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nome's avatar
nome
Icon for Occasional Contributor rankOccasional Contributor
4 years ago
Solved

FPGA configuration without cpld

hello
I m using arria ii gx with cfi nor parallel flash memory x8 FPP Mode As we know when we start configure fpga from cfi flash we should have cpld and processor or directly from spi flash it is also easy way to configure fpga but I want to know Is it possible can we configure fpga directy from cfi flash without any maxii cpld or any other devices ?
Thanks
Nome butt
  • Ash_R_Intel's avatar
    Ash_R_Intel
    4 years ago

    Hi,

    Just to let you know that as @sstrell mentioned, 'Active' mode is required to initiate the configuration by FPGA itself. In 'Passive' mode, an external device such as CPLD or microprocessor should initiate it.

    Choose according to your need and available component.


    Regards


6 Replies

  • nome's avatar
    nome
    Icon for Occasional Contributor rankOccasional Contributor
    4 years ago
    Hello
    Thanks for your Reply
    In our case sir we have only cfi flash with x8 FPP mode hardware can't add serial prom devices we only have CPLD MAXII
    that's why i m asking we don't want to configure from cpld
    any other solutions please share us
    thanks sir
    Nome
  • sstrell's avatar
    sstrell
    Icon for Super Contributor rankSuper Contributor
    4 years ago

    Well, that's the difference between "passive" and "active" configuration. Passive means that a secondary device handles configuration, while active means that it's managed directly by the FPGA to the flash device. If you can't change this in your design (can't change your board design?) to connect the flash directly to the FPGA, you can't use an active configuration protocol like active serial (AS).

  • nome's avatar
    nome
    Icon for Occasional Contributor rankOccasional Contributor
    4 years ago
    Hello
    @sstrell
    Thanks for your valuable comment
    We can't change our custom design Active configuration is new for me
    My Arria ii full interface with cfi flash and I used pfl only flash programming i can program erase our cfi flash
    but can't configure pages thatswhy i asked regarding direct configure from FPGA
    Thanks
    Nome
  • nome's avatar
    nome
    Icon for Occasional Contributor rankOccasional Contributor
    4 years ago
    Hi
    I have checked Active prallel mode but in my case Arria ii gx doesn't support this mode
    maybe i have to use x8 passive prallel mode
    Thanks
    nome
  • Ash_R_Intel's avatar
    Ash_R_Intel
    Icon for Regular Contributor rankRegular Contributor
    4 years ago

    Hi,

    Just to let you know that as @sstrell mentioned, 'Active' mode is required to initiate the configuration by FPGA itself. In 'Passive' mode, an external device such as CPLD or microprocessor should initiate it.

    Choose according to your need and available component.


    Regards