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Valued Contributor III
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Problem with using external DDR2 on DE3

Hi all, 

 

I have a DE3 from Terasic, and my purpose is to store some data into the DDR2 and get it back after some while. But I am quite confused about the high performance DDR2 controller.  

 

1. If SOPC is used, how can I write/read the data into the DDR2?Is it Okay if I just assign some values to all the signal listed, for instance,mem_dqs? (we assume the data is already inside the FPGA)  

2. If we use the megawizard, could anyone show me some more detailed process?(the document feels kind of blured...) 

 

I would really appreciate if anyone can help. 

 

Thanks!
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