Silicon Laboratories SiM3U1xx Manuel d'utilisateur Page 26

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AN758
26 Rev. 0.1
6. CDC Driver
The CDC class is implemented in all releases of Windows, and the operating system needs an INF file for the CDC
driver. This INF file contains the Vendor ID and Product ID. If the VID/PID of the USB devices matches the INF file,
Windows will load the driver described in the file. The CDC_ACM INF file can be found in the
AN758_USB_CDC\src\VirtualSerial directory.
6.1. Installing the Driver
To install the driver on Windows 7:
1. Build the project and download firmware to the SiM3U1xx MCU card.
2. Connect the USB cable between the Device USB connector (J13) and the PC.
3. Open Device Manager. The device will appear under Other devices as the SiM3U1xx CDC Class device.
4. Right-click on the SiM3U1xx CDC Class device and select Update Driver Software.
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