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畢業(yè)設(shè)計(jì)-基于vhdl的數(shù)字溫度計(jì)的設(shè)計(jì)-全文預(yù)覽

  

【正文】 細(xì)設(shè)計(jì)說明書”中有對(duì)該模塊的六大單元功能實(shí)現(xiàn)的具體分析。尤其是對(duì)基于 WEB 的學(xué)籍系統(tǒng)的開發(fā)更是眾所期待的。 7 緒論 對(duì)于日益龐大的學(xué)籍信息管理系統(tǒng),如果還是才同傳統(tǒng)的人工管理方式的話,不僅對(duì)管理的老師來說,是項(xiàng)沉重的負(fù)擔(dān),同時(shí)對(duì)信息存儲(chǔ)空間和信息的使用者來說,也會(huì)不堪重負(fù)。 預(yù)期結(jié)果:測(cè)量值數(shù)據(jù)用 3 位數(shù)碼管顯示,其中有一位小數(shù),小數(shù)點(diǎn)能自動(dòng)移動(dòng),小數(shù)點(diǎn)左邊 一位以上的零自動(dòng)熄滅。 研究方法:分析設(shè)計(jì)任務(wù),提出多種設(shè)計(jì)方案,根據(jù)當(dāng)時(shí)的制作條件,選擇其中一種方案繪制原理框圖和設(shè)計(jì)流程。 范圍:一個(gè)具有 0~100℃的數(shù)字溫度表。 對(duì)制作的電路做功能測(cè)試,分析各項(xiàng)技術(shù)指標(biāo),對(duì) VHDL 描述做功能仿真。 具有被測(cè)溫度上、下限值時(shí),用“嘀 — 嘟”音響發(fā)出報(bào)警信號(hào)。 測(cè)量誤差小于 ℃。 安裝調(diào)試硬件電路,制作以 CPLD 為基礎(chǔ)的專用集成電路芯片 ASIC。 關(guān)鍵詞 : 數(shù)字溫度表 VHDL CPLD 3 畢業(yè)設(shè)計(jì)(論文)外文摘要 Title: Based on VHDL Design of Digital Thermometer Abstract: Designed by a 0 to 100 ℃ digital thermometer, measurement data with three digital display, including a small number, a decimal point can automatically move the left side of a decimal point above the zero automatically extinguished. Measurement error is less than ℃ . With the measured temperature, the lower limit, as required Du sound a warning signal. Analysis and design tasks, to a variety of design options, according to the prevailing conditions of the production, choose Block diagram of a programme mapping and design process. All parts of circuit design module, the preparation of VHDL program, ponents of parameters to determine the type and number of ponents, the ponents to the list. Installed and tested hardware circuit, producing a CPLDbased ASIC chip ASIC. Circuit done on the production of functional testing, analysis of the technical indicators, the VHDL description do functional simulation. Aggregate design information, including schematics print finishing, the waveform design reports. Produce their own demonstration and validation of the overall circuit hardware devices. Keywords : Digital thermometer VHDL CPLD 4 5 目錄 1 引言?????????????????????????????? 1 2 元器件列表??????????????????????????? 2 AD590 器件簡(jiǎn)介????????????????????????? 3 OP07 器件簡(jiǎn)介????????????????????????? 4 MC1403 器件簡(jiǎn)介????????????????????????? 5 ADC0809 器件簡(jiǎn)介??? ????????????????????? 7 3 硬件部分??????????????????????????? 11 系統(tǒng)原理框圖????????????????????????? 11 傳感器電路?????????????????????????? 12 A/D 變換電路?????????????????? ??????? 14 4 軟件部分?????????????????????? ????? 17 基本程序 ?????????????????????? ????? 17 數(shù)字量到 溫度量的轉(zhuǎn)換 ???????????????? ????? 19 結(jié)論 ?????????????????????????????? 21 致謝 ?????????????????????????????? 21 參考文獻(xiàn)????????????????????????????? 22 6 1 引言 研究工作的目的:設(shè)計(jì)制作數(shù)字溫度表。 研究設(shè)想:具有被測(cè)溫度上、下限值時(shí),用“嘀 — 嘟”音響發(fā)出報(bào)警信號(hào)。對(duì)制作的電路做功能測(cè)試,分析各項(xiàng)技術(shù)指標(biāo),對(duì) VHDL 描述做功能仿真。交驗(yàn)并演示自己制作的硬
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