抢答器使用说明文档格式.docx
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初设答题时间为60s
MOV50H,#10
MOV51H,#10
MOV52H,#10
MOV53H,#10
MOV54H,#10
MOV55H,#10
MOV56H,#10
MOV57H,#10;
初始化各选说分数为10分
MOVTMOD,#11H;
设置定时器/不受外部中断控制/定时/模式1
MOVTH0,#0F0H
MOVTL0,#0FFH;
越高发声频率越高,越尖
MOVTH1,#3CH
MOVTL1,#0B0H;
50ms为一次溢出中断
SETBEA;
CPU开中断
SETBET0
SETBET1
SETBEX0
SETBEX1;
允许四个中断,T0/T1/INT0/INT1
CLROK
CLRRING
SETBTR1
SETBTR0;
一开始就运行定时器,以开始显示EEE.如果想重新计数,重置TH1/TL1就可以了
;
*****查询程序*****
START:
MOVR5,#0BH
MOVR4,#0BH
MOVR3,#0BH
ACALLXIANSHI;
未开始抢答时候显示EEE
JNBP3.6,SCOCH
JBP3.0,NEX;
如果"
开始键"
按下就向下执行,否者跳到非法抢答查询
ACALLBARK;
按键发声
MOVA,R1
MOVR6,A;
送R1->
R6,因为R1中保存了抢答时间
SETBOK;
抢答标志位,用于BACKT只程序中判断是否查询抢答
MOVR7,#01H;
读抢答键数据信号标志,这里表示只读一次有用信号
MOVR3,#0AH;
抢答只显示计时,灭号数
AJMPBACKT;
进入倒计时程序,"
查询有效抢答的程序"
在BACKT里面
NEX:
AJMPNEXT
*****分数查询******
STAR:
ACALLBARK
AJMPSTART
SCOCH:
AJMPSCOCHA
SCOCHA:
JNBP3.1,STAR
JNBP1.0,S1
JNBP1.1,S2
JNBP1.2,S3
JNBP1.3,S4
JNBP1.4,S5
JNBP1.5,S6
JNBP1.6,S7
JNBP1.7,S8
S1:
MOVR3,#01H
MOVA,50H
AJMPSS
S2:
MOVR3,#02H
MOVA,51H
AJMPSS
S3:
MOVR3,#03H
MOVA,52H
S4:
MOVR3,#04H
MOVA,53H
S5:
MOVR3,#05H
MOVA,54H
S6:
MOVR3,#06H
MOVA,55H
S7:
MOVR3,#07H
MOVA,56H
S8:
MOVR3,#08H
MOVA,57H
SS:
MOVB,#0AH
DIVAB
MOVR5,A
MOVR4,B
ACALLDELAY1
AJMPSCOCHA
NEXT:
MOVA,P1
MOV36H,A
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
*****非法抢答处理程序*****
FALSE1:
MOVR3,#01H
AJMPERROR
FALSE2:
MOVR3,#02H
FALSE3:
MOVR3,#03H
FALSE4:
MOVR3,#04H
FALSE5:
MOVR3,#05H
FALSE6:
MOVR3,#06H
FALSE7:
MOVR3,#07H
FALSE8:
MOVR3,#08H
AJMPERROR
*****抢答时间R1调整程序*****
QTIM0:
ACALLBARK
QTIME:
MOVR3,#0AH
先在两个时间LED上显示R1
JNBP3.4,INC0;
P3.4为+1s键,如按下跳到INCO
JNBP3.5,DEC0;
P3.5为-1s键,如按下跳到DECO
JNBP3.1,BACK0;
P3.1为确定键,如按下跳到BACKO
AJMPQTIME
INC0:
CJNEA,#63H,ADD0;
如果不是99,R2加1,如果加到99,R1就置0,重新加起。
MOVR1,#00H
AJMPQTIME
ADD0:
INCR1
