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.. _efm32gg_slwstk6121a:
WGM160P Starter Kit
###################
Overview
********
The WGM160P Starter Kit SLWSTK6121A comes with the BRD4321A radio board.
This radio boards contains a WGM160P module, which combines the WF200 Wi-Fi
transceiver with an EFM32GG11 microcontroller.
.. figure:: wgm160p-starter-kit.jpg
:align: center
:alt: SLWSTK6121A
SLWSTK6121A (image courtesy of Silicon Labs)
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 and 2 LEDs
- Si7021 Humidity and Temperature Sensor
- On-board Segger J-Link USB and Ethernet debugger
- 10/100Base-TX ethernet PHY and RJ-45 jack (on included expansion board)
- MicroSD card slot
- USB Micro-AB connector
For more information about the WGM160P and SLWSTK6121A board:
- `WGM160P Website`_
- `WGM160P Datasheet`_
- `SLWSTK6121A Website`_
- `SLWSTK6121A User Guide`_
- `EFM32GG11 Datasheet`_
- `EFM32GG11 Reference Manual`_
- `WF200 Datasheet`_
Supported Features
==================
The efm32gg_slwstk6121a board configuration supports the following hardware
features:
+-----------+------------+-------------------------------------+
| Interface | Controller | Driver/Component |
+===========+============+=====================================+
| MPU | on-chip | memory protection unit |
+-----------+------------+-------------------------------------+
| COUNTER | on-chip | rtcc |
+-----------+------------+-------------------------------------+
| ETHERNET | on-chip | ethernet |
+-----------+------------+-------------------------------------+
| FLASH | on-chip | flash memory |
+-----------+------------+-------------------------------------+
| GPIO | on-chip | gpio |
+-----------+------------+-------------------------------------+
| I2C | on-chip | i2c port-polling |
+-----------+------------+-------------------------------------+
| NVIC | on-chip | nested vector interrupt controller |
+-----------+------------+-------------------------------------+
| SYSTICK | on-chip | systick |
+-----------+------------+-------------------------------------+
| UART | on-chip | serial port-polling; |
| | | serial port-interrupt |
+-----------+------------+-------------------------------------+
The default configuration can be found in the defconfig file:
``boards/arm/efm32gg_slwstk6121a/efm32gg_slwstk6121a_defconfig``
Other hardware features, including the WF200 WiFi transceiver, are
currently not supported by the port.
Connections and IOs
===================
The WGM160P's EFM32GG11 SoC has six GPIO controllers (PORTA to PORTF), all of which are
currently enabled for the SLWSTK6121A 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 |
+=======+=============+=====================================+
| PA4 | GPIO | LED0 |
+-------+-------------+-------------------------------------+
| PA5 | GPIO | LED1 |
+-------+-------------+-------------------------------------+
| PD6 | GPIO | Push Button PB0 |
+-------+-------------+-------------------------------------+
| PD8 | GPIO | Push Button PB1 |
+-------+-------------+-------------------------------------+
| PE7 | UART_TX | UART TX Console VCOM_TX US0_TX #1 |
+-------+-------------+-------------------------------------+
| PE6 | UART_RX | UART RX Console VCOM_RX US0_RX #1 |
+-------+-------------+-------------------------------------+
| PB11 | I2C_SDA | SENSOR_I2C_SDA I2C1_SDA #1 |
+-------+-------------+-------------------------------------+
| PB12 | I2C_SCL | SENSOR_I2C_SCL I2C1_SCL #1 |
+-------+-------------+-------------------------------------+
System Clock
============
The EFM32GG11 SoC is configured to use the 50 MHz external oscillator on the
board.
Serial Port
===========
The EFM32GG11 SoC has four USARTs, two UARTs and two Low Energy UARTs (LEUART).
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
from `J-Link-Downloads`_
Flashing
========
The SLWSTK6121A includes an `J-Link`_ serial and debug adaptor built into the
board. The adaptor provides:
- A USB connection to the host computer
- A physical UART connection which is relayed over interface USB serial port.
Flashing an application to SLWSTK6121A
--------------------------------------
Connect the SLWSTK6121A to your host computer using the USB port.
Here is an example to build and flash the :ref:`hello_world` application.
.. zephyr-app-commands::
:zephyr-app: samples/hello_world
:board: efm32gg_slwstk6121a
:goals: flash
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:
.. code-block:: console
Hello World! efm32gg_slwstk6121a
.. _WGM160P Website:
https://www.silabs.com/wireless/wi-fi/wfm160-series-1-modules
.. _WGM160P Datasheet:
https://www.silabs.com/documents/public/data-sheets/wgm160p-datasheet.pdf
.. _SLWSTK6121A Website:
https://www.silabs.com/development-tools/wireless/wi-fi/wgm160p-wifi-module-starter-kit
.. _SLWSTK6121A User Guide:
https://www.silabs.com/documents/public/user-guides/ug351-brd4321a-user-guide.pdf
.. _EFM32GG11 Datasheet:
https://www.silabs.com/documents/public/data-sheets/efm32gg11-datasheet.pdf
.. _EFM32GG11 Reference Manual:
https://www.silabs.com/documents/public/reference-manuals/efm32gg11-rm.pdf
.. _WF200 Datasheet:
https://www.silabs.com/documents/public/data-sheets/wf200-datasheet.pdf
.. _J-Link:
https://www.segger.com/jlink-debug-probes.html
.. _J-Link-Downloads:
https://www.segger.com/downloads/jlink