The following *.inf file works for 32 bit windows (tried with both XP and 7). Inf file for vcp in 64 bit windows. This to usbser.sys similar to the 32 bit. Apr 18, 2012. Is missing to run this INF successfully forwin 7 32-bit and. For win7 32bit and 64bit not working.

1. Windows 7 32-bit

Windows 7 32-bit

I've made plenty of usbser.sys-based drivers that work on Windows 7. Here is an example: I think you don't need to have your 'DriverCopyFiles.nt' section and the references to it. Look at the driver I linked to above which shows how to refer to a 'FakeModemCopyFileSection' instead. Also, one thing that looks fishy about yours is that you chose to make 'usbser' by a string in the 'Strings' section. I really don't see the point of that and the whitespace near for the definition of that string is messed up. You can just write 'usbser' in the places where it is used.

Hello, I want to communicate with the EFM32 MCU over a USB/CDC connection. As a basis for my source I used the usbdcdc example for the DK3750. Boston dvb-4500. Everything works fine, but installing the USB virtual COM port driver (EFM32-Cdc.inf) on Win7 is a mess.

Right mouse on the file and klicking Install results in an error. If I use DeviceManager for installing the driver I get a big warning that the driver is not signed and shall not be installed. For me as developer no problem. But not usable for end-users. Does anybody know how I create an end-user friendly installer for the driver? Is it possible to sign the driver (.inf file)?

Best regards, Wolfgang. I too used the EFM32LG-DK3650 source, target is currently a STK3600 but will be my own hardware in about a weeks time when the PCBs come back from assembly. I can't install the USB virtual COM port CDC driver as it says it isn't compatible with Windows 7 64 bit! This IS a major problem for me as unlike Wolfgang I am not a Windows developer and have no idea as to what to do next.

Moving to another computer is NOT an option as all the machines I have access to are running Windows 7 64 bit. I've also run into this problem. After adapting the USB virtual serial port code from the sample project an0042efm32usbuartbootloader, Windows 7 could not find a device driver. Then after the Windows alert vanished Windows completely ignores the USB serial port ( even after disconnecting/reconnecting). After running a Ubuntu Linux VM in my Windows 7 machine the USB serial port communication works (with Linux, not Windows).

Does Energy Micro provide a generic Windows 7 USB virtual serial port driver? I am also working on a CDC project and having a signed driver installer would make the end-user's life much easier. I have used the Si Labs CP21xx USB to UART bridge chips in the past with much success. They provide a signed Win7 driver installer that can be easily executed by the end user. I want to use the USB functionality on the EM32 system to reduce component cost and increase flexibility. Energy Micro should be able to provide a similar solution for their USB enabled microcontrollers. In addition, SiLabs also provides the capability of letting customers use their VID for USB applications when the $2000 fee for a custom VID is not cost effective.

They also sublease PIDs. Again, this capability should be available from Energy Micro.