八路搶答器說(shuō)明書(shū)-資料下載頁(yè)
2025-08-02 23:44本頁(yè)面
【正文】 ,TRUE6 JNB ,TRUE7 JNB ,TRUE8 AJMP RECOUNTQUIT: CLR OK 。如果按下了停止鍵執(zhí)行的程序 CLR RING AJMP START。======正常搶答處理程序======TRUE1: ACALL BARK 。調(diào)用發(fā)聲程序 MOV A,R2 MOV R6,A 。搶答時(shí)間R2送R6 MOV R3,01H CLR OK 。因?yàn)榇痤}的計(jì)時(shí)不再查詢搶答,所以就鎖了搶答 AJMP COUNT 。調(diào)用倒計(jì)時(shí)子程序TRUE2: ACALL BARK 。調(diào)用發(fā)聲程序 MOV A,R2 。搶答時(shí)間R2送R6 MOV R6,A MOV R3,02H CLR OK AJMP COUNT 。調(diào)用倒計(jì)時(shí)子程序TRUE3: ACALL BARK 。調(diào)用倒計(jì)時(shí)子程序 MOV A,R2 。搶答時(shí)間R2送R6 MOV R6,A MOV R3,03H CLR OK AJMP COUNT 。調(diào)用倒計(jì)時(shí)子程序TRUE4: ACALL BARK 。調(diào)用發(fā)聲程序 MOV A,R2 。搶答時(shí)間R2送R6 MOV R6,A MOV R3,04H CLR OK AJMP COUNT 。調(diào)用發(fā)聲程序TRUE5: ACALL BARK 。調(diào)用發(fā)聲程序 MOV A,R2 。搶答時(shí)間R2送R6 MOV R6,A MOV R3,05H CLR OK AJMP COUNT 。調(diào)用倒計(jì)時(shí)子程序TRUE6: ACALL BARK 。調(diào)用發(fā)聲程序 MOV A,R2 。搶答時(shí)間R2送R6 MOV R6,A MOV R3,06H CLR OK AJMP COUNT 。調(diào)用倒計(jì)時(shí)子程序TRUE7: ACALL BARK 。調(diào)用發(fā)聲程序 MOV A,R2 。搶答時(shí)間R2送R6 MOV R6,A MOV R3,07H CLR OK AJMP COUNT 。調(diào)用倒計(jì)時(shí)子程序TRUE8: ACALL BARK 。調(diào)用發(fā)聲程序 MOV A,R2 。搶答時(shí)間R2送R6 MOV R6,A MOV R3,08H CLR OK AJMP COUNT 。調(diào)用倒計(jì)時(shí)子程序。======延時(shí)6357個(gè)機(jī)器周期(去抖動(dòng)用到)======DELAY: MOV 32H,12HLOOP: MOV 33H,0AFHLOOP1: DJNZ 33H,LOOP1 DJNZ 32H,LOOP RET。 =====延時(shí)4236個(gè)機(jī)器周期(顯示用到)=====DELAY2: MOV 32H,43HLOOP3: MOV 33H,1EH MOV A,R7 。每隔60~70個(gè)機(jī)器周期讀一次P1口,全為1時(shí)為無(wú)效數(shù)據(jù),繼續(xù)讀,有一個(gè)不為1時(shí),轉(zhuǎn)到正常搶答處理 JNZ AAAA1 。沒(méi)讀到有效數(shù)據(jù)時(shí)繼續(xù)轉(zhuǎn)到AAAA1LOOP2: DJNZ 33H,LOOP2 DJNZ 32H,LOOP3 RET。======讀搶答鍵數(shù)據(jù)口程序====== 。由于在讀搶答數(shù)據(jù)口的時(shí)候，單片機(jī)首先進(jìn)入倒計(jì)時(shí)程序，再調(diào)用顯示程序，最后才檢測(cè)按鍵口 。然而在檢測(cè)按鍵口時(shí)動(dòng)態(tài)掃描要調(diào)用三次(4ms),. 。AAAA1: MOV A,P1 CJNE A,0FFH,AA1 。當(dāng)不全為1時(shí)的數(shù)據(jù)為有效數(shù)據(jù)AA0: MOV 36H,A 。將有效數(shù)據(jù)送到36H暫存 AJMP LOOP2AA1: DEC R7 AJMP AA0。======發(fā)聲程序======BARK: SETB RING ACALL DELAY ACALL DELAY CLR RING RET。======T0溢出中斷(響鈴程序)=====T0INT: MOV TH0,0ECH MOV TL0,0FFH JNB RING,OUT CPL 。RING。OUT: RETI。======T1溢出中斷(計(jì)時(shí)程序)======T1INT: MOV TH1,3CH MOV TL1,0B0H INC R0 RETI END附2：參考文獻(xiàn)【1】汪貴平 李登峰 等 新編單片機(jī)原理及應(yīng)用【M】.北京：機(jī)械工業(yè)出版社，2009.【2】【2】【3】查電子元器件資料：：//【4】萬(wàn)方數(shù)據(jù)： 18
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