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單片機(jī)作息時(shí)間控制器課程設(shè)計(jì)-閱讀頁

2025-07-11 12:57本頁面
  

【正文】 NB 7CH,SECH74MOV R0,2FHSJMP ADD1SECH74:NOPJNB 74H,SECH6CMOV R0,2EHSJMP ADD1SECH64C:NOPJNP 6CH,SECH64MOV R0,2BHSJMP ADD1NOPNOPERR2: RETNOPADD1: NOPMOV A,@R0ADD A,01HDA AXCHD A,@R0RETv. 校時(shí)時(shí)間置入程序模塊。TIMSET:NOP 。R0ANL A,0FHSWAP AMOV R7,ADEC R0MOV A,@R0ANL A,0FHADD A,R7MOV @R1,ADEC R0DEC R1DJNZ R2,LD1MOV 21H,00HCLR 0F4HRETNOPNOP 將小數(shù)點(diǎn)從左向右依次移動(dòng)1位。小數(shù)點(diǎn)如移到最右邊1位,若再按1次移位鍵,小數(shù)點(diǎn)自動(dòng)返回到最左邊一位上。冬令DB 07H,20H,07H,50H,07H,58H,08H,00H,08H,45HDB 08H,53H,08H,55H,09H,40H,09H,55H,09H,58HDB 10H,00H,10H,45H,10H,53H,10H,55H,11H,40HDB 13H,00H,13H,13H,13H,15H,14H,00H,14H,13HDB 14H,15H,15H,00H,15H,13H,15H,15H,16H,00HDB 17H,30H,18H,15H,19H,00H,19H,35H,19H,40HDB 20H,30H,21H、00H,21H,30H,0FFH,0FFH,0FFHTABLE3:DB 06H,00H,06H,20H,06H,40H,07H,10H,07H,15H。第一,定時(shí)器溢出產(chǎn)生中斷請求,CPU并不一定立即響應(yīng)中煌,而可能需要延遲一定的中斷響應(yīng)時(shí)間之后才能響應(yīng)中斷,中斷響應(yīng)時(shí)間大約為3~8個(gè)機(jī)器周期。為了保證計(jì)時(shí)精度,必須采取措施進(jìn)行補(bǔ)償。具體應(yīng)調(diào)整為多大,一般需要通過調(diào)試來確定。可以滿足精度要求。第6章 課程總結(jié)說實(shí)話,兩周的時(shí)間說長不長,說短也不短,兩周之前,我們對單片機(jī)僅停留在課本上,在理論層面上,那些芯片的具體應(yīng)用都不知道怎么用,理論跟實(shí)際好像不能結(jié)合起來。雖然這一個(gè)系統(tǒng)參考了許多相關(guān)的文章,但是我還是從中學(xué)到了許多知識(shí),并且在該系統(tǒng)中融入了自己的想法。而在進(jìn)行硬件系統(tǒng)設(shè)計(jì)時(shí)我們應(yīng)當(dāng)盡量做到:盡可能的選擇典型電路,并符合單片機(jī)的常規(guī)使用方法;在充分滿足系統(tǒng)功能要求前提下,留余地以便于二次開發(fā);硬件結(jié)構(gòu)設(shè)計(jì)應(yīng)與軟件設(shè)計(jì)方案一并考慮;整個(gè)系統(tǒng)相關(guān)器件要力求性能的匹配;硬件上要有可靠性與抗干擾設(shè)計(jì);充分考慮單片機(jī)的帶載驅(qū)動(dòng)能力。通過這次設(shè)計(jì)使我對單片機(jī)有了更深入的了解以培養(yǎng)我們的動(dòng)手能力。跳轉(zhuǎn)入主程序0030H ORG 000BH AJMP CTCINT 。主程序入口地址:0030H NOP NOP MOV A,OFFH 。P0口為字形口,低電平有效MOV P1,A 。P2口是字位口,低電平有效MOV P3,A 。關(guān)閉報(bào)時(shí)音樂輸出(T0=1)SETB T1 。否則RAM清零初始化CLR ALOOP0: MOV R0,A DEC R0DJNZ R1, LOOP0 。設(shè)置棧指針MOV IP,02H 。定時(shí)器T0開中斷MOV TMOD,01H。設(shè)置定時(shí)器T0初值MOV TH0,3CHSETB TR0。重置堆棧底位置LCALL DISP ;調(diào)用顯示子程序NOP 。F3=0,則轉(zhuǎn)鍵掃描,判斷有無鍵按下NOP 。如INTO=0,則調(diào)用用戶自設(shè)定報(bào)時(shí)點(diǎn)LCALL TIMERA。TIMERB為用戶自設(shè)定報(bào)時(shí)點(diǎn)報(bào)時(shí)NOPNEXT1:LCALL CHECKEY。無鍵按下,返回重新掃描NOPLCALL KEYACC。T0的中斷服務(wù)子程序MOV TL0,0B4H。保護(hù)主程序現(xiàn)場數(shù)據(jù)PUSH PSWNOPSETB RS0。SELECT 1 AREAINC 20H。