单片机程序源代码

1、百度文库让每个人平等地提升自我第二章任务一：闪烁广告灯的设计利用89c51单片机的端口控制两个LED (DO和DD,编写程序,实现两个LED互闪。#includc#define uint unsigned int#define uchar unsigned charsbit LED1=POAO;sbit LED2=POA1;void delayms(uint ms)(uint i;while(ms-)(for(i=0;iD3-D4-D5 -D6-D7 ,然后再点亮D7-D6-D5-D4 -D3-D2-Dl-D0,重复循环。#includeinclude #dcfine uint unsigne

2、d int#dcfine uchar unsigned charuint i;uchar temp;uint a8=0xfe,0xfd.0xfb,0xf7,0xet0xdf.0xbL0x7f);void delayms(uint ms)(while(ms-) uintj;for(j=0;j120;j+);)void inain()(while(l)(PO=Oxfe;while(P0!=0x7f) (/Pl=temp;/delayms(500);PO=_croljPO,l); de!ayms(25O);)temp=0x7f;while(P0!=0xfe)(P0=temp;delayms(500)

3、;temp=_cror_(temp, 1);)任务三：拉幕式与闭幕式广告灯的设计利用89C51单片机的P0端口实现8个LED D0D7的拉幕式与闭幕式广告灯设计。拉幕式：开始D0D7全灭，延时片刻后首先D3和D4亮，其次是D2和D5亮，再是D1 和D6亮，最后是DO和D7亮。闭幕式：开始D0D7全亮，延时片刻后首先DO和D7火，其次是D1和D6火，再是D2 和D5灭，最后是D3和D4灭。#include#dcfine uint unsigned int#dcfine uchar unsigned charuchar code table= 0xe7,0xc3,0x81,0x00);void d

4、elay(uint x)(uint ij;for(i=x;i0;i-)for(j=120;j0;j-);)void inain()2百度文库让每个人平等地提升自我uint i;while(l)Pl=Oxff;delay(500);for(i=0;i0;i-)(Pl=tablei-1;delay(500);)任务四：复杂广告灯的设计利用89c51单片机的端口实现8个LED (D0-D7)复杂广告灯的控制，要求显示规律为： 正向流水会反向流水。隔灯闪烁3次-高四盏、低四盏闪烁2次-隔两盏闪烁3次，再重复 循环。#include#define uint unsigned int#includevoi

5、d delayms(uint ms)(uint i;while(ms-)for(i=0;i110;i+);)void main()(uint ijAx2=0xaa,0xff,yy2=0xf0,0x0f,zz2=0xb6.0xff);unsigned char aa;while(l)(aa=Oxfe;for(i=0;i7;i+)(P0=aa;aa=_crol_(aa.l);delayms(500);)for(i=0:i8;i+)(PO=aa;aa=_cror_(aa.l);delayms(500);)for(i=0;i3;i+)for(j=0;j2;j+)(PO=xxj;delayms(500)

6、;)for(i=0;i2;i+)for(j=0;j2;j+)(Po=yylil ； delayms(500);)for(i=0;i3;i+)for(j=0;j2;j+)(PO=zzjl ； delayms(500);)任务五：单个LED数码管显示设计使用89C51的P0 作为输出口，外接LED数码管，编写程序，使数码管循环显示从9 的加1计数。#include#define uint unsigned int#define uchar unsigned charuchar table10= 0X80XF9.0XA4.0XB0,0X99.0X92,0X82,0XF8,0X80,0X90);uin

7、t key=0;void int_int()(EA=1;IT0=l;EX0=l;)void count_num() interrupt 0(if(key=9)key=0;else key+;)void main()(intjnt();whiled)(PO=tablekey;)任务六：多个LED数码管显示设计使用单片机P0和P2 口作为输出口，外接一个8位LED数码管，编写程序，使数码管显示 “872AF635”。#include#include#dcfine uint unsigned int#dcfine uchar unsigned chardclay(ms)(while(ms-) int

8、 i;for(i=0;i110;i+);)inain()(uchara 16=0xc0.0xf9.0xa4.0xb0,0x99.0x92,0x82,0xf8,0x80,0x90.0x88,0x83.0xc6.0xaL0x86.0x8e);uchar b8= 0x08.0x07,0x02,0x0a,0x0f,0x06.0x03,0x05 j;uint i;while(l)j=0x01;for(i=0;i8;i+)(P2=j;PO=abi;j=_crol_(j,l);delay ；)任务七：查询式按键设计将8个按键从18进行编号，如果其中一个键被按下，则在LED数码管上显示相应的键值。#inclu

