Other Parts Discussed in Thread: AM4376
Tool/software: Linux
Dear All
Please help. I have a problem with hub TUSB2046B (QFN package). The processor does not recognize the hub and does not recognize the devices connected to it. I also have one hub from a previously purchased batch that is recognized by the processor. Devices connected to the hub are also not recognized. I am using a Sitara AM4376BZDN80 processor. I added a part of the circuit.
First bad hub
[ 3.694647] usb 1-1: new full-speed USB device number 4 using xhci-hcd
[ 3.706661] usb 1-1: Device not responding to setup address.
[ 3.924736] usb 1-1: Device not responding to setup address.
[ 4.144634] usb 1-1: device not accepting address 4, error -71
[ 4.294633] usb 1-1: new full-speed USB device number 5 using xhci-hcd
[ 4.301270] usb 1-1: Device not responding to setup address.
[ 4.524727] usb 1-1: Device not responding to setup address.
[ 4.744628] usb 1-1: device not accepting address 5, error -71
[ 4.750550] usb usb1-port1: unable to enumerate USB device
Conditionally good hub
[ 439.814641] usb 1-1: new full-speed USB device number 6 using xhci-hcd
[ 440.114915] hub 1-1:1.0: USB hub found
[ 440.120842] hub 1-1:1.0: 4 ports detected
