微电子技术与工程常见课题

1、 闪烁的LED 专业：微电子1104班 姓名：王宁 学号：1102050415功能要求：LED单个闪烁原理图：程序：#include<reg51.h>#define uchar unsigned char#define uint unsigned intsbit LED=P10;/延时 void DelayMS(uint x)uchar i;while(x-)for(i=0;i<120;i+);/主程序void main()while(1)LED=LED;DelayMS(150);单只数码管循环显示0-9 专业：微电子1104班 姓名：王宁 学号：1102050415功能要求

2、：单只数码管循环显示0-9原理图：程序：#include<reg51.h> #include<intrins.h> #define uchar unsigned char #define uint unsigned int uchar code DSY_CODE=0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90,0xff; / 延时 void DelayMS(uint x) uchar t; while(x-) for(t=0;t<120;t+); / 主程序 void main() uchar i=0; P0=0

3、x00; while(1) P0=DSY_CODEi; i=(i+1)%10; DelayMS(300); 8只数码管流动显示单个数字 专业：微电子1104班 姓名：王宁 学号：1102050415功能要求：8只数码管流动显示单个数字原理图：程序：#include<reg51.h>#include<intrins.h>#define uchar unsigned char#define uint unsigned intuchar code DSY_CODE=0x3f,0x06,0x5b,0x4f, 0x66,0x6d,0x7d,0x07;void delayms(ui

4、nt x)uchar t;while(x-)for(t=0;t<120;t+); void main() uchar i,wei=0x80; while(1) for(i=0;i<8;i+) P2=0xff; wei=_crol_(wei,1); P0=DSY_CODEi; P2=wei; delayms(300); 数码管显示4*4矩阵按键号 专业：微电子1104班 姓名：王宁 学号：1102050415功能要求：数码管显示4*4矩阵按键号原理图：程序：KEYBUF EQU 30H ORG 00HSTART: MOV KEYBUF,#2WAIT: MOV P3,#0FFH CLR

5、 P3.4 MOV A,P3 ANL A,#0FH XRL A,#0FH JZ NOKEY1 LCALL DELY10MS MOV A,P3 ANL A,#0FH XRL A,#0FH JZ NOKEY1 MOV A,P3 ANL A,#0FH CJNE A,#0EH,NK1 MOV KEYBUF,#0 LJMP DK1NK1: CJNE A,#0DH,NK2 MOV KEYBUF,#1 LJMP DK1NK2: CJNE A,#0BH,NK3 MOV KEYBUF,#2 LJMP DK1NK3: CJNE A,#07H,NK4 MOV KEYBUF,#3 LJMP DK1NK4: NOPDK

6、1: MOV A,KEYBUF MOV DPTR,#TABLE MOVC A,A+DPTR MOV P0,ADK1A: MOV A,P3 ANL A,#0FH XRL A,#0FH JNZ DK1ANOKEY1: MOV P3,#0FFH CLR P3.5 MOV A,P3 ANL A,#0FH XRL A,#0FH JZ NOKEY2 LCALL DELY10MS MOV A,P3 ANL A,#0FH XRL A,#0FH JZ NOKEY2 MOV A,P3 ANL A,#0FH CJNE A,#0EH,NK5 MOV KEYBUF,#4 LJMP DK2NK5: CJNE A,#0DH

7、,NK6 MOV KEYBUF,#5 LJMP DK2NK6: CJNE A,#0BH,NK7 MOV KEYBUF,#6 LJMP DK2NK7: CJNE A,#07H,NK8 MOV KEYBUF,#7 LJMP DK2NK8: NOPDK2: MOV A,KEYBUF MOV DPTR,#TABLE MOVC A,A+DPTR MOV P0,ADK2A: MOV A,P3 ANL A,#0FH XRL A,#0FH JNZ DK2ANOKEY2: MOV P3,#0FFH CLR P3.6 MOV A,P3 ANL A,#0FH XRL A,#0FH JZ NOKEY3 LCALL D

8、ELY10MS MOV A,P3 ANL A,#0FH XRL A,#0FH JZ NOKEY3 MOV A,P3 ANL A,#0FH CJNE A,#0EH,NK9 MOV KEYBUF,#8 LJMP DK3NK9: CJNE A,#0DH,NK10 MOV KEYBUF,#9 LJMP DK3NK10: CJNE A,#0BH,NK11 MOV KEYBUF,#10 LJMP DK3NK11: CJNE A,#07H,NK12 MOV KEYBUF,#11 LJMP DK3NK12: NOPDK3: MOV A,KEYBUF MOV DPTR,#TABLE MOVC A,A+DPTR