9、de#dcfine uint unsigned int#dcfine uchar unsigned char inain()(uchara16=0xc0.0xf9.0xa4.0xb0.0x99.0x92.0x82.0xf80x80,0x90.0x88.0x83,0xc6,0xal,0x86,0x8e;PO=Oxff;while(PO!=Oxff) switch(PO)case Oxfe:P2=al; break;case Oxfd:P2=a;break;case Oxfb:P2=a3; break;case 0xf7:P2=a4; break;case Oxef:P2=a5; break;ca

10、se Oxdf:P2=a6; break;case Oxbf:P2=a7; break;case 0x7f:P2=a8;)任务八：LED数码管显示矩阵键盘按键的设计设计一个4*4的矩阵键盘，以PL0P1.3作为行线，以PL4PL7作为列线。要求：未按下 按键时，LED数码管显示按下按键时，在数码管上显示相应的键值。#include#dcfine uchar unsigned char#dcfine uint unsigned intuchartable 17=0xbf.0xc0,0xf9.0xa4,0xb0.0x99,0x92.0x82,0xf8.0x80.0x90.0x88,0x8350xc

11、6,0xa L0x86,0x8e;uint num=0;void delay(uint x)(uchar ij;for(i=x;i0;i-) for(j=120;j0;j-);)keyscan() uint temp;temp=P2:temp&=0x0f;if(temp=0x0e)(P2=OxfO;temp=P2:temp&=0xf0;switch(temp)(case OxeO:num=l;break;case OxdO:num=2;break; case 0xb0:num=3;break; case 0x70:num=4;)if(temp=0x0d)(P2=OxfO;temp=P2:tem

12、p&=0xf0;switch(temp)(case 0xe0:num=5;break;case 0xd0:num=6;break;case 0xb0:num=7;break; case 0x70:num=8;)if(temp=0x0b)(P2=OxfO;temp=P2;temp&=0xf0;switch(temp)(case 0xe0:num=9;break; case 0xd0:num=10;break; case OxbO:num=ll;break; case 0x70:num=12;)if(temp=OxO7)(P2=OxfO;temp=P2;temp&=OxfO;switch(tcmp

13、)(case OxeO:num=13;break; case 0xd0:num=14;break; case OxbO:num=15;break;case 0x70:num=16;return num;)void display(uint num) if(nuin=O)PO=Oxbf;PO=tablenum;)niain()(uint temp;while(l)(P2=0x0f;temp=P2;if(temp!=OxOf) keyscan();display(num);)(2)#include#dcfine uchar unsigned char#dcfine uint unsigned in

14、t sbit LED1=P2AO;sbit LED2=P2A1:uchar num:uchar code LED_code=(0xc0.0xf9,0xa4,0xb0, 0x99.0x92.0x82.0xf8, 0x80,0x90.0x88,0x83, 0xc6.0xa 1.0x86,0x8e); 数码管字形码编码void dclay(uint x)(uchar ij;for(i=x;i0;i-) for(j=120;j0;j-);)延时函数void display(uchar num)(P0=LED_codenum;)数码管显示函数void keyscan()键盘扫描函数(uchar temp

15、;P1 =0xfe;/key 1 -key4 第一行按下 temp=Pl;temp&=0xf0: if(temp!=OxfO) (delay(lO)，消除抖动temp=Pl;temp&=0xf0; if(temp!=OxfO) (temp=Pl;switch(temp) ( case Oxee:num=l;break;case Oxde:num=2;break:case Oxbe:num=3;break:case 0x7e:num=4： break:) ) whiIe(temp!=OxfO)等待按键释放 (temp=Pl;temp&=OxfO;)P1 =0xfd;/key5-key8 第二行按

16、下temp=Pl;temp&=OxfO: if(temp!=OxfO) (delay(lO)，消除抖动temp=Pl;temp&=OxfO;if(temp!=OxfO) (temp=Pl;switch(temp) (case Oxed:num=5;break;case Oxdd:num=6;break:case Oxbd:num=7;break;case 0x7d:num=8;break:) ) while(temp!=OxfO)等待按键释放 (temp=Pl;temp&=OxfO:)P1 =0xfb;key9-key 12 第三行按下temp=Pl;temp&=OxfO;if(temp!=O

