Free Download Silicon Labs CP2102 USB to UART Bridge VCP Driver 6.6.1. About Device Driver. DOWNLOAD Silicon Labs CP2102 USB to UART Bridge VCP Driver 6.6.1. USB Driver v4.4 Installation Instructions System Requirements • Windows Vista / 7 / 8 -- 64-bit only • For 32-bit Windows,. • Administrative privileges on your computer (please consult your system administrator for details) • Intel Core i3/i5/i7 processor. • CH Instruments Software version 12.03 or older (Help > About) • If you are using a newer version of our software,. Update This issue has been resolved in version 12.04 of our software. Please to request your free software upgrade. Instructions for installing legacy driver 4.4 are included below to support users still running software version 12.03 or lower. Driver version 4.4 is intended for use on computers which: • Run 64-bit Windows and • Experience unreliable communication with, esp. When using a low baud rate. Computer processors reported as unreliable with USB driver 6.x • Intel Core i3 • Intel Core i5 • Intel Core i7 • AMD Phenom II X4 • system included USB 1.x controller • problematic on firmware updates only • fixed with driver 4.4 The communication problem appears to affect all recent computers with Intel Core i3/i5/i7 processors whose motherboards lack an onboard USB 1.x controller and instead include a USB 2.0 rate-matching hub. If you cannot find a 'Universal' or 'Open' host controller in Device Manager under the 'Universal Serial Bus' category, you may be better off 'beta testing' v4.4 rather than waiting for v6.0 to fail. Step by Step: Driver Installation • Download and run (double-click) the file 'cp210x44.zip' from the link above. Right-click the file and select 'Extract All' to extract the driver files. Step 1: Extract files to specified directory (C: CHI cp210x44 in the example above). • Connect the instrument to a USB port on your computer and turn the instrument on. Ignore and close any windows that appear automatically. Make sure the instrument's jumper/switch is set to USB (consult your user manual for details). Note: If during this step Windows Update insists on automatically installing a different driver version (6.x or higher), you will need to uninstall this driver manually as follows: • Open Device Manager as in. • Locate the 'CP2101' device as in. • (Optional) Determine the currently installed driver version as in to be 6.x or higher. • Right-click on the device and select Uninstall. • In the 'Confirm Device Uninstall' dialog box, check 'Delete the driver software for this device' and click OK. • Disconnect your computer from the internet. • Disconnect and reconnect the instrument to your computer. This should prevent automatic installation of Silicon Labs driver version 6.x, which has been found to be problematic with newer Intel Core i3/i5/i7 motherboards. • Click the Start orb in the lower-left corner of your desktop and type 'device' in the search field. Click on Device Manager in the search results. Step 3: Open Device Manager. • In Device Manager, double-click on a device marked with a exclamation mark and named 'CP2101 USB to UART Bridge Controller' or something similar; this should be located under the 'Other devices' or 'Universal Serial Bus' category. Step 4: Locate and double-click on CP2101 device. Click the Update Driver button circled above.
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