(F4H)為鍵處理標(biāo)志位,在鍵處理過程中不顯示秒點(diǎn)CJNE A,05H,CTNUCCTNUC: JC LC2。未計(jì)滿1S則退出中斷MOV 20H,00H。F0H=1為報(bào)時(shí)擴(kuò)音機(jī)預(yù)熱延時(shí)標(biāo)志位MOV A,25H。(26H)中存放報(bào)時(shí)放音的延時(shí)時(shí)間值CLR TONEXTE: JNB OF1H,NEXTF 。判斷報(bào)時(shí)放音延時(shí)是否結(jié)束CLR OF1H 。對秒計(jì)數(shù)單元(21H)進(jìn)行累計(jì)計(jì)數(shù)ADD A,01HDA AMOV 21H,ACJNE A,06H,RTNH 。(F3H)為分值有變更標(biāo)志位NEXT: MOV A,22H 。時(shí)單元加1DA AMOV 23H,A 。星期計(jì)數(shù)單元(24H)加1DA AMOV 24H,ACJNE A,07H,RTDNMOV 24H,00HRTDN: NOPJNB OF3H,RTDH 。確認(rèn)(F4=0)正在鍵處理,則返回LDDA: NOP 。(24H、23H、22H、)送(2FH~2BH)MOV R1,2FHMOV R2,02HMOV A,@R0ANL A,0FHMOV @R1,ADEC R0DEC R1LD1: MOV A,@R0 。中斷返回,并恢復(fù)現(xiàn)場數(shù)據(jù)NOPPOP PSWPOP ACCRETIDISP:NOP 。關(guān)閉顯示MOV P2,A 。P0口為字形碼輸出口 NOP NOP MOV R0,2FH 。位控制字LOOP1: MOV A,R1NOPMOV P2,A 。取顯示緩沖區(qū)中的顯示字符數(shù)MOVC A,@A+DPTR 。輸出字形碼MOV R2,00HLOOP2: DJNZ R2,LOOP2 。顯示下一個(gè)字符MOV A,R1CLR CRRC AMOV R1,AJNZ LOOP1 。帶小數(shù)點(diǎn)時(shí)的字符顯示字形表DB 0FFH,0EFH、0F7H,0FCH,0B9H,0F9H,0F1HNOPCHECKEYA:NOP 。判斷是否有鍵按下CPL AANL A,3FHJZ RETXLCALL DISP 。當(dāng)前值存放在R6中K1: LCALL DISP 。本次用戶設(shè)定報(bào)時(shí)點(diǎn)首址為40HMOV A,@R0ANL A,OFHRL AADD A,R1 。定時(shí)設(shè)定時(shí)間置入子程序NOPMOV R2,02HLDD: MOV A,@R0 。自設(shè)定報(bào)時(shí)點(diǎn)編號由(2FH)指定MOV R1,40H 。報(bào)時(shí)點(diǎn)編號乘2加首址,為其存放的實(shí)際地址MOV R1,ADEC R0NOP 。將小時(shí)和分鐘值解壓縮后裝入相應(yīng)顯示單元中SWAP AXCHD A,@R0DEC R0INC R1DJNZ R2,LDRNOPCLR 0F4HNOPRETNOP KEYACC: NOP 。按鍵處理子程序JB ACC.0,SHIFTP 。是加1鍵,轉(zhuǎn)ADDONEJB ACC.2,SUBONE 。是時(shí)鐘校對鍵轉(zhuǎn)TIMSETJB ACC.4,USESET 。顯示用戶定時(shí)時(shí)間點(diǎn)NOPNOPNOPRETNOPADDONE:NOPNOPJNB 7CH,SECH74MOV R0,2FHSJMP ADD1SECH74:NOPJNB 74H,SECH6CMOV R0,2EHSJMP ADD1SECH64C:NOPJNP 6CH,SECH64MOV R0,2BHSJMP ADD1NOPNOPERR2: RETNOPADD1: NOPMOV A,@R0ADD A,01HDA AXCHD A,@R0RETTIMSET:NOP 。R0ANL A,0FHSWAP AMOV R7,ADEC R0MOV A,@R0ANL A,0FHADD A,R7MOV @R1,ADEC R0DEC R1DJNZ R2,LD1MOV 21H,00HCLR 0F4HRETNOPNOP。冬令DB 07H,20H,07H,50H,07H,58H,08H,00H,08H,45HDB 08H,53H,08H,55H,09H,40H,09H,55H,09H,58HDB 10H,00H,10H,45H,10H,53H,10H,55H,11H,40HDB 13H,00H,13H,13H,13H,15H,14H,00H,14H,13HDB 14H,15H,15H,00H,15H,13H,15H,15H,16H,00HDB 17H,30H,18H,15H,19H,00H,19H,35H,19H,40HDB 20H,30H,21H、00H,21H,30H,0FFH,0FFH,0FFHTABLE3:DB 06H,00H,06H,20H,06H,40H,07H,10H,07H,15H。課程設(shè)計(jì)說明書裝訂順序:封面、任務(wù)書、目錄、正文、評分表、附件(非16K大小的圖紙及程
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