課程設(shè)計(jì)-基于單片機(jī)音樂倒數(shù)計(jì)時(shí)器的設(shè)計(jì)(編輯修改稿)
2024-12-15 00:06 本頁面
【文章內(nèi)容簡(jiǎn)介】 R1,60,Q1 。比較分鐘是否到 60 MOV R1,1 。分鐘到 60重新賦值 Q1:SETB EA RETI JIAN1FEN:CLR EA 。外部中斷 1，分鐘微調(diào)減 1分鐘 CJNE R1,1,Q2 。比較分鐘是否到 1 MOV R1,60 。分鐘到 1重新賦值 Q2:DEC R1 SETB EA RETI TIME0:DJNZ R2,NEXT 。計(jì)數(shù)器中斷 0， T0 溢出 20次即 1秒 MOV R2,20 。R2 重新賦值 CJNE R0,0,Q4 。比較秒鐘是否為 0 CJNE R1,0,Q3 。比較分鐘是否為 0 SETB TR1 。開啟計(jì)數(shù)器中斷 1 Q3:MOV R0,60 。秒鐘重新賦 值 DEC R1 。減少 1分鐘 DEC R0 。減少 1秒鐘 LJMP NEXT Q4:DEC R0 。減少 1秒鐘 NEXT:MOV TH0,3CH 。T0 重新賦初值 MOV TL0,0B0H RETI TIME2:PUSH ACC 。音樂程序使用的計(jì)數(shù)器中斷 1 PUSH PSW CPL CPL MOV TL1,20H MOV TH1,21H POP PSW POP ACC RETI TIME1:MOV R4,250 。動(dòng)態(tài)顯示 1MS的延時(shí)子程序 Q5:NOP NOP DJNZ R4,Q5 MOV P2,00H 。關(guān)閉片選口 RET TAB:DB 0C0H,0F9H,0A4H,0B0H,99H,92H,82H,0F8H,80H,90H 。數(shù)碼管顯示斷碼表 TABLE1:DW 64260,64400,64580,64684,64777,64898,64968 。樂譜表 TABLE:DB 54H,64H,38H,44H,54H,18H,34H,44H,54H,64H,4CH 。音符斷碼表 DB 54H,64H,38H,44H,54H,28H,44H,14H,44H,54H,3CH DB 78H,68H,78H,38H,54H,24H,54H,64H,4CH DB 54H,64H,38H,44H,54H,28H,44H,14H,44H,54H,3CH DB 00H END ；結(jié)束 五、心得體會(huì) 經(jīng)過將近 5 個(gè)星期 的課程 學(xué)習(xí) ，簡(jiǎn)單帶有 LCD 顯示的音樂倒數(shù)計(jì)數(shù)器基本完成，系統(tǒng)基本功能基本實(shí)現(xiàn)，測(cè)試運(yùn)行也基本正常。該系統(tǒng)基本上完成了計(jì)數(shù) 鬧時(shí) 的功能。 當(dāng)然這個(gè)系統(tǒng)還存在許多有待完善的地方： ▲ 功能不夠完善，有一定瑕疵。 ▲ 在用單片機(jī)編寫音樂方面不夠熟練。 這次課程設(shè)計(jì)的時(shí)間雖然不算很長(zhǎng)，但使我對(duì)很多東西有了更深刻的認(rèn)識(shí)。平時(shí)在課堂上無法掌握的集體操作都有了一定的進(jìn)步。 總結(jié)如下： ● 查閱資料和閱讀相關(guān)文獻(xiàn)的重要性。 ● 向同學(xué)請(qǐng)教的重要性，團(tuán)結(jié)協(xié)作的重要性。 ● 勤動(dòng)手的重要性，自己動(dòng)手，豐衣足食！ 以前很多時(shí)候一遇到問題常常都會(huì)問同學(xué)，但是通過這次設(shè)計(jì)，我學(xué)會(huì)了自己努力解決困難，提高了自己解決問題的能力。 ● 對(duì)待任何事情都要有耐心和恒心，遇到問題要冷靜地思考，積極找出癥結(jié)所在，逐個(gè)解決。 ● 做事情要步步為營(yíng)，不能一蹴而就，就像焊接電路，只有確保每一部都真確，才有可能實(shí)現(xiàn)整個(gè)電路正常工作。 通過本次課程設(shè)計(jì)，我更深刻的認(rèn)識(shí)到了教學(xué)實(shí)踐在大學(xué)課程中的重要性，同時(shí)也發(fā)覺到了自己在學(xué)習(xí)方面存在的許多不足之 處，在以后的學(xué)習(xí)中我會(huì)努力改進(jìn)這些不足，不斷提高自己的動(dòng)手實(shí)踐能力。 六、參考文獻(xiàn) 單片機(jī)原理及接口技術(shù) 第三版（李朝青編） g an employment tribunal claim Employment tribunals sort out disagreements between employers and employees. You may need to make a claim to an employment tribunal if: ? you don39。t agree with the disciplinary action your employer has taken against you ? your employer dismisses you and you think that you have been dismissed unfairly. For more information about dismissal and unfair dismissal, see Dismissal. You can make a claim to an employment tribunal, even if you haven39。t appealed against the disciplinary action your employer has taken against you. However, if you win your case, the tribunal may reduce any pensation awarded to you as a result of your failure to appeal. Remember that in most cases you must make an application to an employment tribunal within three months of the date when the event you are plaining about happened. If your application is received after this time limit, the tribunal will not usually accept it. If you are worried about how the time limits apply to you, take advice from one of the anisations listed under Further help. Employment tribunals are less formal than some other courts, but it is still a legal process and you will need to give evidence under an oath or affirmation. Most people find making a claim to an employment tribunal challenging. If you are thinking about making a claim to an employment tribunal, you should get help straight away from one of the anisations listed u
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