HWA工作在slow DFT mode，如何处理出mm级精细距离值的？？

你好，

startFreq的配置，请参考demo代码的data_path.c里的MmwDemo_configInterp_HWA函数。

关于slow DFT，我建议看看Radar Hardware Accelerator user gudie里面的Frequency shifter with auto-increment mode(a slow DFT mode)的相关内容。我摘抄了部分供参考：
The increment value is calculated as 2^(14 – FFTSIZE)
and hence the DFT resolution is 16384/2^(14 – FFTSIZE) = 2^FFTSIZE. As an example, if FFTSIZE =
1011b, then the DFT resolution is 2048. This is equivalent to computing DFT points corresponding to
2K size FFT grid. The highest resolution for the DFT would be obtained when FFTSIZE = 1110b (max
allowed value), in which case the DFT resolution is 16384 (corresponding to 16K size FFT grid).