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使用DSP实现FFT

Other Parts Discussed in Thread: TMS320C6678

TI工程师:

        您好!

        我在实现FFT时需要在DSP和FPGA中做一个选择,实验结果如下(DSP只使用一个核):

         在FFT计算点数超过8192点后,DSP计算FFT的时间急剧增加,计算速度慢于FPGA,您能帮我解释一下原因吗,谢谢!