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what does it mean, ":SEVERE: C64+_0: Error: Illegal DMA write to address (0x108f0000) that is configured as cache "?

AppleCat
Intellectual 660 points

Hi,

       I am running a java-based DSS script on the CCS_4.0.0.16000, and an error,

SEVERE: C64+_0: Error: Illegal DMA write to address (0x108f0000) that is configured as cache

 

 

 

pops up. What does it mean? I am trying to run the target to a breakpoint, and then write some data to a global-static memory before I resume the targert.

 

Br,

AppleCat

 

 

  • 0
    TI__Intellectual 1380 points

    Hi,

     

    The following things are happening in your application

    1. Your application is attempting to initiate a DMA transfers to the c64x+ memory system's internal memory.

    2. Your application has also configured the internal memory into cache-memory. Hence the internal-memory is no-more directly addressable and accessible (by anyone, including DMA).

     

    The simulator warns you that you are initiating a DMA transfer to an address that is not accessible (because it is converted to cache-memory). Please check your cache configuration and memory placement.

    Regards,

    Nizam

     

  • 0 in reply to Nizamudheen A
    Intellectual 660 points

    Thank for the suggestion. I will have a look at it.