天祥单片机C语言编程汇总.doc

单片机C语言汇总/AD编程/拧动电位器，会在数码管的前三位显示0-255之间的数值。这就是把模拟电压转换成数字信号。/有些拧动电位器后数码管数可能不会动态变化，请用户按下实验板上的S22复位按键可更新数据/这种显象产生的原因是和AD芯片自身的一些特性有关。#include#include #define uint unsigned int#define uchar unsigned charsbit adrd=P37; /IO口定义sbit adwr=P36;sbit diola=P25;sbit dula=P26;sbit wela=P27;unsigned char j,k,adval;void delay(unsigned char i)/延时程序 for(j=i;j0;j-) for(k=125;k0;k-);uchar code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,/数码管编码 0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71;void display(uchar bai_c,uchar sh_c,uchar g_c)/显示程序 P0=tablebai_c;/显示百位 dula=1; dula=0; P0=0xfe; wela=1; wela=0; delay(5); dula=0; P0=tablesh_c;/显示十位 dula=1; dula=0; wela=0; P0=0xfd; wela=1; wela=0; delay(5); P0=tableg_c;/显示个位 dula=1; dula=0; P0=0xfb; wela=1; wela=0; delay(5);void main()/主程序 uchar a,A1,A2,A2t,A3; while(1) wela=1; P0=0; /选通ADCS adwr=0;/AD写入（随便写个什么都行，主要是为了启动AD转换） _nop_(); adwr=1; P0=0xff; /关闭ADCS delay(10); wela=0; /关闭有AD片选信号锁存器的锁存端以防止在操作数码管时使AD的片选发生变化 for(a=20;a0;a-) /需要注意的是ADC0804在写和读之间的时间间隔要足够长否则无法读出数据 /这里把显示部分放这里的原因也是为了增加写读之间的时间间隔 display(A1,A2,A3); /送去显示各位。 wela=1; /重新打开有AD片选信号锁存器的锁存端 P1=0xff; /读取P1口之前先给其写全1 P0=0; /选通ADCS adrd=0; /AD读使能 adval=P1;/AD数据读取赋给P1口 adrd=1; P0=0xff; /关闭ADCS adwr=0; P1=adval; /同时把AD的值送八个发光二极显示 A1=adval/100;/分出百，十，和个位 A2t=adval%100; A2=A2t/10; A3=A2t%10; ;/4*4键盘检测程序,按下键后相应的代码显示在数码管上#includesbit beep=P23;sbit dula=P26;sbit wela=P27; unsigned char i=100;unsigned char j,k,temp,key;void delay(unsigned char i) for(j=i;j0;j-) for(k=125;k0;k-);unsigned char code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d, 0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71;display(unsigned char num) P0=tablenum; / P0=0xff; dula=1; dula=0; P0=0xc0; wela=1; wela=0;void main() dula=0; wela=0; while(1) P3=0xfe; temp=P3; temp=temp&0xf0; if(temp!=0xf0) delay(10); if(temp!=0xf0) temp=P3; switch(temp) case 0xee: key=0; break; case 0xde: key=1; break; case 0xbe: key=2; break; case 0x7e: key=3; break; while(temp!=0xf0) temp=P3; temp=temp&0xf0; beep=0; beep=1; display(key); / P0=tablekey; /* P0=0xff; dula=1; while(i-); dula=0; P0=0xc0; wela=1; wela=0; dula=0; wela=0; P0=0xff; dula=1; dula=0; P0=0xc5; wela=1; wela=0; */ P1=0xfe; P3=0xfd; temp=P3; temp=temp&0xf0; if(temp!=0xf0) delay(10); if(temp!=0xf0) temp=P3; switch(temp) case 0xed: key=4; break; case 0xdd: key=5; break; case 0xbd: key=6; break; case 0x7d: key=7; break; while(temp!=0xf0) temp=P3; temp=temp&0xf0; beep=0; beep=1; display(key);/* P0=tablekey; dula=1; / while(100-); dula=0; P0=0xc0; wela=1; wela=0; */ P1=0xfc; P3=0xfb; temp=P3; temp=temp&0xf0; if(temp!=0xf0) delay(10); if(temp!=0xf0) temp=P3; switch(temp) case 0xeb: key=8; break; case 0xdb: key=9; break; case 0xbb: key=10; break; case 0x7b: key=11; break; while(temp!=0xf0) temp=P3; temp=temp&0xf0; beep=0; beep=1; display(key); /* P0=tablekey; dula=1; / while(100-); dula=0; P0=0xc0; wela=1; wela=0; */ P1=0xf8; P3=0xf7; temp=P3; temp=temp&0xf0; if(temp!=0xf0) delay(10); if(temp!=0xf0) temp=P3; switch(temp) case 0xe7: key=12; break; case 0xd7: key=13; break; case 0xb7: key=14; break; case 0x77: key=15; break; while(temp!