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Aflop's avatar
Aflop
Icon for Occasional Contributor rankOccasional Contributor
2 years ago
Solved

Booting from offboard CFI directly connected to FPGA

Hello, I am new to FPGA's and have been handed an assignment which I am not sure is possible. I have a Cyclone 10 GX Development Kit which must get configured with a NIOS and booted with applicati...
Embedded Applications Layer
  • FvM's avatar
    FvM
    2 years ago

    Hi,
    both AS and PP configuration interface are using dedicated FPGA pins and can't be replicated on other pins. That's because the specific function is built-in to the FPGA, working before any user code has been loaded. NIOS boot is controlled by HDL code and can basically use any memory interface.

    While AS configuration is performed autonomously by FPGA, PP needs an external controller, usually MAX V CPLD. Configuration data is presented to FPP data lines (either 16 or 32, depending on the mode) and clocked in by DCLK.

Jeet14's avatar
Jeet14
Icon for Frequent Contributor rankFrequent Contributor
2 years ago

Hi,


Thanks for contacting Intel. I'm assigned to support request.

I'll investigate on this case and get back to you soon once I have any finding.

Thanks for your patience.


Regards

Tiwari


  • FvM's avatar
    FvM
    Icon for Super Contributor rankSuper Contributor
    2 years ago
    You say, you want to connect QSPI and CFI memory though FMC connector. However FMC doesn't regularly include active serial or passive parallel configuration signals. In so far I don't see an option to perform FPGA configuration through the interface. Reading and writing CFI should be possible.