芯片型号: J3 pliot
请问下HB_VP_DmaCopy这个接口怎么使用的，申请一个物理内存，然后拷贝了一张1080p大小的图像后，将对应的虚拟内存的数据写文件发现数据都是0，耗费了大概20ms的时间，其中满足了src跟dst都是连续内存的条件，请问这个函数接口应该怎么使用，麻烦解答一下，感谢！
专栏底层软件HB_VP_DmaCopy 函数接口的使用问题
HB_VP_DmaCopy 函数接口的使用问题
求助中
红鲤鱼绿鲤鱼与驴1小时前
1
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底层软件
技术深度解析征程3
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