Look no further, you have efm32loader which can run in CLI or GUI mode (if any arguments are provided).CLI mode usage: UART: efm32loader.exe uart USB: efm32loader.exe usbRegarding hardware, all you need is a USB-to-UART converter connected to your computer. However, if you want the capability of uploading a program through your own application a command-line utility is what you need. The bootloader uses the protocol to transfer data and, as referred on the application note, TeraTerm, which supports that kind of data transfers, may be used. Efm32 Usb Cdc Serial Port DriverĪre you looking for a CLI or GUI utility to upload programs to EFM32 microcontrollers through the factory-programmed bootloader? Look no further.A great feature of EFM32 microcontrollers, by Silicons Labs, is the factory-programmed UART bootloader that may be used to upload programs into the microcontroller instead of using a commercial programmer. If a new firmware revision is available, click the 'download' link to download the upgrade file to your computer.After the download finishes, click the 'install' link to install the new firmware on your kit.After the upgrade completes, the kit should show up as a USB drive with the same name as your kit. Select the kit you want to upgrade the firmware on. You might need to refresh the list manually. Upgrade the FirmwareConnect your kit, and find it in the list of detected hardware. Upgrade Simplicity StudioMake sure you have installed the most recent updates by clicking the 'Update Software' button, as indicated with '1.' In the image below. When asked about which features to install, select EFM32:3. Install Simplicity StudioInstall using the downloaded file and start Simplicity Studio. Efm32 Usb Cdc Serial Port Device Driverĭownload Simplicity StudioIf you don't have Simplicity Studio 3 installed already, download it from.If you are unsure of which version you currently have installed, see.Simplicity Studio is available for Windows, Linux and Mac OS X.If you already have Simplicity Studio 3 installed, proceed to step 3.This is taken care of in Simplicity Studio, but if you are using other tools please ensure that you are using a recent release fromFirmware Upgrade Instructions 1.

SEGGER J-Link VersionIf you are using the SEGGER J-Link driver and/or tools, please ensure you are using the latest version to avoid problems.