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畢業(yè)設(shè)計(jì)-基于單片機(jī)的智能電風(fēng)扇控制系統(tǒng)設(shè)計(jì)-文庫(kù)吧資料

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【正文】 or damagesbased agreement. In England and Wales, your solicitor can39。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 organisations listed underappealedDismissal.You can make a claim to an employment tribunal, even if you haven39。t agree with the disciplinary action your employer has taken against you 參考文獻(xiàn)[1] [1] ,2006,2 [2] 黃朝民,肖明清,2006,12 [3] ,2004,10g an employment tribunal claiEmployment tribunals sort out disagreements between employers and employees.You may need to make a claim to an employment tribunal if:功能上的缺憾是對(duì)于兩個(gè)檔之間的臨界溫度處理不好,并且檔位太少。本系統(tǒng)在當(dāng)今提倡人性化設(shè)計(jì)和健康產(chǎn)品的環(huán)境下具有非常好的市場(chǎng)前景。 2)系統(tǒng)成本低廉,操作非常簡(jiǎn)單,隨時(shí)可以根據(jù)軟件編寫(xiě)新的功能加入產(chǎn)品。 系統(tǒng)以單片機(jī)AT89C51為核心部件,單片機(jī)系統(tǒng)完成對(duì)環(huán)境溫度信號(hào)的采集、處理、顯示等功能。(設(shè)1秒鐘通過(guò)波形數(shù)N=100)中斷流程圖如圖32所示: 圖32 電機(jī)控制模塊中斷響應(yīng)流程圖 主要程序外中斷INT0的部分中斷響應(yīng)程序如下:ORG 0003HINTD0:PUSH ACCPUSH PSWPUSH DPHPUSH DPLSETB MOV A, 5FHJZ TING1 DEC A MOV 5FH,ALJMP FAN2TING1: …FAN2:MOV A, 5BHJZ TING2 DEC A MOV 5BH, ALJMP ZONGTING2:…ZONG:MOV A, 59HJZ KAIDEC AMOV 59H, ALJMP EXITKAI:CLR JB , KAI2KAI2:MOV A, 66HJZ EXIT1EXIT1:MOV 5FH,5AHMOV 5BH,66HMOV 59H,100EXIT:POP DPLPOP DPHPOP PSWPOP ACCRETI結(jié) 束 語(yǔ)首先,通過(guò)這次應(yīng)用系統(tǒng)設(shè)計(jì),在很大程度上提高了自己的獨(dú)立思考能力和單片機(jī)的專(zhuān)業(yè)知識(shí),也深刻了解寫(xiě)一篇應(yīng)用系統(tǒng)的步驟和格式,有過(guò)這樣的一次訓(xùn)練,相信在接下來(lái)的日子我們都會(huì)了,而且會(huì)做得更好。主回路控制執(zhí)行程序的任務(wù)是初始化數(shù)據(jù)存儲(chǔ)單元,確定電機(jī)工作參數(shù) /,并將其換算成“有效過(guò)零脈沖”的個(gè)數(shù);確定中斷優(yōu)先級(jí)、開(kāi)中斷,為了保證正弦波的完整,工頻過(guò)零同步中斷INT0確定為高一級(jí)的中斷源。這樣就可以按照控制處理得到的控制量的要求,實(shí)現(xiàn)可控硅的過(guò)零控制,從而達(dá)到按控制量控制的效果,實(shí)現(xiàn)速度可調(diào)。DS18B20芯片功能命令表如下:表2 DS18B20功能命令表命令 功能描述 命令代碼CONVERT 開(kāi)始溫度轉(zhuǎn)換 44HREAD SCRATCHPAD 讀溫度寄存器(共9字節(jié)) BEH READ ROM 讀DS18B20序列號(hào) 33HWRITE SCRATCHPAD 將警報(bào)溫度值寫(xiě)如暫存器第3字節(jié) 4EH MATCH ROM 匹配ROM 55H SEARCH ROM 搜索ROM F0H ALARM SEARCH 警報(bào)搜索 ECHSKIP ROM 跳過(guò)讀序列號(hào)的操作 CCHREAD POWER SUPPLY 讀電源供電方式:0為寄生電源,1為外電源 B4H主要程序如下:…MAIN: ;初始化LCALL RST_DS18B20LCALL GET_TEMPERMOV A,20HMOV C,08HRRC AMOV C,09HRRC AMOV C,10HRRC AMOV C,11HRRC AMOV 20H,ALCALL DISPLAYAJMPMAINRST_DS18B20:SETB P3. 7NOPCLR P3. 7MOV R1, 3RST1:MOV R0, 110DJNZ R0, $DJNZ R1,RST1SETB P3. 7NOPNOPMOV R0, 25HRST2:JNB P3. 7,RST3DJNZ R0,RST2LJMP RST4RST3: SETB FLAGLJMP RST5RST4:CLR FLAGLJMP RST7RST5:MOV R0, 115RST6:DJNZ R0, $RST7: SETB P3. 7RETWR_DS18B20: ;寫(xiě)數(shù)據(jù)子程序MOV R2, 8CLR CWR1: CLR P3. 7MOV R3, 6DJNZ R3, $RRC AMOV P3. 7,CMOV R3, 25DJNZ R3, $SETB P3. 7NOPDJNZ R2,WR1SETB P3. 7RETRD_DS18B20: ;讀數(shù)據(jù)子程序MOV R4, 2MOV R1, 20HREAD1:MOV R2, 8READ2: CLR CSETB P3. 7NOPNOPCL
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