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Why the DMA controller inhibit my code running in nios ii hardware?


I am running a code in NIOS ii hardware from eclipse, but when the DMA controller for video that i using to save frames from stream to memory, is enabled my code get inhibit and do nothing. i am working with the D5M terasic Camera and Saving the Frames in the SDRAM, in the code showed in the picture I disable the DMA controller to execute the for loop, and after the loop i enable again de DMA controller, in that moment my code stop.

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