基于89c51的數(shù)字電子鐘設(shè)計(jì)-資料下載頁(yè)
【導(dǎo)讀】第1-2天：熟悉課程設(shè)計(jì)任務(wù)及要求，查閱技術(shù)資料，確定設(shè)計(jì)方案。第3-4天：按照確定的方案設(shè)計(jì)單元電路。要求畫(huà)出單元電路圖，元件及。第5-6天：軟件設(shè)計(jì)，編寫(xiě)程序。第7-8天：實(shí)驗(yàn)室調(diào)試。第9-10天：撰寫(xiě)課程設(shè)計(jì)報(bào)告。要求內(nèi)容完整、圖表清晰、文理流暢、格。式規(guī)范、方案合理、設(shè)計(jì)正確，篇幅合理。趨于人性化、智能化，這些電器設(shè)備大部分都含有CPU控制器或者是單片機(jī)。并且已經(jīng)深入到工業(yè)生產(chǎn)的各個(gè)環(huán)節(jié)以及人民生活的各個(gè)方面，如車間流。來(lái)控制的小型家電產(chǎn)品具有便攜實(shí)用，操作簡(jiǎn)單的特點(diǎn)。間計(jì)量的精度要求越來(lái)越高，應(yīng)用越來(lái)越廣。和分的校對(duì)，片選的靈活性好。時(shí)鐘電路在計(jì)算機(jī)系統(tǒng)中起著非常重要的作用，是保證系統(tǒng)正常工作的基礎(chǔ)。本文設(shè)計(jì)的日歷和時(shí)鐘的顯示廣泛用于小型智能家。利用單片機(jī)進(jìn)行控制，實(shí)時(shí)時(shí)鐘芯片DS1302進(jìn)行記時(shí)，外加掉電存儲(chǔ)電路和顯示電路，可實(shí)現(xiàn)時(shí)間的調(diào)整和顯示。設(shè)計(jì)，用最簡(jiǎn)單的電路布線和選用最經(jīng)濟(jì)實(shí)用的器件來(lái)達(dá)到設(shè)計(jì)要求。
【正文】 LJMP START ORG 0BH LJMP INT_T0 START: MOV 30H,00H MOV 31H,00H MOV 32H,12 MOV 48H,00H MOV 49H,00H MOV 4AH,00H MOV TMOD,01H MOV TH0,248 MOV TL0,248 SETB TR0 SETB ET0 SETB EA ADDMIAO:JB ,ADDFEN LCALL DELY10MS JB ,ADDFEN INC 30H MOV A,30H CJNE A,60,NS60 單片機(jī) 系統(tǒng) 課程設(shè)計(jì) 12 MOV 30H,00H NS60:LCALL DISP JNB ,$ ADDFEN:JB ,ADDSHI LCALL DELY10MS JB ,ADDSHI INC 31H MOV A,31H CJNE A,60,NM60 MOV 31H,00H NM60:LCALL DISP JNB ,$ ADDSHI:JB ,RETURN LCALL DELY10MS JB ,RETURN INC 32H MOV A,32H CJNE A,24,NH24 MOV 32H,00H NH24:LCALL DISP JNB ,$ RETURN: LJMP ADDMIAO DELY10MS:MOV R6,10 MOV R6,10 D1:MOV R7,248 DJNZ R7,$ DJNZ R6,D1 RET DISP: MOV A,40H ADD A,8 DEC A MOV R1,A MOV A,32H MOV B,10 DIV AB MOV @R1,A DEC R1 MOV A,B MOV @R1,A DEC R1 MOV A,10 MOV @R1,A DEC R1 MOV A,31H MOV B,10 DIV AB MOV @R1,A DEC R1 MOV A,B MOV @R1,A DEC R1 MOV A,10 MOV @R1,A DEC R1 MOV A,30H MOV B,10 DIV AB MOV @R1,A 單片機(jī) 系統(tǒng) 課程設(shè)計(jì) 13 DEC R1 MOV A,B MOV @R1,A DEC R1 RET INT_T0: MOV TH0,248 MOV TL0,248 MOV A,40H ADD A,48H MOV R0,A MOV A,@R0 MOV DPTR,TABLE MOVC A,@A+DPTR MOV P2,0FFH MOV P0,A MOV A,48H MOV DPTR,TAB MOVC A,@A+DPTR MOV P2,A INC 48H MOV A,48H CJNE A,08H,KNA MOV 48H,00H KNA:INC 49H MOV A,49H CJNE A,100,DONE MOV 49H,00H INC 4AH MOV A,4AH CJNE A,05H,DONE MOV 4AH,00H INC 30H MOV A,30H CJNE A,60,NEXT MOV 30H,00H INC 31H MOV A,31H CJNE A,60,NEXT MOV 31H,00H INC 32H MOV A,32H CJNE A,24,NEXT MOV 32H,00H NEXT:LCALL DISP DONE:RETI TABLE:DB 3FH,06H,5BH,4FH,66H,6DH,7DH,07H,7FH,6FH,00H TAB:DB 0FEH,0FDH,0FBH,0F7H,0EFH,0DFH,0BFH,07FH END
鄂ICP備17016276號(hào)-1