以单片机为核心，设计一个8位竞赛抢答器：同时供8名选手或8个代表队比赛，分别用8个按钮S0～S7表示。
1.设置一个系统清除和抢答控制开关S，开关由主持人控制。 2.抢答器具有锁存与显示功能。即选手按按钮，锁存相应的编号，并在优先抢答选手的编号一直保持到主持人将系统清除为止。
3.抢答器具有定时抢答功能，且一次抢答的时间由主持人设定（如30秒）。当主持人启动“开始”键后，定时器进行减计时，同时扬声器发出短暂的声响，声响持续的时间为0.5s左右。 4.参赛选手在设定的时间内进行抢答，抢答有效，定时器停止工作，显示器上显示选手的编号和抢答的时间，并保持到主持人将系统清除为止。
5.如果定时时间已到，无人抢答，本次抢答无效，系统报警并禁止抢答，定时显示器上显示00。
仿真原理图如下（proteus仿真工程文件可到本帖附件中下载）
单片机源程序如下:
- #include<reg51.h>
- OKEQU20H
- RINGEQU22H
- ORG0000H
- AJMPMAIN
- ORG0003H
- AJMPINT0SUB
- ORG000BH
- AJMPT0INT
- ORG0013H
- AJMPINT1SUB
- ORG001BH
- AJMPT1INT
- ORG0040H
- MAIN:MOVR1,#30
- MOVR2,#60
- MOVTMOD,#11H
- MOVTH0,#0F0H
- MOVTL0,#0FFH
- MOVTH1,#3CH
- MOVTL1,#0B0H
- SETBEA
- SETBET0
- SETBET1
- SETBEX0
- SETBEX1
- CLROK
- CLRRING
- SETBTR1
- SETBTR0
- 2查询程序
- START:MOVR5,#0BH
- MOVR4,#0BH
- MOVR3,#0BH
- ACALLDISPLAY
- JBP3.0,NEXT
- ACALLDELAY
- JBP3.0,NEXT
- ACALLBARK
- MOVA,R1
- MOVR6,A
- SETBOK
- MOVR7,#01H
- MOVR3,#0AH
- AJMPCOUNT
- NEXT:JNBP1.0,FALSE1
- JNBP1.1,FALSE2
- JNBP1.2,FALSE3
- JNBP1.3,FALSE4
- JNBP1.4,FALSE5
- JNBP1.5,FALSE6
- JNBP1.6,FALSE7
- JNBP1.7,FALSE8
- AJMPSTART
- 3非法抢答处理程序
- FALSE1:MOVR3,#01H
- AJMPERROR
- FALSE2:MOVR3,#02H
- AJMPERROR
- FALSE3:MOVR3,#03H
- AJMPERROR
- FALSE4:MOVR3,#04H
- AJMPERROR
- FALSE5:MOVR3,#05H
- AJMPERROR
- FALSE6:MOVR3,#06H
- AJMPERROR
- FALSE7:MOVR3,#07H
- AJMPERROR
- FALSE8:MOVR3,#08H
- 4抢答、回答时间调整程序
- =====INT0(抢答时间R1调整程序)=====
- INT0SUB:MOVA,R1
- MOVB,#0AH
- DIVAB
- MOVR5,A
- MOVR4,B
- MOVR3,#0AH
- ACALLDISPLAY
- JNBP3.4,INC0
- JNBP3.5,DEC0
- JNBP3.1,BACK0
- AJMPINT0SUB
- INC0:MOVA,R1
- CJNEA,#63H,ADD0
- MOVR1,#00H
- ACALLDELAY1
- AJMPINT0SUB
- ADD0:INCR1
- ACALLDELAY1
- AJMPINT0SUB
- DEC0:MOVA,R1
- JZSETR1
- DECR1
- ACALLDELAY1
- AJMPINT0SUB
- SETR1:MOVR1,#63H
- ACALLDELAY1
- AJMPINT0SUB
- BACK0:RETI
- ;=====INT1(回答时间R2调整程序)=====
- INT1SUB:MOVA,R2
- MOVB,#0AH
- DIVAB
- MOVR5,A
- MOVR4,B
- MOVR3,#0AH
- ACALLDISPLAY
- JNBP3.4,INC1
- JNBP3.5,DEC1
- JNBP3.1,BACK1
- AJMPINT1SUB
- INC1:MOVA,R2
- CJNEA,#63H,ADD1
- MOVR2,#00H
- ACALLDELAY1
- AJMPINT1SUB
- ADD1:INCR2
- ACALLDELAY1
- AJMPINT1SUB
- DEC1:MOVA,R2
- JZSETR2
- DECR2
- ACALLDELAY1
- AJMPINT1SUB
- SETR2:MOVR2,#63H
- ACALLDELAY1
- AJMPINT1SUB
- BACK1:RETI
- 5倒计时程序
- REPEAT:MOVA,R2
- MOVR6,A
- CLRRING
- COUNT:MOVR0,#00H
- MOVTH1,#3CH
- MOVTL1,#0B0H
- RECOUNT:MOVA,R6
