基于FPGA的视频图像处理器的串行通信设计  

The design of serial communication on video image processor based on FPGA

作　　者：郑勇[1] 雷霖[1] 刘先志[2] 

机构地区：[1]电子科技大学自动化工程学院,四川成都610054 [2]西南技术物理研究所,四川成都610041

出　　处：《电子技术应用》2008年第5期59-61,共3页Application of Electronic Technique

摘　　要：提出了一种在FPGA上实现视频图像处理器分系统与系统之间的数据串行通信设计方法,采用UART串行数据传输协议,传输波特率可设置调整,采用视频场同步信号作为发送器发送控制信号,实现视频图像处理的实时性要求。串口采用双口RAM实现与视频图像处理部分的异步通信。设计中大量采用参数化设计,使用灵活、通用性强,可实现FPGA与一般串口通信系统通信。设计程序下载到FPGA芯片中,通信数据完全正确,电路工作稳定、可靠。This paper introduces a method to implement serial communication between video image processor and main system based on FPGA. The UART protocol is used in this design, and its baud rate is adjustable. The transmitter is controlled by the VSYN signal of the PAL rules, and the serial port is connected with the video image processor through dual_access RAM. The parametric design method makes the design flexible, and it can realize the communication between FPGA and general serial communication system easily. The design procedure was downloaded to a FPGA chip, .it worked well and the communication was totally correct.

关 键 词：FPGA VERILOG HDL UART 双口RAM 视频图像 

分 类 号：TN941.1[电子电信—信号与信息处理] TP334.7[电子电信—信息与通信工程]