The steps of EDA PCB layout can follow the following principles:
First, the modular layout is used to classify components according to function, which helps to improve design efficiency. In the layout, you can use shortcut keys such as shift ctrl x to directly position the device, and try to make the position of each device symmetrical, such as placing the filter capacitor near the chip.
Second, the power line should be thick and symmetrical when routing, if it is found that the direction cannot be modified by rotation, you can consider modifying the schematic direction to facilitate wiring. After the initial wiring is finished, it needs to be adjusted again, and try to avoid right angles and acute angles.
Finally, the crystal oscillator can not be coated with copper, and it is necessary to walk the ground covering wire, while paying attention to which parts of other devices can not be coated with copper, and set the forbidden area. After completing these steps, tear drops can be added, which is conducive to welding. For serial pins such as serial ports and swd, you can add a description on the screen layer.
The above is the basic steps and precautions for PCB layout in Jialicang EDA, I hope to help you.