- MOVB,#0AH
- DIVAB
- MOV30H,A
- MOV31H,B
- MOVR5,30H
- MOVR4,31H
- MOVA,R6
- SUBBA,#07H
- JNCLARGER
- MOVA,R0
- CJNEA,#0AH,FULL
- CLRRING
- AJMPCHECK
- FULL:CJNEA,#14H,CHECK
- SETBRING
- MOVA,R6
- JZQUIT
- MOVR0,#00H
- DECR6
- AJMPCHECK
- LARGER:MOVA,R0
- CJNEA,#14H,CHECK
- DECR6
- MOVR0,#00H
- CHECK:JNBP3.1,QUIT
- JNBOK,CHECKK
- AJMPNEXTT
- CHECKK:JNBP3.0,REPEAT
- NEXTT:ACALLDISPLAY
- JBOK,ACCOUT
- AJMPRECOUNT
- ACCOUT:
- MOVA,36H
- JNBACC.0,TRUE1
- JNBACC.1,TRUE2
- JNBACC.2,TRUE3
- JNBACC.3,TRUE4
- JNBACC.4,TRUE5
- JNBACC.5,TRUE6
- JNBACC.6,TZ1
- JNBACC.7,TZ2
- AJMPRECOUNT
- TZ1:JMPTRUE7
- TZ2:JMPTRUE8
- QUIT:CLROK
- CLRRING
- AJMPSTART
- 6正常抢答处理程序
- TRUE1:ACALLBARK
- MOVA,R2
- MOVR6,A
- MOVR3,#01H
- CLROK
- AJMPCOUNT
- TRUE2:ACALLBARK
- MOVA,R2
- MOVR6,A
- MOVR3,#02H
- CLROK
- AJMPCOUNT
- TRUE3:ACALLBARK
- MOVA,R2
- MOVR6,A
- MOVR3,#03H
- CLROK
- AJMPCOUNT
- TRUE4:ACALLBARK
- MOVA,R2
- MOVR6,A
- MOVR3,#04H
- CLROK
- AJMPCOUNT
- TRUE5:ACALLBARK
- MOVA,R2
- MOVR6,A
- MOVR3,#05H
- CLROK
- AJMPCOUNT
- TRUE6:ACALLBARK
- MOVA,R2
- MOVR6,A
- MOVR3,#06H
- CLROK
- AJMPCOUNT
- TRUE7:ACALLBARK
- MOVA,R2
- MOVR6,A
- MOVR3,#07H
- CLROK
- AJMPCOUNT
- TRUE8:ACALLBARK
- MOVA,R2
- MOVR6,A
- MOVR3,#08H
- CLROK
- AJMPCOUNT
- 7犯规抢答程序
- ERROR:MOVR0,#00H
- MOVTH1,#3CH
- MOVTL1,#0B0H
- MOV34H,R3
- HERE:MOVA,R0
- CJNEA,#06H,FLASH;0.3s
- CLRRING
- MOVR3,#0AH
- MOVR4,#0AH
- MOVR5,#0AH
- AJMPCHECK1
- FLASH:CJNEA,#0CH,CHECK1
- SETBRING
- MOVR0,#00H
- MOVR3,34H
- MOVR5,#0BH
- MOVR4,#0BH
- AJMPCHECK1
- CHECK1:JNBP3.1,QUIT1
- ACALLDISPLAY
- AJMPHERE
- QUIT1:CLRRING
- CLROK
- AJMPSTART
- 8其他功能程序
- =====显示程序=====
- DISPLAY:MOVDPTR,#DAT1
- MOVA,R3
- MOVCA,@A+DPTR
- MOVP2,#0feH
- MOVP0,A
- ACALLDELAY2
- MOVDPTR,#DAT2
- MOVA,R5
- MOVCA,@A+DPTR
- MOVP2,#0fdH
- MOVP0,A
- ACALLDELAY2
- MOVA,R4
- MOVCA,@A+DPTR
- MOVP2,#0fbH
- MOVP0,A
- ACALLDELAY2
- RET
- DAT1:DB00h,06h,5Bh,4Fh,66h,6Dh,7Dh,07h,7Fh,6Fh,00H,71H
- DAT2:DB3Fh,06h,5Bh,4Fh,66h,6Dh,7Dh,07h,7Fh,6Fh,00H,71H
- =====发声程序=====
- BARK:SETBRING
- ACALLDELAY1
- ACALLDELAY1
- CLRRING
- RET
- =====TO溢出中断(响铃程序)=====
- T0INT:MOVTH0,#0ECH
- MOVTL0,#0FFH
- JNBRING,OUT;
- CPLP3.6
- OUT:RETI
- ;=====T1溢出中断(计时程序)=====
- T1INT:MOVTH1,#3CH
- MOVTL1,#0B0H
- END
程序还有点问题,求大神帮忙修改,压缩包里面是仿真图:
项目一八位竞赛抢答器.zip
(805.17 KB, 下载次数: 22)
|
