基于FPGA的LVDS多通道视频流自动校准设计与实现  

Design and implementation of automatic calibration with LVDS multi-channel video stream based on FPGA

作　　者：陈宁 谯谊 雷伟林 杜柏峰 赵阳生 Chen Ning;Qiao Yi;Lei Weilin;Du Baifeng;Zhao Yangsheng(Leyard Group,Intelligent Display Research Institute,Beijing 100089,China;School of Information Science and Engineering/School of Artificial Intelligence,China University of Petroleum(Beijing),Beijing 102249,China)

机构地区：[1]利亚德集团智能显示研究院,北京100089 [2]中国石油大学(北京)信息科学与工程学院/人工智能学院,北京102249

出　　处：《电子技术应用》2024年第6期84-88,共5页Application of Electronic Technique

摘　　要：基于Micro-LED产品系列,设计了一种基于FPGA的LVDS自动校准多通道视频流传输系统。系统平台外挂GSV2011解码芯片,把解码得到的2K@120Hz/4K@60Hz视频流信号,通过自定义封装为80bit数据推送到LYDNT27001恒流源显示驱动芯片。系统中视频流数据传输涉及多级FPGA芯片数据传输,使用LVDS低压差分传输技术,在数据流传输过程中找到参考端和监视端信号,从而去调节SerDes中数据位对齐和采样稳定性的问题。该系统视频流数据通过LVDS多通道传输,传输速率可达10 Gb/s。此试验工程表明,该系统能够稳定、可靠、高效工作,具备一定的工程实用价值。Based on the Micro-LED product series,this experimental project has designed an FPGA-based LVDS automatic calibration for the multi-channel video stream transmission system.The system platform is equipped with an external GSV2011 decoding chip,which converts the obtained 2K@120 Hz/4K@60 Hz video stream signals into 80-bit data package according to custom specifications,and then pushes them to the LYDNT27001 constant current source display driver chip.In thise system,the video stream data transmission involves multiple levels of FPGA chip data transfer,utilizing LVDS low-voltage differential transmission technology.In order to adjust the data bit alignment and sampling stability issues with the SerDes,the reference and monitor signals are identified during the process of data stream transmission video stream data of this system transmits through LVDS multiple channels,which can achieve a transmission rate of up to 10 Gb/s.This experimental project demonstrates that the system can operate stably,reliably,and efficiently,therefore it has certain practical value in engineering field.

关 键 词：FPGA LVDS SERDES Micro-LED 自动校准 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]