17、xfO)delay(lO)，消除抖动temp=Pl;temp&=OxfO;if(temp!=OxfO) (temp=Pl;switch(temp) (case Oxeb:num=9;break:case Oxdb:num=10;break;case Oxbb:num=ll;break:case Ox7b:num=12; break;)while(temp!=OxfO)等待按键释放 (temp=Pl;temp&=OxfO;)Pl=Oxf7:/keyl3-key 16 第四行按下 temp=Pl;temp&=OxfO:if(temp!=OxfO) (delay(lO)，消除抖动temp=Pl;te

18、mp&=OxfO;if(temp!=OxfO)temp=Pl;switch(temp)case 0xe7:num=13;break;case Oxd7:num=14;break:case Oxb7:num=15;break;case 0x77:num=16;break:)while(temp!=0xf0)等待按键释放(temp=Pl;temp&=OxfO:)void inain()(while(l)(keyscan();if(num=0)PO=Oxbf;elsedisplay(num-l);)任务九：简单拨号键盘的设计使用4*4的矩阵式键盘及8位共阳极LED数码管设计一个简单拨号键盘，要求在初

19、始状态 时，8位数码管均显示每按下一个号码后，原8位LED数码管显示的内容向左移动1 位。#includc#include#dcfine uint unsigned int#dcfine uchar unsigned charuchar keycount=0.num;uchar code LEDl_code=0xc0,0xf9,0xa4.0xb0,0x99,0x92,0x82,0xf8,0x80,0x90.0x88,0x83, 0xc6.0xa 1,0x86.0x8e);数码管字形码编码uchar LED2_duan8=0xbL0xbf0xbf.0xbf.0xbf0xbC0xbL0xbfy/8

20、 段共阳数码管编码 uchar LED2_wei8= 0x80,0x40,0x20,Ox 10,0x08,0x04,0x02,0x01;void dclay(uint x)(uchar i,j;for(i=x;i0;i-) for(j=120;j0;j-);)void displayO(uchar i;/P2=0x80;for(i=0;i8;i+) (P2=LED2_weii;P0=LED2_duan7-i; dclay(l);)void keyscanO(uchar temp;P3=0xfe;temp=P3;temp&=OxfO;if(temp!=OxfO)(delay(lO);temp=P

21、3:temp&=0xf0;if(temp!=OxfO) (temp=P3;switch(temp) (case Oxee:keycount+:num=0:break;case Oxde:keycount+;num= I ;break:case 0xbe:keycount+;num=2;break:case Ox7e:keycount+;num=3;break:)while(temp!=OxfO)(temp=P3;temp&=OxfO:)P3=0xfd;temp=P3;temp&=OxfO:if(temp!=OxfO)(delay(lO);tenip=P3;temp&=OxfO;if(temp!

22、=OxfO)(temp=P3;switch(temp)(case 0xcd:keycount+;num=4;break;case Oxdd:keycount+;num=5;break;case 0xbd:keycount+;num=6;break;case Ox7d:keycount+;num=7;break;)while(temp!=OxfO)(temp=P3;temp&=OxfO;)P3=Oxfb;temp=P3;temp&=OxfO;if(temp!=OxfO)(dclay(lO);temp=P3:temp&=OxfO;if(temp!=OxfO)teinp=P3;switch(temp

23、)(case Oxeb:keycount+;num=8;break:case 0xdb:keycount+;num=9;break;case 0xbb:keycount+;num=10;break;case Ox7b:keycount+;num=l 1 ;break; )while(temp!=OxfO)(temp=P3;temp&=OxfO;)P3=0xf7;temp=P3;temp&=OxfO;if(temp!=OxfO)(delay(lO);temp=P3:temp&=OxfO;if(temp!=OxfO)(temp=P3;switch(temp)(case Oxe7:keycount+

24、;num=12;break:case Oxd7:keycount+;num=13;break;case 0xb7:keycount+;num=14;break;case Ox77:keycount+;nuin= 15;break; )while(temp!=OxfO)(temp=P3;temp&=OxfO;)void main()uchar i;while(l) displayO;keyscan();if(keycount!=0) ( for(i=0;i右移流水一隔灯闪烁3次花样显示：如果按下K键 后，8只LED暂停默认显示，而进行闪烁显示，当显示达到5次后，继续按默认规律显示。#includ

