单片机实验及proteus仿真_C语言.doc

单片机实验：说明，以下是我整理了一些在学习单片机的过程中所做的一些典型的实验，所有程序均用c语言编写，为了方便，在仿真时电路能省的都被省掉了（比如省去晶振用了外部时钟）。程序不一定很优化，也不一定完全没有错误，仅供大家参考。希望大家一块学习！第一：i/o操作篇实验一.闪烁的灯图:程序:#include at89x51.hvoid delay02s();void main(void)while(1) p1_0=0; /p1.0=0 led点亮 delay02s(); /延时0.2s p1_0=1; /p1.0=1 led熄灭 delay02s(); /延时0.2s void delay02s(void) /延时0.2s的函数unsigned char i,j,k; for(j=20;j0;j-) for(i=20;i=0;i-) for(k=248;k=0;k-); 实验二:模拟开关程序:#include at89x51.hvoid main() while(1) if (p1_7=0) p1_0 = 0;/key按下p1_7=0,led点亮 else if ( p1_7=1) p1_0 = 1;/key弹起p1_7=1,led熄灭 实验三: 多路开关程序:#include at89x51.hvoid main()while(1) p1_0 = p1_7; p1_1 = p1_6; p1_2 = p1_5; p1_3 = p1_4; 实验四:跑马灯(一)图:程序:/单一灯的左移右移/八个发光二极管l1l8分别接在单片机的p1.0p1.7接口上/输出“0”时，发光二极管亮，开始时p1.0p1.1p1.2p1.3p1.7p1.6p1.0亮，重复循环。#include at89x51.hvoid delay02s();void main()unsigned int a; while (1) p1=0xfe; delay02s(); for(a=7;a0;a-)/右移 p1=(p10;a-)/左移 p1=(p11)+0x80; delay02s(); void delay02s()unsigned int i,j,k; for(i=0;i20;i+) for(j=0;j20;j+) for(k=0;k248;k+);实验五:跑马灯(二、查表方式)图：程序：#include at89x51.hvoid delay02s(); void main()unsigned char table=0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f, /第一次,右移一行 0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f, /第二次,右移一行 0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe, /第一次,左移一行 0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe, /第二次,左移一行 0x00,0xff,0x00,0xff; /闪烁两次 unsigned char a; while(1) for (a=0;a0;i-) for(j=20;j0;j-) for(k=248;k0;k-);实验六：led计数程序：#include void delay02s(); void main() unsigned char code table=0x40,0xf9,0x24,0x30,0x19,0x12,0x03,0xf8,0x00,0x18; unsigned char disp; while(1) for(disp=0;disp0;i-) for(j=20;j0;j-) for(k=248;k0;k-); 实验七：二进制计数程序：/用四个发光二极管模拟计数点击开关次数.#include at89x51.hvoid delay10ms();void main()p0=0xff; while(1) /*/ if(p0_7=1) /按键按下 delay10ms(); if(p0_7=0) /按键弹起,此时灯亮. p0=p0-1; /*/ if(p0_7=0) /按键弹起 delay10ms(); if(p0_7=1) /按键按下,此时灯亮. p0=p0-1; / void delay10ms() unsigned char i,j; for(i=20;i0;i-) for(j=248;j0;j-); 验八：一键多用程序：#include at89x51.hvoid delay10ms();void delay02s();void main()unsigned char id=0; while(1) if(p1_7=0) /按键弹起 delay10ms(); if(p1_7=0) id+; if(id=4) id=0; while(p1_7=0); switch(id) case 0: p0_0=p0_0; delay02s(); break; case 1: p0_1=p0_1; delay02s(); break; case 2: p0_2=p0_2; delay02s(); break; case 3: p0_3=p0_3; delay02s(); break; void delay10ms()unsigned char i,k; for(i=20;i0;i-) for(k=248;k0;k-);void delay02s()unsigned char j; for(j=20;j0;j-) delay10ms();实验九：0099计数程序：/0099计数器#include at89x51.hvoid delay1s();void main()unsigned char code table=0xf9,0x24,0x30,0x19,0x12,0x03,0xf8,0x00,0x18,0x40; unsigned int high=9; unsigned int light=9; p0=tablelight; p2=tablehigh; delay1s(); while(1) for(light=0;light0;i-) for(j=20;j0;j-) for(k=248;k0;k-);实验十：可预置数加减计数器程序：/k1(p3_7)加计数.k2(p3_6)头减计数.