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1、单片机子程序集锦按ctrl+home回到首页按Ctrl并点击11录中的内容即可转到相应的页数整理：李辉寇巍巍姜欣目录-、各种头文件级定义1二、数码管及中断2三、髓3四、A/D与d/A转换7五、串口通信8六、1602液晶9七、IIC总线10一、各种头文件级定义#include#include#defineuintunsignedint#defineucharunsignedcharucharcodetable[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,
2、0x5e,0x79,0x71};//数码管显示0〜Fucharcodetable1[]={0xbf,0x86,0xdb,0xcf,0xe6,0xed,0xfd,0x87,0xff，0xef};//数码管加点显示0.-9.ucharcodetable2[]={Oxfe，Oxfd，Oxfb，Oxf7,Oxef,Oxdf};//控制数码管位选从做到右voiddelay(){；；}//短暂延时函数voiddelay(uintz)//延时MS函数，Z为延时的MS数{uintx,y;for(x=z;x>0;x—)for(y=l10;y>0;y-);}sbitwrite=0;//各种常见变量名对
3、应的端口号sbitsda=P2A0;sbitscl=P2Al;sbitbeep=P2A3;sbitwela=P2A7;sbitdula=P2A6;sbitdacs=P3A2;sbitlcden=P3A4;sbitlcdrs=P3A5;sbitadwr=P3A6;sbitadrd=P3A7;二、数码管及屮断voiddisplay(uchar)wela=l;P0=0xfe;wela=0;dula=l;P0=table[];dula=0;delay(l);}//数码管显示函数voidinit(){EA=1;EXO=1;IT0=0;}//外部中断0初始化函数voidinit(){TMOD=
4、0x01;TH0=(65536-50000)/256;TL0=(65536-50000)%256;EA=1;ETO=1;TR0=1;}//定时器0的初始化voidT0_()interrupt1{TH0=(65536-50000)/256;TL0=(65536-50000)%256;tt++;if(tt==2O)tt=O;num++;if(num==60);num=O;//晶振频率为12MHZ时计时器0中断，间隔1S三、键盘voidkeyscan(){P3=0xfe;temp=P3;temp二temp&OxfO;if(temp!=OxfO){delay(10);temp=P3;tem
5、p二temp&OxfO;if(temp!=OxfO){temp=P3;switch(temp){caseOxee:key=O;break;caseOxde:key=I;break;caseOxbe:key=2;break;case0x7e:key=3;break;}while(temp!=OxfO){temp=P3;temp=temp&OxfO;}display(key);P3=0xfd;temp=P3;temp=temp&OxfO;if(temp!=OxfO){delay(lO);temp=P3;temp=temp&OxfO;if(temp!=OxfO){temp=P3;swit
6、ch(temp){caseOxed:key=4;break;caseOxdd:key=5;break;caseOxbd:key=6;break;case0x7d:key=7;break;}while(temp!=OxfO){temp=P3;temp=temp&OxfO;}display(key);}P3=Oxfb;temp=P3;temp=temp&OxfO;if(temp!=OxfO)delay(lO);temp=P3;temp=temp&OxfO;if(temp!=OxfO)temp=P3;switch(temp)caseOxeb:key=8;break;caseOxdb:ke
7、y=9;break;caseOxbb:key=IO;break;case0x7b:key=11;break;}while(temp!=OxfO){temp=P3;temp二temp&OxfO;}display(key);}}P3=Oxf7;temp=P3;temp=temp&OxfO;if(temp!=OxfO){delay(lO);temp=P3;temp=temp&OxfO;if(temp!=OxfO){temp=P3;switch(temp)case0xe7:k
