177 lines
6.0 KiB
ReStructuredText
177 lines
6.0 KiB
ReStructuredText
.. _efm32hg_slstk3400a:
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EFM32HG-SLSTK3400A
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##################
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Overview
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********
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The EFM32 Happy Gecko Starter Kit EFM32HG-SLSTK3400A contains a MCU from the
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EFM32HG family built on ARM® Cortex®-M0+ processor with excellent low
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power capabilities.
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.. figure:: efm32hg_slstk3400a.jpg
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:align: center
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:alt: EFM32HG-SLSTK3400A
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EFM32HG-SLSTK3400A (image courtesy of Silicon Labs)
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Hardware
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********
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- Advanced Energy Monitoring system for precise current tracking
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- Real-time energy and power profiling
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- ARM Cortex M0+ with 64 kB Flash and 8 kB RAM
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- 128 X 128 pixel Memory LCD
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- 2 user buttons, 2 user LEDs and 2 touch buttons
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- 20 pin expansion header
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- Silicon Labs Si7021 Relative Humidity/Temperature sensor
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- USB device interface
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- Integrated SEGGER J-Link USB debugger/emulator with debug out functionality
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See these documents for more information
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- `EFM32HG Website`_
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- `EFM32HG Datasheet`_
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- `EFM32HG Reference Manual`_
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- `EFM32HG-SLSTK3400A Website`_
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- `EFM32HG-SLSTK3400A User Guide`_
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- `EFM32HG-SLSTK3400A Schematics`_
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Supported Features
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==================
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The efm32hg_slstk3400 board configuration supports the following hardware features:
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+-----------+------------+-------------------------------------+
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| Interface | Controller | Driver/Component |
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+===========+============+=====================================+
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| NVIC | on-chip | nested vector interrupt controller |
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+-----------+------------+-------------------------------------+
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| SYSTICK | on-chip | systick |
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+-----------+------------+-------------------------------------+
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| FLASH | on-chip | flash memory |
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+-----------+------------+-------------------------------------+
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| GPIO | on-chip | gpio |
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+-----------+------------+-------------------------------------+
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| USART | on-chip | serial port-polling; |
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| | | serial port-interrupt |
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+-----------+------------+-------------------------------------+
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The default configuration can be found in
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:zephyr_file:`boards/silabs/efm32hg_slstk3400a/efm32hg_slstk3400a_defconfig`
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Other hardware features are currently not supported by the port.
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Connections and IOs
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===================
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The EFM32HG SoC has six GPIO controllers (PORTA to PORTF), but only three are
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currently enabled (PORTB, PORTE and PORTF) for the EFM32HG-SLSTK3400A board.
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In the following table, the column Name contains Pin names. For example, PF4
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means Pin number 4 on PORTF, as used in the board's datasheets and manuals.
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+-------+-------------+-------------------------------------+
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| Name | Function | Usage |
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+=======+=============+=====================================+
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| PF4 | GPIO | LED0 |
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+-------+-------------+-------------------------------------+
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| PF5 | GPIO | LED1 |
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+-------+-------------+-------------------------------------+
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| PC9 | GPIO | Push Button PB0 |
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+-------+-------------+-------------------------------------+
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| PC10 | GPIO | Push Button PB1 |
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+-------+-------------+-------------------------------------+
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| PF7 | GPIO | Board Controller Enable |
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| | | EFM_BC_EN |
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+-------+-------------+-------------------------------------+
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| PF2 | USART0_TX | USART Console EFM_BC_TX U0_TX #4 |
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+-------+-------------+-------------------------------------+
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| PA9 | USART0_RX | USART Console EFM_BC_RX U0_RX #4 |
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+-------+-------------+-------------------------------------+
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System Clock
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============
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The EFM32HG SoC is configured to use the 24 MHz external oscillator on the
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board.
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Serial Port
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===========
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The EFM32HG SoC has two USARTs, two UARTs and two Low Energy UARTs (LEUART).
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USART1 is connected to the board controller and is used for the console.
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Programming and Debugging
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*************************
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.. note::
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Before using the kit the first time, you should update the J-Link firmware
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from `J-Link-Downloads`_
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Flashing
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========
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The EFM32HG-SLSTK3400 includes an `J-Link`_ serial and debug adaptor built into the
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board. The adaptor provides:
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- A USB connection to the host computer, which exposes a Mass Storage and a
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USB Serial Port.
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- A Serial Flash device, which implements the USB flash disk file storage.
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- A physical UART connection which is relayed over interface USB Serial port.
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Flashing an application to EFM32-SLSTK3400A
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-------------------------------------------
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The sample application :ref:`hello_world` is used for this example.
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Build the Zephyr kernel and application:
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.. zephyr-app-commands::
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:zephyr-app: samples/hello_world
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:board: efm32hg_slstk3400a
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:goals: build
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Connect the EFM32HG-SLSTK3400A to your host computer using the USB port and
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you should see a USB connection that exposes a mass storage device (STK3400)
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and a USB Serial Port. Copy the generated ``zephyr.bin`` in the STK3400 drive.
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Open a serial terminal (minicom, putty, etc.) with the following settings:
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- Speed: 115200
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- Data: 8 bits
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- Parity: None
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- Stop bits: 1
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Reset the board and you will see this message written to the serial port:
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.. code-block:: console
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Hello World! arm
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.. _EFM32HG-SLSTK3400A Website:
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https://www.silabs.com/products/development-tools/mcu/32-bit/efm32-happy-gecko-starter-kit
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.. _EFM32HG-SLSTK3400A User Guide:
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https://www.silabs.com/documents/public/user-guides/ug255-stk3400-user-guide.pdf
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.. _EFM32HG-SLSTK3400A Schematics:
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https://www.silabs.com/documents/public/schematic-files/BRD2012A-B01-schematic.pdf
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.. _EFM32HG Website:
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https://www.silabs.com/products/mcu/32-bit/efm32-happy-gecko
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.. _EFM32HG Datasheet:
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https://www.silabs.com/documents/public/data-sheets/EFM32HG322.pdf
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.. _EFM32HG Reference Manual:
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https://www.silabs.com/documents/public/reference-manuals/EFM32HG-RM.pdf
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.. _J-Link:
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https://www.segger.com/jlink-debug-probes.html
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.. _J-Link-Downloads:
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https://www.segger.com/downloads/jlink
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