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多核访问ddr的问题



现在程序是这样设计的,6678的0核定时从共享内存中通过edma搬到ddr3,其他核同时从ddr3中取数进行处理,发现edma搬移几次后就不再搬移了,是不是ddr冲突了,edma搬移的时候,其他核可能还在在访问ddr