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Visitor II
April 7, 2007
Question

What is the role of bit 9 in SCU_SCR0 ???

  • April 7, 2007
  • 2 replies
  • 644 views
Posted on April 07, 2007 at 10:55

What is the role of bit 9 in SCU_SCR0 ???

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    2 replies

    alandrasAuthor
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 09:40

    What is the role of bit 9 in SCU_SCR0 ?. According to the datasheet it is reserved, however in STR91x.S from Keil examples it is set to 1. Is there an errata or something about this?

    SCU_SCR0_Val EQU 0x00000196

    ; Setup System Configuration (and SRAM Size)

    IF SCR0_SETUP == 1

    LDR R0, =SCU_BASE

    LDR R1, =SCU_SCR0_Val

    STR R1, [R0, #SCU_SCR0_OFS]

    ORR R1, #0x00000200

    STR R1, [R0, #SCU_SCR0_OFS]

    ENDIF

    thanks,

    Andras

    alandrasAuthor
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 09:40

    hi Zouhair,

    Thanks for your reply!

    Maybe you now something about WSR_AHB ?

    (AHB Wait state enable)

    http://mcu.st.com/mcu/modules.php?mop=modload&name=Splatt_Forums&file=viewtopic&topic=5147&forum=21

    Andras