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Visitor II
December 16, 2004
Question

STPC VEGA (or Atlas) : initialization SDRAM

  • December 16, 2004
  • 4 replies
  • 808 views
Posted on December 16, 2004 at 21:01

STPC VEGA (or Atlas) : initialization SDRAM

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    4 replies

    granitvtAuthor
    Visitor II
    October 16, 2004
    Posted on October 16, 2004 at 10:47

    Hello

    I need in procedure (or algorithm) initialization SDRAM and SDRAM Controller in STPC VEGA or Atlas (load mode register in SDRAM). STPC VEGA after restart (SYSRSTO# go inactive state) implemente PRECHARGE and Load mode register in SDRAM with default setting (which was in registers of SDRAM Controller). My approach was unsuccessful, and I cann't find description about initialization SDRAM on STPC VEGA (or Atlas).

    Thaks for the answer, best regards.
    Visitor II
    October 22, 2004
    Posted on October 22, 2004 at 11:44

    Please refer to the Vega Programming manual that includes all the register to configure the SDRAM.

    granitvtAuthor
    Visitor II
    October 25, 2004
    Posted on October 25, 2004 at 07:51

    Hello

    Thank you for the answer, but I want to know how can I generate cycles for the SDRAM chips for load mode register of SDRAM (data and sequence of writing cycles to the MEM_REG0 STPC VEGA (bits 25, 26)) ?

    Best regards.

    Visitor II
    December 16, 2004
    Posted on December 16, 2004 at 21:01

    I think you can find some example in BIOS writer's guide in this site.