Thanks for all the suggestions. I tried the UAC to minimum.I get a popup message that the driver was installed successfully.but on another screen I see an error occured because the driver could not be located! I look in the Windows event log and find this: Log Name: System Source: Application Popup Date: 11:38:07 AM Event ID: 56 Task Category: None Level: Error Description: Driver USB returned invalid ID for a child device (0002F7F049E2). The driver works fine on other windows 7 and XP systems running 32 bit. Peter - does your 64 bit system include PORTS under device manager (i.e. Does your PC hardware include serial or printer ports)? My PC has no hardware serial or parallel ports, so that this may cause trouble for the mbded serial installer since the PORTS category is missing under Windows Device Manager.

The mdeb device shows up as an unknown USB composite device after running the install. The driver is from ARM, so that I guess someone at ARM should be able to confirm this error? I can use other PCs.so this is not a critical issue just and inconvenience.

I too have this difficulty however only for some MBEDs. Some of my MBEDs connect and are visible on Explorer window in Windows7 64 bit but not all of them. All of my MBEDs connect and are visible on Explorer window on XP 32bit.

On the W7 machine, the device is connected (I can hear it and it is visible for TeraTerm and it can be 'ejected') however it does not appear on the Explorer window so I cannot drag programs to it. I did copy over the MBED.htm file from a working MBED(on W7) to a non working MBED(on W7) using a WXP machine. Still no luck.

PL2303 Windows Driver Download. USB to Serial Controller ICs using Prolific's trademark logo, brandname, and device drivers, were being sold in the China market. It is not able to create the USB COMM port on my PC, which is a new Dell StudioXPS 8100 running an Intel i5 processor and Windows 7 64 bit. For some reason, the. I installed the Serial USB driver OK yesterday on my Win7 64 system, I have UAC set to its minimal level. Could this be your problem for.

I have a bunch of MBEDs that I cannot use right now. Hopefully someone has had a similar problem. I too have this difficulty however only for some MBEDs. Some of my MBEDs connect and are visible on Explorer window in Windows7 64 bit but not all of them.

All of my MBEDs connect and are visible on Explorer window on XP 32bit. On the W7 machine, the device is connected (I can hear it and it is visible for TeraTerm and it can be 'ejected') however it does not appear on the Explorer window so I cannot drag programs to it.

I did copy over the MBED.htm file from a working MBED(on W7) to a non working MBED(on W7) using a WXP machine. Still no luck.

I have a bunch of MBEDs that I cannot use right now. Hopefully someone has had a similar problem. Wrote: Win7 64bit; on a I5 processor from HP one MBED works fine the other one doesn't seem to be able to communicate with my PC, nor can it be programmed. Koen, Catalin You need to install the serial driver separately for each mbed. France Vfr Charts. Connect the new mbed before running the installer. The mbed should show up as thumbdrive without any installation.

When this fails you may want to check the usb cable and replace it by a better quality cable. Some problems were reported with marginal cables and win7. >Win7 64bit; on a I5 processor from HP one MBED works fine the other one doesn't seem to be able to communicate with my PC, nor can it be programmed. >Koen, Catalin You need to install the serial driver separately for each mbed. Connect the new mbed before running the installer.

The mbed should show up as thumbdrive without any installation. When this fails you may want to check the usb cable and replace it by a better quality cable. Some problems were reported with marginal cables and win7. I also have problems with mbed USB serial (mbedWinSerial_16466.exe) I've just started working with mbed H/W (LPC1768 & LPC11U24) and it's good stuff. My biggest problem is the serial comms over USB for debug logging. Hosting on an i5 running Win7 64 bit, I installed mbedWinSerial_16466.exe. The first 1768 I tried showed no output using TeraTerm as a client, switching to another 1768 and it worked!

I'm now connected to a 11U24 and I have seen no sign of comms over USB despite a number of re-installs of the mbedWinSerial_16466 driver. In fact it's now got worse, when I install mbedWinSerial_16466 it shows up in Device Manager as 'Other devices mbed Composite Device' with the error. I also have problems with mbed USB serial (mbedWinSerial_16466.exe) I've just started working with mbed H/W (LPC1768 & LPC11U24) and it's good stuff. My biggest problem is the serial comms over USB for debug logging.

