BGM220 Explorer Kit (BGM220-EK4314A)

Board Overview

BGM220 Explorer Kit (BGM220-EK4314A)

Name:

bgm220_ek4314a

Vendor:

Silicon Laboratories

Architecture:

arm

SoC:

bgm220pc22hna

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Overview

The BGM220 Explorer Kit is a small form factor development and evaluation platform for the BGM220P Bluetooth Module.

The kit features a USB interface, an on-board SEGGER J-Link debugger, one user-LED and button, and support for hardware add-on boards via a mikroBus socket and a Qwiic connector.

Hardware

• BGM220PC22HNA module

  • EFR32BG22 SoC

  • Crystal for HFXO (38.4 MHz)

  • Crystal for LFXO (32768 Hz)

• CPU core: ARM Cortex®-M33 with FPU

• Flash memory: 512 kB

• RAM: 32 kB

• Transmit power: up to +8 dBm

• Operation frequency: 2.4 GHz

For more information about the BGM220P module and Explorer Kit, refer to these documents:

• BGM220 Website

• BGM220P Datasheet

• EFR32xG22 Reference Manual

• BGM220 Explorer Kit User’s Guide

Supported Features

The bgm220_ek4314a 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.

bgm220_ek4314a/bgm220pc22hna target

Type	Location	Description	Compatible
CPU	on-chip	ARM Cortex-M33 CPU1	arm,cortex-m33
ADC	on-chip	Silicon Labs Series 2 IADC1	silabs,gecko-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	Generic fixed-rate clock provider3	fixed-clock
	on-chip	Silicon Labs Series 2 HFXO1	silabs,hfxo
	on-chip	Silicon Labs Series 2 LFXO1	silabs,series2-lfxo
	on-chip	Silicon Labs Series 2 HFRCODPLL1	silabs,series2-hfrcodpll
	on-chip	Silicon Labs Series 2 LFRCO1	silabs,series2-lfrco
	on-chip	Generic fixed factor clock provider15	fixed-factor-clock
Debug	on-chip	Silicon Labs Packet Trace Interface1	silabs,pti
	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	GPIO pins exposed on Mikro BUS headers1	mikro-bus
	on-board	STEMMA QT is a 4-pin JST-SH connector for I2C devices1	stemma-qt-connector
I2C	on-chip	Silabs I2C node2	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
	on-board	Group of PWM-controlled LEDs1	pwm-leds
MTD	on-chip	Flash node1	soc-nv-flash
	on-board	Fixed partitions of a flash (or other non-volatile storage) memory1	fixed-partitions
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 PWM2 3	silabs,timer-pwm
	on-chip	Silicon Labs LETIMER PWM1	silabs,letimer-pwm
Regulator	on-chip	Silicon Labs Series 2 DC-DC converter1	silabs,series2-dcdc
RNG	on-chip	GECKO TRNG (True Random Number Generator)1	silabs,gecko-trng
RTC	on-chip	Silicon Labs Series 2 Sleeptimer1	silabs,gecko-stimer
Serial controller	on-chip	Silicon Labs Series 2 USART1	silabs,usart-uart
	on-chip	Silicon Labs Series 2 EUSART 1	silabs,eusart-uart
SPI	on-chip	Silicon Labs Series 2 USART1	silabs,usart-spi
SRAM	on-chip	Generic on-chip SRAM1	mmio-sram
Timer	on-chip	ARMv8-M System Tick1	arm,armv8m-systick
	on-chip	Silicon Labs TIMER2 3	silabs,series2-timer
	on-chip	Silicon Labs Series 2 BURTC1	silabs,gecko-burtc
	on-chip	Silicon Labs LETIMER1	silabs,series2-letimer
Watchdog	on-chip	Silicon Labs Series 1-2 WDOG1	silabs,gecko-wdog

System Clock

The system is configured to use the HFRCODPLL oscillator at 76.8 MHz as the system clock, locked to the 38.4 MHz crystal oscillator in the module.

Serial Port

The BGM220P module has two USARTs and one EUART. USART1 is connected to the board controller and is used for the console.

Programming and Debugging

The bgm220_ek4314a board supports the runners and associated west commands listed below.

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

Note

Before using the kit the first time, you should update the J-Link firmware in Simplicity Studio.

Flashing

The sample application Hello World is used for this example. Build the Zephyr kernel and application:

# From the root of the zephyr repository
west build -b bgm220_ek4314a samples/hello_world

Connect the board to your host computer using the USB port and you should see a USB connection.

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’ll see the following message on the corresponding serial port terminal session:

Hello World! bgm220_ek4314a/bgm220pc22hna

Bluetooth

To use BLE 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 bgm220_ek4314a samples/bluetooth/observer