178 lines
6.0 KiB
ReStructuredText
178 lines
6.0 KiB
ReStructuredText
.. _efm32wg_stk3800:
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EFM32WG-STK3800
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###############
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Overview
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********
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The EFM32 Wonder Gecko Starter Kit EFM32WG-STK3800 contains a MCU from the
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EFM32WG family built on ARM® Cortex®-M4F processor with excellent low
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power capabilities.
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.. figure:: efm32wg_stk3800.jpg
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:align: center
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:alt: EFM32WG-STK3800
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EFM32WG-STK3800 (image courtesy of Silicon Labs)
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Hardware
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********
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- Advanced Energy Monitoring provides real-time information about the energy
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consumption of an application or prototype design.
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- 32MByte parallel NAND Flash
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- 160 segment Energy Micro LCD
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- 2 user buttons, 2 LEDs and a touch slider
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- Ambient Light Sensor and Inductive-capacitive metal sensor
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- On-board Segger J-Link USB debugger
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For more information about the EFM32WG SoC and EFM32WG-STK3800 board:
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- `EFM32WG Website`_
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- `EFM32WG Datasheet`_
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- `EFM32WG Reference Manual`_
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- `EFM32WG-STK3800 Website`_
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- `EFM32WG-STK3800 User Guide`_
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- `EFM32WG-STK3800 Schematics`_
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Supported Features
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==================
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The efm32wg_stk3800 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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| MPU | on-chip | memory protection unit |
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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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| UART | 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/efm32wg_stk3800/efm32wg_stk3800_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 EFM32WG SoC has six gpio controllers (PORTA to PORTF), but only three are
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currently enabled (PORTB, PORTE and PORTF) for the EFM32WG-STK3800 board.
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In the following table, the column Name contains Pin names. For example, PE2
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means Pin number 2 on PORTE, 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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| PE2 | GPIO | LED0 |
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+-------+-------------+-------------------------------------+
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| PE3 | GPIO | LED1 |
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+-------+-------------+-------------------------------------+
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| PB9 | GPIO | Push Button PB0 |
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+-------+-------------+-------------------------------------+
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| PB10 | 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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| PE0 | UART0_TX | UART Console EFM_BC_TX U0_TX #1 |
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+-------+-------------+-------------------------------------+
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| PE1 | UART0_RX | UART Console EFM_BC_RX U0_RX #1 |
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+-------+-------------+-------------------------------------+
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System Clock
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============
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The EFM32WG SoC is configured to use the 48 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 EFM32WG SoC has three USARTs, two UARTs and two Low Energy UARTs (LEUART).
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UART0 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 EFM32WG-STK3800 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-STK3800
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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: efm32wg_stk3800
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:goals: build
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Connect the EFM32WG-STK3800 to your host computer using the USB port and you
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should see a USB connection which exposes a Mass Storage (STK3800) and a
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USB Serial Port. Copy the generated zephyr.bin in the STK3800 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 should be able to see on the corresponding Serial Port
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the following message:
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.. code-block:: console
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Hello World! arm
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.. _EFM32WG-STK3800 Website:
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http://www.silabs.com/products/development-tools/mcu/32-bit/efm32-wonder-gecko-starter-kit
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.. _EFM32WG-STK3800 User Guide:
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http://www.silabs.com/documents/public/user-guides/efm32wg-stk3800-ug.pdf
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.. _EFM32WG-STK3800 Schematics:
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http://www.silabs.com/documents/public/schematic-files/BRD2400A_A00.pdf
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.. _EFM32WG Website:
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http://www.silabs.com/products/mcu/32-bit/efm32-wonder-gecko
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.. _EFM32WG Datasheet:
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http://www.silabs.com/documents/public/data-sheets/EFM32WG990.pdf
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.. _EFM32WG Reference Manual:
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http://www.silabs.com/documents/public/reference-manuals/EFM32WG-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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