基于單片機(jī)的搶答器系統(tǒng)設(shè)計(jì)報(bào)告(終稿)-資料下載頁(yè)
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【正文】 ECOUNTQUIT: CLR OK。如果按下了停止鍵執(zhí)行的程序 CLR RING ACALL BARK AJMP START。=====正常搶答處理程序=====TRUE1: ACALL BARK。按鍵發(fā)聲 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 COUNTTRUE2: ACALL BARK。 MOV R3,02H CLR OK AJMP COUNTTRUE3: ACALL BARK。 MOV R3,03H CLR OK AJMP COUNTTRUE4: ACALL BARK。 MOV R3,04H CLR OK AJMP COUNTTRUE5: ACALL BARK。 MOV R3,05H CLR OK AJMP COUNTTRUE6: ACALL BARK。 MOV R3,06H CLR OK AJMP COUNTTRUE7: ACALL BARK。 MOV R3,07H CLR OK AJMP COUNTTRUE8: ACALL BARK。 MOV R3,08H CLR OK AJMP COUNT。=====犯規(guī)搶答程序=====ERROR: MOV R0,00H MOV TH1,3CH MOV TL1,0B0H MOV 34H,R3。犯規(guī)號(hào)數(shù)暫存于(34H)HERE: MOV A,R0 CJNE A,0AH,FLASH。A!=0AH則轉(zhuǎn)移,滅并停響 CLR RING MOV R3,0AH MOV R4,0AH MOV R5,0AH。三燈全滅 AJMP CHECK1 FLASH: CJNE A,14H,CHECK1。下面是1s的情況,響并顯示號(hào)數(shù)并清R0,重新計(jì) SETB RING MOV R0,00H MOV R3,34H。取回號(hào)數(shù) MOV R5,0BH MOV R4,0BH。顯示pp和號(hào)數(shù) AJMP CHECK1CHECK1: JNB ,QUIT1 ACALL DISPLAY AJMP HEREQUIT1: CLR RING CLR OK AJMP START。=====顯示程序=====DISPLAY: MOV DPTR,DAT1。查表顯示程序,利用P0口做段選碼口輸出/P2口低三位做位選碼輸出 MOV A,R3 MOVC A,@A+DPTR MOV P2,0feH MOV P0,A ACALL DELAY MOV DPTR,DAT2 MOV A,R5 MOVC A,@A+DPTR MOV P2,0fdH MOV P0,A ACALL DELAY MOV A,R4 MOVC A,@A+DPTR MOV P2,0fbH MOV P0,A ACALL DELAY RETDAT1:DB 00h,06h,5bh,4fh,66h,6dh,7dh,07h,7fh,6fh,00H,73H 。滅,1,2,3,4,5,6,7,8,9,滅,pDAT2:DB 3fh,06h,5bh,4fh,66h,6dh,7dh,07h,7fh,6fh,00H,73H 。第一個(gè)為零,其他與上相同,因?yàn)槭蝗绻麨榱泔@示熄滅。=====報(bào)警延時(shí)======DELAY1: MOV 35H,08HLOOP0: ACALL DISPLAY DJNZ 35H,LOOP0 。若(35H)1非0循環(huán) 8次 RET。=====延時(shí)(顯示和去抖動(dòng)用到)=====DELAY: MOV 32H,12HLOOP: MOV 33H,0AFHLOOP1: DJNZ 33H,LOOP1 。若(33H)1非0則跳轉(zhuǎn) DJNZ 32H,LOOP RET。=====發(fā)聲程序=====BARK: SETB RING 。使RING=1 ACALL DELAY1 ACALL DELAY1 CLR RING。按鍵發(fā)聲 RET。=====TO溢出中斷(響鈴程序)=====TT0: MOV TH0,0ECH MOV TL0,0FFH JNB RING,OUT。 CPL 。OUT: RETI。=====T1溢出中斷(計(jì)時(shí)程序)=====TT1: MOV TH1,3CH MOV TL1,0B0H INC R0 RETI EN
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