BF706 EPPI image problem

Recently, I was using the EPPI controller to collect image data , image format is 640* 480 , PCLK =24M ,I confirm that the sensor has data to EPPI controller, and the DMA setting is OK. I guess the configuration of EPPI controller is not successful, resulting in no data collection.   here  is my code , thanks ,cEPPI_Image.rarheck it .

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