转载:https://www.kuttig.eu/en/ems-guide/electronics-development/pcb-fiducial-marker.html#:~:text=Fiducial%20marker%20or%20fiducial%20refers%20to%20the%20reference,alternatively%20also%20referred%20as%20circuit%20pattern%20recognition%20marks.
symbol设计:
用elipse圆,FID?,type:(no bom)
footprint设计:
添加pad,属性如下