DEC0:
JZSETR1;
如果R1为0,R1就置99,
DECR1
SETR1:
MOVR1,#63H
BACK0:
RETI
*****回答时间R2调整程序*****
ASKTIM0:
CLROK
CLRRING
ACALLBARK
ASKTIME:
MOVA,R2
ACALLXIANSHI
JNBP3.4,INC1
JNBP3.5,DEC1
JNBP3.1,BACK1
AJMPASKTIME
INC1:
CJNEA,#63H,ADD1
MOVR2,#00H
AJMPASKTIME
ADD1:
INCR2
DEC1:
JZSETR2
DECR2
SETR2:
MOVR2,#63H
BACK1:
*********分数修改********
SCORES:
MOVA,R7
JNBP3.4,INC2
JNBP3.5,DEC2
JNBP3.1,BACK2
AJMPSCORES
INC2:
CJNEA,#63H,ADD2
MOVR7,#00H
AJMPSCORES
ADD2:
INCR7
DEC2:
JZSETR3;
若A为零转SETR2
DECR7
SETR3:
MOVR7,#63H
BACK2:
RET
*****抢答倒计时和回答倒计时程序*****
REASK:
MOVA,R2;
重答重新计时
MOVR6,A
CLRRING
BACKT:
MOVR0,#00H;
重置定时器中断次数
重置定时器
BACKTIM:
MOVA,R6;
R6保存了倒计时的时间,之前先将抢答时间或回答时间给R6
DIVAB;
除十分出个位/十位
MOV30H,A;
十位存于(30H)
MOV31H,B;
个位存于(31H)
MOVR5,30H;
取十位
MOVR4,31H;
取个位
MOVA,R6
SUBBA,#07H;
(A)-CY-#07H-->
A
JNCLARGER;
大于5s跳到LARGER,小于等于5s会提醒
MOVA,R0
CJNEA,#0AH,FULL;
1s中0.5s向下运行
CLRRING
AJMPCHECK
FULL:
CJNEA,#14H,CHECK;
下面是1s的情况,响并显示号数并清R0,重新计
SETBRING
JZTUICH00;
计时完毕
MOVR0,#00H
DECR6;
一秒标志减1
LARGER:
如果1s向下运行,否者跳到查"
停/显示"
计时一秒R6自动减1
CHECK:
JNBOK,AGAIN;
只在回答倒计时才有效
JNBP3.1,TUICHU;
如按下停止键退出
AJMPNEXTT
AGAIN:
JNBP3.0,REASK;
判断是否重新答题
JNBP3.6,TUICH00;
是否预先结束
NEXTT:
JBOK,FIND;
如果是抢答倒计时,如是则查询抢答,否者跳过查询继续倒数(这里起到锁抢答作用)
AJMPBACKTIM
TUICH00:
JBOK,TUICHU;
判断退出时是否在抢答中
AJMPTUICHU0
FIND:
MOVA,36H
JNBACC.0,TRUE1
JNBACC.1,TRUE2
JNBACC.2,TRUE3
JNBACC.3,TRUE4
JNBACC.4,TRUE5
JNBACC.5,TRUE6
JNBACC.6,TRUE7
JNBACC.7,TR8
TR8:
AJMPTRUE8
TUICHU:
CLROK;
如果按下了"
停止键"
执行的程序
CLRRING
SETBP2.7;
指示灯熄灭
AJMPSTART
*****正常抢答处理程序*****
TRUE1:
答题时间R2送R6
CLRP2.4
CLRP2.5
CLRP2.6;
显示抢答结果
AJMPTRUEE
TRUE2:
SETBP2.4
CLRP2.6
TRUE3:
CLRP2.4
SETBP2.5
CLRP2.6
TRUE4:
AJMPTRUEE
TRUE5:
ACALLBARK
SETBP2.6
TRUE6:
SETBP2.6
TRUE7:
TRUE8:
TRUEE:
CLRP2.7;
启动74138
CLROK;
封锁抢答
ASK:
MOVR4,31H
ACALLXIANSHI
JBP3.0,ASK;
等待开始答题指令
