目 录
摘 要...................................................I
Abstract..................................................II
目 录.................................................III
1.绪论.....................................................3
1.1 课题研究背景...........................................3
1.2 LED 发展现状和发展趋势.................................3
1.3 研究本课题的内容及意义.................................3
2. LED 显示装置总体设计....................................3
2.1 系统设计要求...........................................3
2.2 系统设计方案...........................................3
2.2.1 系统设计思路.........................................3
2.2.2 系统的模块分析.......................................3
3. LED 显示装置硬件设计....................................3
3.1 系统的硬件组成.........................................3
3.2 系统主要模块电路设计...................................3
3.2.1 STC89C51 单片机主控模块..............................3
3.2.2 74HC138 译码模块.....................................3
3.2.3 74HC595 模块.........................................3
3.2.4 DS18B20 模块.........................................3
3.2.5 其他模块.............................................3
4. LED 显示系统软件设计....................................3
4.1 系统软件总体设计.......................................3
