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AM5718 DSP 内存操作慢

Other Parts Discussed in Thread: AM5718, SYSBIOS

使用big-data共享内存方式在AM5718的A15与DSP进行数据传递,在big-data基础上修改测试,A15每次传递CMEM   2M大小数据向DSP,DSP对2M数据按照float字节数据循环*0.8,测试10次传递共计耗时1.7秒。

请问是我的过程哪里配置的有问题吗,如何确认DSP cache是否有帮助。