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I am using DM6437 EVM board for doing image processing. I capture image from DVD player do some processing and display it into monitor. i tried video_preview example given in DVSDK and it works fine. So i used that as base and integrated it into my image processing. My image processing algorithm is unoptimised so it takes long time to process. so after say some 40 frames whole system hangs. I searched a lot and found this http://processors.wiki.ti.com/index.php/DM643x/DM6446_VPSS_buffer_overflow_problem . But then the problem here is CCDC_WBL_O is never set . so i dunno how to catch this condition. I am novice . Please guide me about what i am missing and how to solve this problem.