This might be helpful for everyone having this kind of problems: installing the CDC (aka virtual COM) drivers under Windows 7 and 64bit. In the designated folder, a folder labeled USB_CDC_Driver_TH-D74_V100 will be created Extract the downloaded file USB_CDC_Driver_TH-D74_V100.zip into a designated folder. ATTENTION: Do not connect the device to a PC before installing the virtual COM port driver. For D2XX Direct drivers, please click here Installing the virtual COM port driver. Application software can access the USB device in the This page contains the VCP drivers currently available for FTDI devices.

Do you mean, that MQX will supply two virtual com ports? Then, your MQX has to setting up a Virtual COM Port Drivers Virtual COM port (VCP) drivers cause the USB device to appear as an additional COM port available to the PC. Hello, I'm a little confused with naming. you may have to install driver to get device recognized as com port you can get it from st site if not installed the device is listed with question or exclamation mark on device manager note that you cannot send until device get connected to host! not sure that CubeMX CDC_Transmit_FS is checking for this also instead of delay to resend you shall check the CDC class data TXSstate is 0 mean tx is over All features Virtual COM port driver installation package for Windows ® operating systems: 98SE, 2000, XP, Vista ®, 7, and 8. Starting from Windows ® 10, the STSW-STM32102 driver is no more adequate and the usage of the native inbox driver is recommended. For Windows 10 Users - The Windows 10 native CDC driver included in the Windows 10 operating system supports Zebra scanners and should be used to provide CDC functionality in the Windows 10 environment Your scanner should now show up in Device Manager with a COM port number CDC driver version provides functionality on Windows XP but will prompt with a warning message as Microsoft no longer certifies drivers for use on the Windows XP operating system. Download ONE of the following files based on the architecture of your Windows computer from USB CDC Driver for Windows page: - 64 Bit COM Emulation Drivers - 32 Bit COM Emulation Drivers 2. If I use DeviceManager for installing the driver I get a big warning that the driver is not signed and shall not be installed. Right mouse on the file and klicking Install results in an error.

Supports devices that are compliant with the USB CDC/ACM device class specification Everything works fine, but installing the USB virtual COM port driver (EFM32-Cdc.inf) on Win7 is a mess. Optionally exposes a static COM port to support legacy applications, see FAQ section. Exposes a virtual COM port with dynamic plug-and-play behavior. WDF (KMDF) compliant Windows USB device driver.

Efm32 Usb Cdc Serial Port