Silicon Labs EFM32¶

Registry:: https://registry.platformio.org/platforms/platformio/siliconlabsefm32
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.

Examples ¶

Examples are listed from Silicon Labs EFM32 development platform repository:

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, NOT recommended
; Pin the version as shown below
[env:latest_stable]
platform = siliconlabsefm32
board = ...

; Specific 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
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:

Install “udev” rules 99-platformio-udev.rules

Raspberry Pi users, please read this article Enable serial port on Raspberry Pi.

Windows Users:

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

Frameworks ¶

Name	Description
Mbed	Arm Mbed OS is a platform operating system designed for the internet of things
Zephyr	Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures

Boards ¶

Note

You can list pre-configured boards by pio boards command
For more detailed board information please scroll the tables below by horizontally.

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