We have developed a custom carrier board with a few modifications to the Nvidia Carrier board system.
After I plug in the TX2 module flashed with Jetpack on my carrier board, the HDMI port works and I get a display but USB port does not work. USB_VBUS_EN1 is not pulled up to 3.3V. From what I gather taking some measurements on Development system, USB_VBUS_EN1 just goes to 3.3V after a set period of time with nothing connected on USB port to enable load switch for the port.
I even tried to tie the load switch EN to 5V for the port to receive power but my system doesnt recognize the devices. I am trying to plug in mouse/keyboard one device at a time but no dice.
This port uses signals used by USB 3.0 port on Nvidia Carrier board.
I also tried to read the UART1 lines for debug but when probed on oscilloscope, I see no activity.
Any inputs on what might be going on here or who can support this effort?