需要金幣： 1000 個金幣 |
資料包括：完整論文 |  |
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| 轉(zhuǎn)換比率：金額 X 10=金幣數(shù)量， 例100元=1000金幣 | 論文字?jǐn)?shù)：19731 |  | |
| 折扣與優(yōu)惠：團(tuán)購最低可5折優(yōu)惠 - 了解詳情 | 論文格式：Word格式(*.doc) |  |
摘要：單片機計數(shù)器，是集CPU ,RAM ,ROM ,定時，計數(shù)和多種接口于一體的微控制器。他體積小，成本低，功能強，廣泛應(yīng)用于智能產(chǎn)品和工業(yè)自動化上。而51系列單片機是各單片機中最為典型和最有代表性的一種。這次畢業(yè)設(shè)計通過對它的學(xué)習(xí)，應(yīng)用，從而達(dá)到學(xué)習(xí)、設(shè)計、開發(fā)軟、硬件的能力。 這次畢業(yè)設(shè)計中，采用AT89S52單片機+0.36寸4位共陽數(shù)碼管+5V繼電器構(gòu)成設(shè)計，加倒計時結(jié)束后聲光的提示。倒計時返回位0-99.9S，最后小數(shù)點計時10下為1秒?？梢匀我庠O(shè)置倒計時時間?？梢詮?開始計時。同時具有秒表和倒計時功能。4個按鍵功能分別作為開始計時/暫停計時，以及倒計時時間增加減少，以及清零重新開始按鈕。第一個按鍵是重新復(fù)位，重新開始計時;第二個按鍵是開始和暫停按鍵。計時的過程可以暫停，然后繼續(xù)進(jìn)行；第三個按鍵是時間增加按鍵，每次調(diào)整一秒；第四個按鍵是時間減少按鍵，每次調(diào)整一秒。 關(guān)鍵詞：AT89S52單片機；共陽數(shù)碼管；繼電器；秒表；倒計時
ABSTRACT：Counter SCM, is a set of CPU, RAM, ROM, timing, counting and multiple interfaces in one microcontroller. His small size, low cost, strong function, widely used in intelligent products and industrial automation. And 51 Series SCM is the most typical and the most representative one. The graduation design through the study, application, to achieve the study, design, development software, hardware capabilities. This graduation design, using 52 single-chip +0.36inch of a total of 4 digital tube Yang +5V relay design, with the countdown to the end after the acousto-optic tips. Countdown to return to0-99.9S, finally the decimal point10for a second time. Can set the countdown time. From 0begin timing. At the same time with stopwatch and countdown function. 4function keys respectively as the start timing / pause time, and the countdown time increase decrease, and reset the start button. The first button is reset, start time; the second keys is the beginning and the pause button. Timing of the process allows you to pause, and then continue; third key time increase,adjust each one second; fourth keys are keys to adjust each time is reduced, a second. Key words: AT89S52 Single Chip Microcomputer；Total Yang Digital Tube；Relay；Stopwatch；Countdown
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