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DM8127跨核传递数据时收到的数据总是为NULL

Ray Zheng
Prodigy 230 points


自己写了个小程序实现在DM8127平台上使用mcfw框架从文件读数据去编码的功能，使用的usecase是：
                                  BITSOUT(A8)
                                       |
                                       |
                                   BITSIN(VID)
                                       |
                                       |
                                    H264ENC
                                       |
                                       |
                                   BITSOUT (VID)
                                       |
                                       |
                                   BITSIN (A8)
遇到的问题是在A8中填充数据并归还buffer后，在M3中的bits in link中的IpcBitsInLink_processBitBufs函数获取数据总是为NULL。但是如果在A8 bits out link中IpcBitsOutLink_listMPPut调用后立即获取数据是正确的，说明核内通讯没问题，而核间通讯出现了问题。

请问如何解决这种问题，帮我一下，谢谢！