I need more valid confirmation.
The board works directly being connected into a Windows8 machine
You mean, on Win8 (8.1), WinUSB driver is assigned to the device without installing any INF file. Doesn't it?
- It suggests "WinUSB Device", which provides MS OS descriptors.
but we can't get it working on Windows7.
We tried installing that Windows Phone driver, and got the .inf from there, but when plugging the USB cable in, it didn't find it automatically or after a directed directory search.
a) Did you uninstall the device instance once on the Device Manager, before plug-in the device to the PC, described on my above post?
- Windows request MS OS descriptors just when there isn't any device instance of the device on the registry.
b) Is the USB port on the Win7 machine USB3.0 one?
- It is known that Renesas USB3.0 driver (2.1.28.1) has a problem around MS OS descriptors.
http://www.microchip.com/forums/m802958.aspxAnyway, what is the USB example, your device derives from?
Microchip MLA? Which version?
Tsuneo