=0xf0) temp=P3; temp=temp&0xf0; beep=0; beep=1; display(key); /* P0=tablekey; dula=1; / while(100-); dula=0; P0=0xc0; wela=1; wela=0; */ P1=0xf0; /十四.用液晶显示的一个时钟#include#define uchar unsigned char #define uint unsigned intsbit dula=P26;sbit wela=P27;sbit rs=P35;sbit lcden=P34;sbit s1=P30;sbit s2=P31;sbit s3=P32;sbit rd=P37;uchar count,s1num;char miao,shi,fen;uchar code table= 2007-7-30 MON;uchar code table1= 00:00:00;void delay(uint z)uint x,y;for(x=z;x0;x-)for(y=110;y0;y-);void write_com(uchar com)rs=0;lcden=0;P0=com;delay(5);lcden=1;delay(5);lcden=0;void write_date(uchar date)rs=1;lcden=0;P0=date;delay(5);lcden=1;delay(5);lcden=0;void init()uchar num;dula=0;wela=0;lcden=0;/fen=59;/miao=53;/shi=23;write_com(0x38);write_com(0x0c);write_com(0x06);write_com(0x01);write_com(0x80);for(num=0;num15;num+)write_date(tablenum);delay(5);write_com(0x80+0x40);for(num=0;num12;num+)write_date(table1num);delay(5);TMOD=0x01;TH0=(65536-50000)/256;TL0=(65536-50000)%256;EA=1;ET0=1;TR0=1;void write_sfm(uchar add,uchar date)uchar shi,ge;shi=date/10;ge=date%10;write_com(0x80+0x40+add);write_date(0x30+shi);write_date(0x30+ge);void keyscan()rd=0;if(s1=0)delay(5);if(s1=0)s1num+;while(!s1);if(s1num=1)TR0=0;write_com(0x80+0x40+10);write_com(0x0f);if(s1num=2)write_com(0x80+0x40+7);if(s1num=3)write_com(0x80+0x40+4);if(s1num=4)s1num=0;write_com(0x0c);TR0=1;if(s1num!=0)if(s2=0)delay(5);if(s2=0)while(!s2);if(s1num=1)miao+;if(miao=60)miao=0;write_sfm(10,miao);write_com(0x80+0x40+10);if(s1num=2)fen+;if(fen=60)fen=0;write_sfm(7,fen);write_com(0x80+0x40+7);if(s1num=3)shi+;if(shi=24)shi=0;write_sfm(4,shi);write_com(0x80+0x40+4);if(s3=0)delay(5);if(s3=0)while(!s3);if(s1num=1)/*if(miao=0)miao=59;write_sfm(10,miao);write_com(0x80+0x40+10);*/miao-;if(miao=-1)miao=59;write_sfm(10,miao);write_com(0x80+0x40+10);if(s1num=2)fen-;if(fen=-1)fen=59;write_sfm(7,fen);write_com(0x80+0x40+7);if(s1num=3)shi-;if(shi=-1)shi=23;write_sfm(4,shi);write_com(0x80+0x40+4);void main()init();while(1)keyscan();/while(1);void timer0() interrupt 1TH0=(65536-50000)/256;TL0=(65536-50000)%256;count+;if(count=18)count=0;miao+;if(miao=60)miao=0;fen+;if(fen=60)fen=0;shi+;if(shi=24)shi=0;write_sfm(4,shi);write_sfm(7,fen);write_sfm(10,miao);/试验AT24C02EEPROM芯片程序#include#include #define uint unsigned int#define uchar unsigned charunsigned char sec; /定义计数值，每过1秒，sec加1unsigned int tcnt; /定时中断次数bit write=0; /写24C08的标志；sbit sda=P20; /IO口定义sbit scl=P21;sbit dula=P26;sbit wela=P27;unsigned char j,k;void delay(unsigned char i)/延时程序 for(j=i;j0;j-) for(k=125;k0;k-);uchar code table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,/数码管编码 0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71;void display(uchar bai_c,uchar sh_c)/显示程序 dula=0; P0=tablebai_c;/显示百位 dula=1; dula=0; wela=0; P0=0x7e; wela=1; wela=0; delay(5); dula=0; P0=tablesh_c;/显示十位 dula=1; dula=0; wela=0; P0=0x7d; wela=1; wela=0; delay(5);/24C08读写驱动程序/void delay1(unsigned char x) unsigned int i; for(i=0;ix;i+); ;void flash() ; ; void x24c08_init() /24c08初始化子程序 scl=1; flash(); sda=1; flash();void start() /启动I2C总线sda=1; flash(); scl=1; flash(); sda=0; flash(); scl=0; flash();void stop() /停止I2C总线sda=0; flash(); scl=1; flash(); sda=1; flash();void