It used to work fine before, but I don't know since when, all the multi-layer pads in the PCB library became FULL STACK, resulting in a pad on the top layer and a hole on the bottom layer.
I checked o
[url=home.php?mod=space&uid=753718][font=微软雅黑][size=4]@北[/size][/font][/url][font=微软雅黑][size=4] [/size] [/font][url=https://en.eeworld.com/bbs/thread-1075985-1-1.html][font=微软雅黑][size=4]【 STM32WB55 Ev
When designing a PCB (printed circuit board), one of the most basic issues to consider is how many wiring layers, ground planes, and power planes are needed to achieve the required functions of the ci