【正文】
1 常州機(jī)電職業(yè)技術(shù)學(xué)院 畢業(yè)設(shè)計(jì)(論文) 作 者: 學(xué) 號: 0531320 05310007 系 部: 電氣工程系 專 業(yè): 應(yīng)用電子專業(yè) 題 目: 基于 VHDL的數(shù)字溫度計(jì)的設(shè)計(jì) 指導(dǎo)者: 顏 云華 評閱者: 2021 年 10 月 2 畢業(yè)設(shè)計(jì)(論文)中文摘要 設(shè)計(jì)制作一個具有 0~100℃的數(shù)字溫度表,測量值數(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)能自動移動,小數(shù)點(diǎn)左邊一位以上的零自動熄滅。 測量誤差小于 ℃。 具有被測溫度上、下限值時,用“嘀 — 嘟”音響發(fā)出報(bào)警信號。 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。 設(shè)計(jì)出各部分電路模塊,編寫 VHDL 程序,計(jì)算元器件參數(shù),確定元器件型號和數(shù)量 ,提出元器件清單。 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。 對制作的電路做功能測試,分析各項(xiàng)技術(shù)指標(biāo),對 VHDL 描述做功能仿真。 總結(jié)設(shè)計(jì)資料,整理打印包括原理圖、工作波形的設(shè)計(jì)報(bào)告。交驗(yàn)并演示自己制作的硬件電路整體裝置。 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 器件簡介????????????????????????? 3 OP07 器件簡介????????????????????????? 4 MC1403 器件簡介????????????????????????? 5 ADC0809 器件簡介??? ????????????????????? 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 ????????