Adaptive adjustment and optimization method of link quality

The invention discloses an adaptive adjustment and optimization method of link quality. For the link of a high-speed serial interface SerDes (Serialzer-Deserializer), the method adds PRBS (Pseudo Random Binary Sequence)-31 pseudo-random code generation/checkout into a de-emphasis balancing process of the high-speed serial interface, an error rate and temperature change are taken as the end judgment signs of DFE (Decision Feedback Equalization), and a fixed flow of high-speed SerDes link quality adjustment and optimization is formed. The method can effectively improve the transmission quality of the SerDes link, obviously lowers the transmission error rate so as to improve the transmission performance of a chip bus, is high in automation degree, and has the characteristics of high link adjustment and optimization speed, good effect and the like.