?? sine.txt
字號:
% Creat a data file of the sinewave, which DSP chip can load .%
clear all;
Fs=44100; %Sampling Frequecy of AIC23=44.1KHz%
f1=500; %Frequency of Sine Wave"
for m=1:2048;
x=sin(2*pi*f1*[0: 2048]/Fs); % Number of Sampling point=2048, and create sine wave%
if x(m)>=0 y(m)=x(m);
else y(m)=2+x(m);
end;
end;
y=y*32768;
fid=fopen('sine.dat','w');%打開文件
fprintf(fid,'1651 1 0 1 0\n');%輸出文件頭
fprintf(fid,'0x%x\n',round(y));%輸出
fclose(fid);
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