基于cycloneⅲ系列ep3c25f324c8應(yīng)用quartusⅱ開(kāi)發(fā)多功能數(shù)字鐘eda論文(存儲(chǔ)版)
【正文】 有設(shè)計(jì)模計(jì)數(shù)器的實(shí)現(xiàn)完全一致。2． 鬧鈴界面顯示模塊其實(shí)該界面的顯示和基本的時(shí)鐘計(jì)數(shù)功能顯示是一樣的，下面直接給出該顯示電路圖。綜上所述，首先先用74160構(gòu)成一個(gè)模6計(jì)數(shù)器，來(lái)控制數(shù)據(jù)的選項(xiàng)和74138譯碼器，并且模6的計(jì)數(shù)器的時(shí)鐘脈沖必須比較大，這里選自4000Hz，然后將選通的數(shù)據(jù)進(jìn)行輸出值7447進(jìn)行譯碼，最后輸出至LED管子的段碼出進(jìn)行顯示。清零信號(hào)更是非常的簡(jiǎn)單，只要將每個(gè)計(jì)數(shù)器的清零端在模塊封裝時(shí)，引出來(lái)就行了，當(dāng)開(kāi)關(guān)為0時(shí)，計(jì)數(shù)器正常計(jì)數(shù)，當(dāng)開(kāi)關(guān)位于1時(shí)，就將開(kāi)關(guān)輸出并聯(lián)的所有計(jì)數(shù)器清零。4. 1Hz的設(shè)計(jì)將2Hz頻率用T觸發(fā)器2分頻就可直接獲得1Hz頻率的脈沖，并且最后獲得的1Hz的脈沖其實(shí)本身已經(jīng)是方波了，因?yàn)門觸發(fā)器是反轉(zhuǎn)觸發(fā)器，它的輸出結(jié)果肯定是方波，從而可以借助于T觸發(fā)器實(shí)現(xiàn)最終輸出結(jié)果是方波的要求，利用后面計(jì)數(shù)的準(zhǔn)確性。所以我們需要進(jìn)行最多48000000分頻，在48000000分頻的過(guò)程中進(jìn)行其他要求分頻數(shù)比較小的功能，這樣就能比較好的實(shí)現(xiàn)所有頻率的獲得。具體的工作過(guò)程如下：1． 有具體的分頻電路分的所需要的所有頻率。關(guān)鍵詞 多功能數(shù)字鐘 整點(diǎn)報(bào)時(shí) 鬧鐘 萬(wàn)年歷課程設(shè)計(jì)論文外文摘要Title The Design Of Multifunction Digital Clock Based on Cyclone Ⅲ Series EP3C25F324C8 Using Quartus Ⅱ AbstractThe experiment is based on Cyclone Ⅲ Series EP3C25F324C8 using Quartus Ⅱ to design the multifunction digital clock, considering hardware and software resources provided. With the help of the knowledge I got, the designed multifunction digital clock has all of the functions of a digital clock, including the hours, minutes, seconds timer function, and the system can also be keeped and cleared at any time. Moreover, the hour and minute can be adjusted to any wanted time and can be set to alarm at any time if you want. Most of all, the calendar function is also designed. This paper is mainly concerned about the detailed design procedure beginning with the basic principle of the circuit works and the hardware schematic drawing, finally finishing the simulation and debugging using Quartus Ⅱ software in SmartSOPC experimental platform. In addition, the details that may otherwise be fatal to the system design is also given during the course of circuit design process, which actually has a certain significance in later design. Keywords Multifunction digital clock. Hourly chime function. Alarm at any time. Calendar目 錄1 引言 ………………………………………………………………………………12 系統(tǒng)的總體設(shè)計(jì) …………………………………………………………………1 系統(tǒng)總體功能 …………………………………………………………………1 系統(tǒng)的工作原理 ………………………………………………………………23 系統(tǒng)的詳細(xì)設(shè)計(jì) …………………………………………………………………3 總體模塊介紹 …………………………………………………………………3 各個(gè)子模塊的詳細(xì)設(shè)計(jì)…………………………………………………………3 48MHz的分頻模塊……………………………………………………………4 基本數(shù)字鐘計(jì)數(shù)模塊…………………………………………………………6 快速校分較時(shí)清零與保持模塊………………………………………………7 整點(diǎn)報(bào)時(shí)模塊…………………………………………………………………8 LED動(dòng)態(tài)顯示模塊……………………………………………………………10 鬧鈴模塊 ……………………………………………………………………12 萬(wàn)年歷模塊 …………………………………………………………………15 開(kāi)關(guān)復(fù)用的邏輯控制 ………………………………………………………21 各子模塊調(diào)試及聯(lián)調(diào)設(shè)計(jì) ……………………………………………………23 各子模塊下載調(diào)試 …………………………………………………………23 各子模塊聯(lián)調(diào)思想設(shè)計(jì) ……………………………………………………254 系統(tǒng)設(shè)計(jì)及調(diào)試中的問(wèn)題………………………………………………………
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