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DM8148 DDR3 Read/Write Error

All

   I  have a problem about DDR3 RW .

  1: Connect A8, Load PG2.1_DM814X_20Mhz_Si.gel.gel and Carry out  follow gel scripts.

       PG 2.x DM814X --> ALL_ADPLL_CLOCKS_ENABLE_API 
       PG 2.x DM814X --> DDR3_EMIF0_EMIF1_Config_Full_leveling

 2:  Write the  RW Code like this:

     UINT32* test=(UINT32*)0x80000000;
    for ( j = 0 ; j < 1024 ; j++ )
   {
         test[j]=0xffffffff;
   }

3 after running the code,I see the result at Memory Broswer

 

We can see that ,not  all datas  are FFFFFFFF,It looks like  some memory cann't be wrote

I wana konw  the reason of this problem.I will give more information if need.

Thanks for your reply very much !