EFR32xG26 Dev Kit (xG26-DK2608A)

Overview

The EFR32xG26-DK2608A Dev Kit is a compact, feature-packed development platform. The development platform includes a broad range of sensors, various peripheral devices, and a Qwiic connector, allowing you to explore the endless world of Sparkfun expansion hardware. It provides the fastest path to develop and prototype wireless IoT products.

Hardware

EFR32MG26B510F3200IM68 SoC
CPU core: 32-bit ARM® Cortex®-M33 with FPU
Flash memory: 3200 kB
RAM: 512 kB
Transmit power: up to +10 dBm
Operation frequency: 2.4 GHz
Crystals for LFXO (32.768 kHz) and HFXO (39 MHz) on the board.
Kit features:
- Silicon Labs Si7021 relative humidity and temperature sensor
- Silicon Labs Si7210 hall effect sensor
- TDK InvenSense ICM-40627 6-axis inertial sensor
- Two ICS-43434 MEMS microphones
- Bosch Sensortec BMP384 barometric pressure sensor
- Ambient light sensor (VEML6035)
- Macronix ultra-low-power 64 Mbit SPI flash (MX25R6435F)
- RGB LED and two push buttons
- U.FL connector and precise external voltage reference for ADC measurements
- Power enable signals and isolation switches for ultra-low-power operation
- On-board SEGGER J-Link debugger (USB virtual COM port and Packet Trace Interface)
- Mini Simplicity connector for access to energy profiling and advanced wireless network debugging
- Breakout pads for GPIO access and connection to external hardware
- Qwiic connector for connecting external hardware from the Qwiic Connect System
- Reset button
- Automatic switchover between USB and battery power
- CR2032 coin cell holder and external battery connector

For more information about the EFR32MG26 SoC and DK2608A Dev Kit, refer to these documents:

Supported Features

The xg26_dk2608a board supports the hardware features listed below.

on-chip / on-board: Feature integrated in the SoC / present on the board.
2 / 2: Number of instances that are enabled / disabled.
Click on the label to see the first instance of this feature in the board/SoC DTS files.
vnd,foo: Compatible string for the Devicetree binding matching the feature.
Click on the link to view the binding documentation.

