畢業(yè)設(shè)計(jì)基于單片機(jī)的智能交通紅綠燈控制系統(tǒng)設(shè)計(jì)(參考版)
2025-06-25 12:04本頁面
【正文】 使人們遠(yuǎn)離目前的交通擁塞的現(xiàn)象。并通過AT89C51來控制7448芯片的輸出口控制七段數(shù)碼管上的時(shí)間顯示；系統(tǒng)設(shè)計(jì)簡便、實(shí)用性強(qiáng)、操作簡單、程序設(shè)計(jì)簡便。6 結(jié) 論本系統(tǒng)就是利用了AT89C51芯片的I/O引腳。 原程序?qū)崿F(xiàn)：ORG 0000H TEMP EQU 24HTEMN EQU 25HLJMP MAIN ORG 0003HLJMP T0_INTORG 0013HLJMP TI_INTT0_INT: MOV A, P1PUSH ACCMOV P1, 0FFHMOV P1, 0F3HMOV P0, 00HJNB ,$ POP ACCMOV P1, ACCRETITI_INT: MOV A, P1PUSH ACC MOV P1, 0FFHMOV P1, 0DEHMOV P0,00HJNB ,$ POP ACCMOV P1, ARETIMAIN: SETB EASETB EX0SETB EX1CLR F0START1: MOV TEMP, 25MOV P1, 0F3HLOOP1: ACALL DELAYDEC TEMPMOV A,TEMPMOV P0, TEMPJNB ,START3JNB ,START11CJNE A,0, NEXT1LJMP START2NEXT1: LJMP LOOP1START11: MOV TEMP, 65MOV P1, 0F3HLOOP11: ACALL DELAYDEC TEMPMOV A,TEMPMOV P0, TEMPJNB ,START33JNB ,START1CJNE A,0, NEXT11LJMP START11NEXT11: LJMP LOOP11START2: MOV P1, 0F5HMOV TEMN,05LOOP2: ACALL DELAY1DEC TEMNMOV A,TEMNCJNE A, 0,NEXT2LJMP START3NEXT2: LJMP LOOP2START3: MOV TEMP, 25MOV P1,0DEHLOOP3: ACALL DELAYDEC TEMPMOV A,TEMP MOV P0, TEMPJNB ,START1JNB ,START33 CJNE A, 0,NEXT3LJMP START4NEXT3: LJMP LOOP3START33: MOV TEMP, 65MOV P1,0DEHLOOP33: ACALL DELAYDEC TEMPMOV A,TEMP MOV P0, TEMPJNB ,START11JNB ,START3 CJNE A, 0,NEXT33LJMP START4NEXT33: LJMP LOOP33START4: MOV P1, 0EEHMOV TEMN,05 LOOP4: ACALL DELAY1DEC TEMNMOV A, TEMNCJNE A,0,NEXT4LJMP START1NEXT4: LJMP LOO
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