boards/silabs/radio_boards/slwrb4250b/doc/index.rst
.. zephyr:board:: slwrb4250b
Overview
The EFR32FG1 Flex Gecko 2.4 GHz and 868 MHz Radio Board is delivered as part of
SLWSTK6061B Proprietary Wireless Starter Kit_. It contains a EFR32FG1 Wireless
SoC built on an ARM Cortex®-M4F processor with excellent low power capabilities.
The BRD4250B a.k.a. SLWRB4250B radio board plugs into the Wireless Starter Kit
Mainboard BRD4001A and is supported as one of :ref:silabs_radio_boards.
Hardware
For more information about the EFR32FG1 SoC and BRD4250B board, refer to these documents:
EFR32FG1 Website_EFR32FG1 Datasheet_EFR32xG1 Reference Manual_SLWSTK6061B Proprietary Wireless Starter Kit_BRD4250B User Guide_BRD4250B Reference Manual_EFR32FG1-BRD4250B Schematics_.. zephyr:board-supported-hw::
In the following table, the column Pin contains Pin names. For example, PA2 means Pin number 2 on PORTA, as used in the board's datasheets and manuals.
+-------+-------------+-------------------------------------+ | Pin | Function | Usage | +=======+=============+=====================================+ | PF4 | GPIO | LED0 | +-------+-------------+-------------------------------------+ | PF5 | GPIO | LED1 | +-------+-------------+-------------------------------------+ | PF6 | GPIO | Push Button PB0 | +-------+-------------+-------------------------------------+ | PF7 | GPIO | Push Button PB1 | +-------+-------------+-------------------------------------+ | PA5 | GPIO | Board Controller Enable VCOM_ENABLE | +-------+-------------+-------------------------------------+ | PA0 | USART0_TX | UART Console VCOM_TX US0_TX #0 | +-------+-------------+-------------------------------------+ | PA1 | USART0_RX | UART Console VCOM_RX US0_RX #0 | +-------+-------------+-------------------------------------+ | PC6 | SPI_MOSI | Flash MOSI US1_TX #11 | +-------+-------------+-------------------------------------+ | PC7 | SPI_MISO | Flash MISO US1_RX #11 | +-------+-------------+-------------------------------------+ | PC8 | SPI_SCLK | Flash SCLK US1_CLK #11 | +-------+-------------+-------------------------------------+ | PA4 | SPI_CS | Flash Chip Select (GPIO) | +-------+-------------+-------------------------------------+
The EFR32FG1P SoC is configured to use the 38.4 MHz external oscillator on the board.
The EFR32FG1P SoC has two USARTs and one Low Energy UARTs (LEUART). USART0 is connected to the board controller and is used for the console.
Programming and Debugging
.. zephyr:board-supported-runners::
Connect the BRD4001A board with a mounted BRD4250B radio module to your host computer using the USB port.
Here is an example for the :zephyr:code-sample:hello_world application.
.. zephyr-app-commands:: :zephyr-app: samples/hello_world :board: slwrb4250b :goals: flash
Open a serial terminal (minicom, putty, etc.) with the following settings:
Reset the board and you should see the following message in the terminal:
.. code-block:: console
Hello World! slwrb4250b
.. _EFR32FG1 Website: https://www.silabs.com/wireless/proprietary/efr32fg1-series-1-sub-ghz-2-4-ghz-socs
.. _EFR32FG1 Datasheet: https://www.silabs.com/documents/public/data-sheets/efr32fg1-datasheet.pdf
.. _EFR32xG1 Reference Manual: https://www.silabs.com/documents/public/reference-manuals/efr32xg1-rm.pdf
.. _SLWSTK6061B Proprietary Wireless Starter Kit: https://www.silabs.com/products/development-tools/wireless/proprietary/slwstk6061b-efr32-flex-gecko-868-mhz-2-4-ghz-and-sub-ghz-starter-kit
.. _BRD4250B User Guide: https://www.silabs.com/documents/public/user-guides/ug182-brd4250b-user-guide.pdf
.. _BRD4250B Reference Manual: https://www.silabs.com/documents/public/reference-manuals/brd4250b-rm.pdf
.. _EFR32FG1-BRD4250B Schematics: https://www.silabs.com/documents/public/schematic-files/BRD4250B-B02-schematic.pdf