0832.c

DAC0832产生正弦波

#include <reg51.h>
unsigned int i;
code unsigned char Sin[128]={64,67,70,73,76,79,82,85,88,91,94,96,99,102,104,106,
						109,111,113,115,117,118,120,121,123,124,125,126,126,
						127,127,127,127,127,127,127,126,126,125,124,123,121,
						120,118,117,115,113,111,109,106,104,102,99,96,94,91,
						88,85,82,79,76,73,70,67,64,60,57,54,51,48,45,42,39,
						36,33,31,28,25,23,21,18,16,14,12,10,9,7,6,4,3,2,1,
						1,0,0,0,0,0,0,0,1,1,2,3,4,6,7,9,10,12,14,16,18,21,23,
						25,28,31,33,36,39,42,45,48,51,54,57,60};
main()
{

while(1)
{
i++;
if(i==128)i=0;
P1=Sin[i];
}
}