EFR32xG24 Dev Kit (xG24-DK2601B)
Overview
The EFR32MG24 Mighty Gecko Board dev kit contains a Wireless System-On-Chip from the EFR32MG24 family built on an ARM Cortex®-M33F processor with excellent low power capabilities.
Hardware
EFR32MG24B310F1536IM48-B Mighty Gecko SoC
CPU core: ARM Cortex®-M33 with FPU
Flash memory: 1536 kB
RAM: 256 kB
Transmit power: up to +20 dBm
Operation frequency: 2.4 GHz
Crystals for LFXO (32.768 kHz) and HFXO (38.4 MHz).
On board devices:
Silicon Labs Si7021 relative humidity & temperature sensor
Silicon Labs Si7210 hall effect sensor
2x TDK InvenSense ICS-43434 MEMS microphones with I2S output
TDK InvenSense ICM-20689 6-axis inertial measurement sensor
Vishay VEML6035 ambient light sensor
Bosch BMP384 pressure sensor with internal temperature sensor
MX25R3235F 32 Mbit SPI data flash
For more information about the EFR32MG24 SoC and BRD2601B board, refer to these documents:
Supported Features
The xg24_dk2601b 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.
xg24_dk2601b/efr32mg24b310f1536im48 target
Type |
Location |
Description |
Compatible |
|---|---|---|---|
CPU |
on-chip |
ARM Cortex-M33 CPU1 |
|
ADC |
on-chip |
Silicon Labs Gecko Family IADC1 |
|
Bluetooth |
on-chip |
Bluetooth HCI on Silabs boards1 |
|
Clock control |
on-chip |
Silicon Labs Series 2+ clock control node1 |
|
on-chip |
Generic fixed-rate clock provider3 |
||
on-chip |
Generic fixed-rate clock provider1 |
||
on-chip |
Silicon Labs LFXO peripheral (low-frequency crystal oscillator)1 |
||
on-chip |
Silicon Labs HFRCODPLL peripheral (high-frequency RC oscillator with digital phase-locked loop)1 |
||
on-chip |
Silicon Labs HFRCOEM23 peripheral (high-frequency RC oscillator with energy mode 2 and 3 capability)1 |
||
on-chip |
Silicon Labs LFRCO peripheral (low-frequency RC oscillator)1 |
||
on-chip |
Generic fixed factor clock provider20 |
||
Comparator |
on-chip |
Silabs ACMP (Analog Comparator)1 |
|
Cryptographic accelerator |
on-chip |
Silicon Labs Secure Element mailbox node1 |
|
DMA |
on-chip |
Silabs LDMA controller1 |
|
Flash controller |
on-chip |
Silicon Labs Series 2 flash controller1 |
|
GPIO & Headers |
on-chip |
SiLabs Gecko GPIO1 |
|
on-chip |
SiLabs Gecko GPIO Port4 |
||
I2C |
on-chip |
Silabs Gecko I2C1 |
|
Input |
on-board |
Group of GPIO-bound input keys1 |
|
Interrupt controller |
on-chip |
ARMv8-M NVIC (Nested Vectored Interrupt Controller)1 |
|
LED |
on-board |
Group of GPIO-controlled LEDs1 |
|
Miscellaneous |
on-board |
GPIO Wake Up Trigger for EFR32MG241 |
|
MTD |
on-chip |
Flash node1 |
|
on-board |
Fixed partitions of a flash (or other non-volatile storage) memory1 |
||
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 |
||
Networking |
on-chip |
Silicon Labs Series 2 radio interface1 |
|
Pin control |
on-chip |
The Silabs pin controller is a singleton node responsible for controlling pin function selection and pin properties1 |
|
Regulator |
on-chip |
Silicon Labs Series 2 DC-DC converter1 |
|
on-board |
Fixed voltage regulators1 |
||
RTC |
on-chip |
Silabs Gecko Sleep Timer (Real-Time Counter)1 |
|
Sensors |
on-board |
Vishay VEML7700 High Accuracy Ambient Light Sensor With I2C Interface1 |
|
on-board |
Si7210 hall effect magnetic position and temperature sensor1 |
||
on-board |
Silicon Labs Si7006 Humidity and Temperature Sensor1 |
||
Serial controller |
on-chip |
Silabs USART UART1 |
|
SPI |
on-chip |
||
SRAM |
on-chip |
Generic on-chip SRAM description1 |
|
Timer |
on-chip |
ARMv8-M System Tick1 |
|
on-chip |
SiLabs Gecko BURTC timer1 |
||
Watchdog |
on-chip |
Connections and IOs
In the following table, the column Name contains Pin names. For example, PA2 means Pin number 2 on Port A, as used in the board’s datasheets and manuals.
Name |
Function |
Usage |
|---|---|---|
PA4 |
GPIO |
LED0 |
PB0 |
GPIO |
LED1 |
PD2 |
GPIO |
LED2 |
PB2 |
GPIO |
Push Button 0 |
PB3 |
GPIO |
Push Button 1 |
PA5 |
USART0_TX |
UART Console |
PA6 |
USART0_RX |
UART Console |
PC3 |
EUSART1_TX |
SPI bus: flash, IMU |
PC2 |
EUSART1_RX |
SPI bus: flash, IMU |
PC1 |
EUSART1_SCLK |
SPI bus: flash, IMU |
PC0 |
EUSART1_CS |
SPI bus: flash |
PC4 |
I2C0_SCL |
I2C bus |
PC5 |
I2C0_SDA |
I2C bus |
The default configuration can be found in boards/silabs/dev_kits/xg24_dk2601b/xg24_dk2601b_defconfig
System Clock
The EFR32MG24 SoC is configured to use the 39 MHz external oscillator on the board.
Serial Port
The EFR32MG24 SoC has one USART and two EUSARTs. USART0 is connected to the board controller and is used for the console.
Programming and Debugging
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 xg24_dk2601b samples/hello_world
Connect the xg24_dk2601b 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! xg24_dk2601b
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.
# From the root of the zephyr repository
west build -b xg24_dk2601b samples/bluetooth/observer