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使用dsplib做4096点FFT

利用dsplib里面的cfft做4096点的FFT时,结果出错

查看文档后,发现函数最大可以做1024点的FFT,那1024以上的FFT就不能使用库函数了吗?

附上文档内容,就是上面的nx范围必须是1024吗?