Although I got some problem installing the driver because I had tried 32 bit driver previously, Windows 7 x64 maintained it in the driver cache and would not attempt to use 64 bit driver. Many troubles trying to get it to use x64 driver. I noticed riffbox.sys is binary match to Windows 7 x64 usbser.sys, included with Windows. Buxtehude cantate domino pdf. 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. 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! Download philosophyz / mintjam version zip. 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 an0042_efm32_usb_uart_bootloader, 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. I'm using 64-bit Windows Embedded Standard 7 and am trying to install a USB driver for a device using a manufacturer-provided INF file. The INF file references usbser.sys, which is not found in the C:/Windows/System32/drivers folder. This driver has been installed on Windows XP and 32-bit Windows 7, but must be installed on 64-bit Windows Embedded Standard 7. Is there an alternate.sys file that replicates the functionality from usbser.sys, or is there is a way to have usbser.sys installed for Windows 7 Embedded? Or, another way around installing a driver from an INF file that references usbser.sys? Ok that is clearer.
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