EFR32xG26 2.4 GHz +10 dBm Radio Board

Overview

The EFR32xG26 2.4 GHz +10 dBm Radio Board is a plug-in board for the Wireless Starter Kit Mainboard (BRD4001A) and the Wireless Pro Kit Mainboard (BRD4002A) based on the EFR32MG26 SoC. It supports the development of 2.4 GHz Wireless IoT devices for protocols including Bluetooth LE, Bluetooth Mesh, Zigbee, and Matter.

See Radio Boards for more information about the Wireless Mainboard platform.

Hardware

EFR32MG26B510F3200IM68 SoC
CPU core: ARM Cortex®-M33 with FPU, DSP and TrustZone
Memory: 3200 kB Flash, 512 kB RAM
Transmit power: up to +10 dBm
Operation frequency: 2.4 GHz
Crystals for LFXO (32.768 kHz) and HFXO (39 MHz) on the board
8 Mbit SPI NOR Flash

For more information about the EFR32MG26 SoC and radio board, refer to these documents:

Supported Features

The xg26_rb4120a 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_rb4120a/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`
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`
Display	on-board	Sharp LS0XX memory display controller1	`sharp,ls0xx`
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	Silicon Labs Kit Expansion Header1	`silabs,exp-header`
I2C	on-chip	Silabs I2C node1 3	`silabs,i2c`
Input	on-board	Group of GPIO-bound input keys1	`gpio-keys`
Input	on-board	Input driver for ADC attached resistor ladder buttons1	`adc-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`
	on-board	Fixed partitions of a flash (or other non-volatile storage) memory1	`fixed-partitions`
	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 regulators1	`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`
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 Series 2 BURTC1	`silabs,gecko-burtc`
	on-chip	Silicon Labs TIMER1 9	`silabs,series2-timer`
	on-chip	Silicon Labs LETIMER1	`silabs,series2-letimer`
Watchdog	on-chip	Silicon Labs Series 1-2 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_rb4120a board supports the runners and associated west commands listed below.

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

Flashing

Connect the board 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_rb4120a 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_rb4120a

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_rb4120a samples/bluetooth/observer