I have designed a product based on BF533. I use the schematics in document ADSP-BF533 EZ-KIT Lite Manual.pdf to attach the MT48LC32M16A2 to BF533. As you know, the EZ-KIT Lite use MT48LC16M16A2. the two SDRAM have different size.
In my program, I initiate the sdram with code:
" *pEBIU_SDBCTL = 0x00000025; " // 10 bit column address. 64M sdram.
and in the project options ,I select the extern memory size to 64M.
after do these. I copy the talkthrough code to my project.
But, the sound outputed has some noise.
If I do not initialize the sdram,and the extern memory size is set to 32M in the project options . the talkthrougn works well.
I was confused.
would you please help me out the problem?
thanks a lot.