課程設(shè)計(jì)-單片機(jī)原理基于單片機(jī)的八路搶答器設(shè)計(jì)-閱讀頁(yè)
2024-09-02 11:27本頁(yè)面
【正文】 法搶答查詢 ACALL BARK MOV A,R1 MOV R6,A 。搶答標(biāo)志位,用于COUNT只程序中判斷是否查詢搶答 MOV R3,0AH 。進(jìn)入倒計(jì)時(shí)程序,查詢有效搶答的程序在COUNT里面NEXT: JNB ,FALSE1 JNB ,FALSE2 JNB ,FALSE3 JNB ,FALSE4 JNB ,FALSE5 JNB ,FALSE6 JNB ,TZ1 JNB ,TZ2 AJMP STARTTZ1: JMP FALSE7TZ2: JMP FALSE8。按鍵發(fā)聲 MOV R3,01H AJMP ERRORFALSE2: ACALL BARK MOV R3,02H AJMP ERRORFALSE3: ACALL BARK MOV R3,03H AJMP ERRORFALSE4: ACALL BARK MOV R3,04H AJMP ERRORFALSE5: ACALL BARK MOV R3,05H AJMP ERRORFALSE6: ACALL BARK MOV R3,06H AJMP ERRORFALSE7: ACALL BARK MOV R3,07H AJMP ERRORFALSE8: ACALL BARK MOV R3,08H AJMP ERROR。重置定時(shí)器中斷次數(shù) MOV TH1,3CH MOV TL1,0B0H 。R6保存了倒計(jì)時(shí)的時(shí)間,之前先將搶答時(shí)間或回答時(shí)間給R6 MOV B,0AH DIV AB 。十位存于(30H) MOV 31H,B 。取十位 MOV R4,31H 。大于5s跳到LARGER,小于等于5s會(huì)提醒 MOV A,R0 CJNE A,0AH,FULL 。下面是1s的情況,響并顯示號(hào)數(shù)并清R0,重新計(jì)時(shí) SETB RING MOV A,R6 JZ QUIT 。一秒標(biāo)志減1 AJMP CHECKLARGER: MOV A,R0 CJNE A,14H,CHECK 。計(jì)時(shí)一秒R6自動(dòng)減1 MOV R0,00HCHECK: JNB ,QUIT 。如果是搶答倒計(jì)時(shí),如是則查詢搶答,否者跳過(guò)查詢繼續(xù)倒數(shù)(這里起到鎖搶答作用) AJMP RECOUNTACCOUT: MOV A,DATA0 JNB ,TRUE1 JNB ,TRUE2 JNB ,TRUE3 JNB ,TRUE4 JNB ,TRUE5 JNB ,TRUE6 JNB ,TZ3 JNB ,TZ4 AJMP RECOUNT TZ3: JMP TRUE7 TZ4: JMP TRUE8 QUIT: CLR OK 。=====正常搶答處理程序=====TRUE1: ACALL BARK MOV A,R2 MOV R6,A 。因?yàn)榇痤}的計(jì)時(shí)不再查詢搶答,所以就鎖了搶答,回答倒計(jì)時(shí)開(kāi)始. AJMP COUNTTRUE2:ACALL BARK MOV A,R2 MOV R6,A MOV R3,02H CLR OK AJMP COUNTTRUE3:ACALL BARK MOV A,R2 MOV R6,A MOV R3,03H CLR OK AJMP COUNTTRUE4:ACALL BARK MOV A,R2 MOV R6,A MOV R3,04H CLR OK AJMP COUNTTRUE5: ACALL BARK MOV A,R2 MOV R6,A MOV R3,05H CLR OK AJMP COUNTTRUE6: ACALL BARK MOV A,R2 MOV R6,A MOV R3,06H CLR OK AJMP COUNTTRUE7: ACALL BARK MOV A,R2 MOV R6,A MOV R3,07H CLR OK AJMP COUNTTRUE8: ACALL BARK MOV A,R2 MOV R6,A MOV R3,08H CLR OK AJMP COUNT。犯規(guī)號(hào)數(shù)暫存與(34H)HERE: MOV A,R0 CJNE A,0AH,FLASH 。三燈全滅 AJMP CHECK1FLASH: CJNE A,14H,CHECK1 。取回號(hào)數(shù) MOV R5,0BH MOV R4,0BH 。=====顯示程序=====DISPLAY: MOV DPTR,DAT1 。滅,1,2,3,4,5,6,7,8,9,滅,PDAT2:DB 3fh,06h,5bh,4fh,66h,6dh,7dh,07h,7fh,6fh,00H,3fH 。=====延時(shí)(顯示和去抖動(dòng)用到)=====DELAY: MOV 32H,12HLOOP: MOV 33H,0AFHLOOP1: DJNZ 33H,LOOP1 DJNZ 32H,LOOPRET。按鍵發(fā)聲RET。 CPL 。=====T1溢出中斷(計(jì)時(shí)程序)=====T1INT: MOV TH1,3CH MOV TL1,0B0H INC R0RETI。183
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