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IS61LV5128AL Interfacing with ADSP21369

Hii All,

   I am sruthi. I am working with ADSP21369 .I tried to interface that with IS61LV5128AL SRAM. In ezkit it worked successfully. But when I tried in custom board it is writing to all memory locations. I connected sram with bank0 of ADSP21369. Starting address is 0X0020 0000. When i tried to write in this location it is writing to all locations. Why it is happening like this. Is there any software issue. Because I used the  code which I tested on ezkit. 

Pls help me.

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