基于CPLD的LED显示屏控制技术研究(II)软件程序设计与分析  

Research of Control Technology for LED Screen Based On CPLD(II) Analysis of LED Software Program

作　　者：邢建平[1] 张军[1] 张德敬[2] 

机构地区：[1]北京航空航天大学电子与信息学院,北京100083 [2]山东大学现代通信技术研究所,济南250100

出　　处：《电子器件》2006年第3期937-940,980,共5页Chinese Journal of Electron Devices

基　　金：山东省电子发展专项基金资助(2003118);济南市科技明星计划资助(200460103)

摘　　要：在已经使用CPLD实现了串行数据接收、存储以及所接收信息的显示硬件电路设计的基础上,给出了系统软件功能分析、设计过程,以VHDL硬件描述语言开发了串口通信,存储器控制和LED屏扫描程序等相应软件。对软件设计与实现过程中遇到的问题和解决方法进行了详细讨论。结果表明:仿真过程是软件分析验证为基础,该软件设计可下载到硬件中,由微计算机控制显示内容,并能脱机运行,在掉电的情况下能保存所显示的信息,开机即可以正常显示。The corresponding software design based on the hard wares, which includes the serial data receiver and the data saver and the information display, was made. Also by using the VHDL language , the program of UART, Memorizer Control and I.ED Screen Scan were developed. The problems encountered in testing and their solutions for the software design are discussed. The results include： the emulation procedure is very important for EDA; the microcomputer can control the information of the screen; the platform can work well without computer; the memorizer can keep saving the shown data when power down.

关 键 词：LED屏 VHDL 通信 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]