开关控制二极管亮灭+数码管

1、开关控制二极管亮灭P1.5=1 P2.1=1P1.5=0 P2.1=0START:JB P1.5 , LOOP;判断开关是断开还是闭合，条件是:P1.5是不是等于1CLR P2.1；闭合LJMP STARTLOOP:SETB P2.1 ；断开LJMP STARTENDSTART:JB P1.5 , LOOP;判断开关是断开还是闭合，条件是:P1.5是不是等于1CLR P2.1；闭合SETB P2.2LJMP STARTLOOP:SETB P2.1CLR P2.2LJMP STARTENDSTART:JB P1.5 , LOOPCLR P2.1JB P1.6 ,LOOP1CLR P2.2LJMP

2、 STARTLOOP:SETB P2.1JB P1.6 ,LOOP1CLR P2.2LJMP STARTLOOP1：SETB P2.2LJMP START ENDStart：Jb p1.5, dianqi Clr p2.1Loop1:Djnz r0 ,loop1Djnz r1 ,loop1Setb p2.1Loop2:Djnz r0 ,loop2Djnz r1 ,loop2Ljmp startDianqi:Setb p2.1Ljmp startend课题151.3002.标注端口开始3.P2.0=1?否Y有，D1闪烁无，D2闪烁4.题库3P0.0P0.1P2.0P1.1P1.0启动报警P1.0

3、=1P1.1=0P2.0=1延时 P1.0=0 P1.1=1 P2.0=0 延时 开始是SW2是否断开P0.1=1?是SW1是否闭合P0.0=0?否否灯灭 P1.0=1P1.1=1扬声器不亮 P2.0=0P1.0P3.1START:JNB P0.0 , BAOJINGJB P0.1 , BAOJINGSETB P1.0SETB P1.1clr P2.0LJMP STARTBAOJING:SETB P1.0CLR P1.1Clr P2.0LOOP: DJNZ R0, LOOP DJNZ R1,LOOPCLR P1.0SETB P1.1SETB P2.0LOOP1: DJNZ R0, LOOP1

4、DJNZ R1,LOOP1LJMP startEND裁判表决器Start:Jb p1.5, biaojue ；开关断开 P1.5=1， 条件成立，跳转到biaojue，二极管不亮， P2.1=1开关闭合P1.5=0， 条件不成立，不跳转，继续判断第二个开关Jb p1.6, biaojue ；开关断开 P1.6=1， 条件成立，跳转biaojue，二极管不亮， P2.1=1开关闭合P1.5=0， 条件不成立，不跳转，二极管亮 P2.1=0clr p2.1Ljmp startBiaojue:Setb p2.1Ljmp startEnd课题4START:JB P1.5 ,CHENGJB P1.6 ,

5、ZHANGCLR P2.1Mov R7 ,#10LOOP:CLR P2.2DAL:DJNZ R0 ,DALDJNZ R1 ,DALSETB P2.2DAL1:DJNZ R0 ,DAL1DJNZ R1 ,DAL1DJNZ R7 , LOOPLJMP DONECHENG:SETB P2.1CLR P2.2DAL2:DJNZ R0 ,DAL2DJNZ R1 ,DAL2SETB P2.2DAL3:DJNZ R0 ,DAL3DJNZ R1 ,DAL3LJMP STARTZHANG:JB P1.7 ,GAOCLR P2.1 ;P2.1是灯Mov R7 ,#10LOOP1:CLR P2.2DAL4:DJNZ

6、 R0 ,DAL4DJNZ R1 ,DAL4SETB P2.2DAL5:DJNZ R0 ,DAL5DJNZ R1 ,DAL5DJNZ R7 , LOOP1LJMP DONEGAO:SETB P2.1CLR P2.2DAL5:DJNZ R0 ,DAL5DJNZ R1 ,DAL5SETB P2.2DAL6:DJNZ R0 ,DAL6DJNZ R1 ,DAL6LJMP STARTDONE :END数码管共阴数码管任务1：显示dq3112Mov P1 , #06H ;1字模MOV P2，#01HEND课题141.2.Y显示FN显示E初始化Y按键？P1.0=0?按键？P1.0=0?N3.4. E2011

7、.5.计数器DIANQI：MOV r7 ,#0MOV DPTR , #YINJUNStart:JNB P0.4, LOOPLJMP STARTLOOP:DAL: DJNZ R0，DALDJNZ R1 ,DALMov A, R7MOVC A ,A+DPTRINC R7MOV P1 ,AMov P2 ,#01HCJNE R7 ,#10H ,STARTLJMP DIANQIYINJUN:DB 3FH,06H,5BH,4FH,66H,6DH ,7DH,07H,7FH ,6FH,END课题8YN显示十位显示个位初始化按键？P0.0=0?NY是否>9?MOV r6 ,#0MOV DPTR , #YI

8、NJUNDIANQI：MOV r7 ,#0Start:JNB P0.4, TIAOYONGMOV P1 ,R5Mov P2 ,#01HDAL1: DJNZ R0，DAL1MOV P1 ,R4 Mov P2 ,#02HLJMP STARTTIAOYONG:DAL: DJNZ R0，DALDJNZ R1 ,DAL Mov A, R7 ;个位显示MOVC A ,A+DPTRMOV R5 ,A INC R7CJNE R7 ,#10 ,STARTINC R6Mov A, R6 ;十位显示MOVC A ,A+DPTRMOV R4 ,A LJMP QIANQIYINJUN:DB 3FH,06H,5BH,4FH,66H,6DH ,7DH,07H,7FH ,6FHEND抢答器START:JNB P0.0 ,LIANGYIJNB P0.1,LIANGERLJMP STARTLIANGYI:MOV P1 ,#06HMOV P2 ,# 01HLJMP DONELIANGER:MOV P1 ,#5BHMOV P2 ,#01HDONE:END课题2课题11org 0000hljmp mainorg 0003hljmp intorg 0100hmain:mov a,#03hmov r0,#4setb easet