單片機(jī)實(shí)驗(yàn)報(bào)告-wenkub
2023-04-07 05:53:47 本頁(yè)面
【正文】 V A,B MOVC A,A+DPTR MOV 30H,A /**/ MOV DPTR,8000H MOV A,33H MOVX DPTR,A MOV DPTR,8100H MOV A,32H MOVX DPTR,A MOV DPTR,8200H MOV A,31H MOVX DPTR,A MOV DPTR,8300H MOV A,30H MOVX DPTR,A RETTABLE: DB 88H,0AFH,0C4H,86H,0A3H,92H,90H,8FH,80H,82H END實(shí)驗(yàn)結(jié)果：數(shù)碼管后兩位顯示ms計(jì)數(shù)，前兩位顯示s計(jì)數(shù)，按K1鍵啟動(dòng)計(jì)數(shù)，K2鍵停止計(jì)數(shù)，K3鍵清零。實(shí)驗(yàn)程序：ORG 0H LJMP MAIN ORG 0100HMAIN: MOV SP,70HSTART: CPL LCALL DELAY LJMP STARTDELAY: MOV R7,200Y: MOV R6,100X: NOP DJNZ R6,X DJNZ R7,Y RET END實(shí)驗(yàn)結(jié)果：蜂鳴器發(fā)出聲響。 （2）將其中內(nèi)容傳送到200H開始的外部RAM中去。實(shí)驗(yàn)程序流程圖：實(shí)驗(yàn)程序： ORG 0000H LJMP MAIN ORG 0100HMAIN: MOV SP,70H MOV R0,30H MOV R7,30H MOV A,1LOOP1: MOV R0,A INC R0 INC A DJNZ R7,LOOP1 MOV R0,30H MOV R7,30H MOV R1,90HLOOP2: MOV A,R0 INC R0 JB 0E0H,TRANS JMP NTRANSTRANS: MOV R1,A INC R1NTRANS:DJNZ R7,LOOP2 END實(shí)驗(yàn)結(jié)果：內(nèi)部RAM中30H5FH中的數(shù)據(jù)為148；其中奇數(shù)傳送到90H單元。實(shí)驗(yàn)程序流程圖：實(shí)驗(yàn)程序：ORG 0000H LJMP MAIN ORG 0100HMAIN: MOV SP,70H MOV R0,30H MOV R1,31H MOV R0,0 MOV R1,0 MOV B,1 MOV R7,100L1: MOV A,R1 ADD A,B MOV R1,A MOV A,R0 ADDC A,0 MOV R0,A INC B DJNZ R7,L1END實(shí)驗(yàn)結(jié)果：（30H）=13H,(31H)=0BAH，即結(jié)果為13BAH=5050D。實(shí)驗(yàn)說(shuō)明：實(shí)驗(yàn)程序： ORG 0H LJMP MAIN ORG 0100HMAIN: MOV
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