Silicon Labs » Wiki » Silicon Labs Firmware. Silicon Labs. Silicon Labs a leading provider of microcontroller, sensing and wireless connectivity solutions for the Internet of Things (IoT). Summary; Code; Wiki; Community; Silicon Labs Firmware. Table of Contents. Key Features; Supported Kits; Firmware Upgrade Instructions; The kit. Lufa-efm32 - LUFA port to Silabs EFM32. Many modern computers no longer support RS-232 serial COM ports, opting for the slimmer USB. 1 USB CDC Virtual COM Port.

USB revolutionized the PC peripheral space by making a very simple plug-and-play interface for users. As a result, many modern computers no longer support RS-232 serial COM ports, opting for the slimmer USB alternative. This can be an issue for the developer who needs a COM port for communication between a peripheral and host PC.

A subset of the USB Communication DeviceClass (CDC) can be used to emulate a serial port providing a virtual COM port UART interface. This allows developers to use legacy applications with new products using the same COM port interface as before, with few hardware and software modifications.

The CDC firmware implemented with this application note includes the following features: • Emulates a serial COM port on PC that supports the CDC Abstract Control Model (ACM). • Provides an abstract communication interface for data transfers between the host and the device. • Handles standard Chapter 9 USB device requests. • Handles CDC-specific requests from USB host. • Notifies the USB host of status using an interrupt endpoint. • Provides data communication with the USB host using a bulk endpoint.

• The following baud rates are supported: 600, 1200, 2400, 4800, 9600, 14400, 19200, 38400, 57600, 76800, 115200 and 230400 bps. UART State Bitmap Bit Position Field Description 15:7 Reserved (future use).

6 bOverRun Received data has been discarded due to overrun in the device. 5 bParity A parity error occurred. 4 bFraming A framing error occurred. 3 bRingSignal State of ring signal detection of the device. 2 bBreak State of break detection mechanism of the device. 1 bTxCarrier State of transmission carrier. This signal corresponds to V.24 signal 106 and RS232 signal DSR.

0 bRxCarrier State of receiver carrier detection mechanism of device. This signal corresponds to V.24 signal 109 and RS232 signal DCD 3.3. Download Lazerhawk Redline Raritan.

Endpoint Configuration. Montgomery Ward Wood Lathe Manuals. The USB CDC firmware example is based on the LUFA open-source project. LUFA is an open-source complete USB stack released under the permissive MIT License.

It includes support for many USB classes, both for USB Hosts and USB Devices. For USB Devices, the LUFA stack includes support for Audio Class, CDC Class, HID Class, Mass Storage Class, MIDI Class, and RNDIS Class.

More information about the LUFA project can be found on the official website: • The USB CDC project contains a prebuilt LUFA USB stack documentation which locate. LUFA Documentation html. Double click on the index.html, the documentations shows in your default browser. To install the driver on Windows 7: • Build the project and download firmware to the EFM32GG DK3750 board. • Connect the USB cable between the Device MCU plugin board USB connector and the PC. • Open Device Manager.

The device will appear under Other devices as the EFM32GG CDC Device. • Right-click on the EFM32GG CDC Device and select Update Driver Software. • Select Browse my computer for driver software. • Select Browse my computer for driver software. • Windows will display a warning. Select Install this driversoftware anyway. • When the driver finishes installing,Windows will report the installation results.

• Open Device Manager and observethe device. It will now appear under Ports (COM & LPT) with an assigned COM port number.