基于FPGA的4K视频板间传输显示系统

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关键 词：FPGA;4K视频;GTX收发器;64b/66b编码 图分类号：TN919.8 文献标识码：A doi：10.37188/CJLCD.2025-0090 CSTR：32172.14.CJLCD.2025-0090

Abstract：With the widespread application of 4K ultra-high-definition video technology in medical and security fields，field-programmable gate arays （FPGAs）are increasingly employed for collaborative processing of large-scale UHD video tasks. To address the low data bandwidth utilization caused by 8b/10b encoding in high-speed transceivers，this paper proposes an FPGA-based 4K video board-to-board transmission and display system. The system architecture utilizes FPGA as the core controller，integrated with an STM32 microcontroller and GSV2Oll codec chip to manage data transmission modes，while optimizing the hardware interface of GTX transceivers. By employing 64b/66b encoding in multi-channel GTX transceivers and designing encoding/decoding logic aligned with 4K video stream timing，the system achieves eficient transmission.Key innovations include multi-channel data synchronization mechanisms and DDR multi-frame bufering logic，effectively resolving channel-skew-induced transmission deviations and display frame tearing caused by clock rate mismatches during read/write operations.Experimental resultsdemonstrate that the system stably realizesreal-time 4K@60Hz video transmission between boards with low hardware resource consumption. Compared with 8b/1Ob encoding，it reduces efective bandwidth requirements by 3.12Gb/s while maintaining equivalent transmission performance. This solution provides a flexible，cost-eficient transmission framework for multi-FPGA collaborative processing in UHD video scenarios，demonstrating significant engineering application value.

Key words：FPGA；4K video；GTX transceiver；64b/66b encoding

1引言

随着信息技术的高速发展，超高清视频显示在众多领域的需求日益增长，尤其在医疗、娱乐、安防等对图像清晰度要求较高的行业，4K0 3840×2160 分辨率视频以其细腻生动的图像表现逐渐成为主流应用[1-2]。（剩余12336字）