ADC_simultaneous_DMA_FFT

代码说明：

  利用28335自带的ADC采集两路模拟正弦信号，用DMA方式将采样值写入内存，用epwm控制采样周期。利用FFT求得两路正弦信号的相位差。(Sampling two analog sinusoidal signals, write them to the memory by DMA controller. The sampling period is controlled by the EPWM module. Calculate the phase difference by FFT method.)

文件列表：

ADC_simultaneous_DMA_FFT
........................\ADC.c,1418,2014-01-17
........................\ADC.h,352,2014-01-17
........................\ADC_DMA_FFT.CS_
........................\...............\FILE.CDX,3072,2014-01-22
........................\...............\FILE.DBF,1910,2014-01-22
........................\...............\FILE.FPT,3184,2014-01-22
........................\...............\SYMBOL.CDX,356864,2014-01-22
........................\...............\SYMBOL.DBF,247677,2014-01-22
........................\...............\SYMBOL.FPT,427129,2014-01-22
........................\ADC_DMA_FFT.paf2,13512,2014-01-22
........................\ADC_DMA_FFT.pjt,2185,2014-01-20
........................\ADC_DMA_FFT.sbl,9333,2014-01-22
........................\cc_build_Debug.log,6747,2014-01-22
........................\Debug
........................\.....\ADC.obj,112944,2014-01-22
........................\.....\ADC_simultaneous_DMA.map,32499,2014-01-22
........................\.....\ADC_simultaneous_DMA.out,207628,2014-01-22
........................\.....\DMA.obj,113515,2014-01-22
........................\.....\DSP2833x_Adc.obj,112691,2014-01-22
........................\.....\DSP2833x_ADC_cal.obj,1112,2014-01-22
........................\.....\DSP2833x_CodeStartBranch.obj,1391,2014-01-22
........................\.....\DSP2833x_DefaultIsr.obj,154842,2014-01-22
........................\.....\DSP2833x_DMA.obj,137763,2014-01-22
........................\.....\DSP2833x_GlobalVariableDefs.obj,122568,2014-01-22
........................\.....\DSP2833x_PieCtrl.obj,113045,2014-01-22
........................\.....\DSP2833x_PieVect.obj,119948,2014-01-22
........................\.....\DSP2833x_SysCtrl.obj,118030,2014-01-22
........................\.....\DSP2833x_usDelay.obj,1123,2014-01-22
........................\.....\EPWM.obj,112081,2014-01-22
........................\.....\MainRun.obj,117411,2014-01-22
........................\.....\mfft.obj,120874,2014-01-22
........................\Debug.lkf,1670,2014-01-22
........................\DMA.c,1128,2014-01-21
........................\DMA.h,233,2014-01-21
........................\EPWM.c,446,2014-01-17
........................\EPWM.h,97,2014-01-17
........................\MainRun.c,4403,2014-01-21
........................\MainRun.h,339,2014-01-19
........................\mfft.c,2874,2014-01-20
........................\mfft.h,184,2014-01-20