單片機(jī)實(shí)驗(yàn)及proteus仿真C語言

1、單片機(jī)實(shí)驗(yàn)：說明，以下是我整理了一些在學(xué)習(xí)單片機(jī)的過程中所做的一些典型的實(shí)驗(yàn)，所有程序均用c語言編寫，為了方便，在仿真時(shí)電路能省的都被省掉了（比如省去晶振用了外部時(shí)鐘）。程序不一定很優(yōu)化，也不一定完全沒有錯(cuò)誤，僅供大家參考。希望大家一塊學(xué)習(xí)！第一：i/o操作篇實(shí)驗(yàn)一.閃爍的燈圖:程序:#include at89x51.hvoid delay02s();void main(void)while(1) p1_0=0; /p1.0=0 led點(diǎn)亮 delay02s(); /延時(shí)0.2s p1_0=1; /p1.0=1 led熄滅 delay02s(); /延時(shí)0.2s void delay02s(v

2、oid) /延時(shí)0.2s的函數(shù)unsigned char i,j,k; for(j=20;j0;j-) for(i=20;i=0;i-) for(k=248;k=0;k-); 實(shí)驗(yàn)二:模擬開關(guān)程序:#include at89x51.hvoid main() while(1) if (p1_7=0) p1_0 = 0;/key按下p1_7=0,led點(diǎn)亮 else if ( p1_7=1) p1_0 = 1;/key彈起p1_7=1,led熄滅 實(shí)驗(yàn)三: 多路開關(guān)程序:#include at89x51.hvoid main()while(1) p1_0 = p1_7; p1_1 = p1_6;

3、p1_2 = p1_5; p1_3 = p1_4; 實(shí)驗(yàn)四:跑馬燈(一)圖:程序:/單一燈的左移右移/八個(gè)發(fā)光二極管l1l8分別接在單片機(jī)的p1.0p1.7接口上/輸出“0”時(shí)，發(fā)光二極管亮，開始時(shí)p1.0p1.1p1.2p1.3p1.7p1.6p1.0亮，重復(fù)循環(huán)。#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(

4、)unsigned int i,j,k; for(i=0;i20;i+) for(j=0;j20;j+) for(k=0;k248;k+);實(shí)驗(yàn)五:跑馬燈(二、查表方式)圖：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, /

5、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; /閃爍兩次 unsigned char a; while(1) for (a=0;a0;i-) for(j=20;j0;j-) for(k=248;k0;k-);實(shí)驗(yàn)六：led計(jì)數(shù)程序：#include void delay02s(); void main() unsigned char code table=0x40,0xf9,0x24,0x30,0x19,0x12,0x03,0xf8,0x00,0x18; unsigned cha

6、r disp; while(1) for(disp=0;disp0;i-) for(j=20;j0;j-) for(k=248;k0;k-); 實(shí)驗(yàn)七：二進(jìn)制計(jì)數(shù)程序：/用四個(gè)發(fā)光二極管模擬計(jì)數(shù)點(diǎn)擊開關(guān)次數(shù).#include at89x51.hvoid delay10ms();void main()p0=0xff; while(1) /*/ if(p0_7=1) /按鍵按下 delay10ms(); if(p0_7=0) /按鍵彈起,此時(shí)燈亮. p0=p0-1; /*/ if(p0_7=0) /按鍵彈起 delay10ms(); if(p0_7=1) /按鍵按下,此時(shí)燈亮. p0=p0-1;

7、/ void delay10ms() unsigned char i,j; for(i=20;i0;i-) for(j=248;j0;j-); 驗(yàn)八：一鍵多用程序：#include at89x51.hvoid delay10ms();void delay02s();void main()unsigned char id=0; while(1) if(p1_7=0) /按鍵彈起 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; ca

8、se 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();實(shí)驗(yàn)九：0099計(jì)數(shù)程序：/0099計(jì)數(shù)器#include at89x51.hvoid delay1s();void m

9、ain()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-);實(shí)驗(yàn)十：可預(yù)置數(shù)加減計(jì)數(shù)器程序：/k1(p3_7)加計(jì)數(shù).k2(p3_6)頭減計(jì)數(shù).#include at89x51.hvoid delay0

10、2s();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-); 實(shí)驗(yàn)十一：圖：共陰led程序：/開關(guān)

11、按下時(shí)顯示12345,開關(guān)彈起時(shí)顯示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=

12、(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-); 實(shí)驗(yàn)十二、4*4鍵盤圖：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(

13、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;

14、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

15、(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=1

16、2;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-); 實(shí)驗(yàn)十三 lcd原理圖:程序:#include at89x52.h#define lcd_rs p3_2#define lcd_rw p3_1#define lcd

17、_en p3_0#define lcd_data p1void writecmd(int a) /寫控制字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) /顯示字符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) /顯示字符串writecmd(addr); do writedata(*str); str+; while(*str!=0); /=lcd初始化= void lcdinit() writecmd(0x38);/8位,兩行,5x7字型 (控制字001 d1 d2 d3 x x , 其中 d1:數(shù)據(jù)長(zhǎng)度選擇(8位或4位),d2:單雙列選擇,d3:5x10或5x7字型選擇) writecmd(0x08); /關(guān)閉