Windows will locate the driver and install the port. Repeat this process if multiple unrecognized ports are listed. Step 4: Verifying the Installation
To avoid compatibility issues, always use the latest drivers directly from the manufacturer. The driver package typically covers the and CH384 series.
This issue crops up when Windows 10 tries to map old or corrupted driver files that lack proper 64-bit indexing definitions.
Look for items with a yellow exclamation mark under . They may be labeled "PCI Serial Port" or "PCI Simple Communications Controller." wch ch382l driver windows 10
If you have recently purchased a budget-friendly PCI Express serial or parallel port expansion card, chances are it is powered by a chip from Nanjing Qinheng Microelectronics (WCH). Among these, the is a popular controller found on many PCIe add-on cards. However, a common challenge users face is that Windows 10 does not automatically recognize these devices.
slot into two independent high-speed 16C550/16C750 compatible UART serial ports.
WCH CH382L Driver for Windows 10: Complete Installation Guide Windows will locate the driver and install the port
| Problem | Solution | |---------|----------| | | Use latest driver (v3.8+). Or temporarily disable driver signature enforcement (for testing). | | Code 10 – device cannot start | Uninstall driver → delete C:\Windows\System32\drivers\ch382.sys → reinstall with admin rights. | | Parallel port not detected | Check BIOS → ensure PCIe slot is enabled. Try different slot. | | Installer fails to run | Run as Admin + disable antivirus temporarily. |
This is the quickest method for most users.
Installing the is not plug-and-play, but by following this guide, you can overcome driver signature issues and legacy compatibility barriers. The key steps are: The driver package typically covers the and CH384 series
The CH382L is compatible with the standard 16C550 UART and features a 256-byte buffer on each port, supporting standard data bits (5-8), stop bits (1-2), and hardware or software flow control.
Reassign the port to an open low number (like COM1, COM2, or COM3). Ignore any "in use" warnings if you know no other physical device is currently plugged into that port assignment. Click to save. Conclusion
3. Software Requires Specific COM Port Numbers (e.g., COM1 or COM2)