自编程序模块.doc

头函数定义：#include#include#define uint unsigned int#define uchar unsigned char延时1m程序：void delay(uint z)uint x,y;for(x=z;x0;x-)for(y=61;y0;y-);数码管：位选择：uchar code table1= 0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f;共阴定义：uchar code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71共阳定义：uchar code table= 0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xc6,0xa1,0x86,0x8e;选择模块：switch(P3) case 0xfe:P1=table1;break;case 0xfd:P1=table2;break;case 0xfb:P1=table3;break;case 0xf7:P1=table4;break;case 0xef:P1=table5;break;case 0xdf:P1=table6;break;case 0xbf:P1=table7;break;case 0x7f:P1=table8;break;default:break; 数码管显示函数：void display(uchar bai,uchar shi,uchar ge)dula=1;P0=tablebai;dula=0;P0=0xff;/消隐wela=1;P0=0xfe;wela=0;delay(5);dula=1;P0=tableshi;dula=0;P0=0xff;/消隐wela=1;P0=0xfd;wela=0;delay（5);dula=1;P0=tablege;dula=0;P0=0xff;/消隐wela=1;P0=0xfb;wela=0;delay(5);数码管显示另一个模块：void Display(unsigned char FirstBit,unsigned char Num) unsigned char i; for(i=0;iNum;i+) DataPort=0; /清空数据，防止有交替重影 LATCH1=1; /段锁存 LATCH1=0; DataPort=dofly_WeiMai+FirstBit; /取位码 LATCH2=1; /位锁存 LATCH2=0; DataPort=TempData7-i; /取显示数据，段码 这里只需要 把扫描方向更换一下即可 LATCH1=1; /段锁存 LATCH1=0; Delay(200); / 扫描间隙延时，时间太长会闪烁，太短会造成重影 定时器：定时器0：Init()TMOD=0x01;/设置定时器0为工作方式1TH0=(65536-50000)/256;TL0=(65536-50000)%256;EA=1;/开总中断ET0=1;/开外定时器0中断TR0=1;/启动定时器0void timer0() interrupt 1 TH0=(65536-50000)/256;TL0=(65536-50000)%256; /开始写程序i+;if(i=16)定时器1：init()TMOD=0x03;/设置定时器1为工作方式1TH1=(65536-50000)/256;TL1=(65536-50000)%256;EA=1;/开总中断ET1=1;/开外定时器1中断TR1=1;/启动定时器1void timer1() interrupt 3 TH1=(65536-50000)/256;TL1=(65536-50000)%256; /开始写程序i+;if(i=16)中断0：init()EA=1;EX0=1;IT0=0;void INIT0() interrupt 0中断1：init()EA=1;EX1=1;IT1=0;void INIT1() interrupt 21602程序模块：void write_com(uchar com)/写指令lcdrs=0;/选择命令输入P0=com;delay(5);lcden=1;delay(5);lcden=0;void write_data(uchar date)/写数据lcdrs=1;/选择数据输入P0=date;delay(5);lcden=1;delay(5);lcden=0;void init()lcden=0;write_com(0x38);/显示模式设置16*2write_com(0x0e);/显示开，显示光标但不闪烁write_com(0x06);/写一个字符，光标加一write_com(0x01);/显示可以清屏write_com(0x80+0x10);/把指针设置到10后面键盘扫描函数：uchar ks()uchar val;P3=0xf0;if(P3!=0xf0)delay(10);if(P3!=0xf0)P3=0xfe;if(P3!=0xfe)val=P3&0xf0;val+=0x0e;while(P3!=0xfe)delay(10);while(P3!=0xfe)return val; P3=0xfd;if(P3!=0xfd)val=P3&0xf0;val+=0x0d;while(P3!=0xfd)delay(10);while(P3!=0xfd)return val; P3=0xfb;if(P3!=0xfb)val=P3&0xf0;val+=0x0b;while(P3!=0xfb)delay(10);while(P3!=0xfb)return val;P3=0xf7;if(P3!=0xf7)val=P3&0xf0;val+=0x0e;while(P3!=0xf7)delay(10);while(P3!=0xf7)return val;return 0xff;uchar kp()switch(ks()case 0x7e:return 0;break;case 0x7d:return 1;break;case 0x7b:return 2;break;case 0x77:return 3;break;case 0xbe:return 4;break;case 0xbd:return 5;break;case 0xbb:return 6;break;case 0xb7:return 7;break;case 0xde:return 8;break;case 0xdd:return 9;break;case 0xdb:return 10;break;case 0xd7:return 11;break;case 0xee:return 12;break;case 0xed:return 13;break;case 0xeb:return 14;break;case 0xe7:return 15;break;default:return 0xff;break;键盘函数扫描：uchar keyscan()P3=0xfe; /第一行temp=P3;temp=temp&0xf0;while(temp!=0xf0)delay(5);temp=P3;temp=temp&0xf0;while(temp!=0xf0)temp=P3;switch(temp)case 0xee:num=1;break;case 0xde:num=2;break;case 0xbe:num=3;break;case 0x7e:num=4;break;while(temp!=0xf0)temp=P3;temp=temp&0xf0;P3=0xfd; /第二行temp=P3;temp=temp&0xf0;while(temp!=0xf0)delay(5);temp=P3;temp=temp&0xf0;while(temp!=0xf0)temp=P3;switch(temp)case 0xed:num=5;break;case 0xdd:num=6;break;case 0xbd:num=7;break;case 0x7d:num=8;break;while(temp!=0xf0)temp=P3;temp=temp&0xf0;P3=0xfb; /第三行temp=P3;temp=temp&0xf0;while(temp!=0xf0)delay(5);temp=P3;temp=temp&0xf0;while(temp!=0xf0)temp=P3;switch(temp)case 0xeb:num=9;break;case 0xdb:num=10;break;case 0xbb:num=11;break;case 0x7b:num=12;break;while(temp!=0xf0)temp=P3;temp=temp&0xf0;P3=0xf7; /第四行temp=P3;temp=temp&0xf0;while(temp!=0xf0)delay(5);temp=P3;temp=temp&0xf0;while(temp!=0xf0)temp=P3;switch(temp)case 0xe7:num=13;break;case 0xd7:num=14;break;case 0xb7:num=15;break;case 0x77:num=16;break;while(temp!=0xf0)temp=P3;temp=temp&0xf0;return num;I2C总线子函数：void delay() ; void start() /开始信号sda=1;delay();scl=1;delay();sda=0;delay();void stop() /停止sda=0;delay();scl=1;delay();sda=1;delay();void respons() /应答uchar i;scl=1;delay();while(sda=1)&(i250)i+;scl=0;delay();void init()sda=1;delay();scl=1;delay();void write_byte(uchar date)uchar i,temp;temp=date;for(i=0;i8;i+)temp=temp1;scl=0; delay();sda=CY;delay();scl=1;delay();/scl=0; / delay();scl=0;delay();sda=1;delay();uchar read_byte()uchar i,k;scl=0;delay();sda=1;delay();for(i=0;i8;i+)scl=1;delay();k=(k0;a-) for(b=100;b0;b-);void write_add(uchar address,uchar date)start();write_byte(0xa0);respons