基于51單片機數字鐘設計(編輯修改稿)

　

【文章內容簡介】 MOV R4,00H用于控制調時快進速度設置為00H是為了在進入長按處理前加長延時區分用戶的長按與短按，防止誤快進 LOOP:進入長按處理LCALL DISPLAY使長按時顯示正常 MOV A,P1 CPL A ANL A,07HJB 47H,LOOP1INC R4調時快進間隔時間基準加1LOOP1:CJNE R1,03H,LOOP2如果調秒時長按，則不處理LJMP LOOP3LOOP2:CJNE R4,99H,LOOP3MOV R4,70H確認用戶長按后，重新設定起始值，加快調時快進速度SETB 46H長按調整（調時快進）標志LCALL ADD_KEYLCALL DEC_KEYLOOP3:JNZ LOOP 等待鍵釋放MOV A,R5輸出鍵值RETEXIT_KEY:RET/*****延時子程序*****/DELAY:MOV R7,150 DJNZ R7,$RET /*****選擇鍵處理子程序*****/ SET_KEY: CJNE R5,01H,EXIT選擇鍵鍵值INC R1調整選擇功能標志加一CJNE R1,4,EXITMOV R1,0MOV 24H,00H調時閃爍基準清零 RET/*****增加鍵處理子程序*****/ ADD_KEY: CJNE R5,02H,EXIT增加鍵鍵值CJNE R1,01H,NEXT1選擇鍵功能標志為1，調時，否則跳出MOV A,23HADD A,01HDA AMOV 23H,ACJNE A,24H,EXITMOV 23H,00HNEXT1:CJNE R1,02H,NEXT2選擇鍵功能標志為2，調分，否則跳出MOV A,22HADD A,01HDA AMOV 22H,ACJNE A,60H,EXITMOV 22H,00HNEXT2:CJNE R1,03H,EXIT選擇鍵功能標志為3，調秒，否則跳出MOV 21H,00H如增加鍵按下直接清零秒RET/*****減少鍵處理子程序*****/ DEC_KEY: CJNE R5,04H,EXIT減少鍵鍵值CJNE R1,01H,NEXT3選擇鍵功能標志為1，調時，否則跳出MOV A,23HADD A,99HDA AMOV 23H,ACJNE A,99H,EXITMOV 23H,23HNEXT3:CJNE R1,02H,NEXT4選擇鍵功能標志為2，調分，否則跳出MOV A,22HADD A,99HDA AMOV 22H,ACJNE A,99H,EXITMOV 22H,59HNEXT4:CJNE R1,03H,EXIT選擇鍵功能標志為3，調秒，否則跳出MOV 21H,00H如較少鍵按下直接清零秒RET/*****萬用返回子程序*****/EXIT: RET/*****數碼管字形編碼表*****/TABLE: DB 0C0H,0F9H,0A4H,0B0H,99H,92H,82H,0F8H,80H,90H,0FFH 。字形顯示編碼TABLE1:DB 0FFH,0F9H,0A4H,0B0H,99H,92H,82H,0F8H,80H,90H,0FFH 。小時位的十位數編碼，該位如果為0則不顯示//鬧鐘檢測MOV A,0AHJZ NAO2 。檢測鬧鐘開關 若關檢測下一個鬧鐘，否則檢測時間是否為鬧鐘設定時間MOV A,30HCJNE A,50H,NAO2MOV A,31HCJNE A,51H,NAO2MOV A,32HCJNE A,52H,NAO2AJMP XIANG 。時間為鬧鐘設定時間吻合 進入鬧鈴程序 下同NAO2:MOV A,0BHJZ NAO3MOV A,30HCJNE A,53H,NAO3MOV A,31HCJNE A,54H,NAO3MOV A,32HCJNE A,55H,NAO3AJMP XIANGNAO3:MOV A,0CHJZ NAO4MOV A,30HCJNE A,56H,NAO4MOV A,31HCJNE A,57H,NAO4MOV A,32HCJNE A,58H,NAO4AJMP XIANGNAO4:MOV A,0DHJZ NAO5MOV A,30HCJNE A,59H,NAO5MOV A,31HCJNE A,5AH,NAO5MOV A,32HCJNE A,5BH,NAO5AJMP XIANGNAO5:MOV A,0EHJZ BUMOV A,30HCJNE A,5CH,BUMOV A,31HCJNE A,5DH,BUMOV A,32HCJNE A,5EH,BUAJMP XIANG//檢測獨立按鍵BU: JB T0,ZHU1 。檢測s19是否按下 按下進入萬年歷界面，否則檢測矩陣鍵盤MOV A,3AH 。界面轉換標志取反即可使得時間和萬年歷界面相互轉換CPL AMOV 3AH,A//檢測矩陣鍵盤//檢測到按鍵1,2,3,4,5時進入對應的鬧鐘設置界面 檢測到0BH（對應s11）進入時間設置界面 檢測到0CH（對應s12）進入萬年歷設置界面//若未檢測到按鍵 則跳回主程序繼續下一個檢測周期ZHU1:MOV R7,0FHACALL JIANCEANJIAN 。矩陣鍵盤檢測子程序 將檢測到的鍵值存入r7CJNE R7,0FH,ZHU2AJMP ZHUXUNHUANZHU2:CJNE R7,0BH,ZHU3AJMP SHIJIANSHEZHIZHU3:CJNE R7,0CH,ZHU4AJMP WANNIANLISHEZHIZHU4:CJNE R7,01H,ZHU5AJMP NAOZHONGSHEZHIZHU5:CJNE R7,02H,ZHU6AJMP NAOZHONGSHEZHIZHU6:CJNE R7,03H,ZHU7AJMP NAOZHONGSHEZHIZHU7:CJNE R7,04H,ZHU8AJMP NAOZHONGSHEZHIZHU8:CJNE R7,05H,ZHUXUNHUAN0AJMP NAOZHONGSHEZHIZHUXUNHUAN0: AJMP ZHUXUNHUAN//年月日校正子程序 用于萬年歷進位和萬年歷設置 防止出現不存在的時間NYR:MOV A,33HCJNE A,32,MONTH 。日為32時，月進位日置1MOV 33H,01HAJMP MONTH0MONTH:CJNE A,31,MONTH1 。日為31時 分辨大小月及2月MOV A,34HCJNE A,4,MONTH2MOV 33H,01HAJMP MONTH0MONTH2:CJNE A,2,MONTH6MOV 33H,01H AJMP MONTH0MONTH6:CJNE A,6,MONTH9MOV 33H,01HAJMP MONTH0MONTH9:CJNE A,9,MONTH11MOV 33H,01HAJMP MONTH0MONTH11:CJNE A,11,RETURN0MOV 33H,01HAJMP MONTH0MONTH1: CJNE A,30,MONTH29 。日為30時分辨2月 MOV A,34HCJNE A,02H,RETURN0MOV 3