單片機(jī)實(shí)驗(yàn)報(bào)告-在線瀏覽
2025-05-10 05:53本頁面
【正文】 MOV R7,100Y: MOV R6,50X: NOP DJNZ R6,X DJNZ R7,Y RETTABLE: DB 88H,0AFH,0C4H,86H,0A3H,92H,90H,8FH,80H,82H END實(shí)驗(yàn)結(jié)果：八段數(shù)碼顯示管如題目要求所示自增一顯示。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。實(shí)驗(yàn)二：驅(qū)動蜂鳴器實(shí)驗(yàn)實(shí)驗(yàn)內(nèi)容：。08424020192011年6月l 硬件實(shí)驗(yàn)：實(shí)驗(yàn)一：定時(shí)器中斷實(shí)驗(yàn)實(shí)驗(yàn)內(nèi)容：fosc=,T0方式2產(chǎn)生定時(shí)中斷實(shí)現(xiàn)秒表功能：數(shù)碼管后兩位顯示10ms；前兩位顯示秒數(shù)；K1/K2/K3鍵分別啟動/停止/清零，按鍵操作不分先后實(shí)驗(yàn)程序流程圖：主程序流程圖： 中斷程序流程圖： 實(shí)驗(yàn)程序：ORG 0000H LJMP MAIN ORG 000BH LJMP INTT0 ORG 0100HMAIN: MOV SP,70H CALL INI_ALLLOOP: CALL DISPLAY MOV DPTR,8000H MOVX A,DPTR JB ,NEXT SETB TR0NEXT: JB ,NEXT1 CLR TR0NEXT1: JB ,LOOP MOV R7,0H MOV R6,0H MOV R5,0H LJMP LOOP /*INTT0*/INTT0: PUSH PSW PUSH ACC INC R5 CJNE R5,40,CMP1CMP1: JC GOON MOV R5,0H INC R6 CJNE R6,100,CMP2CMP2: JC GOON MOV R6,0H INC R7 CJNE R7,100,CMP3CMP3: JC GOON MOV R7,0HGOON: POP ACC POP PSW RETI /*INIALL*/INI_ALL:MOV R7,0H MOV R6,0H MOV R5,0H MOV IE,82H MOV TMOD,02H MOV TH0,25 MOV TL0,25 RET /*DISPLAY*/DISPLAY:MOV DPTR,TABLE MOV A,R7 MOV B,10 DIV AB MOVC A,A+DPTR MOV 33H,A MOV A,B MOVC A,A+DPTR MOV 32H,A /**/ MOV A,R6 MOV B,10 DIV AB MOVC A,A+DPTR MOV
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