writex(unsigned char j) /写一个字节 unsigned char i,temp; temp=j; for (i=0;i8;i+) temp=temp1; scl=0; flash(); sda=CY; flash(); scl=1; flash(); scl=0; flash(); sda=1; flash();unsigned char readx() /读一个字节 unsigned char i,j,k=0; scl=0; flash(); sda=1; for (i=0;i8;i+) flash(); scl=1; flash(); if (sda=1) j=1; else j=0; k=(k1)|j; scl=0; flash(); return(k);void clock() /I2C总线时钟 unsigned char i=0; scl=1; flash(); while (sda=1)&(i255)i+; scl=0; flash();/从24c02的地址address中读取一个字节数据/unsigned char x24c08_read(unsigned char address) unsigned char i; start(); writex(0xa0); clock(); writex(address); clock(); start(); writex(0xa1); clock(); i=readx(); stop(); delay1(10); return(i);/向24c02的address地址中写入一字节数据info/void x24c08_write(unsigned char address,unsigned char info) EA=0; start(); writex(0xa0); clock(); writex(address); clock(); writex(info); clock(); stop(); EA=1; delay1(50);void t0(void) interrupt 1 using 0 /定时中断服务函数TH0=(65536-50000)/256; /对TH0 TL0赋值TL0=(65536-50000)%256; /重装计数初值tcnt+; /每过250ust tcnt加一if(tcnt=20) /计满20次（1秒）时 tcnt=0; /重新再计 sec+; write=1; /1秒写一次24C08 if(sec=100) /定时100秒，在从零开始计时 sec=0; void main()unsigned char i;TMOD=0x01; /定时器工作在方式1ET0=1; EA=1;x24c08_init(); /初始化24C08sec=x24c08_read(2);/读出保存的数据赋于secTH0=(65536-50000)/256; /对TH0 TL0赋值TL0=(65536-50000)%256; /使定时器0.05秒中断一次TR0=1; /开始计时 while(1) i=10; while(i-) display(sec/10,sec%10); if(write=1) /判断计时器是否计时一秒 write=0; /清零 x24c08_write(2,sec); /在24c08的地址2中写入数据sec /*/* */* ME300B单片机开发系统演示程序 - 128*64LCD显示红外遥控器键值显示 */* */;* LCD型号：TS12864A-3（带汉字库）或兼容型号 控制器ST7920 */;* MCU:AT89S52 ,晶体频率：11.0592MHz */* */ /*【版权】Copyright(C)伟纳电子 All Rights Reserved */*【声明】此程序仅用于学习与参考，引用请注明版权和作者信息！ */* */*/#include #include #define uchar unsigned char#define uint unsigned int/*TS12864A-3 端口定义*/#define LCD_data P0 /数据口sbit LCD_RS = P35; /寄存器选择输入 sbit LCD_RW = P36; /液晶读/写控制sbit LCD_EN = P34; /液晶使能控制sbit LCD_PSB = P37; /串/并方式控制sbit wela = P26;sbit dula = P27;uchar code dis1 = 天祥电子;uchar code dis2 = ;uchar code dis3 = TX-1C 学习板 ;uchar code dis4 = 是您最好的选择！ ;#define delayNOP(); _nop_();_nop_();_nop_();_nop_();uchar IRDIS2;uchar IRCOM4;void delay0(uchar x); /x*0.14MSvoid beep();void dataconv();void lcd_pos(uchar X,uchar Y); /确定显示位置/*/* */* 延时函数 */* */*/void delay(int ms) while(ms-) uchar i; for(i=0;i250;i+) _nop_(); _nop_();_nop_();_nop_(); /*/* */*检查LCD忙状态 */*lcd_busy为1时，忙，等待。lcd-busy为0时,闲，可写指令与数据。 */* */*/bit lcd_busy() bit result; LCD_RS = 0; LCD_RW = 1; LCD_EN = 1; delayNOP(); result = (bit)(P0&0x80); LCD_EN = 0; return(result); /*/* */*写指令数据到LCD */*RS=L，RW=L，E=高脉冲，D0-D7=指令码。 */* */*/void lcd_wcmd(uchar cmd) while(lcd_busy(); LCD_RS = 0; LCD_RW = 0; LCD_EN = 0; _nop_(); _nop_(); P0 = cmd; delayNOP(); LCD_EN = 1; delayNOP(); LCD_EN = 0; /*/* */*写显示数据到LCD */*RS=H，RW=L，E=高脉冲，D0-D7=数据。 */* */*/void lcd_wdat(uchar dat) while(lcd_busy(); LCD_RS = 1; LCD_RW = 0; LCD_EN = 0; P0 = dat; delayNOP(); LCD_EN = 1; delayNOP(); LCD_EN = 0; /*/* */* LCD初始化设定 */* */*/void lcd_init() LCD_PSB = 1; /并口方式 lcd_wcmd(0x34); /扩充指令操作 delay(5); lcd_wcmd(0x30); /基本指令操作 delay(5); lcd_wcmd(0x0C); /显示开，关光标 delay(5); lcd_wcmd(0x01); /清除LCD的显示内容 delay(5);/*/* */* 主程序 */* */*/ main(