51单片机 P1口转弯灯实验程序(青岛大学)小白发布

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1、;====================P1口转弯灯实验====================ORG0C30HPX00:MOVP1,#0FFH;初始化PX03:MOVA,P1MOVB,AANLA,#03HCJNEA,#01H,PX01;满足只是P1.0为高条件吗?JB00H,PX04;闪烁标志位CLRP1.4CLRP1.5;开右灯SETBP1.6SETBP1.7;关左灯MOVR2,#20HLCALLDELY;延时SETB00H;置标志位LJMPPX03;继续查状态PX04:SETBP1.4SETBP1.5SETBP1.6;关

2、灯SETBP1.7MOVR2,#20HLCALLDELY;延时CLR00H;清标志位AJMPPX03;继续查状态PX01:CJNEA,#02H,PX02;满足只是P1.1为高条件吗?JB01H,PX05;判标志位SETBP1.4SETBP1.5;开左灯CLRP1.6CLRP1.7;关右灯MOVR2,#20H;延时LCALLDELYSETB01H;置标志位LJMPPX03;继续查状态PX05:SETBP1.4SETBP1.5SETBP1.6;关灯SETBP1.7MOVR2,#20HLCALLDELY;延时CLR01H;清标志位LJ

3、MPPX03;继续查状态PX02:SETBP1.4SETBP1.5SETBP1.6;关灯SETBP1.7LJMPPX03;继续;---------------------------------------------DELY:PUSH02HDEL2:PUSH02HDEL3:PUSH02H;延时DEL4:DJNZR2,DEL4POP02HDJNZR2,DEL3POP02HDJNZR2,DEL2POP02HDJNZR2,DELYRET;--------------------------------------------END实

4、验1-3ORG0810HJ100:MOVA,#00HJ101:JBP3.3,J101MOVR2,#20HLCALLDELYJBP3.3,J101J102:JNBP3.3,J102MOVR2,#20HLCALLDELYJNBP3.3,J102INCAPUSHACCCPLAMOVP1,APOPACCAJMPJ101;;------------------------------------------------DELY:PUSH02HDEL2:PUSH02HDEL3:PUSH02HDEL4:DJNZR2,DEL4POP02HDJN

5、ZR2,DEL3POP02HDJNZR2,DEL2POP02HDJNZR2,DELYRET;------------------------------------------------END