EFR32BG22 Thunderboard (SLTB010A)

Board Overview

EFR32BG22 Thunderboard (SLTB010A)

Name:

sltb010a

Vendor:

Silicon Laboratories

Architecture:

arm

SoC:

efr32bg22c224f512im40

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SLTB010A is a development kit based on the EFR32BG22 SoC. Early revisions of the kit (A00 and A01) use a slightly different PCB (BRD4184A) from later revisions (BRD4184B).

Hardware

• EFR32BG22 Blue Gecko Wireless SoC with upto 76.8 MHz operating frequency

• ARM® Cortex® M33 core with 32 kB RAM and 512 kB Flash

• Macronix ultra low power 8-Mbit SPI flash (MX25R8035F)

• 2.4 GHz ceramic antenna for wireless transmission

• Silicon Labs Si7021 relative humidity and temperature sensor

• Silicon Labs Si1133 UV index and ambient light sensor (EFR32BG22-BRD4184A)

• Vishay VEML6035 ambient light sensor (EFR32BG22-BRD4184B)

• Silicon Labs Si7210 hall effect sensor

• TDK InvenSense ICM-20648 6-axis inertial sensor

• Two Knowles SPK0641HT4H-1 MEMS microphones with PDM output (EFR32BG22-BRD4184B)

• One LED and one push button

• Power enable signals and isolation switches for ultra low power operation

• On-board SEGGER J-Link debugger for easy programming and debugging, which includes a USB virtual COM port and Packet Trace Interface (PTI)

• Mini Simplicity connector for access to energy profiling and advanced wireless network debugging

• Breakout pads for GPIO access and connection to external hardware

• Reset button

• Automatic switch-over between USB and battery power

• CR2032 coin cell holder and external battery connector

For more information about the EFR32BG SoC and Thunderboard EFR32BG22 board:

• EFR32BG22 Website

• EFR32BG22 Datasheet

• EFR32xG22 Reference Manual

• Thunderboard EFR32BG22 Website

• EFR32BG22-BRD4184A User Guide

• EFR32BG22-BRD4184B User Guide

• EFR32BG22-BRD4184A Schematics

• EFR32BG22-BRD4184B Schematics

Supported Features

The sltb010a 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.

sltb010a/efr32bg22c224f512im40 target

Type	Location	Description	Compatible
CPU	on-chip	ARM Cortex-M33 CPU1	arm,cortex-m33
ADC	on-chip	Silicon Labs Gecko Family IADC1	silabs,gecko-iadc
Bluetooth	on-chip	Bluetooth HCI on Silabs boards1	silabs,bt-hci-efr32
Clock control	on-chip	Silicon Labs Series 2+ clock control node1	silabs,series-clock
	on-chip	Generic fixed-rate clock provider3	fixed-clock
	on-chip	Generic fixed-rate clock provider1	silabs,hfxo
	on-chip	Silicon Labs LFXO peripheral (low-frequency crystal oscillator)1	silabs,series2-lfxo
	on-chip	Silicon Labs HFRCODPLL peripheral (high-frequency RC oscillator with digital phase-locked loop)1	silabs,series2-hfrcodpll
	on-chip	Silicon Labs LFRCO peripheral (low-frequency RC oscillator)1	silabs,series2-lfrco
	on-chip	Generic fixed factor clock provider15	fixed-factor-clock
DMA	on-chip	Silabs LDMA controller1	silabs,ldma
Flash controller	on-chip	Silicon Labs Series 2 flash controller1	silabs,series2-flash-controller
GPIO & Headers	on-chip	SiLabs Gecko GPIO1	silabs,gecko-gpio
	on-chip	SiLabs Gecko GPIO Port3 1	silabs,gecko-gpio-port
I2C	on-chip	Silabs Gecko I2C1 1	silabs,gecko-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
Miscellaneous	on-board	GPIO Wake Up Trigger for EFR32MG241	silabs,gecko-wake-up-trigger
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	The Silabs pin controller is a singleton node responsible for controlling pin function selection and pin properties1	silabs,dbus-pinctrl
Regulator	on-chip	Silicon Labs Series 2 DC-DC converter1	silabs,series2-dcdc
	on-board	Fixed voltage regulators3	regulator-fixed
RNG	on-chip	GECKO TRNG (True Random Number Generator)1	silabs,gecko-trng
RTC	on-chip	Silabs Gecko Sleep Timer (Real-Time Counter)1	silabs,gecko-stimer
Sensors	on-board	Si7210 hall effect magnetic position and temperature sensor1	silabs,si7210
Serial controller	on-chip	Silabs USART UART1	silabs,usart-uart
SPI	on-chip	Silabs USART SPI1	silabs,usart-spi
SRAM	on-chip	Generic on-chip SRAM description1	mmio-sram
Timer	on-chip	ARMv8-M System Tick1	arm,armv8m-systick
	on-chip	SiLabs Gecko BURTC timer1	silabs,gecko-burtc
Watchdog	on-chip	Silicon Labs Gecko Family Watchdog driver1	silabs,gecko-wdog