25、e#define uint unsigned int#define uchar unsigned charuint LED_table14=0xfe,0xfd,0xfb.0xf7.0xef.0xdf,0xbf,0x7f,0xbt0xdt0xef.0xf7.0xfb,0xfd; void delayms(uint ms)(uint i;while(ms-)for(i=0;i120;i+);)void intjnt()(EA=1;EXO=1;ITO=1;void LED_shan() interrupt 0 (uint k;for(k=0;k5;k+)(P0=0xaa;delayms(500);P

26、O=Oxff;delayms(500);)void mainO(int_int();while(l)(uint i;for(i=0;i14;i+)(PO=LEDjablei;delayms(500);)for(i=0;i3;i+)(P0=0xaa;delayms(500);PO=Oxff;delayms(500);)任务二：采用外中断控制的条形LED彩灯设计P0端口作为输出口，外接条形LED。编写程序，当按键K未按下时，LED进行循环左移显 示。如果第1次按下按键KB, LED进行循环右移显示。如果第2次按下按键KB, LED 进行拉幕式与闭幕式花样显示。如果第3次按下按键K后，又恢复循环左移

27、显示。状态标志位 /LED映射位 花样数组#include unsigned char flag=O; unsigned char led =0; unsigned char tableJ= 0x00.0x81 .Oxc30xe7,180xff.0xe7,0xc3.0x81 先闭幕式再开幕式 void dclayms(unsigned int ms);void syslnit(void);void stepO(void);void step 1 (void);void step2(void);void main(void)(syslnit();while(l) switch(flag)延时函数

28、系统初始化状态0状态1状态2初始化系统case 0:stepO();brcak:case 1: stepl();break:case 2: step2();break:default:break;)P0 = -led; 将led值映射到LED灯 delayms(500);延时 500ms ) ) void delayms(unsigned int ms) ( unsigned char i; for (;ms:nis-)for (i=110;i;i-);)void syslnit(void) (EX0=l;打开外部中断0 EA =1;打开总中断 IT0=l; 外部中断。下降沿触发 ) void

29、 stepO(void) ( led =1;左移 if (led=0) 溢出处理 led = 0x01;)void step 1 (void) (led =1;右移 if(led=O) 溢出处理 led = 0x80;)void step2(void) (static char t;led = tablet+;开幕闭幕花样显示if (t=8)t = 0;)void EX_0() interrupt 0 外部中断0服务函数flag+：百度文库让每个人平等地提升自我if (flag=3) flag = 0;)(2)#incl ude 头文件#define uchar unsigned char#d

30、cfine uint unsigned int 宏定义uchar temp.key-count;uchar code tab=开幕式闭幕式编码0x00,0x81,0xc3,0xe7,0xff,0xe7,0xc3.0x81;void dclay(uint ms) 延时子函数(uint i j;for(i=ms;i0;i-) for(j=0;j=8) count=0:)void init()百度文库让每个人平等地提升自我EA=1;EXO=1;ITO=1;temp=O;key_count=0;)void main()(init();whiled)(switch(key_count) (case 0:

31、 loop_le ft mo ve() ;bre ak;case 1 :loop_rightmove();break;case 2:open_close();break: default:break;)PO=-temp;dclay(25O);)void keyJntcrruptO interrupt 0外部中断 INTO 中断服务程序(key_count+;key_count%=3;/*if(key_count=3) key_count=0;*/ )任务三：采用两个外中断的LED彩灯控制P0端口作为输出口，外接8只LED, P3.2外接按键KI, P3.3外接按键K2,编写程序，没 有按下任何

32、按键时，LED隔灯闪烁，当按键K1为奇数次时，LED进行左移流水-右移流水 显示。当按下按键K1为偶数次时，LED进行拉幕式显示；当按下按键K2时，LED暂停显 示，蜂鸣器发出“叮咚”的开门声音，然后LED继续花样显示(K2按键优先)。#include#includc#dcfine uchar unsigned char#dcfine uint unsigned intsbit keyl=P3A2;sbit key2=P3A3;sbit beep=PlAO;uchar code tab=0xff0xe7,0xc3.0x8 L0x00.0x8 l,0xc3.0xe7，开幕式编码uchar tem

