1、51单片机按键控制花样灯时间：2012-09-10 13:50:11 来源：51hei 作者：/* 本程序实现用按键控制花样灯。 * 当 K1按下时，灯从0xfe 向左跑一遍； * 当 K2按下时，LED 灯从0x7f 向右跑一遍到了0xfe 右跑回到起始位置； * 当 K3键按下时，LED 灯从0xfe 开始作流水灯形式运行一次,然后再流回来。 * 当 K4键按下时，LED 灯先亮前四个，接着再转向亮后四个。 * 当 K5键按下时，结束任意正在进行的程序，使 LED灯全部熄灭。 */*连接方法：P0接独立按键 JP5;P2接 LED灯接口 JP1 */#include /头文件，函数声明#i
2、nclude /定义按键所在位sbit K1=P00;sbit K2=P01;sbit K3=P02;sbit K4=P03;sbit K5=P04;unsigned char led;unsigned char j;void delayms(unsigned char ms) / 1ms标准延时while(ms-)for(j=0;j7;P2=led;delayms(200);if(led=0x00)break; /这里一定要有个 break，跳出循环，然后别忘了此时的状态是00，而不是7fwhile(!K1); led=0x7f;P2=led;delayms(200 ); for(i=0;i
3、1;P2=led;delayms(200); /*当 K4键按下时，LED 灯先亮前四个，接着再转向亮后四个。* */if(K4=0)delayms(10); /消除抖动 if(K4=0) for(i=0;i/-/=主函数=ORG 0000HLJMP MAINORG 000BHLJMP T00/ ORG 001BH/ LJMP T11ORG 0030H/=程序初始化=MAIN:MOV TMOD,#11HMOV TH0,#3CHMOV TL0,#0B0HMOV TH1,#0F0HMOV TL1,#0B0HSETB EASETB ET0/ SETB ET1SETB TR0/ SETB TR1CLR
4、 P3.4 MOV R7,#00H ;秒值MOV 30H,#00H ;秒个位值MOV 31H,#00H ;秒十位值MOV 32H,#00H ;分个位MOV 33H,#00H ;分十位MOV 34H,#00H ;时个位MOV 35H,#00H ;时十位MOV 44H,#00H ;秒表毫秒十位MOV 45H,#00H ;秒表秒毫秒百位MOV 46H,#00H ;秒表秒个位MOV 47H,#00H ;秒表秒十位MOV 48H,#00H ;秒表分个位MOV 49H,#00H ;秒表分十位MOV P2,#0F0H ;P2口按键初始化MOV 40H,#01H ;数码管休眠值 /流水灯/秒表开关数MOV 4
5、1H,#08H ;流水灯循环值MOV 42H,#00H ;秒表暂停/ ACALL T11/- MAIN1: MOV P0,#0FFHMOV P1,#0FFHMOV R0,40HCJNE R0,#01H,ACL1ACALL MAIN2 ;时钟显示ACL1:CJNE R0,#02H,ACL2ACALL MAIN3 ;秒表ACL2:CJNE R0,#03H,ACL3ACALL LED ;流水灯ACL3:ACALL KEY ;按键扫描/ ACALL BAO ;定时报警LJMP MAIN1/=报警子程序=BAO:MOV R4,33H CJNE R4,#03H,YY1CLR P3.2ACALL KEYLJ
6、MP YY2YY1:CJNE R4,#05H,YY2SETB P3.2 ACALL KEYYY2:RET/=时钟扫描子程序=MAIN2:MOV A,30H MOV DPTR,#TABMOVC A,A+DPTRMOV P0,ACLR P1.0ACALL DELAYMOV A,31HMOV DPTR,#TABMOVC A,A+ DPTRMOV P0,ACLR P1.1SETB P1.0ACALL DELAYMOV A,32HMOV DPTR,#TABMOVC A,A+DPTRMOV P0,ACLR P1.2SETB P1.1ACALL DELAYMOV A,33HMOV DPTR,#TABMOVC
