am trying to achieve.

  • I am using 4 Byte addressing
  • I am using 10 dummy cycles
  • The third party flash supports the four Opcodes mentioned in the document, as you can see her:

    and

Can you explain what else I can learn from chapter 2.3 of the document you attached?
As mentioned in the original post above, the correct data is transmitted by the Flash via SPI, but the GSFI doesn't output it via the Avalon-MM slave.

Best Regards,
Florian