EFM32 Giant Gecko 11 (SLSTK3701A)

Board Overview

EFM32 Giant Gecko 11 (SLSTK3701A)

Name:

slstk3701a

Vendor:

Silicon Laboratories

Architecture:

arm

SoC:

efm32gg11b820f2048gl192

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Overview

The EFM32 Giant Gecko Starter Kit SLSTK3701A contains an MCU from the EFM32GG Series 1 family built on an ARM® Cortex®-M4F processor with excellent low power capabilities.

Hardware

• Advanced Energy Monitoring provides real-time information about the energy consumption of an application or prototype design.

• Ultra low power 128x128 pixel color Memory-LCD

• 2 user buttons, 2 LEDs and a touch slider

• Relative humidity, magnetic Hall Effect and inductive-capacitive metal sensor

• USB interface for Host/Device/OTG

• 32 Mb Quad-SPI Flash memory

• SD card slot

• RJ-45 Ethernet jack

• 2 digital microphones

• On-board Segger J-Link USB debugger

For more information about the EFM32GG11 SoC and SLSTK3701A board:

• EFM32GG Series 1 Website

• EFM32GG11 Datasheet

• EFM32GG11 Reference Manual

• SLSTK3701A Website

• SLSTK3701A User Guide

• SLSTK3701A Schematics

Supported Features

The slstk3701a 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.

slstk3701a/efm32gg11b820f2048gl192 target

Type	Location	Description	Compatible
CPU	on-chip	ARM Cortex-M4F CPU1	arm,cortex-m4f
Ethernet	on-chip	SiLabs Gecko Ethernet1	silabs,gecko-ethernet
Flash controller	on-chip	Silicon Labs Gecko flash controller1	silabs,gecko-flash-controller
GPIO & Headers	on-chip	SiLabs Gecko GPIO1	silabs,gecko-gpio
	on-chip	SiLabs Gecko GPIO Port9	silabs,gecko-gpio-port
I2C	on-chip	Silabs Gecko I2C3	silabs,gecko-i2c
Input	on-board	Group of GPIO-bound input keys1	gpio-keys
Interrupt controller	on-chip	ARMv7-M NVIC (Nested Vectored Interrupt Controller)1	arm,v7m-nvic
LED	on-board	Group of GPIO-controlled LEDs1	gpio-leds
MTD	on-chip	Flash node1	soc-nv-flash
	on-board	Fixed partitions of a flash (or other non-volatile storage) memory1	fixed-partitions
Pin control	on-chip	The Silabs pin controller is a singleton node responsible for controlling pin function selection and pin properties1	silabs,gecko-pinctrl
RNG	on-chip	GECKO TRNG (True Random Number Generator)1	silabs,gecko-trng
RTC	on-chip	Silabs Gecko RTCC (Real-Time Counter)1	silabs,gecko-rtcc
Serial controller	on-chip	Gecko UART2	silabs,gecko-uart
	on-chip	Gecko USART2 4	silabs,gecko-usart
	on-chip	Gecko LEUART1 1	silabs,gecko-leuart
SRAM	on-chip	Generic on-chip SRAM description1	mmio-sram
Timer	on-chip	ARMv7-M System Tick1	arm,armv7m-systick
Watchdog	on-chip	Silicon Labs Gecko Family Watchdog driver1 1	silabs,gecko-wdog

Connections and IOs

The EFM32GG11 SoC has nine GPIO controllers (PORTA to PORTI), all of which are currently enabled for the SLSTK3701A board.

In the following table, the column Name contains pin names. For example, PE1 means pin number 1 on PORTE, as used in the board’s datasheets and manuals.

Name	Function	Usage
PH10	GPIO	LED0 red
PH11	GPIO	LED0 green
PH12	GPIO	LED0 blue
PH13	GPIO	LED1 red
PH14	GPIO	LED1 green
PH15	GPIO	LED1 blue
PC8	GPIO	Push Button PB0
PC9	GPIO	Push Button PB1
PE1	GPIO	Board Controller Enable EFM_BC_EN
PH4	UART_TX	UART TX Console VCOM_TX US0_TX #4
PH5	UART_RX	UART RX Console VCOM_RX US0_RX #4
PI4	I2C_SDA	SENSOR_I2C_SDA I2C2_SDA #7
PI5	I2C_SCL	SENSOR_I2C_SCL I2C2_SCL #7

System Clock

The EFM32GG11 SoC is configured to use the 50 MHz external oscillator on the board.

Serial Port

The EFM32GG11 SoC has six USARTs, two UARTs and two Low Energy UARTs (LEUART). USART4 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 SLSTK3701A includes an J-Link serial and debug adaptor built into the board. The adaptor provides:

• A USB connection to the host computer, which exposes a mass storage device and a USB serial port.

• A serial flash device, which implements the USB flash disk file storage.

• A physical UART connection which is relayed over interface USB serial port.

Flashing an application to SLSTK3701A

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 slstk3701a samples/hello_world

Connect the SLSTK3701A to your host computer using the USB port and you should see a USB connection which exposes a mass storage device(STK3701A) and a USB Serial Port. Copy the generated zephyr.bin to the STK3701A drive.

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! slstk3701a