| .. _efr32BG27_brd2602: |
| |
| SiLabs EFR32BG27-BRD2602(A) (EFR32BG27 +8 dBm Dev Kit Board) |
| ############################################################ |
| |
| BRD2602 is a board based on EFR32BG27 SoC and is one of |
| :ref:`efr32_thunderboard`. |
| |
| Hardware |
| ******** |
| |
| - EFR32BG27 Blue Gecko Wireless SoC with up to 76.8 MHz operating frequency |
| - ARM® Cortex® M33 core with 64 kB RAM and 768 kB Flash |
| - Macronix ultra low power 8-Mbit SPI flash (MX25R8035F) |
| - 2.4 GHz ceramic antenna for wireless transmission |
| - Silicon Labs Si7021 relative humidity and temperature sensor |
| - Vishay VEML6035 low power, high sensitivity ambient light Sensor |
| - Silicon Labs Si7210 hall effect sensor |
| - TDK InvenSense ICM-20689 6-axis inertial sensor |
| - Pair of PDM microphones |
| - One LED and one push button |
| - Power enable signals and isolation switches for ultra low power operation |
| - On-board SEGGER J-Link debugger for easy programming and debugging, which |
| includes a USB virtual COM port and Packet Trace Interface (PTI) |
| - Mini Simplicity connector for access to energy profiling and advanced wireless |
| network debugging |
| - Breakout pads for GPIO access and connection to external hardware |
| - Reset button |
| - CR2032 coin cell holder and external battery connector |
| |
| Supported Features |
| ================== |
| |
| The efr32bg27_brd2602 board configuration supports the following hardware features: |
| |
| +-----------+------------+-------------------------------------+ |
| | Interface | Controller | Driver/Component | |
| +===========+============+=====================================+ |
| | NVIC | on-chip | nested vector interrupt controller | |
| +-----------+------------+-------------------------------------+ |
| | SYSTICK | on-chip | systick | |
| +-----------+------------+-------------------------------------+ |
| | FLASH | on-chip | flash memory | |
| +-----------+------------+-------------------------------------+ |
| | GPIO | on-chip | gpio | |
| +-----------+------------+-------------------------------------+ |
| | UART | on-chip | serial | |
| +-----------+------------+-------------------------------------+ |
| |
| Flashing |
| ======== |
| |
| The EFR32BG27-BRD2602A includes an embedded `J-Link`_ adapter built around |
| EFM32GG12 microcontroller (not user-programmable). |
| The adapter provides: |
| |
| - SWD interface to EFR32BG27 for flashing and debugging. |
| - SWO trace interface to EFR32BG27 for tracing. |
| - UART interface to EFR32BG27 for console access. |
| - A USB connection to the host computer, which exposes CDC-ACM Serial Port |
| endpoints for access to the console UART interface and proprietary J-Link |
| endpoints for access to the SWD and SWO interfaces. |
| |
| UART functionality of the adapter is accessible via standard CDC-ACM USB driver |
| present in most desktop operating systems and any standard serial port terminal |
| program e.g. `picocom`_. |
| |
| SWD and SWO functionality is accessible via `Simplicity Commander`_. |
| |
| The simplest way to flash the board is by using West, which runs Simplicity |
| Commander in unattended mode and passes all the necessary arguments to it. |
| |
| - If Simplicity Commander is installed in the system and the directory in |
| which `commander` executable is located is present in the `PATH` environment |
| variable: |
| |
| .. code-block:: console |
| |
| west flash |
| |
| - Otherwise, one should specify full path to the `commander` executable: |
| |
| .. code-block:: console |
| |
| west flash --commander <path_to_commander_directory>/commander |
| |
| - In case several J-Link adapters are connected, you must specify serial number |
| of the adapter which should be used for flashing: |
| |
| .. code-block:: console |
| |
| west flash --dev-id <J-Link serial number> |
| |
| Programming and Debugging |
| ========================= |
| |
| The sample application :ref:`hello_world` is used for this example. |
| Build the Zephyr kernel and application: |
| |
| .. zephyr-app-commands:: |
| :zephyr-app: samples/hello_world |
| :board: efr32bg27_brd2602a |
| :goals: build |
| |
| Connect your device to your host computer using the USB port and you |
| should see a USB connection. Use `west`'s flash command |
| |
| 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 should be able to see on the corresponding Serial Port |
| the following message: |
| |
| .. code-block:: console |
| |
| Hello World! efr32bg27_brd2602a |
| |
| .. _picocom: |
| https://github.com/npat-efault/picocom |
| |
| .. _J-Link: |
| https://www.segger.com/jlink-debug-probes.html |
| |
| .. _Simplicity Commander: |
| https://www.silabs.com/developers/mcu-programming-options |