.. _nrf9160dk_nrf9160: nRF9160 DK ########## Overview ******** The nRF9160 DK (PCA10090) is a single-board development kit for evaluation and development on the nRF9160 SiP for LTE-M and NB-IoT. The nrf9160dk_nrf9160 board configuration provides support for the Nordic Semiconductor nRF9160 ARM Cortex-M33F CPU with ARMv8-M Security Extension and the following devices: * :abbr:`ADC (Analog to Digital Converter)` * CLOCK * FLASH * :abbr:`GPIO (General Purpose Input Output)` * :abbr:`I2C (Inter-Integrated Circuit)` * :abbr:`MPU (Memory Protection Unit)` * :abbr:`NVIC (Nested Vectored Interrupt Controller)` * :abbr:`PWM (Pulse Width Modulation)` * :abbr:`RTC (nRF RTC System Clock)` * Segger RTT (RTT Console) * :abbr:`SPI (Serial Peripheral Interface)` * :abbr:`UARTE (Universal asynchronous receiver-transmitter with EasyDMA)` * :abbr:`WDT (Watchdog Timer)` * :abbr:`IDAU (Implementation Defined Attribution Unit)` .. figure:: ../../../../../../../../../zephyr/boards/arm/nrf9160dk_nrf9160/doc/img/nrf9160dk_nrf9160.jpg :align: center :alt: nRF9160 DK nRF9160 DK (Credit: Nordic Semiconductor) More information about the board can be found at the `nRF9160 DK website`_. The `Nordic Semiconductor Infocenter`_ contains the processor's information and the datasheet. Hardware ******** nRF9160 DK has two external oscillators. The frequency of the slow clock is 32.768 kHz. The frequency of the main clock is 32 MHz. Supported Features ================== The nrf9160dk_nrf9160 board configuration supports the following hardware features: +-----------+------------+----------------------+ | Interface | Controller | Driver/Component | +===========+============+======================+ | ADC | on-chip | adc | +-----------+------------+----------------------+ | CLOCK | on-chip | clock_control | +-----------+------------+----------------------+ | FLASH | on-chip | flash | +-----------+------------+----------------------+ | GPIO | on-chip | gpio | +-----------+------------+----------------------+ | I2C(M) | on-chip | i2c | +-----------+------------+----------------------+ | MPU | on-chip | arch/arm | +-----------+------------+----------------------+ | NVIC | on-chip | arch/arm | +-----------+------------+----------------------+ | PWM | on-chip | pwm | +-----------+------------+----------------------+ | RTC | on-chip | system clock | +-----------+------------+----------------------+ | RTT | Segger | console | +-----------+------------+----------------------+ | SPI(M/S) | on-chip | spi | +-----------+------------+----------------------+ | SPU | on-chip | system protection | +-----------+------------+----------------------+ | UARTE | on-chip | serial | +-----------+------------+----------------------+ | WDT | on-chip | watchdog | +-----------+------------+----------------------+ .. _nrf9160dk_additional_hardware: Additional hardware in v0.14.0+ ------------------------------- Starting from v0.14.0, additional hardware is available on the DK: * External flash memory (MX25R6435F, 64 Mb) * I/O expander (PCAL6408A) that can be used to interface LEDs, slide switches, and buttons To use this additional hardware, specify the revision of the board that should be used when building your application (for more information, see :ref:`application_board_version`). For example, to build for nRF9160 DK v1.0.0: .. zephyr-app-commands:: :tool: all :cd-into: :board: nrf9160dk_nrf9160@1.0.0 :goals: build :compact: Remember to also enable routing for this additional hardware in the firmware for :ref:`nrf9160dk_nrf52840` (see :ref:`nrf9160dk_board_controller_firmware`). Other hardware features have not been enabled yet for this board. See `nRF9160 DK website`_ and `Nordic Semiconductor Infocenter`_ for a complete list of nRF9160 DK board hardware features. Connections and IOs =================== LED --- * LED1 (green) = P0.2 * LED2 (green) = P0.3 * LED3 (green) = P0.4 * LED4 (green) = P0.5 Push buttons and Switches ------------------------- * BUTTON1 = P0.6 * BUTTON2 = P0.7 * SWITCH1 = P0.8 * SWITCH2 = P0.9 * BOOT = SW5 = boot/reset Security components =================== - Implementation Defined Attribution Unit (`IDAU`_). The IDAU is implemented with the System Protection Unit and is used to define secure and non-secure memory maps. By default, all of the memory space (Flash, SRAM, and peripheral address space) is defined to be secure accessible only. - Secure boot. Programming and Debugging ************************* nrf9160dk_nrf9160 supports the Armv8m Security Extension, and by default boots in the Secure state. Building Secure/Non-Secure Zephyr applications with Arm |reg| TrustZone |reg| ============================================================================= Applications on the nRF9160 may contain a Secure and a Non-Secure firmware image. The Secure image can be built using either Zephyr or `Trusted Firmware M`_ (TF-M). Non-Secure firmware images are always built using Zephyr. The two alternatives are described below. .. note:: By default the Secure image for nRF9160 is built using TF-M. Building the Secure firmware using Zephyr ----------------------------------------- The process requires the following steps: 1. Build the Secure Zephyr application using ``-DBOARD=nrf9160dk_nrf9160`` and ``CONFIG_TRUSTED_EXECUTION_SECURE=y`` in the application project configuration file. 2. Build the Non-Secure Zephyr application using ``-DBOARD=nrf9160dk_nrf9160_ns``. 3. Merge the two binaries together. Building the Secure firmware with TF-M -------------------------------------- The process to build the Secure firmware image using TF-M and the Non-Secure firmware image using Zephyr requires the following action: 1. Build the Non-Secure Zephyr application using ``-DBOARD=nrf9160dk_nrf9160_ns``. To invoke the building of TF-M the Zephyr build system requires the Kconfig option ``BUILD_WITH_TFM`` to be enabled, which is done by default when building Zephyr as a Non-Secure application. The Zephyr build system will perform the following steps automatically: * Build the Non-Secure firmware image as a regular Zephyr application * Build a TF-M (secure) firmware image * Merge the output binaries together * Optionally build a bootloader image (MCUboot) .. note:: Depending on the TF-M configuration, an application DTS overlay may be required, to adjust the Non-Secure image Flash and SRAM starting address and sizes. When building a Secure/Non-Secure application, the Secure application will have to set the IDAU (SPU) configuration to allow Non-Secure access to all CPU resources utilized by the Non-Secure application firmware. SPU configuration shall take place before jumping to the Non-Secure application. Building a Secure only application ================================== Build the Zephyr app in the usual way (see :ref:`build_an_application` and :ref:`application_run`), using ``-DBOARD=nrf9160dk_nrf9160``. Flashing ======== Follow the instructions in the :ref:`nordic_segger` page to install and configure all the necessary software. Further information can be found in :ref:`nordic_segger_flashing`. Then build and flash applications as usual (see :ref:`build_an_application` and :ref:`application_run` for more details). Here is an example for the :ref:`hello_world` application. First, run your favorite terminal program to listen for output. .. code-block:: console $ minicom -D -b 115200 Replace :code:`` with the port where the nRF9160 DK can be found. For example, under Linux, :code:`/dev/ttyACM0`. Then build and flash the application in the usual way. .. zephyr-app-commands:: :zephyr-app: samples/hello_world :board: nrf9160dk_nrf9160 :goals: build flash Debugging ========= Refer to the :ref:`nordic_segger` page to learn about debugging Nordic boards with a Segger IC. Testing the LEDs and buttons in the nRF9160 DK ********************************************** There are 2 samples that allow you to test that the buttons (switches) and LEDs on the board are working properly with Zephyr: * :zephyr:code-sample:`blinky` * :zephyr:code-sample:`button` You can build and flash the examples to make sure Zephyr is running correctly on your board. The button and LED definitions can be found in :zephyr_file:`boards/arm/nrf9160dk_nrf9160/nrf9160dk_nrf9160_common.dtsi`. References ********** .. target-notes:: .. _IDAU: https://developer.arm.com/docs/100690/latest/attribution-units-sau-and-idau .. _nRF9160 DK website: https://www.nordicsemi.com/Software-and-Tools/Development-Kits/nRF9160-DK .. _Nordic Semiconductor Infocenter: https://infocenter.nordicsemi.com .. _Trusted Firmware M: https://www.trustedfirmware.org/projects/tf-m/