uuu (windows) problems

[fd9750]

Hi,

We are using a custom board based on the IMX8Qm board but it does not matter which board is used: the actual MEK board or the derivative.

The issue is that we are trying to download an application to the board from a windows machine (both windows 10 and windows 11).

The odd thing is that if we reboot the windows machine and then power up the board (which is set up to run USB-BOOT ) we can see via device manager that a new HID device appears and comes up with the following info:

Human Interface Devices
HID-compliant vendor-defined device
USB Input Device
Port#0001 Hub_#0001

Once that happens we can use the UUU tool without any problem as it successfully transfers our flash.bin file.

The problem occurs when we power off the board and power it up again: usually the USB Input device does not reappear in the list of devices displayed by device manager while sometimes it does. In either case we can't use UUU again because it does not recognize/notice the expected USB device. The only way to uses UUU again is to restart the windows machine after having powered off the board and powering it up again once the windows machine has restarted.

Oddly enough I started using the system again after having been busy with other things for a few weeks and it worked flawlessly a few dozen times without having to restart the windows machine. A colleague who noticed wanted me to show him how I managed to use the system without having to restart the windows machine as he had always needed to do. As soon as I tried to demonstrate it to him the system returned to its usual behaviour: always requiring a restart of the windows machine before it is possible to use the UUU tool. Nothing had changed on the windows machine: no software or hardware changes whatsoever.

Has anyone ever experienced this sort of behaviour and more importantly: found a solution for it?

[Harvey021]

Hi @fd9750 

I've not experienced such an issue. Some points from me.

To update the latest driver for the USB host controller may be worth trying. You can find the corresponding required driver by right clicking HID or USB Input Device.

To check the power options for USB settings.

Best regards

Harvey

[fd9750]

Hi Harvey,

Unfortunately I have already tried all of that to no avail. Oddly enough we don't get the problem when we run the uuu software directly from say a laptop. Its almost as if running the computer via rermote desktop interferes with the USB port's operation. Very odd indeed.