7、 A,A+DPTRMOV P0,ACLR P1.3SETB P1.2ACALL DELAYMOV A,34HMOV DPTR,#TABMOVC A,A+DPTRMOV P0,ACLR P1.4SETB P1.3ACALL DELAYMOV A,35HMOV DPTR,#TABMOVC A,A+DPTRMOV P0,ACLR P1.5SETB P1.4ACALL DELAY MOV P0,#7FH MOV P1,#0EBHACALL DELAYMOV P1,#0FFHRET/=秒表扫描子程序=MAIN3:MOV A,44H MOV DPTR,#TABMOVC A,A+DPTRMOV P0,ACL
8、R P1.0ACALL DELAYMOV A,45HMOV DPTR,#TABMOVC A,A+ DPTRMOV P0,ACLR P1.1SETB P1.0ACALL DELAYMOV A,46HMOV DPTR,#TABMOVC A,A+DPTRMOV P0,ACLR P1.2SETB P1.1ACALL DELAYMOV A,47HMOV DPTR,#TABMOVC A,A+DPTRMOV P0,ACLR P1.3SETB P1.2ACALL DELAYMOV A,48HMOV DPTR,#TABMOVC A,A+DPTRMOV P0,ACLR P1.4SETB P1.3ACALL DEL
9、AYMOV A,49HMOV DPTR,#TABMOVC A,A+DPTRMOV P0,ACLR P1.5SETB P1.4ACALL DELAY MOV P0,#7FH MOV P1,#0EBHACALL DELAYMOV P1,#0FFHRET/=定时器 T0中断服务=T00:MOV TH0,#0D8HMOV TL0,#0F0HINC R7CJNE R7,#64H,AAMOV R7,#00H/-时钟跑值-TK1:INC 30H ;每秒钟秒个位增一MOV R6,30HCJNE R6,#0AH,AAMOV 30H,#00HTK2:INC 31HMOV R6,31HCJNE R6,#06H,AA
10、MOV 31H,#00H TK3:INC 32H MOV R6,32HCJNE R6,#0AH,AAMOV 32H,#00HTK4:INC 33HMOV R6,33HCJNE R6,#06H,AAMOV 33H,#00HTK5:INC 34HMOV R5,34HMOV R6,35HCJNE R5,#04H,TK6CJNE R6,#02H,TK6MOV 34H,#00HMOV 35H,#00HTK6:CJNE R5,#0AH,AAMOV 34H,#00HINC 35H/-秒表跑值-AA:MOV R5,42HCJNE R5,#01H,TK7INC 44HTK7:MOV R5,44HCJNE R5,
11、#0AH,AA1MOV 44H,#00HINC 45HMOV R5,45HCJNE R5,#0AH,AA1MOV 45H,#00HINC 46HMOV R5,46HCJNE R5,#0AH,AA1MOV 46H,#00HINC 47HMOV R5,47HCJNE R5,#06H,AA1MOV 47H,#00HINC 48HMOV R5,48HCJNE R5,#0AH,AA1MOV 48H,#00HINC 49HMOV R5,49HCJNE R5,#06H,AA1MOV 49H,#00HAA1:RETI/=定时器 T1中断服务子程序=/T11:MOV TH1,#0F0H/ MOV TL1,#0B
12、0H/ RETI/*定时时间调整子程序*/TBAO:MOV 50H,#00HMOV 51H,#00HMOV 52H,#00HMOV 53H,#00HMOV 54H,#00HMOV 55H,#00HMOV R3,50HDJNZ 30H,RET1RET1: RET/=键盘扫描子程序= KEY:MOV P2,#0F0HMOV R3,P2CJNE R3,#0F0H,KE0LJMP KK13KE0:CJNE R3,#0E0H,KE1 ;P2.4行MOV P2,#0EFHJB P2.3,KK1 /用作调定时时间 ;K13 秒个位增一ACALL DELAY1ACALL TK1KK1:JB P2.2,KK2
