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AM5718: USB2 DRVVBUS toggling issue

khushboo singh
Intellectual 880 points
Part Number: AM5718


Tool/software:

Hi,

We are using AM5718 in our board design. We have configured usb2 as phy.

When we connect usb2 at starting, it is getting configured correctly but when we disconnect usb from PC and again connect, USB PHY is not working.  Board is drawing more current and output pin USB2_DRVVBUS ( pin no AC10 of AM571X_ABC) toggle between 0 and 3.3 V. But USB2 detecd GPIO_1/VBUSDET of PMIC (pin no C13 of TPS6590379ZWSR) gives currect output. This problem is unique to one board, other boards are not having this issue. Schematic snapshot has been attached for your reference. Kindly give your valuable idea how to solve this issue.