dsp不通过edma而通过cpu从ddr读取数据到sram的速度和从sram读取数据到ddr的速度不一致。请问这是正常的么?以下是测试结果。拷贝的是2048个float型变量。
Time for CopydatSp from l2_sram is 11853
Time for CopydatSp from ddr is 241451
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dsp不通过edma而通过cpu从ddr读取数据到sram的速度和从sram读取数据到ddr的速度不一致。请问这是正常的么?以下是测试结果。拷贝的是2048个float型变量。
Time for CopydatSp from l2_sram is 11853
Time for CopydatSp from ddr is 241451