基于TFT-LCD的指针式时钟毕业设计.doc

PAGE \* MERGEFORMAT 1基于TFT-LCD的指针式时钟设计摘 要采用单片机与时钟芯片DS1302设计电子时钟时，通常是数字显示，这是由于选用数码管和1602等器件的显示能力有限。而本次研究所选用TX05D99VM1AAA模组，该模组实际上是一款手机液晶屏，轻松达到指针式时钟显示要求，在实现精美的指针式时钟的同时，显示年月日等重要信息。本论文介绍一种基于ATmega128单片机与TFT-LCD显示屏实现指针式时钟显示的方案。设计介绍了AVR单片机与时钟芯片DS1302和TFT-LCD液晶的接口电路，DS1302写入、读取、驱动以及TFT-LCD相关函数及初始化等的C语言程序。并简要介绍了AVR单片机、时钟芯片DS1302、TFT液晶，以及AVR单片机的开发工具AVR Studio、 ICCAVR和AVRGCC。本设计集时间、时期、星期于一身，具有读取方便、显示直观、功能多样、电路简洁等优点。关键词 TFT-LCD；DMAVR-128；DS1302；指针式时钟（小4号宋体，要求3-5个词） TFT-LCD-based Analog clock designAbstract.Using a single-chip clock chip DS1302 design electronic clock, digital display, which is due to the limited capacity of the display of the selected digital tube and 1602 devices. The TX05D99VM1AAA module, which is actually a mobile phone LCD screen, is easy to reach the pointer style clock display requirements. It also shows the beautiful analog clock and date and other important information. This paper introduces the Analog clock display program based on the ATmega128 MCU with TFT-LCD display. The design of the AVR microcontroller and the clock chip DS1302 and TFT-LCD liquid crystal interface circuit, DS1302 write, read, drive and TFT-LCD-related functions, and initialization of C language program. And briefly introduced the AVR microcontroller, the clock chip DS1302, TFT LCD, AVR microcontroller development tools the AVR Studio, ICCAVR, and AVRGCC,. Design set time period, a week in one, with easy to read display and intuitive, versatile, simple circuit.Keywords TFT-LCD；DMAVR-128；DS1302；Analog clock 目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc325651885 第1章 绪论 PAGEREF _Toc325651885 \h 1 HYPERLINK \l _Toc325651886 1.1 引言 PAGEREF _Toc325651886 \h 1 HYPERLINK \l _Toc325651887 1.2 选题背景 PAGEREF _Toc325651887 \h 1 HYPERLINK \l _Toc325651888 第2章 指针式时钟显示设计硬件环境简介 PAGEREF _Toc325651888 \h 2 HYPERLINK \l _Toc325651889 2.1 DMAVR-128开发板结构图 PAGEREF _Toc325651889 \h 2 HYPERLINK \l _Toc325651890 2.2 ATmega128简介 PAGEREF _Toc325651890 \h 2 HYPERLINK \l _Toc325651891 2.3 系统设计模块 PA