Changes between Version 2 and Version 3 of HardwareUsersGuides/WARPv3/Memory


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Timestamp:
Mar 19, 2013, 9:14:59 PM (7 years ago)
Author:
murphpo
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  • HardwareUsersGuides/WARPv3/Memory

    v2 v3  
    11[[TracNav(HardwareUsersGuides/WARPv3/TOC)]]
    22== WARP v3 User Guide: Memory ==
    3 The WARP v3 board includes a DDR3 SO-DIMM slot routed to dedicated pins on the FPGA. When combined with a DDR3 memory controller core in the FPGA, the SO-DIMM is available to user designs. The SO-DIMM interface on WARP v3 is designed to support modules up to 8GB in size and run at up to 400MHz. Faster speeds may be possible but are not recommended.
     3The WARP v3 board includes a DDR3 SO-DIMM slot routed to dedicated pins on the FPGA. When combined with a DDR3 memory controller core in the FPGA, the SO-DIMM is available to user designs. The SO-DIMM interface on WARP v3 is designed to support modules up to 8GB in size and run at up to 400MHz. Faster speeds may be possible but require very careful tuning of the FPGA design to meet timing. Our [wiki:../TemplateProjects template projects] run the memory at 320MHz, which strikes a good balance between performance and easier timing closure.
    44
    55Every WARP v3 kit ships with a pre-tested 2GB SO-DIMM rated for at least 400MHz operation. If you want to use another SO-DIMM, we recommend using modules from major manufacturers, acquired through authorized (and reputable) channels. All too often cheap modules can be out-of-spec (or outright counterfeits), and debugging flaky RAM in hardware is hard.