`xg26_dk2608a/efr32mg26b510f3200im68` target

Type	Location	Description	Compatible
CPU	on-chip	ARM Cortex-M33 CPU1	`arm,cortex-m33`
ADC	on-chip	Silicon Labs Series 2 IADC1	`silabs,iadc`
Bluetooth	on-chip	Silicon Labs Series 2 Bluetooth HCI1	`silabs,bt-hci-efr32`
Clock control	on-chip	Silicon Labs Series 2 CMU1	`silabs,series-clock`
	on-chip	Silicon Labs Series 2 HFRCODPLL1	`silabs,series2-hfrcodpll`
	on-chip	Generic fixed-rate clock provider3	`fixed-clock`
	on-chip	Silicon Labs Series 2 LFXO1	`silabs,series2-lfxo`
	on-chip	Silicon Labs Series 2 LFRCO1	`silabs,series2-lfrco`
	on-chip	Silicon Labs Series 2 HFRCOEM231	`silabs,series2-hfrcoem23`
	on-chip	Silicon Labs Series 2 HFXO1	`silabs,hfxo`
	on-chip	Generic fixed factor clock provider22	`fixed-factor-clock`
Comparator	on-chip	Silicon Labs Series 2 ACMP2	`silabs,acmp`
Counter	on-chip	Silicon Labs Series 2 BURTC1	`silabs,burtc-counter`
	on-chip	Silicon Labs TIMER Counter10	`silabs,timer-counter`
	on-chip	Silicon Labs PROTIMER counter1	`silabs,protimer`
CRC	on-chip	Silabs General Purpose CRC1	`silabs,gpcrc`
Cryptographic accelerator	on-chip	Silicon Labs Series 2 SE Mailbox1	`silabs,gecko-semailbox`
DAC	on-chip	Silicon Labs Series 2 VDAC 2	`silabs,vdac`
Debug	on-chip	Silicon Labs Packet Trace Interface1	`silabs,pti`
Debug	on-chip	ARMv8 instrumentation trace macrocell1	`arm,armv8m-itm`
DMA	on-chip	Silicon Labs Series 2 LDMA1	`silabs,ldma`
Flash controller	on-chip	Silicon Labs Series 2 MSC1	`silabs,series2-flash-controller`
GPIO & Headers	on-chip	Silicon Labs Series 2 GPIO Peripheral1	`silabs,gpio`
	on-chip	Silicon Labs Series 2 GPIO Port4	`silabs,gpio-port`
	on-board	STEMMA QT is a 4-pin JST-SH connector for I2C devices1	`stemma-qt-connector`
	on-board	Silicon Labs Kit Expansion Header1	`silabs,exp-header`
I2C	on-chip	Silicon Labs Series 2 I2C1 3	`silabs,i2c`
Input	on-board	Group of GPIO-bound input keys1	`gpio-keys`
Interrupt controller	on-chip	ARMv8-M NVIC (Nested Vectored Interrupt Controller)1	`arm,v8m-nvic`
LED	on-board	Group of GPIO-controlled LEDs1	`gpio-leds`
LED	on-board	Group of PWM-controlled LEDs1	`pwm-leds`
MMU / MPU	on-chip	ARMv8-M MPU (Memory Protection Unit)1	`arm,armv8m-mpu`
MTD	on-chip	Flash node1	`soc-nv-flash`
MTD	on-board	Properties supporting Zephyr spi-nor flash driver (over the Zephyr SPI API) control of serial flash memories using the standard M25P80-based command set1	`jedec,spi-nor`
Networking	on-chip	Silicon Labs Series 2 Radio Interface1	`silabs,series2-radio`
Pin control	on-chip	Silicon Labs Series 2 DBUS Pin Controller1	`silabs,dbus-pinctrl`
PWM	on-chip	Silicon Labs TIMER PWM1 9	`silabs,timer-pwm`
PWM	on-chip	Silicon Labs LETIMER PWM1	`silabs,letimer-pwm`
Regulator	on-chip	Silicon Labs Series 2 DC-DC converter1	`silabs,series2-dcdc`
Regulator	on-board	Fixed voltage regulators5	`regulator-fixed`
Retained memory	on-chip	Silicon Labs Series 2 BURAM1	`silabs,buram`
RTC	on-chip	Silicon Labs Series 2 SYSRTC1	`silabs,sysrtc`
Sensors	on-board	Silicon Labs Si7006/13/20/21 RHT Sensor1	`silabs,si7006`
	on-board	Si7210 hall effect magnetic position and temperature sensor1	`silabs,si7210`
	on-board	Vishay VEML7700 High Accuracy Ambient Light Sensor With I2C Interface1	`vishay,veml7700`
Serial controller	on-chip	Silicon Labs Series 2 USART1 2	`silabs,usart-uart`
SPI	on-chip	Silicon Labs Series 2 EUSART 1 3	`silabs,eusart-spi`
SRAM	on-chip	Generic on-chip SRAM1	`mmio-sram`
Timer	on-chip	ARMv8-M System Tick1	`arm,armv8m-systick`
	on-chip	Silicon Labs TIMER1 9	`silabs,series2-timer`
	on-chip	Silicon Labs LETIMER1	`silabs,series2-letimer`
Watchdog	on-chip	Silicon Labs Series 0-2 WDOG1 1	`silabs,gecko-wdog`

System Clock

The EFR32MG26 SoC is configured to use the HFRCODPLL oscillator at 78 MHz as the system clock, locked to the 39 MHz crystal oscillator on the board.

Serial Port

The EFR32MG26 SoC has 3 USARTs and 4 EUSARTs. USART0 is connected to the board controller and is used for the console.

Programming and Debugging

The xg26_dk2608a board supports the runners and associated west commands listed below.

	flash	debug	rtt	debugserver	reset	attach
jlink	✅ (default)	✅ (default)	✅	✅	✅	✅
silabs_commander	✅

Flashing

Connect the DK2608A Dev Kit to your host computer using the USB port.

Here is an example for the Hello World application.

# From the root of the zephyr repository
west build -b xg26_dk2608a samples/hello_world
west flash

Open a serial terminal (minicom, putty, etc.) with the following settings:

Speed: 115200
Data: 8 bits
Parity: None
Stop bits: 1

Reset the board and you should see the following message in the terminal:

Hello World! xg26_dk2608a

Bluetooth

To use Bluetooth functionality, run the command below to retrieve necessary binary blobs from the Silicon Labs HAL repository.

west blobs fetch hal_silabs

Then build the Zephyr kernel and a Bluetooth sample with the following command. The Observer sample application is used in this example.

# From the root of the zephyr repository
west build -b xg26_dk2608a samples/bluetooth/observer