Silicon Labs EFM32

Configuration:platform = siliconlabsefm32

Silicon Labs EFM32 Gecko 32-bit microcontroller (MCU) family includes devices that offer flash memory configurations up to 256 kB, 32 kB of RAM and CPU speeds up to 48 MHz. Based on the powerful ARM Cortex-M core, the Gecko family features innovative low energy techniques, short wake-up time from energy saving modes and a wide selection of peripherals, making it ideal for battery operated applications and other systems requiring high performance and low-energy consumption.

For more detailed information please visit vendor site.

Debugging

Debugging - “1-click” solution for debugging with a zero configuration.

Tools & Debug Probes

Supported debugging tools are listed in “Debug” column. For more detailed information, please scroll table by horizontal. You can switch between debugging Tools & Debug Probes using debug_tool option in “platformio.ini” (Project Configuration File).

Warning

You will need to install debug tool drivers depending on your system. Please click on compatible debug tool below for the further instructions.

On-Board Debug Tools

Boards listed below have on-board debug probe and ARE READY for debugging! You do not need to use/buy external debug probe.

Name MCU Frequency Flash RAM
EFM32GG-STK3700 Giant Gecko EFM32GG990F1024 48MHz 1MB 128KB
EFM32LG-STK3600 Leopard Gecko EFM32LG990F256 48MHz 256KB 32KB
EFM32WG-STK3800 Wonder Gecko EFM32WG990F256 48MHz 256KB 32KB
EFM32ZG-STK3200 Zero Gecko EFM32ZG222F32 24MHz 32KB 4KB
SLSTK3400A USB-enabled Happy Gecko EFM32HG322F64 25MHz 64KB 8KB
SLSTK3401A Pearl Gecko PG1 EFM32PG1B200F256GM48 40MHz 256KB 32KB
SLSTK3701A Giant Gecko S1 EFM32GG11B820F2048GL192 48MHz 2MB 512KB
Thunderboard Sense 2 Sensor-to-Cloud Advanced IoT EFR32MG12P432F1024 40MHz 1MB 256KB

Stable and upstream versions

You can switch between stable releases of Silicon Labs EFM32 development platform and the latest upstream version using platform option in “platformio.ini” (Project Configuration File) as described below.

Stable

; Latest stable version
[env:latest_stable]
platform = siliconlabsefm32
board = ...

; Custom stable version
[env:custom_stable]
platform = siliconlabsefm32@x.y.z
board = ...

Upstream

[env:upstream_develop]
platform = https://github.com/platformio/platform-siliconlabsefm32.git
board = ...

Packages

Name Description
framework-mbed Arm Mbed OS is a platform operating system designed for the internet of things
framework-zephyr Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures
framework-zephyr-canopennode canopennode Zephyr module
framework-zephyr-civetweb Zephyr module for CivetWeb Embedded C/C++ web server
framework-zephyr-cmsis Zephyr module for Software Interface Standard for Arm Cortex-based Microcontrollers
framework-zephyr-fatfs Zephyr module for FatFS filesystem
framework-zephyr-hal-silabs SiliconLabs HAL for Zephyr framework
framework-zephyr-hal-st Zephyr module for the official libraries provided by STMicroelectronics
framework-zephyr-libmetal Zephyr module for an abstraction layer across user-space Linux, baremetal, and RTOS environments
framework-zephyr-littlefs Zephyr module for littlefs filesystem
framework-zephyr-loramac-node Zephyr module for LoRaWAN endpoint stack implementation
framework-zephyr-lvgl Zephyr module for LittlevGL - an Open-source Embedded GUI Library
framework-zephyr-mbedtls Zephyr module for the mbed TLS library
framework-zephyr-mcuboot Zephyr module for MCUboot - a secure bootloader for 32-bit MCUs
framework-zephyr-mcumgr Zephyr module for mcumgr management library for 32-bit MCUs
framework-zephyr-mipi-sys-t Zephyr module for MIPI System Software Trace
framework-zephyr-open-amp Zephyr module for Open Asymmetric Multi Processing (OpenAMP) framework
framework-zephyr-openthread Zephyr module for OpenThread - an open-source implementation of the Thread networking protocol
framework-zephyr-segger Zephyr module for the Segger RTT library
framework-zephyr-sof Zephyr module for Sound Open Firmware
framework-zephyr-tfm-mcuboot Zephyr module for MCUboot - a secure bootloader for 32-bit MCUs (TFM Dependency)
framework-zephyr-tinycbor Zephyr module for Concise Binary Object Representation Library
framework-zephyr-tinycrypt The TinyCrypt Library provides an implementation for constrained devices of a minimal set of standard cryptography primitives for Zephyr framework
framework-zephyr-trusted-firmware-m Zephyr module for Trusted Firmware M - a reference implementation of secure world software for ARMv8-M
tool-cmake CMake is an open-source, cross-platform family of tools designed to build, test and package software
tool-dtc Device tree compiler
tool-gperf GNU gperf is a perfect hash function generator
tool-jlink Software and Documentation Pack for SEGGER J-Link debug probes
tool-ninja Ninja is a small build system with a focus on speed
toolchain-gccarmnoneeabi GNU toolchain for Arm Cortex-M and Cortex-R processors

Warning

Linux Users:

Windows Users:

Please check that you have a correctly installed USB driver from board manufacturer

Frameworks

Name Description
Mbed Arm Mbed OS is an open source embedded operating system designed specifically for the ‘things’ in the Internet of Things. It includes all the features you need to develop a connected product based on an Arm Cortex-M microcontroller, including security, connectivity, an RTOS and drivers for sensors and I/O devices
Zephyr RTOS The Zephyr Project is a scalable real-time operating system (RTOS) supporting multiple hardware architectures, optimized for resource constrained devices, and built with safety and security in mind

Boards

Note

Silicon Labs

Name Debug MCU Frequency Flash RAM
EFM32GG-STK3700 Giant Gecko On-board EFM32GG990F1024 48MHz 1MB 128KB
EFM32LG-STK3600 Leopard Gecko On-board EFM32LG990F256 48MHz 256KB 32KB
EFM32WG-STK3800 Wonder Gecko On-board EFM32WG990F256 48MHz 256KB 32KB
EFM32ZG-STK3200 Zero Gecko On-board EFM32ZG222F32 24MHz 32KB 4KB
SLSTK3400A USB-enabled Happy Gecko On-board EFM32HG322F64 25MHz 64KB 8KB
SLSTK3401A Pearl Gecko PG1 On-board EFM32PG1B200F256GM48 40MHz 256KB 32KB
SLSTK3701A Giant Gecko S1 On-board EFM32GG11B820F2048GL192 48MHz 2MB 512KB
Thunderboard Sense 2 Sensor-to-Cloud Advanced IoT On-board EFR32MG12P432F1024 40MHz 1MB 256KB