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How to access memory with Custom IP?

Honored Contributor II


I have a working example which reads image data from host PC transfer it to an FPGA using PCIe which store in memory then a frame reader is used to show the image on a vga screen. 

I have developed a custom entity which has to make calculations to the data stored in memory. The question is, as i am beginner here, how can I access the image data in the memory so I can make the calculation then I can re-save the data in the memory before it is shown again on the VGA screen. 

The developing board is de2i-150. 


Thank you in advanced, 


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