The Virtual COM Port (VCP) device drivers allow the NETUSB device to appear to the PC's application
software as an additional COM port (in addition to any existing hardware COM ports). Application software
running on the PC accesses the NETUSB device as it would access a standard hardware COM port.
However, actual data transfer between the PC and the NETUSB device is performed over the USB.
Therefore, existing COM port applications may be used to transfer data via the USB to the NETUSB-based
device without modifying the application.
3.3.2 Virtual COM Port Driver Installation Windows 2000
Follow these steps to install the Windows 2000 VCOM driver:
1. Connect the USB cable between the host computer and the NETUSB device.
2. Windows will open a "Found New Hardware Wizard" window. Press Next to continue.
3. Select "Search for a suitable driver for my device (recommended)" and press Next.
4. Check "Specify a location" and press Next.
5. Press Browse to locate the "slabbus.inf" driver installation file. The default location is the
"C:\SiLabs\MCU\CP2101\WIN" directory. Once this file is selected press OK.
6. Verify that the correct path and filename are shown and press Next.
7. Press Finish to finish installing the "CP2101 USB Composite Device".
8. Windows will open a second "Found New Hardware Wizard" window. Press Next to continue.
9. Select "Search for a suitable driver for my device (recommended)" and press Next.
10. Check "Specify a location" and press Next.
11. Press Browse to locate the "slabw2k.inf" driver installation file. The default location is the
"C:\SiLabs\MCU\CP2101\WIN" directory. Once this file is selected press OK.
12. Verify that the correct path and filename are shown and press Next.
13. Press Finish to finish installing the "CP2101 USB to UART Bridge Controller".
3.3.3 Virtual COM Port Driver Installation Windows XP
Follow these steps to install the Windows XP VCOM driver:
1. Connect the USB cable between the host computer and the NETUSB target device.
2. Windows will open a "Found New Hardware Wizard" window.
3. Select "Install from a list or specific location (Advanced)" and press Next.
4. Select "Include this location in the search".
5. Press Browse to locate the "C:\SiLabs\MCU\CP2101\WIN" directory. Once this directory is
selected press OK.
6. Verify that the correct path and filename are shown and press Next.
7. Press Finish to finish installing the "CP2101 USB Composite Device".
8. Windows will open a second "Found New Hardware Wizard" window.
9. Select "Install from a list or specific location (Advanced)" and press Next.
NET232/NETUSB User Guide
Configure
3-3
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