基于FPGA实现的计算机与HDTV显示器测试信号发生器  

Test Picture Generator for Display of Computer and HDTV Based on FPGA

作　　者：国澄明[1] 樊晓川[1] 

机构地区：[1]天津大学电子信息工程学院,天津300072

出　　处：《天津大学学报（自然科学与工程技术版）》2005年第1期90-94,共5页Journal of Tianjin University：Science and Technology

摘　　要：为产生满足 14种计算机并兼容 4种高清晰度电视 (HDTV)视频标准的 13种测试图案信号,研究开发了计算机与高清晰度电视显示器测试信号发生器.采用现场可编程门阵列(FPGA)完成测试图案数据存储、各种视频标准时序产生及系统控制信号产生等核心功能.利用FPGA的现场可编程功能,采用多个EPROM存储FPGA配置.采用频率发生器技术为多种视频标准提供时钟信号.实践表明,以上方法可行,且成本降低,尺寸从 15cm×21. 5cm减小到11cm×14cm.This paper introduces a great improvement that was put on the last generation of test picture generator for HDTV display. In addition to four HDTV video standards, this instrument can also provide thirteen kinds of test signals recommended from fourteen computer video standards.The kernel functions such as test signal storage,video timing signal generation and systems control signal generation are realized by field programmable gate array(FPGA). Moreover, many EPROM are used to store FPGA configure. And a frequence-generator is designed. Due to these changes, the reliability and function of the system are enhanced and the cost is cut. The size decreases from 15 cm×(21.5) cm to 11 cm×14 cm.

关 键 词：显示器测试信号发生器 现场可编程门阵列 频率发生器 

分 类 号：TN948.57[电子电信—信号与信息处理]