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Hy, i'm starting to program on stm32f407 and I have some problem using USB.
I manage to make simple application with wizard. But now, i want to make for example an HID Application with more than one endpoint. For example, i want ARM to send data to PC as a keyboard and mouse.
How can i make multiple endpoint and more complex HID report descriptor.
I use keil 4.54 and rl-arm library.
Thanks for your help. I found help and manual not clear on this point.
If you would run the example once on your PC, the USB configuration of the example should be recorded on Windows registry. When you modify descriptors, Windows could be confused by seeing different USB configuration on your device. Windows try to assign previous device driver and fail.
Windows manages devices using their Vendor/Product ID (VID/PID). When you change device configuration, a) Assign another VID/PID to your device OR b) Uninstall the device instance from Windows.
This utility gives easy way to find / uninstall target device instace of the VID/PID USBDeview www.nirsoft.net/.../usb_devices_view.html
Tsuneo