Hosting on an i5 running Win7 64 bit, I installed mbedWinSerial_16466.exe. The first 1768 I tried showed no output using TeraTerm as a client, switching to another 1768 and it worked!

I'm now connected to a 11U24 and I have seen no sign of comms over USB despite a number of re-installs of the mbedWinSerial_16466 driver. In fact it's now got worse, when I install mbedWinSerial_16466 it shows up in Device Manager as 'Other devices mbed Composite Device' with the error >The drivers for this device are not installed. There is no driver selected for the device information set or element. To find a driver for this device, click Update Driver.' Instead of showing up under 'Ports (COM & LPT) >Any suggestions how to get comms working again, anything I can clean up in the registry etc, anything I can check at the mbed end to see that comms is working at that end? I was experiecing the same problems using my MBED on my home computer (Samsung series 7) with Win7 / 64bit. The driver was properly installed, I was able to see the Virtual COM port under device manager, but when i tried to establish a connection, everything stopped working (I wasn't able even to upload code through thumb drive, nor with using KEIL).

Then I had to restart the PC. I was able to use USBSerial normally. I tried different settings, different cables, nothing helped.

Then I tried to swich the MBED to USB2.0, and that was the solution. Download Cheat Crush Gear Psx. So, if you are trying to connect MBED to a USB3.0 and you experience problems, try with a USB2.0.

Regards, Gorazd. I was experiecing the same problems using my MBED on my home computer (Samsung series 7) with Win7 / 64bit. The driver was properly installed, I was able to see the Virtual COM port under device manager, but when i tried to establish a connection, everything stopped working (I wasn't able even to upload code through thumb drive, nor with using KEIL).

Then I had to restart the PC. I was able to use USBSerial normally.

I tried different settings, different cables, nothing helped. Then I tried to swich the MBED to USB2.0, and that was the solution. So, if you are trying to connect MBED to a USB3.0 and you experience problems, try with a USB2.0. Regards, Gorazd. Man this was a tough nut to crack.

I had tried everything on these forums and eventually fixed my problem. I had to uninstall all the mBed drivers, delete the oem*.inf and *.pnf files. Delete ghosted devices by showing hidden devices in the Device Manager. Remove registry entries in the serial comm folder.

Eventually I found that I could manually add comm ports In device manager. I then went 'Action>Add Legacy Hardware>Install the hardware that I manually select from a list (Advanced) Under Common Hardware Types selected Ports (COM&LPT) Selected (Standard Port Types) and Communications Port and proceeded to install it. I then changed the default COM3 port number manually from the default value of COM3 to COM4 in Port Settings Plugged in the mBed and let it reinstall itslef. Reran the serial driver FINALLY - the mBed appeared as mBed Serial Port COM3 I then plugged in my second mBed and it is now appearing on COM5 I have no idea if any of these steps didn't actually make a difference but I wanted to list everything that I did in case it might work for you.

(INTEL Active management Technology (COM3) ) - SOLVED - When you purchase the HP 6000 Pro keep in mind this is a very powerful machine with many upgrades available. I write this as a problem solver for those who may run into the same Problem I did recently. This machine comes standard with a (2) core CPU and you can upgrade to a Intel 2 Quad core. BUT if you do change to a quad core you will need to know that if you reinstall an operating system with the Quad installed you will run into a major issue with the INTEL Active management Technology (COM3) Driver.

It took me four days with many tests repeated for me to finally realize I needed to keep the Dual core 2.8 E5700 installed while installing the operating system for the driver to install. After you have used a lower grade CPU with a fresh install of an Operating system you can soon after or right after Finally install your Quad core and the Driver remains with no error. (INTEL Active management Technology (COM3) ) - SOLVED - When you purchase the HP 6000 Pro keep in mind this is a very powerful machine with many upgrades available. I write this as a problem solver for those who may run into the same Problem I did recently. This machine comes standard with a (2) core CPU and you can upgrade to a Intel 2 Quad core. BUT if you do change to a quad core you will need to know that if you reinstall an operating system with the Quad installed you will run into a major issue with the INTEL Active management Technology (COM3) Driver.

