真诚为您提供优质参考资料，若有不当之处，请指正1.电路图2.锯齿波3.三角波4．矩形波5.正弦波6.C代码#include #include #define DAC0832 XBYTE[0x7fff]#define uchar unsigned char#define uint unsigned int//生成波形期间对应的按键要一直按下sbit key1=P1^0;sbit key2=P1^1;sbit key3=P1^2;sbit key4=P1^3;//下面的编码定义是由正弦波数据生成器所生成，可以百度下载uchar code sin_tab[]={ 0x7F,0x82,0x85,0x88,0x8B,0x8F,0x92,0x95,0x98,0x9B,0x9E,0xA1,0xA4,0xA7,0xAA,0xAD,0xB0,0xB3,0xB6,0xB8,0xBB,0xBE,0xC1,0xC3,0xC6,0xC8,0xCB,0xCD,0xD0,0xD2,0xD5,0xD7,0xD9,0xDB,0xDD,0xE0,0xE2,0xE4,0xE5,0xE7,0xE9,0xEB,0xEC,0xEE,0xEF,0xF1,0xF2,0xF4,0xF5,0xF6,0xF7,0xF8,0xF9,0xFA,0xFB,0xFB,0xFC,0xFD,0xFD,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFD,0xFD,0xFC,0xFB,0xFB,0xFA,0xF9,0xF8,0xF7,0xF6,0xF5,0xF4,0xF2,0xF1,0xEF,0xEE,0xEC,0xEB,0xE9,0xE7,0xE5,0xE4,0xE2,0xE0,0xDD,0xDB,0xD9,0xD7,0xD5,0xD2,0xD0,0xCD,0xCB,0xC8,0xC6,0xC3,0xC1,0xBE,0xBB,0xB8,0xB6,0xB3,0xB0,0xAD,0xAA,0xA7,0xA4,0xA1,0x9E,0x9B,0x98,0x95,0x92,0x8F,0x8B,0x88,0x85,0x82,0x7F,0x7C,0x79,0x76,0x73,0x6F,0x6C,0x69,0x66,0x63,0x60,0x5D,0x5A,0x57,0x54,0x51,0x4E,0x4B,0x48,0x46,0x43,0x40,0x3D,0x3B,0x38,0x36,0x33,0x31,0x2E,0x2C,0x29,0x27,0x25,0x23,0x21,0x1E,0x1C,0x1A,0x19,0x17,0x15,0x13,0x12,0x10,0x0F,0x0D,0x0C,0x0A,0x09,0x08,0x07,0x06,0x05,0x04,0x03,0x03,0x02,0x01,0x01,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x01,0x02,0x03,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0A,0x0C,0x0D,0x0F,0x10,0x12,0x13,0x15,0x17,0x19,0x1A,0x1C,0x1E,0x21,0x23,0x25,0x27,0x29,0x2C,0x2E,0x31,0x33,0x36,0x38,0x3B,0x3D,0x40,0x43,0x46,0x48,0x4B,0x4E,0x51,0x54,0x57,0x5A,0x5D,0x60,0x63,0x66,0x69,0x6C,0x6F,0x73,0x76,0x79,0x7C};//void delayms(uint xms){ uint i,j; for (i=xms;i>0;i--) for (j=110;j>0;j--) ;}//void juxing(){ uchar i; for (i=0;i<0xff;i++) DAC0832=0; for (i=0;i<0xff;i++) DAC0832=0xff;}//void sanjiao(){ uchar i; for (i=0;i<0xff;i++) DAC0832=i; for (i=0xff;i>0;i--) DAC0832=i;}//void juchi(){ uchar i; for (i=0;i<0xff;i++) { DAC0832=i; }}//void sin_func(){ uchar i; for (i=0;i<0xff;i++) { DAC0832=sin_tab[i]; if(i==0xff) i=0; }}//void main (){ while (1) { if(key1==0) { delayms(10);//延时去抖动 if(key1==0) { while (!key1) { juxing(); } } } // if(key2==0) { delayms(10); if(key2==0) { while (!key2) { sanjiao(); } } } // if(key3==0) { delayms(10); if(key3==0) { while (!key3) { juchi(); } } } // if(key4==0) { delayms(10); if(key4==0) { while (!key4) { sin_func(); } } } }} / 。
