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RM57L843: Can't read EMAC-address at 0xFCF78500 register in the memory browser

Zsolt Nagy
Intellectual 310 points
Part Number: RM57L843

Hello everyone,

My problem is stated in the title. When I move to cursor over the field a popup windows says: "Error: Memory map prevented reading 0xFCF78500". Why is this?

Thanks for your help in advance.

Regards,

Zsolt

  • 0
    TI__Mastermind 49120 points
    Hello,

    Please check the configuration of the CPU's MPU for the region(s) that covers this memory address.

    Regards,
    Sunil
  • 0
    TI__Mastermind 49120 points

    My previous response was not correct, as this is a debugger issue. The debugger memory map setup is incorrect. The gel file used to set up the debugger memory map has the following lines:

    /* EMIF/Ethernet Registers */
    GEL_MapAdd(0xFCFFE800, 0, 0x00000100, 1, 1); /* EMIF */
    GEL_MapAdd(0xFCF78000, 0, 0x00000400, 1, 1); /* CPGMAC Slave */
    GEL_MapAdd(0xFCF78800, 0, 0x00000100, 1, 1); /* CPGMACSS Wrapper */
    GEL_MapAdd(0xFCF78900, 0, 0x00000100, 1, 1); /* Ethernet MDIO */

    As you see, the CPGMAC slave register frame is only defined to be of size 0x400. This needs to be increased to a size of 0x800. You can change this setting manually for now, I will try and get this corrected in the next update to CCS as well.

    The relevant gel file is usually: C:\ti\ccsv8\ccs_base\emulation\gel\rm57l8x.gel if CCS is installed with the default folder-location settings.

    Regards,

    Sunil

  • 0 in reply to Sunil Oak
    Intellectual 310 points

    It works, thank you.

    Regards,

    Zsolt