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

PIO Unified Debugger - “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
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 = [email protected]
board = ...

Upstream

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

Packages

Name Description
framework-mbed mbed Framework
framework-zephyr Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.
framework-zephyr-hal-silabs SiliconLabs HAL for Zephyr framework
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 SEGGER J-Link Software and Documentation Pack
tool-ninja Ninja is a small build system with a focus on speed.
toolchain-gccarmnoneeabi gcc-arm-embedded

Warning

Linux Users:

Windows Users:

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

Frameworks

Name Description
Mbed The mbed framework The mbed SDK has been designed to provide enough hardware abstraction to be intuitive and concise, yet powerful enough to build complex projects. It is built on the low-level ARM CMSIS APIs, allowing you to code down to the metal if needed. In addition to RTOS, USB and Networking libraries, a cookbook of hundreds of reusable peripheral and module libraries have been built on top of the SDK by the mbed Developer Community.
Zephyr 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
Thunderboard Sense 2 Sensor-to-Cloud Advanced IoT On-board EFR32MG12P432F1024 40MHz 1MB 256KB