I want to install a 4g modem in the pci-e slot via an adapter with a sim card. Therefore, the question. Are pins 36 and 38 of the pci-e connector connected to usb controller?
BPI-R2 PCI-e interface not support USB function , so can not use USB 4G module . if you want to test 4G .please see here
So need pinout usb where does this module is inserted
In general, it is a pity that the developer was too lazy to lay 4 wires to the pci connector. Two for usb and two for msata. Would be a universal slot. And so we have … .