摘要
阐述了一种主要用于检测视频同步信号的基于ISA总线的视频发生器模块的设计过程。本硬件电路板还可以通过PC机对同步的选择与图像的发送进行控制,并具有故障检测的功能。其中的视频同步信号生成电路以及视频图像数据地址生成电路采用了PLD器件,这样就可以很方便地去改变视频制式,也便于调试。
In this thesis,a kind of ISA-based TV video generator is presented,which can be used to test the video synchronization given from outside.The selection of the synchronal mode and the transmission of the video can be controlled by PC.The module also has the function of failure detected.A PLD is used to produce the video synchronization signal and the logical address of the video image.So it is very convenient to change the forms of the video and easy to debug