9、MOV P0,ADK3A: MOV A,P3 ANL A,#0FH XRL A,#0FH JNZ DK3ANOKEY3: MOV P3,#0FFH CLR P3.7 MOV A,P3 ANL A,#0FH XRL A,#0FH JZ NOKEY4 LCALL DELY10MS MOV A,P3 ANL A,#0FH XRL A,#0FH JZ NOKEY4 MOV A,P3 ANL A,#0FH CJNE A,#0EH,NK13 MOV KEYBUF,#12 LJMP DK4NK13: CJNE A,#0DH,NK14 MOV KEYBUF,#13 LJMP DK4NK14: CJNE A,#

10、0BH,NK15 MOV KEYBUF,#14 LJMP DK4NK15: CJNE A,#07H,NK16 MOV KEYBUF,#15 LJMP DK4NK16: NOPDK4: MOV A,KEYBUF MOV DPTR,#TABLE MOVC A,A+DPTR MOV P0,ADK4A: MOV A,P3 ANL A,#0FH XRL A,#0FH JNZ DK4ANOKEY4: LJMP WAITDELY10MS: MOV R6,#10D1: MOV R7,#248 DJNZ R7,$ DJNZ R6,D1 RETTABLE: DB 0c0H,0f9H,0a4H,0b0H,099H

11、DB 092H,082H,0f8H,080H,090H DB 088H,083H,0c6H,0a1H,086H,08eH END按键发音 专业：微电子1104班 姓名：王宁 学号：1102050415功能要求：按键发音原理图：程序：#include<reg51.h> #define uchar unsigned char #define uint unsigned int sbit BEEP=P15; sbit K1=P24; sbit K2=P25; sbit K3=P26; sbit K4=P27; / 延时 void DelayMS(uint x) uchar t; whil

12、e(x-) for(t=0;t<120;t+); / 按周期t 发音 void Play(uchar t) uchar i; for(i=0;i<100;i+) BEEP=BEEP; DelayMS(t); BEEP=0; void main() P1=0xff; BEEP=0; while(1) if(K1=0) Play(1); if(K2=0) Play(2); if(K3=0) Play(3); if(K4=0) Play(4); INT0及INT1的中断计数 专业：微电子1104班 姓名：王宁 学号：1102050415功能要求：INT0及INT1的中断计数原理图：程序：

13、#include <reg51.h>#define uchar unsigned char#define uint unsigned int sbit K3=P34;sbit K4=P35;uchar code DSY_CODE=0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x90,0xff;uchar code DSY_Scan_Bits=0x20,0x10,0x08,0x04,0x02,0x01;uchar data Buffer_Counts=0,0,0,0,0,0;uint Count_A,Count_B=0;void DelayMS(u

14、int x) uchar t; while(x-)for(t=0;t<120;t+);void show_Counts() uchar i; Buffer_Counts2=Count_A/100; Buffer_Counts1=Count_A%100/10; Buffer_Counts0=Count_A%10; if(Buffer_Counts2=0) Buffer_Counts2=0x0a; if(Buffer_Counts1=0) Buffer_Counts1=0x0a; Buffer_Counts5=Count_B/100; Buffer_Counts4=Count_B%100/1

15、0; Buffer_Counts3=Count_B%10; if(Buffer_Counts5=0) Buffer_Counts5=0x0a; if(Buffer_Counts4=0) Buffer_Counts4=0x0a;for(i=0;i<6;i+) P2=DSY_Scan_Bitsi; P1=DSY_CODEBuffer_Countsi; DelayMS(1);void main() IE=0x85; PX0=1; IT0=1; IT0=1; while(1) if(K3=0)Count_A=0; if(K4=0)Count_B=0; show_Counts(); void EX

16、_INT0()interrupt 0 Count_A+;void EX_INT1()interrupt 2 Count_B+;100000以内的计时程序 专业：微电子1104班 姓名：王宁 学号：1102050415功能要求：100000以内的计时程序原理图：程序：#include <reg51.h>#include <intrins.h>#define uchar unsigned char#define uint unsigned intuchar code DSY_CODE=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,

17、0x6f;uchar Digits_of_6DSY=0,0,0,0,0,0;uchar Count;sbit Dot=P07;void DelayMS(uint ms) uchar t; while(ms-)for(t=0;t<120;t+);void main() uchar i,j; P0=0x00; P3=0xff; Count=0; TMOD=0X01; TH0=(65536-50000)/256; TL0=(65536-50000)%256; IE=0X82; TR0=1; while(1) j=0x7f; for(i=5;i!=-1;i-) j=_crol_(j,1); P3=j; P0=D