摘要
针对高温和电磁干扰等复杂环境对高速视频低压差分信号解码能力的影响,提出了一种高可靠性的FPGA解码解决方案。通过改善板上阻抗匹配、提高解码模块所在单元供电稳定性、增加解码程序的约束条件等措施,将FPGA串行解码理论频率从280 MHz提高到316 MHz,提高了12.86%。实验表明,改进后的设计能够在55℃高温和大电磁干扰的复杂环境下对视频数据进行正确解码,实现稳定的图像显示。
In order to solve the influence of complex environment such as high temperature and high electromagnetic interference on low voltage differential signal decoding,a method of high reliability of FPGA decoding is proposed. The impedance matching of the board and the stability of power to decoding module is improved,the time constraint of decoding module is increased. The experimental results show the decoding frequency of FPGA is improved from 280 MHz to 316 MHz,which is improved about 12. 86%,temperature of correct decoding is improved to 55 ℃,and the display is stable.
引文
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