I would look at the CM4IO board.I will have a look at CM4 IO board design. Thanks for reference.
I notice that pin number 103 (USB2_N) and 105 (USB2_P) in CM4 are the actual data pins belong to differential pair and these pins need to be connected to micro USB connector D+ and D- pins.
question: if I connect the USB cable ground to the ground of custom board hosting CM4 and provide power to CM4 through the custom board hosting CM4, in that case can I just leave/ignore the power from USB cable ?
Statistics: Posted by dp11 — Thu Aug 28, 2025 1:32 pm