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A
ase
Visitor II
March 2, 2007
Question

STR91x can not execute 32-bit writing to external RAM.

  • March 2, 2007
  • 2 replies
  • 724 views
Posted on March 02, 2007 at 10:59

STR91x can not execute 32-bit writing to external RAM.

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    2 replies

    A
    aseAuthor
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 09:36

    With 32-bit reading all Ok.

    But with writing the every second pulse ALE is missed.

    Explain please to me how correctly adjust EMI-registers to solve this problem, if it possible at all.

    Scheme and timing diagram is attached.

    [ This message was edited by: AlexandrY on 17-02-2007 20:04 ]

    A
    aseAuthor
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 09:36

    The problem is solved.

    The fact was that I incorrectly changed the condition of register EMI_BCRx

    Instead of 0x00303010 I wrote down 0x00003010 and it gave fatal consequences. ;)

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