HDMI2.0接口FEC纠错模块设计

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.

Design for FEC error correction module in HDMI2.0 interface

Against the problem that data errors will occur because of the interference when transmitting in HDMI2.0 repeater,this paper proposed the forward error correction (FEC) is used to correct errors in video or audio data caused by the data control period,and gives the specific combination process between FEC and HDMI2.0 protocol and eventually realizes the design of data error correction module based on HDMI2.0 interface.In Cadence platform,writing the synthesizable Verilog code describing the circuit design,and testing data error correction module with scientific testing methods have been completed.Verification results show that:data error correction module and interface of HDMI2.0 are organically unifies in together,which effectively correct error data in the process of transmitting in HDMI2.0 repeater,enhance reliability of data transmission and improve audiovisual effects.