【正文】
專 業(yè) 電子信息工程 學生姓名 學 號 指導教師 職 稱 副教授 二O一四 年 五 月 二十 日 目 錄 1 緒 論 ......................................................2 ...........................................................2 ...........................................................2 .............................................................2 2 系統(tǒng)設計 ....................................................2 ...................................................................2 ...............................................................3 3 系統(tǒng)硬件設計 ................................................3 .................................................................3 ATmega16 單片機 ......................................................4 ATmega16 各管腳功能及片內(nèi)性能 ........................................4 PC通信 ..............................................................5 ...................................................6 ,復位電路部分 ...................................................8 .............................................................8 .............................................................9 ............................................................10 PC通信電路 ...............................................................11 ............................................................11 LED顯示燈 ................................................................12 按鍵部分 .................................................................13 74HC20....................................................................14 DSI302 時鐘部分 ...........................................................15 4Protel99se軟件使用 .........................................16 Protel99se 元件庫制作 .....................................................17 Protel99se 原理圖制作 .....................................................17 Protel99se 元件庫封裝 .....................................................19 Protel99se PCB 版圖繪制 ...................................................19 5 總 結 .....................................................21 參 考文獻 ....................................................22 謝 詞 ......................................................23 多通道電壓檢測系統(tǒng)的硬件設計 南京信息工程大學濱江學院,江蘇 南京 210044 摘要: 本設計主要采用 ATmega16 單片機來實現(xiàn)一個多通道電壓檢測系統(tǒng)的設計,主要是通過ATmega16單片機內(nèi)的 A/D轉換模塊功 能來實現(xiàn)能夠對輸入多路 0到 5之間的模擬電壓進行檢測并且通過 LED數(shù)碼管進行顯示其相應的通道數(shù)及其相應的電壓值,最終通過喇叭來實現(xiàn)過電壓的報警功能,最后通過鍵盤輸入上下界來調(diào)節(jié)電壓值以便限制報警,從而達到電壓的檢測效果。 關鍵詞: ATmega16單片機;多通道;電壓;檢測 Multichannel voltage detection system hardware design Tian zuo chi Binjiang University of information Science and Technology, Jiangsu nanjing 210044,China Abstract: This design mainly ATmega16 single chip microputer is used to realize A multichannel voltage detection system design, mainly through the ATmega16 single chip microputer in the A/D conversion module function to implement the multiplexing 0 to 5 to be able to input analog voltage between testing and through the LED digital tube display the corresponding channel number and their corresponding voltage value, ultimately to achieve the function of overvoltage alarm over the loudspeaker, the upper and lower bounds finally through the keyboard input to regulate voltage value in order to limit alarm, so as to achieve the detection effect of voltage. Key words: ATmega16 microcontroller。 Voltage。 ,顯示不能閃爍 4鍵控制,靈敏度高,能防抖;具備電壓限制報警,能夠通過鍵盤輸入上下界;可以定時采樣,也可以鍵控采樣,循環(huán)采樣 0~ 5V 最大輸出信號 5V ,保存數(shù)字節(jié)不少于 1024B 該項目提出了如何實