256 lines
9.5 KiB
ReStructuredText
256 lines
9.5 KiB
ReStructuredText
.. _frdm_k82f:
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NXP FRDM-K82F
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##############
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Overview
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********
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The FRDM-K82F is a low-cost development platform for Kinetis K80, K81,
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and K82 MCUs.
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- Form-factor compatible with the Arduino R3 pin layout
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- Peripherals enable rapid prototyping, including a six-axis digital
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accelerometer and magnetometer to create full eCompass capabilities, a
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tri-colored LED and two user push-buttons for direct interaction, 2x32 Mb
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QuadSPI external flash, FlexIO camera header, touchpads and headers for use
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with Bluetooth and 2.4 GHz radio add-on modules
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- OpenSDAv2.1, the NXP open source hardware embedded serial and debug adapter
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running an open source bootloader, offers options for serial communication,
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flash programming, and run-control debugging
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.. image:: frdm_k82f.jpg
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:align: center
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:alt: FRDM-K82F
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Hardware
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********
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- MK82FN256VLL15 MCU (150 MHz, 256 KB flash memory, 256 KB RAM, low-power,
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crystal-less USB, and 100 Low profile Quad Flat Package (LQFP))
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- Dual role USB interface with micro-B USB connector
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- RGB LED
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- FXOS8700CQ accelerometer and magnetometer
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- Two user push buttons
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- 2x 32 Mb QSPI flash
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- Flexible power supply option - OpenSDAv2.1 USB, Kinetis K82 USB, and external source
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- Easy access to MCU input/output through Arduino R3 compatible I/O connectors
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- Programmable OpenSDAv2.1 debug circuit supporting the CMSIS-DAP Interface
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software that provides:
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- Mass storage device (MSD) flash programming interface
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- CMSIS-DAP debug interface over a driver-less USB HID connection providing
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run-control debugging and compatibility with IDE tools
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- Virtual serial port interface
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- Open source CMSIS-DAP software project
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- FlexIO header
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For more information about the K82F SoC and FRDM-K82F board:
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- `K82F Website`_
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- `K82F Datasheet`_
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- `K82F Reference Manual`_
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- `FRDM-K82F Website`_
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- `FRDM-K82F User Guide`_
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- `FRDM-K82F Schematics`_
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Supported Features
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==================
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The frdm_k82f board configuration supports the hardware features listed
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below. For additional features not yet supported, please also refer to the
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:ref:`frdm_k64f`, which is the superset board in NXP's Kinetis K series.
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NXP prioritizes enabling the superset board with NXP's Full Platform Support for
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Zephyr. Therefore, the frdm_k64f board may have additional features
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already supported, which can also be re-used on this frdm_k82f board:
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+-----------+------------+-------------------------------------+
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| Interface | Controller | Driver/Component |
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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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| PINMUX | on-chip | pinmux |
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+-----------+------------+-------------------------------------+
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| ADC | on-chip | adc |
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+-----------+------------+-------------------------------------+
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| FLASH | on-chip | soc flash |
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+-----------+------------+-------------------------------------+
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| FLASH | off-chip | QSPI flash |
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+-----------+------------+-------------------------------------+
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| GPIO | on-chip | gpio |
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+-----------+------------+-------------------------------------+
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| I2C | on-chip | i2c |
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+-----------+------------+-------------------------------------+
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| PWM | on-chip | pwm |
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+-----------+------------+-------------------------------------+
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| RTC | on-chip | rtc |
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+-----------+------------+-------------------------------------+
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| SENSOR | off-chip | fxos8700 polling; |
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| | | fxos8700 trigger |
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+-----------+------------+-------------------------------------+
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| SPI | on-chip | spi |
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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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| USB | on-chip | USB device |
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+-----------+------------+-------------------------------------+
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| WATCHDOG | on-chip | watchdog |
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+-----------+------------+-------------------------------------+
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| TRNG | on-chip | entropy |
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+-----------+------------+-------------------------------------+
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| FTFA | on-chip | flash programming |
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+-----------+------------+-------------------------------------+
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| PIT | on-chip | pit |
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+-----------+------------+-------------------------------------+
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The default configuration can be found in
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:zephyr_file:`boards/nxp/frdm_k82f/frdm_k82f_defconfig`
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Other hardware features are not currently supported by the port.
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System Clock
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============
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The K82F SoC is configured to use the 12 MHz external oscillator on the board
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with the on-chip PLL to generate a 120 MHz system clock.
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Serial Port
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===========
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The K82F SoC has five UARTs. One is configured for the console, the remaining
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ones are not used.
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USB
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===
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The K82F SoC has a USB OTG (USBOTG) controller that supports both
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device and host functions through its micro USB connector (J11).
