ad.c

利用89s52外加da0832实现正弦波的产生

 #include<AT89X51.h>
unsigned char code tosin[256]; 
unsigned char i=0;
/*unsigned char code tosin[256]={
 0x80,0x83,0x86,0x89,0x8d,0x90,0x93,0x96,0x99,0x9c,0x9f,0xa2,0xa5,0xa8,0xab,0xae,0xb1,0xb4,0xb7,0xba,0xbc,0xbf,0xc2,0xc5
,0xc7,0xca,0xcc,0xcf,0xd1,0xd4,0xd6,0xd8,0xda,0xdd,0xdf,0xe1,0xe3,0xe5,0xe7,0xe9,0xea,0xec,0xee,0xef,0xf1,0xf2,0xf4,0xf5
,0xf6,0xf7,0xf8,0xf9,0xfa,0xfb,0xfc,0xfd,0xfd,0xfe,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xfd
,0xfd,0xfc,0xfb,0xfa,0xf9,0xf8,0xf7,0xf6,0xf5,0xf4,0xf2,0xf1,0xef,0xee,0xec,0xea,0xe9,0xe7,0xe5,0xe3,0xe1,0xde,0xdd,0xda
,0xd8,0xd6,0xd4,0xd1,0xcf,0xcc,0xca,0xc7,0xc5,0xc2,0xbf,0xbc,0xba,0xb7,0xb4,0xb1,0xae,0xab,0xa8,0xa5,0xa2,0x9f,0x9c,0x99
,0x96,0x93,0x90,0x8d,0x89,0x86,0x83,0x80,0x80,0x7c,0x79,0x76,0x72,0x6f,0x6c,0x69,0x66,0x63,0x60,0x5d,0x5a,0x57,0x55,0x51
,0x4e,0x4c,0x48,0x45,0x43,0x40,0x3d,0x3a,0x38,0x35,0x33,0x30,0x2e,0x2b,0x29,0x27,0x25,0x22,0x20,0x1e,0x1c,0x1a,0x18,0x16
,0x15,0x13,0x11,0x10,0x0e,0x0d,0x0b,0x0a,0x09,0x08,0x07,0x06,0x05,0x04,0x03,0x02,0x02,0x01,0x00,0x00,0x00,0x00,0x00,0x00
,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x02 ,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0d,0x0e,0x10,0x11,0x13,0x15
,0x16,0x18,0x1a,0x1c,0x1e,0x20,0x22,0x25,0x27,0x29,0x2b,0x2e,0x30,0x33,0x35,0x38,0x3a,0x3d,0x40,0x43,0x45,0x48,0x4c,0x4e 
,0x51,0x55,0x57,0x5a,0x5d,0x60,0x63,0x66 ,0x69,0x6c,0x6f,0x72,0x76,0x79,0x7c,0x80 };  */
unsigned char code tosin[256]={
 128,131,134,137,141,144,147,150,153,156,159,162,165,168,171,174,177,180,183
,186,188,191,194,196,199,202,204,207,209,212,214,216,219,221,223,225,227,229
,231,233,234,236,238,239,241,242,244,245,246,247,249,250,250,251,252,253,254
,254,255,255,255,255,255,255,255,255,255,255,255,255,255,254,254,253,252,251
,250,250,249,247,246,245,244,242,241,239,238,236,234,233,231,229,227,225,223
,221,219,216,214,212,209,207,204,202,199,196,194,191,188,186,183,180,177,174
,171,168,165,162,159,156,153,150,147,144,141,137,134,131,128,125,122,119,115
,112,109,106,103,100, 97, 94, 91, 88, 85, 82, 79, 76, 73, 70, 68, 65, 62, 60
, 57, 54, 52, 49, 47, 44, 42, 40, 37, 35, 33, 31, 29, 27, 25, 23, 22, 20, 18
, 17, 15, 14, 12, 11, 10,  9,  7,  6,  6,  5,  4,  3,  2,  2,  1,  1,  1,  0
,  0,  0,  0,  0,  0,  0,  1,  1,  1,  2,  2,  3,  4,  5,  6,  6,  7,  9, 10
, 11, 12, 14, 15, 17, 18, 20, 22, 23, 25, 27, 29, 31, 33, 35, 37, 40, 42, 44
, 47, 49, 52, 54, 57, 60, 62, 65, 68, 70, 73, 76, 79, 82, 85, 88, 91, 94, 97
,100,103,106,109,112,115,119,122,125};
	 f0()interrupt 1 using 1
	 {TH0=0xFC;
	  TL0=0XEF;
	  P1=tosin[i];
      i++;
	 }
	 void main(void)
	 {
      TMOD=0x01;
      TH0=0xFC;
	  TL0=0XEF;
	  EA=1;
      ET0=1;
	  TR0=1;
	  while(1)
	  {
	  };
	 }