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disable cache on DM8148

Shlomo Kabaz
Intellectual 690 points
Other Parts Discussed in Thread: SYSBIOS

hello  ,

  I am  working with  DVRRDK_04.01  and ccs  version  5.5    .

  I am programming  the C674x .

  What do i have to do to disable cache only in the  shared regions  in the system .  

  If  i set  the field 'cacheEnable' in the struct 'SharedRegion.setEntryMeta'  to 'false'

  my application stops working with the Arm .

Regards .

  • 0
    TI__Mastermind 18260 points

    Shlomo Kabaz said:

    If  i set  the field 'cacheEnable' in the struct 'SharedRegion.setEntryMeta'  to 'false'

      my application stops working with the Arm .

    The cacheEnable field for SharedRegion is just information for SharedRegion, telling it whether or not it needs to perform cache maintainence calls or not.  It has no effect on the cache mode itself.

    You need to use Cache_setMar() (for runtime setting) or Cache.setMarMeta() (for static setting in .cfg file) to disable caching of your SharedRegion.  Please see <SYSBIOS_INSTALL_DIR>/docs/cdoc/ti/sysbios/family/c66/Cache.html

    Regards,

    - Rob

  • 0 in reply to Robert Tivy
    Intellectual 690 points

    Hello  Rob 

      Thank you for your answer , it helped a lot .

    Regards , Shlomo .