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Discussion Groups | Code-Composer | why EDMA no speed improvement

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why EDMA no speed improvement - Yong Yang - May 14 4:29:00 2004



Hi, all
 
I compared EDMA fast copy DAT_copy() with C function memcpy() in my program, but there is no difference in speed. Why does EDMA have no improvement of speed?
 
Thank you
 
Yong





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Re: why EDMA no speed improvement - Yong Yang - May 15 1:18:00 2004

Hi, Phil
 
Thanks for your answer. You mean probably even I use DAT_copy(), it is still executed by the DSP core instead of using EDMA hardware. Then how can I ensure it is executed by EDMA hardware and let the DSP core do other processing at the same time?
 
Yong





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