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Gyud0's avatar
Gyud0
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4 years ago

A read memory problem via Quad SPI mode in Generic Serial Flash Interface IP

Hey, I'm using the Reference design Generic Serial Flash Interface IP on Quartus Prime 18.1 to access Micron MT25QL512Mb flash memory. Via NIOS processor, I able to read the memory data correctly...
MathiasB's avatar
MathiasB
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4 years ago

Hi,

From your read_memory_quad function, it seems that you are configuring the IP but not the component. For instance, you set the IP to behave as Quad IO and 4-bytes adressing, but you also need to set the registers of the component. Or do you do this in another function prior to this one?

  • Gyud0's avatar
    Gyud0
    Icon for Occasional Contributor rankOccasional Contributor
    4 years ago

    I indeed configure the IP as 4-byte addressing and then read the data by read_memory_quad function (CSR region)

    I don't understand the registers you are talking about.

    • MathiasB's avatar
      MathiasB
      Icon for Occasional Contributor rankOccasional Contributor
      4 years ago

      I was refering to the configuration registers on page 24 of the datasheet. Don't you need to set them in order to enable Quad mode for instance?

      • Gyud0's avatar
        Gyud0
        Icon for Occasional Contributor rankOccasional Contributor
        4 years ago

        Can you guide me how I have to set that thing?