摘要:随着计算机的不断发展,单片机应用已经渗透到了生活的各个方面,因此也推动了显示技术的不断发展,在那些大型商场和建筑物的墙壁上,地铁、车站、码头、公交车上,以及众多的电子产品上,我们都可以看见LCD的身影,显示着色彩丰富的图片和文字,以及越来越多的地方需要LCD显示来大展拳脚。本文主要研究的是基于单片机控制LCD屏幕显示彩色图片,硬件电路的控制核心是HOT51单片机,LCD显示部分是由基于控制器为ST7735R的TFT144模块构成,实现了在并行数据传输方式下控制TFT模块显示彩色图片。文章首先是对课题的背景、单片机和TFTLCD进行了简单的介绍,以及本设计的研究意义、目标和遇到的问题、所解决问题的方法;然后是着重介绍了本次设计所用到的HOT51增强型单片机开发板和TFT液晶显示模块;之后紧接着的是系统硬件的设计,显示映射、操作时序和控制方法;最后提出的是系统软件设计方案,包括整个TFT软件系统结构图和程序实现流程图,以达到设计目的,在LCD上显示彩色图片。22053
关键词:单片机、TFTLCD、彩色图片、控制器ST7735R。
Color image display system design
Abstract:
With the continuous development of the computer, microcomputer application has penetrated into all aspects of life, and therefore promote the continuous development of display technology, in shopping malls and on the walls of those buildings, subways, railway stations, docks, on the bus, as well as many on electronic products, we can see the figure of LCD displays with colorful pictures and text, as well as a growing number of areas that need to flex its muscles in the LCD display. In this paper, the study is based on SCM control LCD screen display control core color pictures, the hardware circuit is HOT51 microcontroller, LCD display controller is based in part by the TFT144 ST7735R modules to achieve parallel data transmission under control TFT display module color pictures. Firstly, the background of the subject, SCM and TFTLCD a simple introduction, as well as the significance of the design goals and problems, the solution to the problem; then highlights of this enhanced design used HOT51 MCU development board and TFT LCD module; immediately after the system hardware design, display maps, operation timing and control methods; Finally, the system software design, including the entire TFT software system structure and process flow chart in order to achieve the design objective color pictures on the LCD display.
KeyWords:MCU、TFTLCD、Color pictures、ST7735R controller.
目录
摘要
Abstract
第1章 绪论 1
1.1 课题背景 1
1.2 单片机 2
1.3 TFT-LCD的相关概念 2
1.3.1 液晶简介 2
1.3.2 TFT-LCD 3
1.3.3 TFT-LCD构造和原理 3
1.4 LCD驱动 6
1.4.1 LCD的驱动原理 6
1.4.2 LCD的驱动方式 6
1.5 本课题的研究思路 7
1.5.1 研究意义 7
1.5.2 研究目标 8
1.5.3 研究思路 8
1.5.4 研究难点 8
1.5.5 拟解决的关键问题 8
1.6 论文主要工作 8
第2章 HOT51与TFT模块 10
2.1 HOT51单片机 10
2.2 芯片管脚说明 12
2.3 TFT模块 14
第3章 系统硬件设计 19
3.1 显示映射 19
3.2 操作时序 20
3.3 模块控制 23
3.4 74HC245 24
3.5 电路连接 26
第4章 软件设计 27 单片机和TFTLCD彩色图片显示系统设计+源程序:http://www.youerw.com/tongxin/lunwen_14520.html