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.. _frdm_k64f:
NXP FRDM-K64F
##############
Overview
********
The Freedom-K64F is an ultra-low-cost development platform for Kinetis K64,
K63, and K24 MCUs.
- Form-factor compatible with the Arduino R3 pin layout
- Peripherals enable rapid prototyping, including a 6-axis digital
accelerometer and magnetometer to create full eCompass capabilities, a
tri-colored LED and 2 user push-buttons for direct interaction, a microSD
card slot, and connectivity using onboard Ethernet port and headers for use
with Bluetooth* and 2.4 GHz radio add-on modules
- OpenSDAv2, the NXP open source hardware embedded serial and debug adapter
running an open source bootloader, offers options for serial communication,
flash programming, and run-control debugging
.. image:: frdm_k64f.jpg
:width: 720px
:align: center
:alt: FRDM-K64F
Hardware
********
- MK64FN1M0VLL12 MCU (120 MHz, 1 MB flash memory, 256 KB RAM, low-power,
crystal-less USB, and 100 Low profile Quad Flat Package (LQFP))
- Dual role USB interface with micro-B USB connector
- RGB LED
- FXOS8700CQ accelerometer and magnetometer
- Two user push buttons
- Flexible power supply option – OpenSDAv2 USB, Kinetis K64 USB, and external source
- Easy access to MCU input/output through Arduino* R3 compatible I/O connectors
- Programmable OpenSDAv2 debug circuit supporting the CMSIS-DAP Interface
software that provides:
- Mass storage device (MSD) flash programming interface
- CMSIS-DAP debug interface over a driver-less USB HID connection providing
run-control debugging and compatibility with IDE tools
- Virtual serial port interface
- Open source CMSIS-DAP software project
- Ethernet
- SDHC
For more information about the K64F SoC and FRDM-K64F board:
- `K64F Website`_
- `K64F Datasheet`_
- `K64F Reference Manual`_
- `FRDM-K64F Website`_
- `FRDM-K64F User Guide`_
- `FRDM-K64F Schematics`_
Supported Features
==================
The frdm_k64f board configuration supports the following hardware features:
+-----------+------------+-------------------------------------+
| Interface | Controller | Driver/Component |
+===========+============+=====================================+
| NVIC | on-chip | nested vector interrupt controller |
+-----------+------------+-------------------------------------+
| SYSTICK | on-chip | systick |
+-----------+------------+-------------------------------------+
| PINMUX | on-chip | pinmux |
+-----------+------------+-------------------------------------+
| GPIO | on-chip | gpio |
+-----------+------------+-------------------------------------+
| I2C | on-chip | i2c |
+-----------+------------+-------------------------------------+
| SPI | on-chip | spi |
+-----------+------------+-------------------------------------+
| ETHERNET | on-chip | ethernet (work in progress, known |
| | | issues exist, see below) |
+-----------+------------+-------------------------------------+
| UART | on-chip | serial port-polling; |
| | | serial port-interrupt |
+-----------+------------+-------------------------------------+
| FLASH | on-chip | soc flash |
+-----------+------------+-------------------------------------+
| SENSOR | off-chip | fxos8700 polling; |
| | | fxos8700 trigger |
+-----------+------------+-------------------------------------+
The default configuration can be found in the defconfig file:
``boards/arm/frdm_k64f/frdm_k64f_defconfig``
Other hardware features are not currently supported by the port.
Connections and IOs
===================
The K64F SoC has five pairs of pinmux/gpio controllers.
