It is generally recommended to use the method of automatic routing + manual adjustment. Automatic routing requires routing in the order of ground line – power line – clock line – others. Set the routing priority in the routing rules, 0 is the lowest level, 100 is the highest level, and there are 101 situations in total. In more complex circuit boards, considering the requirements of electrical characteristics, interference and other factors, we all use manual routing. It is forbidden to place vias on the pins of components, and the already routed lines should be locked before automatic routing. The routing should take into account both aesthetics and electrical characteristics. In particular, the routing that affects the appearance should be routed on the reverse side. In principle, do not route the front side of the product name, model and Zhongyou logo (except in special cases), and do not allow front routing between the silk screen frame and the Keepout frame (except in special cases).