基于单片FPGA的可扩展DVI发送器

介绍了当前主流的DVI数字视频协议,特别分析了TMDS的链路结构、信号特性和编码算法.针对目前DVI设计中的不足,给出了一个符合DVI1.0规范的基于单片FPGA的可扩展视频发送器的实现方法,具备某些传统方案无法完成的特性.它充分利用FPGA领域的最新技术,给出了一种基于Xilinx SPARTAN-3A DDR I/O的输出并串转换技术实现方法,克服了FPGA的最高时钟频率限制,极大地提高了运算速度和减少了对系统硬件的需求.

Expandable Single-FPGA-Based DVI Transmitter

The mainstream protocol of digital visual interface(DVI)especially in TMDS link structure,signal character and encoding algorithm were introduced.An expandable FPGA-based DVI transmitter system according to DVI 1.0 specification to overcome the shortcomings of current DVI designs was presented,its features in some respects that traditional scheme can not reach.The state-of-the-art technologies of FPGA field were adopted in the design and the realization method of an optimized serializer derived from Xilinx SPARTAN-3A DDR I/O was presented.It overcomes the maximum clock frequency limitation,greatly improves the computation speed and reduces the system hardware requirements.