13、;K14 秒十增一ACALL DELAY1ACALL TK2KK2:JB P2.1,KK3 ;K15 分个位增一ACALL DELAY1ACALL TK3KK3:JB P2.0,KE1 ;K16 分十位增一ACALL DELAY1ACALL TK4KE1:MOV P2,#0DFH ;P2.5行JB P2.3,KK4 ;K9 时个位增一ACALL DELAY1ACALL TK5KK4:JB P2.2,KK5 ;K10 时十位增一ACALL DELAY1INC 35H MOV R3,35HCJNE R3,#03H,HH0MOV 35H,#00HLJMP KK5HH0:CJNE R3,#02H,HH
14、1LJMP KK5HH1:CJNE R3,#01H,HH2LJMP KK5HH2:MOV 35H,#00HKK5:JB P2.1,KK6 ACALL DELAY1 ;K11 开/关蜂鸣器CPL P3.2KK6:JB P2.0,KE2 ;K12 秒表暂停MOV 42H,#00H KE2:MOV P2,#0BFH ;P.6行JB P2.3,KK7 ;K5 时钟暂停/取消暂停ACALL DELAY1CPL ET0 KK7:JB P2.2,KK8 ;K6 显示/休眠/流水灯ACALL DELAY2INC 40HMOV R3,40HCJNE R3,#04H,KK8MOV 40H,#01HKK8:JB P
15、2.1,KK9 / ACALL DELAY3 ;K7 秒表清0 MOV 44H,#00HMOV 45H,#00HMOV 46H,#00HMOV 47H,#00HMOV 48H,#00HMOV 49H,#00HKK9:JB P2.0,KE3 ;K8 秒表开始跑MOV 42H,#01H KE3:MOV P2,#7FH ;P2.7行JB P2.3,KK10 ;K1 秒十位减一ACALL DELAY1MOV R3,31HCJNE R3,#00H,JA1LJMP KK10JA1:DEC 31HKK10:JB P2.2,KK11 ;K2 分个位减一ACALL DELAY1MOV R3,32HCJNE R3
16、,#00H,JA2LJMP KK11JA2: DEC 32HKK11:JB P2.1,KK12 ;K3 分十位减一ACALL DELAY1MOV R3,33HCJNE R3,#00H,JA3LJMP KK12JA3:DEC 33HKK12:JB P2.0,KK13 ;K4 时个位减一ACALL DELAY1MOV R3,34HCJNE R3,#00H,JA4LJMP KK13JA4:DEC 34HKK13:RET/=流水灯子程序=LED: MOV A,#0feHMOV 41H,#08HMOV P0,#0FFH LED1: MOV P1,AMOV R3,#100D0: ACALL DELAYDJ
17、NZ R3,D0MOV R3,41HDJNZ R3,AAALJMP BBAAA:RL AMOV 41H,R3 ACALL KEYLJMP LED1BB: MOV 41H,#07HCC: MOV P1,AMOV R3,#30D1: ACALL DELAYDJNZ R3,D1MOV R3,41HDJNZ R3,DDLJMP LED0DD:RR AMOV 41H,R3ACALL KEYLJMP CCLED0:RET /=延时子程序= DELAY:MOV R1,#250DEL1:NOP NOPNOPNOP DJNZ R1,DEL1RET/=调用时钟显示作延时=DELAY1:MOV R2,#20 DELA3: ACALL MAIN2DJNZ R2,DELA3 RET/=调用秒表显示作延时=DELAY3:MOV R2,#20DELA5:ACALL MAIN3DJNZ R2,DELA5RET/=调用延时子程序作延时=DELAY2:MOV R2,#100 DELA4:ACALL DELAYDJNZ R2,DELA4RET/=共阳数码管段码表= TAB:DB 0C0H,0F9H,0A4H,0B0H,99H,92H,82H,0F8H,80H,90H,87HEND
