%?//?TI?File?$Revision:?/main/3?$
%?//?Checkin?$Date:?November?1?2010???13:05:07?$
%?//?=====================================================================================
%?//??This?software?is?licensed?for?use?with?Texas?Instruments?C28x
%?//??family?DSCs.??This?license?was?provided?to?you?prior?to?installing
%?//??the?software.??You?may?review?this?license?by?consulting?a?copy?of
%?//??the?agreement?in?the?doc?directory?of?this?library.
%?//?-------------------------------------------------------------------------------------
%?//??????????Copyright?（C）?2010-2011?Texas?Instruments?Incorporated.
%?//??????????????????????????All?Rights?Reserved.
%?//======================================================================================
%?//
%?//?	FILE:????FixedRFFBRevAcq.m
%?//
%?//?	title:???DSP2833x?Device?Fixed?Point?Real?Input?Point?by?Point?Bit
%?//?????????????Reversed?Test?Program.???
%?//
%?//
%?//?	ASSUMPTIONS:
%?//
%?//???	This?matlab?code?is?reference?code?for?debugging?FixedPoint?DSP?library
%?//????module?BRevAcq?and?example?project?2833x_FixedPoint_BrevAcq.?
%?//
%?//
%?//???
%?//????Watch?Variables:
%?//
%?//??????x_raw_sig?????????Input?signal?（float）
%?//??????RxIx				Bit-revesed?real?and?imaginary?part?of?signal
%?//????????????????????????（Q31）
%?//
%?//######################################################################################
%?//?$TI?Release:?C28x?Fixed-Point?DSP?Library?v1.10?$
%?//?$Release?Date:?November?1?2011?$
%?//######################################################################################

clear?all
close?all

disp（‘==============================================================‘）;
disp（‘input?signal?is?stored?as?Q31?format‘）;
disp（‘==============================================================‘）;
disp（‘this?is?Matlab?version?of?C28x?Fixed?Point?RFFT?code‘）;
disp（‘The?result?is?stored?in?array?X‘）;
disp（‘The?signal?is?stored?in?array?x_raw_sig‘）;
disp（‘==============================================================‘）;

RadStep?=?0.1963495408494;

stages=input（‘Please?enter?stages?（>=3）?=‘）;
N=2^stages;
halfSize=N-1;

Rad=[0:RadStep:（halfSize）*RadStep];

even_idx=0:halfSize;
odd_idx=even_idx+1;

CFFTinBuf1=zeros（1N）;

Rx=sin（Rad）+cos（Rad*2.3567）;
Ix=0*（cos（Rad*8.345）?+?sin（Rad*5.789））;

x=Rx+j*Ix;
x_raw_sig=x/2;

x_win=Rx.*hamming（N）‘;

fft_float=2^31*fft（x/2）/N;

%bit?reverse?algorithm
for?i=1:N
????dr（i）?=?bin2dec（fliplr（dec2bin（i-1stages）））+1;
end

dr_1=dr-1;
Rx=2^31*x（dr）/2;
Ix=2^31*Ix（dr）/2;

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2015-11-12?21:14??dsp\
?????目錄???????????0??2015-11-12?21:14??dsp\FPU\
?????目錄???????????0??2015-11-12?21:14??dsp\FPU\v120\
?????目錄???????????0??2015-11-12?21:14??dsp\FPU\v120\doc\
?????文件??????166725??2013-08-15?13:46??dsp\FPU\v120\doc\C28x_FPU_Library_v1.20.pdf
?????文件???????31047??2013-08-15?13:46??dsp\FPU\v120\doc\Form_C2000_Web-wrap_License_Agreement_07.12.04.pdf
?????目錄???????????0??2015-11-12?21:14??dsp\FPU\v120\examples_ccsv4\
?????目錄???????????0??2015-11-12?21:14??dsp\FPU\v120\examples_ccsv4\2833x_CFFT\
?????文件???????10491??2013-08-15?13:46??dsp\FPU\v120\examples_ccsv4\2833x_CFFT\.cdtbuild
?????文件?????????677??2013-08-15?13:46??dsp\FPU\v120\examples_ccsv4\2833x_CFFT\.cdtproject
?????文件????????2768??2013-08-15?13:46??dsp\FPU\v120\examples_ccsv4\2833x_CFFT\.project
?????目錄???????????0??2015-11-12?16:20??dsp\FPU\v120\examples_ccsv4\2833x_CFFT\cmd\
?????文件????????7659??2013-08-15?13:46??dsp\FPU\v120\examples_ccsv4\2833x_CFFT\cmd\28335_CFFT_RAM_lnk.cmd
?????文件??????????97??2013-08-15?13:46??dsp\FPU\v120\examples_ccsv4\2833x_CFFT\macros.ini
?????目錄???????????0??2015-11-12?16:20??dsp\FPU\v120\examples_ccsv4\2833x_CFFT\matlab\
?????文件????????8397??2013-08-15?13:46??dsp\FPU\v120\examples_ccsv4\2833x_CFFT\matlab\CFFTforC28xNew.m
?????目錄???????????0??2015-11-12?16:20??dsp\FPU\v120\examples_ccsv4\2833x_CFFT\source\
?????文件????????8391??2013-08-15?13:46??dsp\FPU\v120\examples_ccsv4\2833x_CFFT\source\Test_FPU_CFFTF32.c
?????目錄???????????0??2015-11-12?21:14??dsp\FPU\v120\examples_ccsv4\2833x_FIR\
?????文件???????10169??2013-08-15?13:46??dsp\FPU\v120\examples_ccsv4\2833x_FIR\.cdtbuild
?????文件?????????677??2013-08-15?13:46??dsp\FPU\v120\examples_ccsv4\2833x_FIR\.cdtproject
?????文件????????2253??2013-08-15?13:46??dsp\FPU\v120\examples_ccsv4\2833x_FIR\.project
?????目錄???????????0??2015-11-12?16:20??dsp\FPU\v120\examples_ccsv4\2833x_FIR\cmd\
?????文件????????6638??2013-08-15?13:46??dsp\FPU\v120\examples_ccsv4\2833x_FIR\cmd\28335_FIR_RAM_lnk.cmd
?????文件??????????97??2013-08-15?13:46??dsp\FPU\v120\examples_ccsv4\2833x_FIR\macros.ini
?????目錄???????????0??2015-11-12?16:20??dsp\FPU\v120\examples_ccsv4\2833x_FIR\matlab\
?????文件????????1018??2013-08-15?13:46??dsp\FPU\v120\examples_ccsv4\2833x_FIR\matlab\FIR32forC28x.m
?????目錄???????????0??2015-11-12?16:20??dsp\FPU\v120\examples_ccsv4\2833x_FIR\source\
?????文件????????6045??2013-08-15?13:46??dsp\FPU\v120\examples_ccsv4\2833x_FIR\source\Test_FPU_FIR.c
?????目錄???????????0??2015-11-12?21:14??dsp\FPU\v120\examples_ccsv4\2833x_RFFT\
?????文件???????10405??2013-08-15?13:46??dsp\FPU\v120\examples_ccsv4\2833x_RFFT\.cdtbuild
............此處省略3050個文件信息