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1、简单信号发生器源 程序 C 语言代码#include#include#include#define DA0832 XBYTE0Xa000#define uchar unsigned char#define S1 XBYTE0X0000#define S2 XBYTE0X2000#define S3 XBYTE0X4000 uchar code tab10=0 x3f,0 x06,0 x5b,0 x4f,0 x66,0 x6d,0 x7d,0 x07,0 x7f,0 x6f;uchar code tosin256=0 x80,0 x83,0 x86,0 x89,0 x8d,0 x90,0 x93
2、,0 x96,0 x99,0 x9c,0 x9f,0 xa2,0 xa5,0 xa8,0 xab,0 xae,0 xb1,0 xb4,0 xb7,0 xba,0 xbc,0 xbf,0 xc2,0 xc5,0 xc7,0 xca,0 xcc,0 xcf,0 xd1,0 xd4,0 xd6,0 xd8,0 xda,0 xdd,0 xdf,0 xe1,0 xe3,0 xe5,0 xe7,0 xe9,0 xea,0 xec,0 xee,0 xef,0 xf1,0 xf2,0 xf4,0 xf5,0 xf6,0 xf7,0 xf8,0 xf9,0 xfa,0 xfb,0 xfc,0 xfd,0 xfd
3、,0 xfe,0 xff,0 xff,0 xff,0 xff,0 xff,0 xff,0 xff,0 xff,0 xff,0 xff,0 xff,0 xff,0 xfe,0 xfd,0 xfd,0 xfc,0 xfb,0 xfa,0 xf9,0 xf8,0 xf7,0 xf6,0 xf5,0 xf4,0 xf2,0 xf1,0 xef,0 xee,0 xec,0 xea,0 xe9,0 xe7,0 xe5,0 xe3,0 xe1,0 xde,0 xdd,0 xda,0 xd8,0 xd6,0 xd4,0 xd1,0 xcf,0 xcc,0 xca,0 xc7,0 xc5,0 xc2,0 xbf
4、,0 xbc,0 xba,0 xb7,0 xb4,0 xb1,0 xae,0 xab,0 xa8,0 xa5,0 xa2,0 x9f,0 x9c,0 x99,0 x96,0 x93,0 x90,0 x8d,0 x89,0 x86,0 x83,0 x80,0 x80,0 x7c,0 x79,0 x76,0 x72,0 x6f,0 x6c,0 x69,0 x66,0 x63,0 x60,0 x5d,0 x5a,0 x57,0 x55,0 x51,0 x4e,0 x4c,0 x48,0 x45,0 x43,0 x40,0 x3d,0 x3a,0 x38,0 x35,0 x33,0 x30,0 x2e
5、,0 x2b,0 x29,0 x27,0 x25,0 x22,0 x20,0 x1e,0 x1c,0 x1a,0 x18,0 x16,0 x15,0 x13,0 x11,0 x10,0 x0e,0 x0d,0 x0b,0 x0a,0 x09,0 x08,0 x07,0 x06,0 x05,0 x04,0 x03,0 x02,0 x02,0 x01,0 x00,0 x00,0 x00,0 x00,0 x00,0 x00,0 x00,0 x00,0 x00,0 x00,0 x00,0 x00,0 x01,0 x02,0 x02,0 x03,0 x04,0 x05,0 x06,0 x07,0 x08
6、,0 x09,0 x0a,0 x0b,0 x0d,0 x0e,0 x10,0 x11,0 x13,0 x15,0 x16,0 x18,0 x1a,0 x1c,0 x1e,0 x20,0 x22,0 x25,0 x27,0 x29,0 x2b,0 x2e,0 x30,0 x33,0 x35,0 x38,0 x3a,0 x3d,0 x40,0 x43,0 x45,0 x48,0 x4c,0 x4e ,0 x51,0 x55,0 x57,0 x5a,0 x5d,0 x60,0 x63,0 x66,0 x69,0 x6c,0 x6f,0 x72,0 x76,0 x79,0 x7c,0 x80;ucha
7、r fun=0,b=0,c=0,d=0,tl,th;void key1(void);void key2(void);void key3(void);void key4(void);void judge(void);void main(void)名师资料总结-精品资料欢迎下载-名师精心整理-第 1 页，共 4 页 -TMOD=0X01;TR0=1;th=0 xff;tl=0 xd0;TH0=th;TL0=tl;ET0=1;EA=1;while(1)judge();void judge(void)uchar line,row,de1,de2,keym;P1=0 x0f;keym=P1;if(key
8、m=0 x0f)return;for(de1=0;de1200;de1+)for(de2=0;de2125;de2+);P1=0 x0f;keym=P1;if(keym=0 x0f)return;P1=0 x0f;line=P1;P1=0 xf0;row=P1;line=line+row;/*存放特征键值*/if(line=0 xde)key1();if(line=0 x7e)key2();if(line=0 xbd)key3();if(line=0 x7d)key4();void key1(void)/键选择发波类型,1 为正弦波,2 为三角波,3 为方波 fun+;if(fun=4)fun
9、=0 x00;名师资料总结-精品资料欢迎下载-名师精心整理-第 2 页，共 4 页 -void key2(void)/键加大频率 tl+;if(tl=0 x1f)th+;void key3(void)/键减小频率 tl-;if(tl=0 x00)th-;void key4(void)/键显示频率 double t;int f;TR0=0;/的区别t=(65535-th*256-tl)*0.4;f=(int)(1000/t);S3=tabf%10;f=f/10;S2=tabf%10;f=f/10;if(f=0)S1=0;else S1=tabf;TR0=1;void time0_int(void)interrupt 1/中断服务 程序 TR0=0;if(fun=1)DA0832=tosin;/正弦波b+;else if(fun=2)/三角波 if(c128)DA0832=c;else DA0832=255-c;c+;else if(fun=3)/方波 d+;名师资料总结-精品资料欢迎下载-名师精心整理-第 3 页，共 4 页 -if(d=128)DA0832=0 x00;else DA0832=0 xff;TH0=th;TL0=tl;TR0=1;名师资料总结-精品资料欢迎下载-名师精心整理-第 4 页，共 4 页 -