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ezdsp5515 FFT计算有误



用5515芯片做FFT

hwafft_br((Int32*)FFTSrcDataBuffer, (Int32*)br_data, DATA_LEN_1024);

hwafft_1024pts((Int32*)br_data, (Int32*)scratch_data, FFT_FLAG, NOSCALE_FLAG);

运行结果跟MATLAB仿真结果比较,hwafft_br函数是对的,但是hwafft_1024pts结果跟matlab结果不一样!

有大神遇到类似的问题,可以解释一下吗?在线等!!!