33、p=OxOLkcy_count.fiag jight.beep_FG: void dclay(uint ms)(uint i,j;for(i=ms;i0;i-)for(j=110:j0;j-);)void init()(EA=1;打开总中断EX0=l，打开外部中断INTOEX1=1打开外部中断INTIITO=1;/下降沿触发方式下降沿触发方式PX0=0;设置INTO为低中断优先级PX1=1;设置INT1为高中断优先级)void interval_LED()(PO=Oxff;delay(500);P0=0xaa;delay(500);)void Ieft_right_move()(if(!rig

34、ht)temp=_crol_(temp, 1);elsetemp=_crorjtemp, 1);if(temp=0x01)(right=O;)if(temp=0x80) right=l;)void open_LED()(uchar count;temp=tabcount+;if(count=8)count=0;)void BeepO(uchar i,j,k;for(i=100:i;i-)for(j=20;j;j-)Ifor(k=1000;k;k-j beep=-beep;)/*for(i=100;i:i-)for(j=200;j;j-)(for(k=1000;k;k-j beep=-beep;

35、*/beep_FG=0:)void main()(init();beep=O;while(l)(if(!flag)interval_LED();else(if(beep_FG)( BeepO;)else( switch(key_count%2) (case 1:Ieft_right_move();break: 奇数次按键左移右移显示 case 0:open_LED();break: 偶数次按键拉幕式显示 default:brcak;)PO=temp:dclay(400);)void keyl JnterruptO interrupt 0(flag=l;key_count+:)void key2

36、_intcrrupt() interrupt 2(flag=l;beep_FG=l;)任务四：采用两个外中断实现LED键控移位P0端口作为输出口，外接8只LED, P3.2外接按键KI, P3.3外接按键K20编写程序，要 求实现LED键控移位，按下按键K1时，8只LED左移1位；按下按键K2时，8只LED 右移1位。#include#include#define uint unsigned int#define uchar unsigned charuchar key 1 =0.key2=0.temp 1 =0 Jeinp2=0,tenip 11 =0,temp 12=0;/*void de

37、layms(uint ms) (uint i;while(ms-)for(i=0;i120;i+);)1*/ void intjnt() (EA=1;EX0=l;EX1=1;IT0=l;IT1 = 1;)void intO() internipt 0keyl+;)void intl() internipt 2(key2+;)void inain()(uchar a;intjnt();a=Oxfe;while( 1)(if(templ!=keyl)(PO = a;a=_crol_(a J);templ=keyl;)if(temp2!=key2)(PO = a;a=_cror_(a.l); key

38、2=temp2;)(2)#include#dcfine uint unsigned int#define uchar unsigned charuchar keyl =O,key2=Ojn.n.k;uchar table=0xfe.0xfd,0xfb,0xt7,0xet0xdf,0xbf.0x7f;void intjnt()(EA=1;EXO=1;ITO=1;EX1=1;IT1 = 1;)void intO() internipt 0keyl+; m=keyl%8: ) void int2() internipt 2 (key2+; n=key2%8; ) void inain() (intj

39、nt(); whiled) (k=(m-n+8)%8;PO=tablek; ) ) 任务五：采用外中断实现计数 使用单片机PO、P2端口作为输出口，外接一个2位LED数码管，P3.2外接按键KI, P3.3 外接按键K2c编写程序，每次按下K1时，LED数码管进行加1显示；每次按下按键K2 时，LED数码管进行减1显示，计数范围为099。 #include 头文件 #dcfine uint unsigned int 宏 定 义 #define uchar unsigned char 宏定义 uchar table=0xc0,0xf9,0xa4.0xb0,0x99.Ox920x82.Oxf8.O

40、x8O.Ox9O ;0-9 共阳字型码编码 char count=0: uchar shi.ge; void LED_scan()数码管扫描子函数 ( shi=count/10,分离十位 ge=count% 10分离个位 P2=table ge ;/ 显示个位 PO=table sh i ;显示十位 ) void int_int() 初始化 ( EA=1;打开总中断EX0=l;打开外部中断0EX1=1;打开外部中断1IT0=l;设置下降沿触发方式IT1 = 1;设置下降沿触发方式) void main()主函数intjnt(); 调用初始化函数while(l)LED.scanO; 调用数码管扫

