Tool/software:
Dear expert,
Our customer's board find there is error when use USB. The error log show as following:
Hardware schematic show as following:
What we find on the debug:
- We tried to remove the R110 and hang the drvbus. The Q10 and usb1_vbus are disconnected at the same time, and the vbus is connected to the 5V of the SPI port to achieve stable 5V supply to the vbus.
In the above conditions we tried to plug in the USB device and found that the VBUS stabilized at 5V without dropping, but still reported the following error and the measurement drvbus dropped from 3.3v to 0v. Not recoverable. - When connecting individual USB devices, the VBUS is stable 5V without drop, no error is reported above, the drvbus is measured from 3.3v to 0V, But it can be restored.
SDK version:https://www.ti.com/tool/download/ANDROIDDEVKIT-JB-AM335X/4.0.1
Linux kernel version: linux3.2.0
