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Altera_Forum's avatar
Altera_Forum
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14 years ago

On_chip_memory

Hi. Have anyone know MAXIMUM onchip-memory when programming SOPC on cyclone III dev kit.

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  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    14 years ago

    It will depend on the number of M9K blocks on the FGPA and how many will be used for other purposes by your design.

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    14 years ago

    even if there's nothing else in the design, you won't be able to make an On Chip Memory that uses the entire FPGA. this has to do with how the fitter stitches together M9K

    you'll probably need to increment the On Chip Memory size (in steps equal to an M9K) to find the max size you can do in the FPGA, or use pencil and paper after you figure out how the tool is placing the RAM