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ch2399
Visitor II
December 12, 2008
Question

Flash Registers

  • December 12, 2008
  • 2 replies
  • 800 views
Posted on December 12, 2008 at 06:25

Flash Registers

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    2 replies

    C
    ch2399Author
    Visitor II
    December 2, 2008
    Posted on December 02, 2008 at 08:47

    Am working with the ST10F276 and I'm trying to write to the XFlash memory.

    When I try to access one of the flash registers (FCR0H, FARL, ...) the microcontroller stops working.

    My code (Keil):

    FCR0H = (unsigned int huge*)(0x000E0002);

    *FCR0H =0x2000;

    Does anybody know why this problem occurs?

    S
    stefan
    Visitor II
    December 12, 2008
    Posted on December 12, 2008 at 06:25

    Well, i´m not sure about this...

    If you haven´t solved the problem yet, try indirect addressing to Flash Control Registers. Direct addressing mode (FCR0H = 0x2000) is not allowed to Flash Control Registers.

    Try:

    FCR0H |= 0x2000 for the WPG Bit

    You can also try to read out the Flash Error register FER. Bit SEQUER should be set if this was your problem.

    [ This message was edited by: stefan.nischwitz on 12-12-2008 13:03 ]

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