This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

OMAP L138 128K RAM共享内存的问题?



程序运行如下:

DSP端跑了sybios,不停的对0x80000000这128k的共享内存写数据,并把数据读出来通过串口发送出来。

arm端linux用ioremap映射了这段共享内存,然后也在不停的读写。

然后就发现arm往共享内存写的数据,在DSP端读出来不对,同样的DSP更新的数据,在ARM端读出来也不对。

有谁遇到过吗?

请问下是怎么回事?