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Only USB device function is supported in Zephyr at the moment.
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Programming and Debugging
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*************************
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Build and flash applications as usual (see :ref:`build_an_application` and
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:ref:`application_run` for more details).
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Configuring a Debug Probe
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=========================
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A debug probe is used for both flashing and debugging the board. This board is
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configured by default to use the :ref:`opensda-daplink-onboard-debug-probe`.
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Early versions of this board have an outdated version of the OpenSDA bootloader
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and require an update. Please see the `DAPLink Bootloader Update`_ page for
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instructions to update from the CMSIS-DAP bootloader to the DAPLink bootloader.
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Option 1: :ref:`opensda-daplink-onboard-debug-probe` (Recommended)
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------------------------------------------------------------------
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Install the :ref:`pyocd-debug-host-tools` and make sure they are in your search
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path.
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Follow the instructions in :ref:`opensda-daplink-onboard-debug-probe` to program
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the `OpenSDA DAPLink FRDM-K82F Firmware`_.
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Option 2: :ref:`opensda-jlink-onboard-debug-probe`
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--------------------------------------------------
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Install the :ref:`jlink-debug-host-tools` and make sure they are in your search
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path.
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Follow the instructions in :ref:`opensda-jlink-onboard-debug-probe` to program
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the `OpenSDA J-Link Firmware for FRDM-K82F`_.
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Add the arguments ``-DBOARD_FLASH_RUNNER=jlink`` and
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``-DBOARD_DEBUG_RUNNER=jlink`` when you invoke ``west build`` to override the
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default runner from pyOCD to J-Link:
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.. zephyr-app-commands::
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:zephyr-app: samples/hello_world
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:board: frdm_k82f
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:gen-args: -DBOARD_FLASH_RUNNER=jlink -DBOARD_DEBUG_RUNNER=jlink
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:goals: build
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Configuring a Console
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=====================
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Regardless of your choice in debug probe, we will use the OpenSDA
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microcontroller as a usb-to-serial adapter for the serial console.
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Connect a USB cable from your PC to J5.
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Use the following settings with your serial terminal of choice (minicom, putty,
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etc.):
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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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Flashing
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========
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Here is an example for the :zephyr:code-sample:`hello_world` application.
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.. zephyr-app-commands::
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:zephyr-app: samples/hello_world
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:board: frdm_k82f
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:goals: flash
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Open a serial terminal, reset the board (press the SW1 button), and you should
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see the following message in the terminal:
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.. code-block:: console
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***** Booting Zephyr OS v1.14.0-xxx-gxxxxxxxxxxxx *****
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Hello World! frdm_k82f
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Debugging
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=========
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Here is an example for the :zephyr:code-sample:`hello_world` application.
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.. zephyr-app-commands::
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:zephyr-app: samples/hello_world
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:board: frdm_k82f
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:goals: debug
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Open a serial terminal, step through the application in your debugger, and you
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should see the following message in the terminal:
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.. code-block:: console
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***** Booting Zephyr OS v1.14.0-xxx-gxxxxxxxxxxxx *****
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Hello World! frdm_k82f
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.. _FRDM-K82F Website:
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https://www.nxp.com/design/development-boards/freedom-development-boards/mcu-boards/freedom-development-platform-for-kinetis-k82-k81-and-k80-mcus:FRDM-K82F
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.. _FRDM-K82F User Guide:
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https://www.nxp.com/webapp/Download?colCode=FRDMK82FUG
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.. _FRDM-K82F Schematics:
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https://www.nxp.com/downloads/en/schematics/FRDM-K82F-SCH.pdf
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.. _K82F Website:
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https://www.nxp.com/products/processors-and-microcontrollers/arm-microcontrollers/general-purpose-mcus/k-series-cortex-m4/k8x-secure/kinetis-k82-150-mhz-hw-cryptographic-co-processor-quadspi-microcontrollers-mcus-based-on-arm-cortex-m4-core:K82_150
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.. _K82F Datasheet:
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https://www.nxp.com/docs/en/data-sheet/K82P121M150SF5.pdf
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.. _K82F Reference Manual:
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https://www.nxp.com/webapp/Download?colCode=K82P121M150SF5RM
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.. _DAPLink Bootloader Update:
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https://os.mbed.com/blog/entry/DAPLink-bootloader-update/
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.. _OpenSDA DAPLink FRDM-K82F Firmware:
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https://www.nxp.com/downloads/en/snippets-boot-code-headers-monitors/k20dx_frdmk82f_if_crc_legacy_0x8000.bin
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.. _OpenSDA J-Link Firmware for FRDM-K82F:
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https://www.segger.com/downloads/jlink/OpenSDA_FRDM-K82F
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