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1、三．程序清单及程序流程框图ORG0000HLJMPMAINMAIN:MOVR0,#30HMOVR2,#10HCLRAA1:MOV@R0,AINCR0INCADJNZR2,A1MOVR0,#30HMOVR1,#40HMOVR2,#10HA2:MOVA,@R0MOV@R1,AINCR0INCR1DJNZR2,A2MOVR1,#40HMOVDPTR,#4800HMOVR2,#10HA3:MOVA,@R1MOVX@DPTR,AINCR1INCDPTRDJNZR2,A3MOVSP,#60HMOVR2,#10HMOVDPTR,#4800HPUSHDPLPUSHDPHMOVDPTR,#5800HMOV
2、R3,DPLMOVR4,DPHA4:POPDPHPOPDPLMOVXA,@DPTRINCDPTRPUSHDPLPUSHDPHMOVDPL,R3MOVDPH,R4MOVX@DPTR,AINCDPTRMOVR3,DPLMOVR4,DPHDJNZR2,A4MOVR0,#50HMOVDPTR,#5800HMOVR2,#10HA5:MOVXA,@DPTRMOV@R0,AINCR0INCDPTRDJNZR2,A5POPDPHPOPDPLHERE:LJMPHEREEND三．实验电路四．程序清单及流程图程序一ORG0000HLJMPMAINORG000BHLJMPIPTOMAIN:MOVSP,#30HM
3、OVTMOD,#01HCLR00HSETBEASETBET0MOVTH0,#3CHMOVTL0,#0B0HMOVR1,#14HSETBTR0MOVA,#0feHMOVP1,ANT:JNB00H,NTRLAMOVP1,ACLR00HLJMPNTIPTO:MOVTH0,#3CHMOVTL0,#0B0HDJNZR1,TIOMOVR1,#14HSETB00HTIO:RETIEND程序二只需将程序一中“RLA”改为“RRA”即可实现其功能。程序三ORG0000HLJMPMAINORG000BHLJMPIPTOMAIN:MOVSP,#30HMOVTMOD,#01HCLR00HSETBEASETBET
4、0MOVTH0,#3CHMOVTL0,#0B0HMOVR2,#0AHMOVR1,#02HSETBTR0MOVA,#0feHMOVP1,ANT:SETBP3.0NT0:JNB01H,NT0CLRP3.0CLR01HNT1:JNB00H,NT1CLR01HRLAMOVP1,ACLR00HLJMPNTIPTO:MOVTH0,#3CHMOVTL0,#0B0HDJNZR2,TIOMOVR2,#0AHSETB01HDJNZR1,TIOMOVR1,#02HSETB00HTIO:RETIEND程序四（思考题程序）ORG0000HLJMPMAINORG000BHLJMPIPTOMAIN:MOVSP,#30
5、HMOVP1,#0ffHMOVTMOD,#01HCLR00HSETBEASETBET0MOVTH0,#3CHMOVTL0,#0B0HMOVR1,#14HSETBTR0MOVA,#00HNT:JNB00H,NTINCAMOVR3,ACPLAMOVP1,ACLR00HMOVA,R3LJMPNTIPTO:MOVTH0,#3CHMOVTL0,#0B0HDJNZR1,TIOMOVR1,#14HSETB00HTIO:RETIEND三．电路原理图四.程序清单及流程图程序一ORG0000HLJMPMAINMAIN:MOVTMOD,#02HMOVTH0,#9CHMOVTL0,#9CHSETBTR0SETB
6、P1.0HERE:JNBTF0,HERECPLP1.0CLRTF0LJMPHEREEND程序二ORG0000HLJMPMAINORG000BHLJMPIPTOMAIN:MOVSP,#60HMOVTMOD,#02HMOVIE,#82HMOVTH0,#88HMOVTL0,#88HSETBTR0SETBP1.1HERE:LJMPHEREIPTO:CPLP1.1RETIEND程序三（思考题）ORG0000HLJMPMAINMAIN:MOVTMOD,#11HMOVTH0,#0FEHMOVTL0,#0D4HMOVTH1,#0FFHMOVTL1,#38HSETBTR1SETBP1.0HERE:JNBT
7、F1,HERECPLP1.0SETBTR0CLRTF1CLRTR1MOVTH1,#0FFHMOVTL1,#38HHERE1:JNBTF0,HERE1CPLP1.0SETBTR1CLRTF0CLRTR0MOVTH0,#0FEHMOVTL0,#0D4HLJMPHEREEND五.实验结果周期为200us方波周期为240us方波周期为500us占空比为2:5的方波三、电路原理图四、程序清单及流程图程序1：ORG0000HLJMPMAINMA
