请问DSP_fft32x32具体应该怎么调用。dsp为6678，我现在是按下图所示（M=2048）来调用的，但最后计算出的A_fft中的元素都是0，这是怎么回事?还有就是调用gen_twiddle_fft32x32(int *w, int n, double scale)时的第三个参数scale是什么（我现在赋的是8，网上有人说是2147483647.5），到底应该怎么赋值？求解答！
dsplib中有一些例程，可以参考看一下。
ti-processor-sdk-rtos-c667x\dsplib_c66x_3_4_0_4\examples
scale的说明请参考：
e2e.ti.com/…/152143
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TI中文支持网