41、描函数 ) ) void intO() internipt 0外部中断0服务程序count+;if(count=100)count=0:计数加1溢出操作)void int2() internipt 2外部中断1服务程序count-;if(count0)计数减1溢出操作count=99;)(2)#include 头文件#dcfine uint unsigned int 宏定义#dcfine uchar unsigned char 宏定义 uchar table=0xc0,0xf9,0xa4,0xb0,0x99.0x92,0x82.0xf8.0x80.0x90 ;0-9 共阳字型码编码char c

42、ount=0: uchar shi.ge;void delay(uint ms)延时子函数 (uchar i;for(;ms;ms-) for(i=120;i;i);)void LED_scan()数码管扫描子函数(shi=count/10,分离十位 ge=count% 10,分离个位 P2=0x01：个位对应的数码管点亮 PO=tablege;显示个位 delay(l);P2=0x02;十位对应的数码管点亮PO=table sh i ;显示十位 delay(l);)EA=1;打开总中断EXO=1;打开外部中断0EX1=1;打开外部中断1ITO=1;设置下降沿触发方式IT1=1;设置下降沿触发

43、方式)void main()主函数(intjnt(); 调用初始化函数 while(l) (LED.scanO; 调用数码管扫描函数)void intO() internipt 0外部中断0服务程序count+;if(count=100)count=0:计数加1溢出操作)void int2() internipt 2 (count-;if(count0)count=99;外部中断1服务程序计数减1溢出操作)任务六：采用外中断进行计数和清零控制使用单片机P0、P2端口作为输出口,外接一个2位LED数码管，P3.2外接按键KI, P3.3 外接按键K2.编写程序，按键K2作为“加1/暂停/清零”控

44、制；按键K1作为加1计数控 制。当按键K2没有按下时，按键K1按下后LED数码管总显示为0：第1次按下键K2时， 每次按下KI, LED数码管进行加1显示；第二次按下按键K2时，暂停加1计数，按键K1 按下后LED数码管显示暂停前的数值：第3次按下按键K2时，LED数码管显示为0：第4 次按下按键K2时，与第1次类似。#include#dcfine uint unsigned int#define uchar unsigned charuchar key 1 =0.temp 1 =0.key2=0,ten】p2=0,key=0;uchar table=0XC0,0XF9,0XA4.0XB0,0

45、X99,0X92,0X82,0XF8,0X80,0X90);void dclayms(uint ms)while(ms-)uint i=0;for(i;i120;i+);)void int_int()(EA=1;EXO=1;EX1=1;ITO=1;IT1 = 1;)void intl() internipt 0(key2+;)void intO() internipt 2(keyl+;)void displayO(P2=0xfe;PO=tabIe tempi;delayms(2);P2=Oxfd;PO=tabletemp2J;delayms(2);)void main()(intjnt();w

46、hile(l)(templ=keyl%10;temp2=keyl/10;switch(key2%3) (case 0:while(l) (if(key2%3!=0) break;P2=0xfe;PO=tableO;delayms(2);P2=0xfd;PO=tableO;delayms(2);)key1=0;break:)case 1: displayO;break;case 2: key=keyl;while(l) (if(key2%3!=2) break;P2=0xfe;PO=tabIe tempi;delayms(2);P2=0xfd;P0=tabletemp2;delayms(2);)

47、keyl=key:break;)第六章任务一：简单计数器的设计使用单片机P0, P2端口作为输出口，外接一个2位LED数码管，P3.4外接按键Kc编写 程序，每次按键K按下时LED数码管进行加1显示，计数范围为099c #include#dcfine uint unsigned int#define uchar unsigned charuchar table=0XC0,0XF9,0XA4,0XB0,0X99,0X92,0X82,0XF8,0X80,0X90);uchar key=O;void dclayms(uint ms)29百度文库让每个人平等地提升自我uint i;while(ms-)

48、for(i=0;i120;i+);)void intJntO(EA=1;ETO=1;开定时器0中断TRO=1;启动定时器0TMOD=0x05;设置工作方式为1选择计数功能TH0=0xff;TLO=Oxff; 装初值使得按一下就中断)void intl() internipt 1(TH0=0xff;TL0=0xff;key+：)void displayO(P2=0xfe;P0=tablekey%10;delayms(3);P2=Oxfd;PO=tablekey/lO;delayms(3);)void inain()(intjnt();while(l)(displayO;if(key% 10=9&key/l 0=9)key=0;)#include#define uint unsigned int#define uchar unsigned charuchar tableJ=0XC0,