ACALLBARK
AJMPBACKT
*****选择分数修改位*****
TUICHU0:
MOVA,36H
JNBACC.0,SCO1
JNBACC.1,SCO2
JNBACC.2,SCO3
JNBACC.3,SCO4
JNBACC.4,SCO5
JNBACC.5,SCO6
JNBACC.6,SCO7
JNBACC.7,SC8
SC8:
AJMPSCO8
TUICHUU:
SCO1:
ACALLBARK
MOVR7,50H
MOVR3,#01H
ACALLSCORES
MOV50H,R7
AJMPTUICHUU
SCO2:
MOVR7,51H
MOVR3,#02H
MOV51H,R7
SCO3:
MOVR7,52H
MOVR3,#03H
MOV52H,R7
SCO4:
MOVR7,53H
MOVR3,#04H
MOV53H,R7
SCO5:
MOVR7,54H
MOVR3,#05H
MOV54H,R7
SCO6:
MOVR7,55H
MOVR3,#06H
MOV55H,R7
SCO7:
MOVR7,56H
MOVR3,#07H
MOV56H,R7
SCO8:
MOVR7,57H
MOVR3,#08H
MOV57H,R7
*****抢答犯规程序*****
ERROR:
MOVTL1,#0B0H
MOV34H,R3;
犯规号数暂存与(34H)
HERE:
CJNEA,#06H,FLASH;
0.3s向下运行->
灭并停响
MOVR4,#0AH
MOVR5,#0AH;
三灯全灭
AJMPCHECK1
FLASH:
CJNEA,#0CH,CHECK1;
下面是0.8s的情况,响并显示号数并清R0,重新计
MOVR3,34H;
取回号数
MOVR4,#0BH;
显示EE和号数
CHECK1:
JNBP3.6,TUICHU1;
处理犯规
JNBP3.1,STOP;
退出犯规处理
AJMPHERE
TUICHU1:
CLRRING
CLROK
STOP:
AJMPTUICHU
*****显示程序*****
XIANSHI:
MOVDPTR,#DAT1;
查表显示程序,利用P0口做段选码口输出/P2低三位做位选码输出,
MOVA,R3
MOVCA,@A+DPTR
SETBP2.2
CLRP2.0
MOVP0,A
ACALLDELAY2
MOVDPTR,#DAT2
MOVA,R5
SETBP2.0
CLRP2.1
MOVA,R4
SETBP2.1
CLRP2.2
DAT1:
DB00H,06H,5BH,4FH,66H,6DH,7DH,07H,7FH,6FH,00H,79H
;
"
灭"
"
1"
2"
3"
4"
5"
6"
7"
8"
9"
E"
DAT2:
DB3FH,06H,5BH,4FH,66H,6DH,7DH,07H,7FH,6FH,00H,79H
第一个为零,其他与上相同,因为十位如果为零显示熄灭
****加减时间延时******
DELAY1:
MOV35H,#08H
LOOP0:
ACALLXIANSHI
DJNZ35H,LOOP0
*****延时去抖动用到*****
DELAY:
MOV32H,#10H
LOOP:
MOV33H,#0AFH
LOOP1:
DJNZ33H,LOOP1
DJNZ32H,LOOP
*****延时用于显示*****
DELAY2:
MOV32H,#43H
LOOP3:
MOV33H,#1EH
MOVA,R7;
每隔60~70个机器周期读一次P1口,全为1时为无效数据,继续读,有一个不为1时,转到正常抢答处理
JNZREAD0;
没读到有效数据时继续转到READ0
LOOP2:
DJNZ33H,LOOP2
DJNZ32H,LOOP3
*****读抢答按键数据口程序*****
由于在读抢答数据口的时候,单片机首先进入倒计时程序,再调用显示程序,最后才检测按键口
然而在检测按键口时动态扫描要调用三次延时程序.这样就会导致读数据口出现滞后,造成1号优先最高.8号最低.
故采用在延时子程序中加了读数据口程序.保证了灵敏度和可靠性
READ0:
MOVA,P1
CJNEA,#0FFH,AA1;
当不全为1时的数据为有效数据
AA0: