When you plug the device into your USB, Windows will look for the associated driver, if it cannot find this driver then you will be prompted to insert the driver disc that came with your device. Common USB Device errors are ‘ usb port not working ‘, ‘device descriptor request failed error’ or ‘bugcodeusbdriver’ issues. Driver WCH PCI Express=DUAL SERIAL For Windows 10 64-bit DOWNLOAD (Mirror #1) 520aad1ef5 Ever since I installed Windows 7 (64-bit), the Device Manager shows under Other Devices / PCI Serial Port / Properties / 'The drivers for this device are not installed. Uaudio 4 has been replaced by a new driver which supports usb audio class v2.0. Or 2 adapter port blockers usb port. 5 easy steps for selecting the right usb to serial adapter for windows 8. Exar's patented charge pump provides a regulated output of +5.5v, which will provide enough voltage for compliant operation in all modes. If your device specifies class code 02 but a subclass code value other than 02, Usbser.sys does not load automatically. Pnp Manager tries to find a driver. If a suitable driver is not found, the device might not have a driver loaded. In this case, you might have to load your own driver or write an INF that references another in-box driver.

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The following system components are available for use with serial controller devices that have hardware interfaces that are compatible with the 16550 universal asynchronous receiver-transmitter (UART):

  • Serial and Serenum drivers

    Serial.sys (Serial) is a system-supplied function driver for serial devices. You can also use Serial as a lower-level device filter driver for any type of Plug and Play device that requires a 16550 UART-compatible interface.

    Serenum.sys (Serenum) is a system-supplied upper-level device filter driver that you can use in conjunction with Serial (or a vendor-supplied function driver) to provide the function of a Plug and Play bus driver for an RS-232 port.

    For more information about the operation of Serial and Serenum, see the following topics:

    • Data definitions in the Ntddser.h header file in the WDK.
  • Ports device setup class

    The Ports class includes serial ports and COM ports. A serial port is a serial communication hardware interface on a 16550 UART or compatible device. An RS-232 port on a computer is typically a DB-9 or DB-25 connector that is electrically connected to the serial port on a UART. A COM port is a serial port that complies with additional Windows-specific requirements. For more information, see Configuration of COM Ports.

  • COM port device interface class

    You must use a COM port device interface to access a COM port. (The GUID for the COM port device interface class is GUID_DEVINTERFACE_COMPORT.)

  • COM port database and COM port database support routines

    The COM port database arbitrates the use of COM port numbers by COM ports.

For information about installing serial devices, see Installing Serial Devices.

Download Exar Port Devices Driver

For general information about the high-level operation of a serial device, see the information about the communications resources that are supported by the Windows Base Services in the Microsoft Windows SDK.

Serial driver samples

These samples demonstrates serial drivers.

  • The Serial sample builds a function driver for serial devices.
  • The Serenum sample provides Plug and Play functionality of a bus driver for an RS-232 port.
  • A simple virtual serial driver (ComPort) and a controller-less modem driver (FakeModem).

ICOMNavi Release Notes

What's new(Update in 2019.12)

DriverPort

Please see the following links available for the latest release information of ICOMNavi series products.

Introduction

  • Include Service Manager, Navigator Framework, Customer Feedback Framework.

  • Include ICOMNavi Navigator Plugin and ICOMNavi Customer Feedback Plugin.

  • Include Windows Exar COM, Windows Oxford COM, Windows Pericom COM, CAN, J1939, ICOM Tester, Fixed Number component packages.

Version

( date )

What's New

(2019-12-17)

1. New Feature:

  • Add the Windows Oxford COM Driver.

2. Bug Fixed:

  • Bug 14235:Failed to clear the register of Windows COM product after uninstall.

  • Bug 13459:Add instructions for fixed number in Readme.

  • Bug 13412:Faild to add the register of product after install in win10.

  • Bug 12525:The exar driver cannot be used in Embedded XP.

  • Bug 12912:Error occurs when communicating after waking up from sleep.

  • Bug 14717:Failed to clear the register for ICOMNavi product after uninstall.

  • Bug 14740:Failed to clear the register for ICOM Tester product after uninstall.

  • Bug 14739:Failed to clear the register for Windows CAN product after uninstall.

  • Bug 14771:Failed to get file version in customer feedback.

  • Bug 13651:Using Data count to instead write instructions in kernel driver.

  • Bug 12408:CAN card WDF driver supporting for SJA-1000 and Win10 HLK.

3. Components Lists:

  • Windows Exar COM Driver(5.3.5.0)

  • Windows Pericom COM Driver(1.2.2.0)

  • Windows Oxford COM Driver(1.36.0.0)

  • Windows ICOM Tester(1.0.4.0)

  • Windows Fixed Number(5.0.7.0)

  • Windows WDM CAN Driver(1.37.0.0)

  • PCI/E-1680s serial drivers(Win7 above)(5.0.0.0)

  • PCI/E-1680 serial manual(5.0.0.0)

  • Examples(5.0.0.0)

  • Windows J1939 Driver(1.0.5.0)

  • ICOMNavi Navigator Plugin(4.0.4.0)

  • Public Navigator Framework(4.0.7.0)

4.0.4.0

(2018-10-30)

1. New Feature:

  • Add Microsoft SHA256 digital signature for Exar driver.

  • Delete the Windows Oxford COM Driver.

  • Add bus driver to instead of mf driver for Exar cards.

  • Update algorithm of fixed number service.

2. Bug Fixed:

  • Bug 14235:Failed to clear the register of Windows COM product after uninstall.

  • Bug 13459:Add instructions for fixed number in Readme.

  • Bug 13412:Faild to add the register of product after install in win10.

  • Bug 12525:The exar driver cannot be used in Embedded XP.

  • Bug 12912:Error occurs when communicating after waking up from sleep.

  • Bug 14717:Failed to clear the register for ICOMNavi product after uninstall.

  • Bug 14740:Failed to clear the register for ICOM Tester product after uninstall.

  • Bug 14739:Failed to clear the register for Windows CAN product after uninstall.

  • Bug 14771:Failed to get file version in customer feedback.

3. Components Lists:

  • Windows Exar COM Driver(5.3.4.0)

  • Windows Pericom COM Driver(1.2.1.0)

  • Windows ICOM Tester(1.0.3.0)

  • Windows Fixed Number(5.0.6.0)

  • Windows WDM CAN Driver(1.36.0.0)

  • Windows J1939 Driver(1.0.4.0)

  • ICOMNavi Navigator Plugin(4.0.3.0)

  • ICOMNavi Customer Feedback Plugin(4.0.2.0)

  • Public Navigator Framework(4.0.5.0)

  • Public Customer Feedbak Framework(4.0.2.0)

  • Public Service Manager(4.0.1.0)

4.0.3.0

(2018-06-01)

1. New Feature:

  • Update Windows Exar COM Driver component package to support mini PCIE cards.

  • Update ICOM Tester to support DTRDSR.

2. Bug Fixed:

  • Bug 10692: The DTRDSR flow control is useless.

  • Bug 8689: RTS toggle flow control occurs time out issue in RS485 mode.

  • Bug 8358: BoardID cannot be written from non-zero to zero.

  • Bug 12936: The steps to uninstall driver in readme should be update.

3. Components Lists:

  • Windows Exar COM Driver(5.3.2.0)

  • Windows Oxford COM Driver(1.35.0.0)

  • Windows Pericom COM Driver(1.2.0.0)

  • Windows ICOM Tester(1.0.2.0)

  • Windows Fixed Number(5.0.4.0)

  • Windows WDM CAN Driver(1.35.0.0)

  • Windows J1939 Driver(1.0.4.0)

  • ICOMNavi Navigator Plugin(4.0.2.0)

  • ICOMNavi Customer Feedback Plugin(4.0.1.0)

  • Public Navigator Framework(4.0.4.0)

  • Public Customer Feedbak Framework(4.0.1.0)

  • Public Service Manager(4.0.1.0)

  • Uninstaller(4.0.3.0)

4.0.2.0

(2017-12-01)

1. New Feature:

  • Update PCI/PCIE COM Driver component package to support PCI-1604L and PCI-1602UP.

2. Bug Fixed:

3. Known Issues:

4.0.1.0

(2016-09-12)

  • Initial version

Introduction

  • Include Windows Exar COM, Windows Pericom COM, Oxford, Fixed Number component packages

Version

( date )

What's New

(2019-12-17)

1. New Feature:

  • Add the Windows Oxford COM Driver.

2. Bug Fixed:

  • Bug 16847:Some ports read serial mode incorrectly after wake up from sleep in win10.

  • Bug 17057:Syatem can not communicate with PCIE-1602B after cold boot.

  • Bug 15746:Port number list out of order.

  • Bug 14119:Install and uninstall drivers repeatly will cause port number discontinuously.

  • Bug 13441:Runmode and boardID detected in win10 is wrong after wake up from sleep or fast startup.

  • Bug 18689:Modify component package to compatiable the old products.

3. Components Lists:

  • Windows Exar COM Driver(5.3.5.0)

  • Windows Pericom COM Driver(1.2.2.0)

  • Windows Oxford COM Driver(1.36.0.0)

  • Windows Fixed Number(5.0.7.0)

5.3.5.0

(2018-09-30)

1. New Feature:

  • Add Microsoft SHA256 digital signature for Exar driver.

2. Bug Fixed:

3. Components Lists:

  • Windows Exar COM Driver(5.3.4.0)

  • Windows Pericom COM Driver(1.2.1.0)

  • Windows Fixed Number(5.0.6.0)

5.3.4.0

(2018-09-15)

1. New Feature:

  • Add bus driver to instead of mf driver for Exar cards.

  • Update algorithm of fixed number service.

2. Bug Fixed:

  • Bug 14235:Failed to clear the register of product after uninstall.

  • Bug 13459:Add instructions for fixed number in Readme.

  • Bug 13412:Faild to add the register of product after install in win10.

  • Bug 12525:The exar driver cannot be used in Embedded XP.

  • Bug 12912:Error occurs when communicating after waking up from sleep.

3. Components Lists:

  • Windows Exar COM Driver(5.3.3.0)

  • Windows Pericom COM Driver(1.2.1.0)

  • Windows Fixed Number(5.0.6.0)

5.3.3.0

(2018-08-27)

1. New Feature:

  • Update Windows COM Product package.

  • Delete the Windows Oxford COM Driver.

2. Bug Fixed:

3. Components Lists:

  • Windows Exar COM Driver(5.3.2.0)

  • Windows Pericom COM Driver(1.2.0.0)

  • Windows Fixed Number(5.0.4.0)

5.3.2.0

(2018-06-01)

1. New Feature:

  • Update Windows Exar COM component package to support mini PCIE cards.

2. Bug Fixed:

  • Bug 10692: The DTRDSR flow control is useless.

  • Bug 8689: RTS toggle flow control occurs time out issue in RS485 mode.

  • Bug 8358: BoardID cannot be written from non-zero to zero.

  • Bug 12936: The steps to uninstall driver in readme should be update.

3. Components Lists:

  • Windows Exar COM Driver(5.3.2.0)

  • Windows Oxford COM Driver(1.35.0.0)

  • Windows Pericom COM Driver(1.2.0.0)

  • Windows Fixed Number(5.0.4.0)

5.3.0.0

(2017-12-01)

1. New Feature:

  • Add pericom driver to support PCI-1602UP and PCI-1604L.

2. Bug Fixed:

3. Known Issues:

5.2.0.0

(2017-03-08)

1. New Feature:

  • Support PCI-1604L.

  • Modify the default state of the Fixed Number Service as disabled.

  • Add shortcuts to enable and disable Fixed Number Service in Start Menu.

2. Bug Fixed:

  • Bug 8358: The boardID are wrong with fast startup mode in Win8.1 Professional with Update.

3. Known Issues:

5.0.4.0

(2016-09-12)

1. New Feature:

  • The Exar COM Driver add the function of fixed number.

  • Add ICOM Tester Tools.

2. Bug Fixed:

  • Bug 4875: Failed to modify the baudRate in the properties page, when at the same time to modify the port number.

  • Bug 4589: The port name will be changed when to modify the port number.

  • Bug 5267: The run mode and boardID are wrong with fast startup mode in win8/10.

3. Known Issues:

Introduction

  • Include Windows WDM CAN Driver and J1939 components.

  • Include CAN example.

Version

( date )

What's New

(2019-12-17)

1. New Feature:

2. Bug Fixed:

  • Bug 13651:Using Data count to instead write instructions in kernel driver.

3. Components Lists:

  • PCL-841,PCI/E-1680 serial legacy drivers(WinXp)(1.37.0.0)

  • Windows J1939 Driver(1.0.5.0)

1.35.1.0

(2018-10-30)

1. New Feature:

2. Bug Fixed:

  • Bug 14739:Failed to clear the register for Windows CAN product after uninstall.

3. Components Lists:

  • Windows WDM CAN Driver(1.36.0.0)

  • Windows J1939 Driver(1.0.4.0)

1.35.0.0

(2018-06-01)

1. New Feature:

  • Initial version

2. Bug Fixed:

3. Components Lists:

  • Windows WDM CAN Driver(1.35.0.0)

  • Windows J1939 Driver(1.0.4.0)

Introduction

  • Include Windows WDF CAN Driver and J1939 components.

  • Include CAN examples,manual.

Version

( date )

What's New

(2019-12-17)

1. New Feature:

  • Add Microsoft SHA256 digital signature for WDF CAN driver.

2. Bug Fixed:

  • Bug 13651:Using Data count to instead write instructions in kernel driver.

  • Bug 12408:CAN card WDF driver supporting for SJA-1000 and Win10 HLK.

3. Components Lists:

  • PCI/E-1680s serial drivers(Win7 above)(5.0.0.0)

  • Windows J1939 Driver(1.0.5.0)

  • PCI/E-1680 serial manual(5.0.0.0)

  • Examples(5.0.0.0)

ICOM Tester:

Introduction

  • Include ICOM Tester component package.

Version

( date )

What's New

(2019-12-17)

1. New Feature:

2. Bug Fixed:

  • Bug 13432:The relationship between port and card is not recognized in ICOM Tester.

  • Bug 9723:Port name displayed in ICOM Tester without device information.

3. Components Lists:

  • Windows ICOM Tester(1.0.4.0)

1.0.3.0

(2018-10-30)

1. New Feature:

2. Bug Fixed:

  • Bug 14740:Failed to clear the register for ICOM Tester product after uninstall.

3. Components Lists:

  • Windows ICOM Tester(1.0.3.0)

1.0.2.0

(2018-06-01)

1. New Feature:

  • Initial version

2. Bug Fixed:

3. Components Lists:

  • Windows ICOM Tester(1.0.2.0)

Introduction

  • Include Linux Exar COM Driver.

Version

( date )

What's New

5.0.6.0

(2019-12-17)

1. New Feature:

2. Bug Fixed:

  • Bug 14750: COM linux driver build error in ubuntu16.04.

3. Known Issues:

5.0.5.0

(2018-10-30)

1. New Feature:

2. Bug Fixed:

  • Bug 14750:Support kernel up to 4.12.x.

3. Known Issues:

5.0.4.0

(2018-06-01)

1. New Feature:

  • Support mini PCIE cards.

  • Add XON ANY support.

  • Support termios2 for non-standard baud rate;

2. Bug Fixed:

  • Bug 10859: Data error occurs when using XON/XOFF.

  • Bug 10747: Failed to send data when using RTSCTS in RS422.

  • Bug 10686: The function of DTRDSR is wrong.

3. Known Issues:

5.0.3.0

(2016-03-07)

1. New Feature:

  • Add fixed number.

  • Add a parameter to enable/disable internal loop back.

  • Add non-standard baud rates support.

  • Improve Software flow control and Hardware flow control behavior.

  • Support kernel 2.6.9;

2. Bug Fixed:

  • Bug 6445: Lost 0x11 and 0x13 when the kernel version is 2.6.18.

3. Known Issues:

5.0.2.0

(2016-09-12)

1. New Feature:

  • Support kernel up to 4.2.x

2. Bug Fixed:

  • Bug 1625: Data error occurs when using on Fedora 21/23.

  • Bug 5651: Compile error occurs when the kernel version is 2.6.24.

3. Known Issues:

Introduction

  • Include Linux Pericom Driver .

Version

( date )

What's New

1.02.2.0

(2019-12-17)

1. New Feature:

2. Bug Fixed:

  • Bug 14751: Upgrade support kernel version of linux pericom driver..

3. Known Issues:

1.02.1.0

(2018-10-30)

1. New Feature:

  • Add fixed number function.

2. Bug Fixed:

  • Bug 14751: Support kernel up to 4.12.x.

  • Development 12199: Add fixed number.

3. Known Issues:

1.02.0.0

(2017-12-01)

  • Initial version

Introduction

  • Include Linux CAN Driver and example.

Version

( date )

What's New

2.0.19.0

(2018-10-30)

1. New Feature:

2. Bug Fixed:

  • Bug 14738: Support kernel up to 4.15.x.

  • Bug 13769: Failed to transmit data when using in ubuntu16.04 with Skylake CPU.

3. Known Issues:

2.0.18.0

(2016-09-12)

1. New Feature:

  • Support kernel up to 4.2.x

2. Bug Fixed:

3. Known Issues:

Download Exar Port Devices Driver Ed

Introduction

  • Include Linux Socket CAN Driver and example.

Download Exar Port Devices Driver Download

Version

( date )

What's New

1.0.1.0

(2018-10-30)

1. New Feature:

2. Bug Fixed:

  • Bug 14752: Support kernel up to 4.15.x.

3. Known Issues:

1.0.0.0

(2016-09-12)

  • Initial version

Introduction

  • Include QNX Exar COM Driver and example.

Download Exar Port Devices Driver Updater

Version

( date )

What's New

5.0.2.0

(2018-06-01)

  • Initial version

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