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CCS/TMS320F28379D: CCS/TMS320F28379D

eray akyol
Prodigy 150 points
Part Number: TMS320F28379D


Tool/software: Code Composer Studio

Hello everyone,

I'm currently working on motor control application including CAN communication. I'm using TMS320F28379D and CCS  v7.2. When I run the code, everything works fine but after some time I get the following error: 

"Memory map prevented reading 0x0004A000@Data (Hex)"

Memory browser is shown below. 

I suspect from GEL file (see below) but I believe there is no  ambiguity. I also try to increase heap and stack size but unfortunately it doesn't work. i would appreciate if you could suggest a solution.

Thanks

/* Peripheral memory maps */
GEL_MapAddStr(0x00048000,3, 0x800, "R|W|AS4",0); /* CANA Registers */
GEL_MapAddStr(0x0004A000,3, 0x800, "R|W|AS4",0); /* CANB Registers */

GEL_TextOut("\nMemory Map Initialization Complete\n");

  • 0
    TI__Mastermind 38730 points

    Hi Eray,

    Would it be possible for you to set breakpoints in your code to isolate where this is happening and are you using both CPUs in your application?  I am assuming that the moment you load up your code before running anything, you are able to view the CAN address memory space in your memory browser.

    Regards,

    Joseph

  • 0 in reply to Joseph Casuga
    Prodigy 150 points

    Hello Joseph,

    First of all thanks for your reply. Actually I did not realize until you have mentioned that I am not able to view the CAN address memory before running anything. But at the beginning, I am able to read the data from can addresses and everything is working fine. I am using only CPU1 but would it make any difference if I use both?

    I have add more code to main.c (functions, variables etc.) and I am not getting the "Memory map prevented reading 0x0004A000@Data (Hex)" error but now code ends up with User Defined Trap subroutine in "F2837xD_DefaultISR.c".  

    I am reading errata sheet because this behavior is not predictable.  I will share the news with you.

    Best regards,

    Eray