Automatic firmware switching method and system for retimer, electronic equipment and medium

The invention provides an automatic firmware switching method and system for a retimer, electronic equipment and a medium. The method comprises the following steps: determining a total in-place signal based on an in-place signal of external storage equipment; switching firmware configuration of a retimer based on a node identity signal and the total in-place signal to extend a communication link of the storage node; the firmware configuration of the retimer at least comprises NTB firmware configuration and NTB and PCIe firmware synchronous configuration. The invention provides an automatic firmware switching method and system for a retimer, electronic equipment and a medium, and aims to automatically switch firmware configuration of the retimer to be used in different application scenes, increase the expandability and flexibility of the system and meet the requirement of prolonging the transmission distance of a high-speed signal at the same time. Besides, according to different application scenes, NTB and PC