#include at89x51.hvoid delay02s();void delay10ms();void main()p0=p2; while(1) if(p3_6=0) delay10ms(); if(p3_6=0) p0+; delay02s(); if(p3_7=0) delay10ms(); if(p3_7=0) p0-; delay02s(); void delay02s()unsigned char j; for(j=20;j0;j-) delay10ms();void delay10ms()unsigned char i,k; for(i=20;i0;i-) for(k=248;k0;k-); 实验十一：图：共阴led程序：/开关按下时显示12345,开关弹起时显示hello.#include void delay01ms();void main(void) unsigned char code table1=0xf9,0x24,0x30,0x19,0x12,0xff,0xff,0xff; unsigned char code table2=0x09,0x06,0xc7,0xc7,0x40,0xff,0xff,0xff; unsigned char i; while(1) p2=0xfe; if(p1_0=0) delay01ms(); if(p1_0=0) for(i=0;i8;i+) p0=table1i; p2=(p21)+1; else if(p1_0=1) delay01ms(); if(p1_0=1) for(i=0;i8;i+) p0=table2i; p2=(p20;a-) for(b=248;b0;b-); 实验十二、4*4键盘图：程序：#include at89x51.h void delay10ms();void main()unsigned char key; unsigned char table=0x40,0xf9,0x24,0x30,0x19,0x12,0x03,0xf8,0x00,0x18,0x08,0x00,0x46,0x40,0x06,0x0e, 0xff; while(1) p0=0xff; p3=0xff; p3_4=0; key=p3&0x0f; if(key!=0x0f) delay10ms(); key=p3&0x0f; if(key!=0x0f) switch(key) case 0x0e: key=0;break; case 0x0d: key=1;break; case 0x0b: key=2;break; case 0x07: key=3;break; p0=tablekey; key=key&0x0f; while(key!=0x0f) key=p3; key=key&0x0f; p3=0xff; p3_5=0; key=p3&0x0f; if(key!=0x0f) delay10ms(); key=p3&0x0f; if(key!=0x0f) switch(key) case 0x0e: key=4;break; case 0x0d: key=5;break; case 0x0b: key=6;break; case 0x07: key=7;break; p0=tablekey; key=key&0x0f; while(key!=0x0f) key=p3; key=key&0x0f; p3=0xff; p3_6=0; key=p3&0x0f; if(key!=0x0f) delay10ms(); key=p3&0x0f; if(key!=0x0f) switch(key) case 0x0e: key=8;break; case 0x0d: key=9;break; case 0x0b: key=10;break; case 0x07: key=11;break; p0=tablekey; key=key&0x0f; while(key!=0x0f) key=p3; key=key&0x0f; p3=0xff; p3_7=0; key=p3&0x0f; if(key!=0x0f) delay10ms(); key=p3&0x0f; if(key!=0x0f) switch(key) case 0x0e: key=12;break; case 0x0d: key=13;break; case 0x0b: key=14;break; case 0x07: key=15;break; p0=tablekey; key=key&0x0f; while(key!=0x0f) key=p3; key=key&0x0f; void delay10ms() unsigned int i,k; for(i=20;i0;i-) for(k=20;k0;k-); 实验十三 lcd原理图:程序:#include at89x52.h#define lcd_rs p3_2#define lcd_rw p3_1#define lcd_en p3_0#define lcd_data p1void writecmd(int a) /写控制字int i; for(i=2000;i0;i-); lcd_rs=0; lcd_rw=0; lcd_en=1; lcd_data=a; lcd_en=0;void writedata(char lcddata) /显示字符int i; for(i=2000;i0;i-); lcd_rs=1; lcd_rw=0; lcd_en=1; lcd_data=lcddata; lcd_en=0;void writestring(char addr,char *str) /显示字符串writecmd(addr); do writedata(*str); str+; while(*str!=0); /=lcd初始化= void lcdinit() writecmd(0x38);/8位,两行,5x7字型 (控制字001 d1 d2 d3 x x , 其中 d1:数据长度选择(8位或4位),d2:单双列选择,d3:5x10或5x7字型选择) writecmd(0x08); /关闭