UVC for STM32F429I Discovery Board

Question

Hi,
I am developing a webcam like application with STM32F429I. I am using the discovery board for my development.
I wish to configure the USB 2.0 as a UVC device. I have instantiated the UVC code available at github.
I am successfully able to connect my kit to the PC, however the USB driver on the PC shows my device as a unknown device.
Kindly suggest if any driver is available to interface the board with the PC as UVC device.

Thanks & regards

P. Bharath Kumar

gihu · Answer

Hi,

Maybe you have problems with the descriptor.

I do not know if there is something similar in windows, but you can plug your board to an android device (ICS or higher) over the usb, or usb otg an take the information of your board with an app like this:

https://play.google.com/store/apps/details?id=aws.apps.usbDeviceEnumerator&hl=es

or any other similar, and check if this information (taken from your usb descriptor) is like you expected, PID, VID, classes, interfaces, endpoints....

If you find an app to do this in windows, even better.

If the info is not correct try to change to an usb descriptor from an existing comercial product, this topic talks about it https://my.st.com/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Flat.aspx?RootFolder=https%3a%2f%2fmy%2est%2ecom%2fpublic%2fSTe2ecommunities%2fmcu%2fLists%2fcortex_mx_stm32%2fAny%20example%20on%20STM32F2xx%20with%20UVC&FolderCTID=0x01200200770978C69A1141439FE559EB459D7580009C4E14902C3CDE46A77F0FFD06506F5B&currentviews=3768

And be patient, usb is not trivial