USB Device Descriptor Failure

jayman

I have 4 UP Xtreme systems in my lab and they all show the same error about a USB Device Descriptor Failure:

The device in questions appears to be USB HighSpeed port 8, which is assigned to the M.2 (2230 E-key) header. I do not have anything connected to that header on any of the systems, but they all show the same error.

Any clue as to what's going on here?

rogertsai(AAEON)

@jayman
The "Unknown USB device (.HS08)" is a normal because there was no driver on this device.
Please refer to the user manual below, chapter 3.1, pp. 40 for details
UPX-Edge Manual 1.0

jayman

Oh that makes sense now. I was going by the block diagram (https://up-board.org/up-xtreme/) which shows HS port 8 connected to the M.2 E-key and HS port 10 going to the STM32. I guess those 2 were swapped since HS port 10 is what Intel recommends to be used for the CNV interface.

jayman

@rogertsai(AAEON) said:
@jayman
The "Unknown USB device (.HS08)" is a normal because there was no driver on this device.
Please refer to the user manual below, chapter 3.1, pp. 40 for details
UPX-Edge Manual 1.0

The first few UP Xtreme system we bought apparently came with a blank MCU flash, thus causing the DEVICE_DESCRIPTOR_FAILURE error. On the more recent ones, the MCU was pre-programmed and shows up as USB Serial Device.

Robin023

I have solved my issue by connecting the USB to another port.