This allows developers to use legacy applications with new products using the same COM port interface as before, with few hardware and software modifications. A subset of the USB Communication DeviceClass (CDC) can be used to emulate a serial port providing a virtual COM port UART interface. This can be an issue for the developer who needs a COM port for communication between a peripheral and host PC. As a result, many modern computers no longer support RS-232 serial COM ports, opting for the slimmer USB alternative. Introduction USB revolutionized the PC peripheral space by making a very simple plug-and-play interface for users. Implementing USB communication device class (CDC) on EFM32 MCUs 1. (USB CDC)¶ A virtual serial port which can be used for communications between a computer and the. Silicon Labs » Wiki » Silicon Labs Firmware. I want to communicate with the EFM32 MCU over a USB/CDC.
2 USBHID example program shows how to configure and. 2 USB HID (Human Interface Device) Example. You can use this serial port as an extra serial port or as a debug solution. The USBSerial interface is used to emulate a serial port over USB.
