| 嵌入式LED点阵汉字显示系统的驱动与编码 |
| |
| 引用本文： | 汪建,张丽娟.嵌入式LED点阵汉字显示系统的驱动与编码[J].微处理机,2007,28(1):119-121. |
| |
| 作者姓名： | 汪建 张丽娟 |
| |
| 作者单位： | 华中科技大学电气与电子工程学院,武汉,430074 |
| |
| 摘 要： | 论述了一种小型嵌入式LED点阵显示系统的驱动电路和汉字编码方法;驱动电路采用行驱动芯片74LS273和9013,列驱动芯片74LS374,结合寻址电路,对每个LED点动态驱动;显示程序采用行扫描,列顺序输出码值的方法,结合四段式汉字编码方法,无间断和延迟的在LED阵上输出汉字。整个系统试验后运行稳定美观,功耗低,且有很大的扩展空间。
|
| 关 键 词： | 嵌入式系统 LED点阵 汉字显示系统 8098单片机 |
| 文章编号： | 1002-2279（2007）01-0119-03 |
| 修稿时间： | 2005-09-08 |
Driving and Coding on Embedded LED Array Chinese-Character Displaying System |
| |
| WANG Jian,ZHANG Li-juan.Driving and Coding on Embedded LED Array Chinese-Character Displaying System[J].Microprocessors,2007,28(1):119-121. |
| |
| Authors: | WANG Jian ZHANG Li-juan |
| |
| Affiliation: | College of Electrical and Electronic Engineering ,Hnazhong University of Science and Technology, Wuhan 430074, China |
| |
| Abstract: | The driving circuit and a method of Chinese character coding in an embedded LED array display system are discussed in this paper.74LS273 and 9013 work as row driving chip,and 74LS374 works as line driving chip;they work with the address-seeking circuit,dynamically drive each LED dot;in display program,the approach of row-scanning,output code in line order,with 4-segment coding,display Chinese character in a LED array without pause and delay.The system runs steadily and aesthetically with low cost.It has room for extending functions. |
| |
| Keywords: | Embedded system LED array Chinese-Character Displaying System 8098 single-chip controller |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
