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针对HDMI2.0中继器在传输数据的过程中数据因干扰会发生错误的问题,提出了采用前向纠错技术(FEC)来纠正控制周期数据错误而导致的错误视频和音频数据的方案,给出了FEC和HDMI2.0协议相结合的具体过程,实现了基于HDMI2.0接口的数据纠错模块的设计。在Cadence平台下,编写了可综合的Verilog代码实现了电路的设计,并用科学的测试方法对数据纠错模块进行了测试验证。验证结果表明:数据纠错模块和HDMI2.0接口有机地结合在一起,有效纠正了HDMI2.0中继器在数据传输过程中产生的错误,增强了数据传输的可靠性并提高了视听效果。
Aiming at the problem of data interference due to interference during the transmission of data in HDMI2.0 repeater, a scheme of using forward error correction (FEC) to correct erroneous video and audio data caused by erroneous control cycle data is proposed. The specific process of combining FEC and HDMI2.0 protocol is given, and the design of data error correction module based on HDMI2.0 interface is realized. Under the Cadence platform, we write a synthesizable Verilog code to realize the circuit design, and test the data error correction module with the scientific test method. The verification results show that the data error correction module and the HDMI2.0 interface are organically integrated, effectively correcting the errors generated by the HDMI2.0 repeater during data transmission, enhancing the reliability of data transmission and improving the audio-visual effect.