Article ID: 000081482 Content Type: Troubleshooting Last Reviewed: 09/11/2012

Why do designs containing RAM with word size greater than 16,384 fail to fit in EP2AGZ225 devices?

Environment

  • Quartus® II Subscription Edition
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    Description

    Due to a problem in the Quartus® II software version 11.0 SP1 and earlier, your design may fail to fit in certain Arria® II devices if all the following conditions are true:

    1. The design contains a RAM with word size is greater than 16,384
    2. The memory block type for this RAM is set to Auto
    3. The design targets an EP2AGZ225 device
    Resolution

    To work around this problem, change the memory block type to M9K for any RAM with word size greater than 16,384.

    This problem is scheduled to be fixed in a future version of the Quartus II software.

    Related Products

    This article applies to 1 products

    Arria® II GZ FPGA

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