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基于單片機控制的校園自動打鈴器作息時鐘設計-大學學位論文范文模板參考資料-資料下載頁

2024-12-07 09:42本頁面

【導讀】本文介紹了以AT89S51單片機為控制核心的自動打鈴器產品，該電路具有時鐘功能，輸出效果由報警模塊與顯示模塊組成，顯示模塊主要采用數碼管來顯示時間，鍵對時間進行調整。該打鈴器是一種電路比較簡單，功能完善，且比較實用的自動打鈴器。它不但可以適用于學校及企業(yè)工廠等場所。

　　

【正文】 WEIXUAN1_END: JMP ZUOXI_1 。*************************************************** 。作息調整的段選程序 。*************************************************** DUANXUAN1: CALL DSP_SHANSHUO JNB ,DUANXUAN1 INC @R0 MOV A,@R0 CJNE A,10,DUANXUAN 4 1_1 MOV @R0,0 DUANXUAN1_1: DEC R1 DEC R1 MOV A,30H SWAP A ORL A,31H MOV @R1,A INC R1 MOV A,33H SWAP A ORL A,34H MOV @R1,A INC R1 JMP ZUOXI_1 。*************************************************** 。作息調整的確定程序 。*************************************************** QUEDING1: CALL DSP_SHANSHUO JNB ,QUEDING1 MOV 30H,40H MOV 31H,41H MOV 32H,42H MOV 33H,43H MOV 34H,44H MOV 35H,45H MOV 36H,46H MOV 37H,47H SETBEA SETBTR0 SETBET0 JMP LOOP 。*************************************************** 。讀出作息數據子程序 。*************************************************** ZUOXI_READ: MOV A,@R1 ANL A,0F0H SWAP A MOV 30H,A MOV A,@R1 ANL A,0FH MOV 31H,A INC R1 MOV A,@R1 ANL A,0F0H SWAP A MOV 33H,A MOV A,@R1 ANL A,0FH MOV 34H,A INC R1 MOV A,R7 ANL A,0F0H SWAP A MOV 36H,A MOV A,R7 ANL A,0FH MOV 37H,A RET 。*************************************************** 。T0 中斷服務程序 。*************************************************** ZD_ITT0: MOV TH0,3CH MOV TL0,0B0H DJNZ 38H,ZD_ITT0_END MOV 38H,20 INC 37H JNB 00H,ZD_ITT0_2 MOV A,37H CJNE A,8,ZD_ITT0_3 ZD_ITT0_4: AJMP ZD_ITT0_2 ZD_ITT0_3: JNC ZD_ITT0_4 CLR ZD_ITT0_2: MOV A,37H CJNE 5 A,10,ZD_ITT0_END MOV 37H,0 INC 36H MOV A,36H CJNE A,06H,ZD_ITT0_END MOV 36H,0 INC 34H MOV A,34H CJNE A,10,ZD_ITT0_END MOV 34H,0 INC 33H MOV A,33H CJNE A,6,ZD_ITT0_END MOV 33H,0 INC 31H MOV A,31H CJNE A,10,ZD_ITT0_1 MOV 31H,0 INC 30H ZD_ITT0_1: MOV A,30H SWAP A ORL A,31H CJNE A,24H,ZD_ITT0_END MOV 30H,0 MOV 31H,0 ZD_ITT0_END: RETI 。**************************************************************************************** 。閃爍子程序 。**************************************************************************************** DSP_SHANSHUO: MOV A,@R0 MOV B,A MOV R4,7 MOV @R0,11 DSP_SS_1: ACALL DISPLAY DJNZR4,DSP_SS_1 MOV A,B MOV @R0,A MOV R4,7 DSP_SS_2: ACALL DISPLAY DJNZR4,DSP_SS_2 RET 。*************************************************** 。顯示子程序 。*************************************************** DISPLAY: MOV DPTR,TAB2 MOV P2,0FEH MOV A,30H MOVC A,@A+DPTR MOV P0,A CALL DS1MS MOV P2,0FDH MOV A,31H MOVC A,@A+DPTR MOV P0,A CALL DS1MS MOV P2,0FBH MOV A,32H MOVC A,@A+DPTR MOV P0,A CALL DS1MS MOV P2,0F7H MOV A,33H MOVC A,@A+DPTR MOV P0,A CALL DS1MS MOV P2,0EFH 6 MOV A,34H MOVC A,@A+DPTR MOV P0,A CALL DS1MS MOV P2,0DFH MOV A,35H MOVC A,@A+DPTR MOV P0,A CALL DS1MS MOV P2,0BFH MOV A,36H MOVC A,@A+DPTR MOV P0,A CALL DS1MS MOV P2,07FH MOV A,37H MOVC A,@A+DPTR MOV P0,A CALL DS1MS RET DS1MS: MOV TH1,0FCH MOV TL1,18H SETBTR1 DS1MS_1: JBC TF1,DS1MS_2 SJMPDS1MS_1 DS1MS_2: CLR TR1 RET TAB1: DB 06H,10H,06H,35H,07H,15H,07H,45H,08H,00H DB 08H,40H,08H,50H,09H,30H,09H,50H,10H,30H DB 10H,40H,11H,20H,13H,15H,13H,30H,14H,10H DB 14H,20H,15H,00H,15H,20H,16H,00H,16H,10H DB 16H,50H,18H,30H,18H,40H,19H,30H,19H,40H DB 20H,30H,20H,40H,21H,20H TAB2: DB 3FH,006H,05BH,04FH,066H,06DH,07DH,007H,07FH,06FH,040H END
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