Silabs Software Usb Devices Drivers
Silabs Software Usb Devices Driver Download
Silabs Software Usb Devices Driver Free
Silabs Software Usb Devices Driver Update

RF Explorer connects to Computers and Tablets using a Mini-USB connector. For the USB connection to work, you need to a Silicon Labs CP2102 driver installed on your system. The driver is available for all Windows, Mac and Linux computers, and can be downloaded from this page.

Virtual COM port (VCP) drivers cause the USB device to appear as an additional COM port available to the PC. Application software can access the USB device in the This page contains the VCP drivers currently available for FTDI devices. For D2XX Direct drivers, please click here. The latest version Silicon labs driver cp210x USB to UART Bridge driver does not work (will not install) on Windows 10 build 1903. The older driver (6.7.4.261) installs and works fine on the same machine running Windows 10 build 1803. I am trying to communicate with an ESP32 development board that has Sil Labs USB to Serial chip.

USB Driver v4.4 Installation Instructions

System Requirements

Silabs Software Usb Devices Drivers

Windows Vista / 7 / 8 -- 64-bit only^?
- For 32-bit Windows, click here.
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, click here.

Update

This issue has been resolved in version 12.04 of our software. Please contact us 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 version 6.x, esp. when using a low baud rate.

Computer processors reported as unreliable with USB driver 6.x Presonus others driver update.

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:CHIcp210x44 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:
1. Open Device Manager as in Step 3.
2. Locate the 'CP2101' device as in Step 4.
3. (Optional) Determine the currently installed driver version as in Step 10 to be 6.x or higher.
4. Right-click on the device and select Uninstall.
5. In the 'Confirm Device Uninstall' dialog box, check 'Delete the driver software for this device' and click OK.
6. Disconnect your computer from the internet.
7. 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.
Select 'Browse my computer for driver software'.
Step 5: Do not search automatically for drivers.
Specify the extraction directory from Step 1 and click Next.
Step 6: Search for drivers in the extraction directory from Step 1 (C:CHIcp210x44 in the example above).
Click Install when presented with a security warning.
Step 7: Trust CH Instruments, Inc. as a publisher.

Silicon Labs wrote the driver; all we (CH Instruments) did was sign it (i.e., vouch for it; see Notes).
Windows will now proceed to install driver files, resulting in the following window when complete:
Step 8: Driver files installed.
Repeat Steps 4-8 until the 'CP2101 USB to UART Bridge Controller' device no longer shows up with an exclamation mark:
Step 9: Driver installation complete.

Two new devices should now be present in Device Manager: a 'CP210x USB to UART Bridge Controller' under 'Ports (COM & LPT)', and a 'USB Composite Device' under 'Universal Serial Bus controllers'.
Double-click on the 'CP210x USB to UART Bridge Controller' device under 'Ports (COM & LPT)' and verify that USB driver v4.4 is installed, working correctly, and signed by CH Instruments.
Step 10: Verify driver status.

This completes driver installation. Take note of the COM port number (COM4 in the example above). Assign this number in your instrument software, using the System command under the Setup menu, and then run the Hardware Test command under the Setup menu to confirm that the instrument and computer are communicating properly.

Instrument Installation

First complete the USB Driver installation procedure above.
Disconnect the instrument from your PC, if applicable.
Connect the instrument to your PC and turn the power on.
Wait for any automatic system installation tasks to complete.
Open Device Manager (right-click [My] Computer > Manage > Device Manager).
Double-click the category 'Ports (COM & LPT)' to display:
Locate 'CP210x USB to UART Bridge Controller' or a similarly named device to verify successful installation.

This completes instrument installation.

Take note of the COM port number (COM5 in the example above). Assign this number in your instrument software, using the System command under the Setup menu, and then run the Hardware Test command under the Setup menu to confirm that the instrument and computer are communicating properly.

Driver Uninstallation

To uninstall any previously installed drivers, right-click on the device in Device Manager and click Uninstall. You may need to do this not only for the COM Port, but also a USB Composite Device.

Right-click on the CP210x COM device in Device Manager and click Uninstall (check 'Delete the software driver for this device' when prompted).
If present, you will also need to do this for a 'Cygnal USB Composite Device' or 'CP210x USB Composite Device' under the Universal Serial Bus Controllers category as shown here.
To confirm that the USB driver is fully uninstalled, disconnect and reconnect the instrument to your computer and make sure that the CP210x device is now listed under Other devices as shown here. The Cygnal or CP210x composite device should also no longer be installed.
If at this point a COM port is still assigned, you may also need to uninstall the driver from Control Panel > Programs and Features and repeat the procedure above.
Rebooting your computer immediately after uninstalling drivers may also h

Silabs Software USB Devices Driver