It took me four days with many tests repeated for me to finally realize I needed to keep the Dual core 2.8 E5700 installed while installing the operating system for the driver to install. After you have used a lower grade CPU with a fresh install of an Operating system you can soon after or right after Finally install your Quad core and the Driver remains with no error.

• • • Microsoft-provided in-box driver (Usbser.sys) for your Communications and CDC Control device. In Windows 10, the driver has been rewritten by using the that improves the overall stability of the driver. • Improved PnP and power management by the driver (such as, handling surprise removal). • Added power management features such as. In addition, Windows Store applications can now use the APIs provided by the new namespace that allow apps to talk to these devices.

Usbser.sys installation Load the Microsoft-provided in-box driver (Usbser.sys) for your Communications and CDC Control device. Windows 10 In Windows 10, a new INF, Usbser.inf, has been added to%Systemroot% Inf that loads Usbser.sys as the function device object (FDO) in the device stack. If your device belongs to the Communications and CDC Control device class, Usbser.sys is loaded automatically. The driver is loaded based on a compatible ID match similar to. USB Class_02 USB Class_02&SubClass_02 • If you want to load Usbser.sys automatically, set the class code to 02 and subclass code to 02 in the.

For more information, see USB communications device class (or USB CDC) Specification found on the. With this approach, you are not required to distribute INF files for your device because the system uses Usbser.inf. • 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.

• If your device specifies class and subclass codes to 02, and you want to load another driver instead of Usbser.sys, you have to write an INF that specifies the hardware ID of the device and the driver to install. For examples, look through the INF files included with and find devices similar to your device. For information about INF sections, see. Windows 8.1 and earlier versions In Windows 8.1 and earlier versions of the operating system, Usbser.sys is not automatically loaded when a USB-to-serial device is attached to a computer. To load the driver, you need to write an INF that references the modem INF (mdmcpq.inf) and includes [Install] and [Needs] sections. Those sections are required for instantiating the service, copying inbox binaries, and registering a device interface GUID that applications require to find the device and talk to it. That INF specifies 'Usbser' as a lower filter driver in a device stack.

[DDInstall.NT] include=mdmcpq.inf CopyFiles=FakeModemCopyFileSection [DDInstall.NT.Services] include=mdmcpq.inf AddService=usbser, 0x00000000, LowerFilter_Service_Inst [DDInstall.NT.HW] include=mdmcpq.inf AddReg=LowerFilterAddReg For more information, see. Configure selective suspend for Usbser.sys Starting in Windows 10, Usbser.sys supports. It allows the attached USB-to-serial device to enter a low power state when not in use, while the system remains in the S0 state. When communication with the device resumes, the device can leave the Suspend state and resume Working state. The feature is disabled by default and can be enabled and configured by setting the IdleUsbSelectiveSuspendPolicy entry under this registry key: HKEY_LOCAL_MACHINE SYSTEM CurrentControlSet Enum USB Device Parameters To configure power management features of Usbser.sys, you can set IdleUsbSelectiveSuspendPolicy to: • '0x00000001' Enters selective suspend when idle, that is, when there are no active data transfers to or from the device. • '0x00000000' Enters selective suspend only when there are no open handles to the device.

That entry can be added in one of two ways: • Write an INF that references the install INF and add the registry entry in the HW.AddReg section. • Describe the registry entry in an extended properties OS feature descriptor. Add a custom property section that sets the bPropertyName field to a Unicode string, 'IdleUsbSelectiveSuspendPolicy' and wPropertyNameLength to 62 bytes. Set the bPropertyData field to '0x00000001' or '0x00000000'.

The property values are stored as little-endian 32-bit integers. For more information, see. Develop Windows applications for a USB CDC device If you install Usbser.sys for the USB CDC device, here are the application programming model options: • Starting in Windows 10, a Windows store app can send requests to Usbser.sys by using the namespace.

It defines Windows Runtime classes that can use to communicate with a USB CDC device through a serial port or some abstraction of a serial port. The classes provide functionality to discover such serial device, read and write data, and control serial-specific properties for flow control, such as setting baud rate, signal states. • In Windows 8.1 and earlier versions, you can write a Windows desktop application that opens a virtual COM port and communicates with the device. For more information, see: Win32 programming model: • •.NET framework programming model: • Related topics.