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Altera_Forum
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13 years ago

the quarter sine LUT code

Dear all I need to get the quarter sine LUT in DDFS (Herewith the MATLAB code that I used) i=[0:i-1]; x= (i-1)*sin ((pi/2)*i/31));
Altera_Forum's avatar
Altera_Forum
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13 years ago

The Quarter sine wave LUT code for 8 bits:

i=[0:255];

x= 255*sin ((pi/2) *i /255);

y=str(x,8) ;

but when i used it in DDS simulation , I got no sine wave((note: i applied all the other requirment))