基于FPGA的HDTV显示器测试图案发生器

Test Picture Generator for HDTV Monitor Based on FPGA

本文提出了一种基于FPGA的HDTV显示器测试信号发生器的方案。该方案以Altera公司的FLEX10k50作为核心器件,配以高速视频DACTHS4134完成到数字视频到模拟视频信号的转换。FPGA内部划分为六个功能模块,分别完成时钟产生、像素计数、场信号产生、行计数与分类、同步/消隐控制信号产生、有效测试图案产生。目前已经实现了满足四种HDTV视频标准的中国电影电视行业推荐的13种测试图案。

In this paper, a solution based on FPGA to test signal generator for HDTV monitor is presented. FLEX10k50 from Ahera is selected as the core component in the solution, accompanied with high speed video DAC THS814, in which digital video is converted into analog video signal. FPGA is divided into 6 function modules, and it completed clock generation, pixel counter, field signal generation, line counter and group, sync/blank control signal generation, active test pictures generation respectively. At present, according to 4 HDTV video standards： SMPTE274M, SMPTE293M, SMPTE296M,and the Draft of China HDTV video format, 13 kinds of testing signals recommanded by the Movie and Television Industry, have been implemented in China.