sltb010a/efr32bg22c224f512im40@2 target

Type	Location	Description	Compatible
CPU	on-chip	ARM Cortex-M33 CPU1	arm,cortex-m33
ADC	on-chip	Silicon Labs Gecko Family IADC1	silabs,gecko-iadc
Bluetooth	on-chip	Bluetooth HCI on Silabs boards1	silabs,bt-hci-efr32
Clock control	on-chip	Silicon Labs Series 2+ clock control node1	silabs,series-clock
	on-chip	Generic fixed-rate clock provider3	fixed-clock
	on-chip	Generic fixed-rate clock provider1	silabs,hfxo
	on-chip	Silicon Labs LFXO peripheral (low-frequency crystal oscillator)1	silabs,series2-lfxo
	on-chip	Silicon Labs HFRCODPLL peripheral (high-frequency RC oscillator with digital phase-locked loop)1	silabs,series2-hfrcodpll
	on-chip	Silicon Labs LFRCO peripheral (low-frequency RC oscillator)1	silabs,series2-lfrco
	on-chip	Generic fixed factor clock provider15	fixed-factor-clock
DMA	on-chip	Silabs LDMA controller1	silabs,ldma
Flash controller	on-chip	Silicon Labs Series 2 flash controller1	silabs,series2-flash-controller
GPIO & Headers	on-chip	SiLabs Gecko GPIO1	silabs,gecko-gpio
	on-chip	SiLabs Gecko GPIO Port3 1	silabs,gecko-gpio-port
I2C	on-chip	Silabs Gecko I2C1 1	silabs,gecko-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
Miscellaneous	on-board	GPIO Wake Up Trigger for EFR32MG241	silabs,gecko-wake-up-trigger
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	The Silabs pin controller is a singleton node responsible for controlling pin function selection and pin properties1	silabs,dbus-pinctrl
Regulator	on-chip	Silicon Labs Series 2 DC-DC converter1	silabs,series2-dcdc
	on-board	Fixed voltage regulators3	regulator-fixed
RNG	on-chip	GECKO TRNG (True Random Number Generator)1	silabs,gecko-trng
RTC	on-chip	Silabs Gecko Sleep Timer (Real-Time Counter)1	silabs,gecko-stimer
Sensors	on-board	Si7210 hall effect magnetic position and temperature sensor1	silabs,si7210
Serial controller	on-chip	Silabs USART UART1	silabs,usart-uart
SPI	on-chip	Silabs USART SPI1	silabs,usart-spi
SRAM	on-chip	Generic on-chip SRAM description1	mmio-sram
Timer	on-chip	ARMv8-M System Tick1	arm,armv8m-systick
	on-chip	SiLabs Gecko BURTC timer1	silabs,gecko-burtc
Watchdog	on-chip	Silicon Labs Gecko Family Watchdog driver1	silabs,gecko-wdog

Connections and IOs

The EFR32BG22 SoC has four gpio controllers (PORTA, PORTB, PORTC and PORTD).

There are two variants of this board, “A” and “B”. Please take a look at your PCB, to determine which one you have, as the GPIO pin bindings vary between those two.

BRD4184A (SLTB010A revision A00 and A01):

Pin	Function	Usage
PB0	GPIO	LED0 (YELLOW)
PB1	GPIO	SW0 Push Button PB0
PA5	UART_TX	UART TX Console VCOM_TX US1_TX #1
PA6	UART_RX	UART RX Console VCOM_RX US1_RX #1

BRD4184B (SLTB010A revision A02 and newer):

Pin	Function	Usage
PA4	GPIO	LED0 (YELLOW)
PB3	GPIO	SW0 Push Button PB0
PA5	UART_TX	UART TX Console VCOM_TX US1_TX #1
PA6	UART_RX	UART RX Console VCOM_RX US1_RX #1

System Clock

The EFR32BG22 SoC is configured to use the 38.4 MHz external oscillator on the board.

Programming and Debugging

Flashing an application

Connect your device to your host computer using the USB port. The sample application Hello World is used for this example. Build the Zephyr kernel and application, then flash it to the device:

BRD4184A:

# From the root of the zephyr repository
west build -b sltb010a@0 samples/hello_world
west flash

BRD4184B:

# From the root of the zephyr repository
west build -b sltb010a@2 samples/hello_world
west flash

Note

west flash requires SEGGER J-Link software to be installed on you host computer.

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 be able to see on the corresponding Serial Port the following message:

Hello World! sltb010a

Bluetooth

To use the BLE function, run the command below to retrieve necessary binary blobs from the SiLabs 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.

BRD4184A:

# From the root of the zephyr repository
west build -b sltb010a@0 samples/bluetooth/observer

BRD4184B:

# From the root of the zephyr repository
west build -b sltb010a@2 samples/bluetooth/observer