+-------+-----------------+---------------------------+
| Name | Function | Usage |
+=======+=================+===========================+
| PTB22 | GPIO | Red LED |
+-------+-----------------+---------------------------+
| PTE26 | GPIO | Green LED |
+-------+-----------------+---------------------------+
| PTB21 | GPIO | Blue LED |
+-------+-----------------+---------------------------+
| PTC6 | GPIO | SW2 / FXOS8700 INT1 |
+-------+-----------------+---------------------------+
| PTC13 | GPIO | FXOS8700 INT2 |
+-------+-----------------+---------------------------+
| PTA4 | GPIO | SW3 |
+-------+-----------------+---------------------------+
| PTB16 | UART0_RX | UART Console |
+-------+-----------------+---------------------------+
| PTB17 | UART0_TX | UART Console |
+-------+-----------------+---------------------------+
| PTC16 | UART3_RX | UART BT HCI |
+-------+-----------------+---------------------------+
| PTC17 | UART3_TX | UART BT HCI |
+-------+-----------------+---------------------------+
| PTCD0 | SPI0_PCS0 | SPI |
+-------+-----------------+---------------------------+
| PTCD1 | SPI0_SCK | SPI |
+-------+-----------------+---------------------------+
| PTCD2 | SPI0_SOUT | SPI |
+-------+-----------------+---------------------------+
| PTCD3 | SPI0_SIN | SPI |
+-------+-----------------+---------------------------+
| PTE24 | I2C0_SCL | I2C / FXOS8700 |
+-------+-----------------+---------------------------+
| PTE25 | I2C0_SDA | I2C / FXOS8700 |
+-------+-----------------+---------------------------+
| PTA5 | MII0_RXER | Ethernet |
+-------+-----------------+---------------------------+
| PTA12 | MII0_RXD1 | Ethernet |
+-------+-----------------+---------------------------+
| PTA13 | MII0_RXD0 | Ethernet |
+-------+-----------------+---------------------------+
| PTA14 | MII0_RXDV | Ethernet |
+-------+-----------------+---------------------------+
| PTA15 | MII0_TXEN | Ethernet |
+-------+-----------------+---------------------------+
| PTA16 | MII0_TXD0 | Ethernet |
+-------+-----------------+---------------------------+
| PTA17 | MII0_TXD1 | Ethernet |
+-------+-----------------+---------------------------+
| PTA28 | MII0_TXER | Ethernet |
+-------+-----------------+---------------------------+
| PTB0 | MII0_MDIO | Ethernet |
+-------+-----------------+---------------------------+
| PTB1 | MII0_MDC | Ethernet |
+-------+-----------------+---------------------------+
| PTC16 | ENET0_1588_TMR0 | Ethernet |
+-------+-----------------+---------------------------+
| PTC17 | ENET0_1588_TMR1 | Ethernet |
+-------+-----------------+---------------------------+
| PTC18 | ENET0_1588_TMR2 | Ethernet |
+-------+-----------------+---------------------------+
| PTC19 | ENET0_1588_TMR3 | Ethernet |
+-------+-----------------+---------------------------+
.. note::
Do not enable Ethernet and UART BT HCI simultaneously because they conflict
on PTC16-17.
System Clock
============
The K64F SoC is configured to use the 50 MHz external oscillator on the board
with the on-chip PLL to generate a 120 MHz system clock.
Serial Port
===========
The K64F SoC has six UARTs. One is configured for the console, another for BT
HCI, and the remaining are not used.
Programming and Debugging
*************************
Flashing
========
The FRDM-K64F includes an `OpenSDA`_ serial and debug adaptor built into the
board. The adaptor provides:
- A USB connection to the host computer, which exposes a Mass Storage and an
USB Serial Port.
- A Serial Flash device, which implements the USB flash disk file storage.
- A physical UART connection which is relayed over interface USB Serial port.
Flashing an application to FRDM-K64F
-------------------------------------
The sample application :ref:`hello_world` is used for this example.
Build the Zephyr kernel and application:
.. code-block:: console
$ cd $ZEPHYR_BASE
$ . zephyr-env.sh
$ cd $ZEPHYR_BASE/samples/hello_world/
$ make BOARD=frdm_k64f
Connect the FRDM-K64F to your host computer using the USB port and you should
see a USB connection which exposes a Mass Storage (MBED) and a USB Serial Port.
Copy the generated zephyr.bin in the MBED drive.
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! arm
Work in progress and known issues
*********************************
Ethernet PHY is currently initialized only at the application startup.
For successful initialization, a network cable must be connected between
the board and a host/router. If a cable is not connected when the board
is powered on or reset, the startup will be aborted with an error message.
.. _FRDM-K64F Website:
http://www.nxp.com/products/software-and-tools/hardware-development-tools/freedom-development-boards/freedom-development-platform-for-kinetis-k64-k63-and-k24-mcus:FRDM-K64F
.. _FRDM-K64F User Guide:
http://www.nxp.com/assets/documents/data/en/user-guides/FRDMK64FUG.pdf
.. _FRDM-K64F Schematics:
http://www.nxp.com/assets/downloads/data/en/schematics/FRDM-K64F-SCH-E4.pdf
.. _OpenSDA:
http://www.nxp.com/products/software-and-tools/hardware-development-tools/startertrak-development-boards/opensda-serial-and-debug-adapter:OPENSDA#FRDM-K64F
.. _K64F Website:
http://www.nxp.com/products/microcontrollers-and-processors/arm-processors/kinetis-cortex-m-mcus/k-series-performance-m4/k6x-ethernet/kinetis-k64-120-mhz-256kb-sram-microcontrollers-mcus-based-on-arm-cortex-m4-core:K64_120
.. _K64F Datasheet:
http://www.nxp.com/assets/documents/data/en/data-sheets/K64P144M120SF5.pdf
.. _K64F Reference Manual:
http://www.nxp.com/assets/documents/data/en/reference-manuals/K64P144M120SF5RM.pdf
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