基于FPGA的多路视频通道控制  

Design of multiple video channels control based on FPGA

作　　者：曾晶[1] 唐湘成[1] 刘怡[1] 

机构地区：[1]西南技术物理研究所

出　　处：《电子设计工程》2010年第4期91-93,共3页Electronic Design Engineering

摘　　要：根据织布机告警系统的需求,提出一种开关设计思想,阐述开关设计过程中遇到的问题以及解决方法。首先在FPGA中设计一个开关控制信号,利用这个信号结合双口RAM中的编码数据识别两个拨动开关状态,从而达到控制多路视频通道的目的,使本告警系统更方便的应用于实际工业中。介绍整个控制系统的工作原理,给出硬件结构图和软件设计过程,然后利用QuartusⅡ中的SignalTapⅡLogic Analyzer工具对控制信号进行实时采样分析,最后在织布机告警系统中成功实现视频通道控制功能。According to the needs of loom warning system, this paper gave a switch design ideas, expatiated on the questions in the design and told us how to deal with the questions. Firstly, it designed a special switch control signal in FPGA. Therefore, the dual-port RAM with this control signal could identify two toggle switches state and control the multiple video channels to make the system more convenient to apply to the actual industry. This article described the working principle of the whole control system and gave the hardware and software flow chart. The control signals were sampled and analyzed by Signal Tap Ⅱ Logic Analyzer in Quartus Ⅱ. Finally, video channel control function is carried out in the loom warning system successfully.

关 键 词：多路视频通道 开关控制 FPGA 双口RAM 

分 类 号：TP911.72[自动化与计算机技术]