C語(yǔ)言在AVR單片機(jī)控制的微型熱敏打印機(jī)中的應(yīng)用

論文字?jǐn)?shù):9282,頁(yè)數(shù):35

論文題目：C語(yǔ)言在AVR單片機(jī)控制的微型熱敏打印機(jī)中的應(yīng)用
摘　要
 隨著人們生活需求的不斷提高和市場(chǎng)細(xì)分的加速，打印機(jī)小型化成為發(fā)展趨勢(shì)。微型打印機(jī)按照打印方式分為微型針式打印機(jī)、微型熱敏打印機(jī)和微型熱轉(zhuǎn)印打印機(jī)等。而微型熱敏打印機(jī)具有體積小、重量輕、噪音低、高速度、高清晰、連接方便、功能完備等優(yōu)點(diǎn)，廣泛應(yīng)用于小票據(jù)打印、POS機(jī)、汽車行駛記錄儀、醫(yī)療儀器、工業(yè)控制以及其他各種儀器儀表打印輸出的最理想匹配產(chǎn)品。
 由于單片機(jī)芯片的微小體積，極低的成本和面向控制的設(shè)計(jì)，使得它作為智能控制的核心器件被廣泛地應(yīng)用于工業(yè)控制、智能儀器儀表、家用電器、電子通信產(chǎn)品等各個(gè)領(lǐng)域中的電子設(shè)備和電子產(chǎn)品中。由單片機(jī)為核心構(gòu)成的單片嵌入式系統(tǒng)已成為現(xiàn)代電子系統(tǒng)中最重要的組成部分。
 作為高級(jí)編程語(yǔ)言的C語(yǔ)言其形式類似自然語(yǔ)言和數(shù)學(xué)公式，具有面向問(wèn)題或過(guò)程的特點(diǎn)，其在大的應(yīng)用當(dāng)中代碼效率高、結(jié)構(gòu)性、可讀性、可移植、易維護(hù)的特點(diǎn)已成為當(dāng)前的發(fā)展趨勢(shì)。
 本次設(shè)計(jì)的目的就是要建立一個(gè)由C語(yǔ)言編程的基于AVR單片機(jī)控制的微型熱敏打印機(jī)的獨(dú)立系統(tǒng)。系統(tǒng)采用LTP1245熱敏打印機(jī)芯為對(duì)象，由AVR單片機(jī)ATMEGA16做為主控制芯片，F(xiàn)AN8200做為熱敏打印機(jī)走紙系統(tǒng)步進(jìn)電機(jī)驅(qū)動(dòng)芯片，通過(guò)串口與上位機(jī)進(jìn)行通訊。軟件設(shè)計(jì)包括了控制部分、走紙電機(jī)驅(qū)動(dòng)部分及檢測(cè)部分，給出了軟件系統(tǒng)的控制流程。
 
 關(guān) 鍵 詞：AVR單片機(jī)；熱敏打印機(jī)；C語(yǔ)言
 
 論文類型：應(yīng)用研究

Title: C language in the AVR Microcontroller Application of micro-thermal printer
ABSTRACT
 With the increasing demand of people's lives and the accelerated market segmentation, the printer miniaturization becomes deveolping trend.  The miniature printer for printing method in accordance with the impact printer, mini thermal printer and the micro thermal transfer printer, etc.  The mini thermal printer has a small size, light weight, low noise, high speed, high-definition, easy connection, complete functions, etc., are widely used in small ticket printing, POS, vehicle traveling data recorder, medical equipment, industrial control and other various instruments printout of the most Ideal match product.
 Small size of the single chip, low cost and for control of the design, making it as the core of intelligent control devices are widely used in industrial control, smart instrumentation, home appliances, electronic communication products, electronics and other fields Equipment and electronic products. Posed by the microcontroller chip as the core of embedded systems has become a modern electronic system of the most important component.
As a high-level programming languages ​​like C language in the form of natural language and mathematical formulas, problem-oriented or process with the characteristics of the applications in large high code efficiency, structured, readable, portable, easy maintenance features have become the current trend of development.

 
 The purpose of this design is to establish a C language programming AVR microcontroller based mini thermal printer independent system. The system uses LTP1245 thermal printer, the AVR Atmega16 microcontroller as the control chip, FAN8200 as the driver chip of the thermal printer paper feed stepper motor, through the serial port to communicate with the host computer. The software design includes a control part, a motor drive part and testing part, at the same time the control flow of the software system is given.

Keywords:  AVR microcontroller; thermal printer; C language

TYPE OF THESIS:  Applied Research
 

目  錄
1 緒論 1
1.1 論文研究的背景 1
1.2 相關(guān)研究和本論文的創(chuàng)新 1
1.3 本論文的內(nèi)容安排 2
2 微型熱敏打印機(jī)的原理及選取 3
2.1 微型熱敏打印機(jī)原理 3
2.2 微型熱敏打印機(jī)的選取 3
2.3 LTP1245微型熱敏打印機(jī)芯的工作原理 3
2.3.1 走紙單元 4
2.3.2 熱敏頭單元 5
3 系統(tǒng)硬件設(shè)計(jì) 9
3.1 系統(tǒng)整體結(jié)構(gòu)框圖 9
3.2 主控制電路 9
3.3 走紙電機(jī)驅(qū)動(dòng)電路 11
3.4 檢測(cè)保護(hù)電路 14
4 系統(tǒng)軟件設(shè)計(jì) 17
4.1 系統(tǒng)整體工作流程 17
4.2 數(shù)據(jù)加載及打印工作流程 17
4.3 走紙電機(jī)工作流程 21
4.4 字庫(kù)的建立 23
5 結(jié)論與展望 25
致    謝 27
參考文獻(xiàn) 29