blob: 54142883931dae74845071dd6867f4921e189454 [file] [log] [blame]
.. _frdm_kl25z:
NXP FRDM-KL25Z
##############
Overview
********
The Freedom KL25Z is an ultra-low-cost development platform for
Kinetis |reg| L Series KL1x (KL14/15) and KL2x (KL24/25) MCUs built
on ARM |reg| Cortex |reg|-M0+ processor.
The FRDM-KL25Z features include easy access to MCU I/O, battery-ready,
low-power operation, a standard-based form factor with expansion board
options and a built-in debug interface for flash programming and run-control.
.. image:: frdm_kl25z.jpg
:width: 272px
:align: center
:alt: FRDM-KL25Z
Hardware
********
- MKL25Z128VLK4 MCU @ 48 MHz, 128 KB flash, 16 KB SRAM, USB OTG (FS), 80LQFP
- On board capacitive touch "slider", MMA8451Q accelerometer, and tri-color LED
- OpenSDA debug interface
For more information about the KL25Z SoC and FRDM-KL25Z board:
- `KL25Z Website`_
- `KL25Z Datasheet`_
- `KL25Z Reference Manual`_
- `FRDM-KL25Z Website`_
- `FRDM-KL25Z User Guide`_
- `FRDM-KL25Z Schematics`_
Supported Features
==================
The frdm_kl25z 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 |
+-----------+------------+-------------------------------------+
| UART | on-chip | serial port-polling; |
| | | serial port-interrupt |
+-----------+------------+-------------------------------------+
| I2C | on-chip | i2c |
+-----------+------------+-------------------------------------+
| SPI | on-chip | spi |
+-----------+------------+-------------------------------------+
| ADC | on-chip | adc |
+-----------+------------+-------------------------------------+
| FLASH | on-chip | soc flash |
+-----------+------------+-------------------------------------+
The default configuration can be found in the defconfig file:
``boards/arm/frdm_kl25z/frdm_kl25z_defconfig``
Other hardware features are not currently supported by the port.
Connections and IOs
===================
The KL25Z SoC has five pairs of pinmux/gpio controllers, and all are currently enabled
(PORTA/GPIOA, PORTB/GPIOB, PORTC/GPIOC, PORTD/GPIOD, and PORTE/GPIOE) for the FRDM-KL25Z board.
+-------+-------------+---------------------------+
| Name | Function | Usage |
+=======+=============+===========================+
| PTB2 | ADC | ADC0 channel 12 |
+-------+-------------+---------------------------+
| PTB18 | GPIO | Red LED |
+-------+-------------+---------------------------+
| PTB19 | GPIO | Green LED |
+-------+-------------+---------------------------+
| PTD1 | GPIO | Blue LED |
+-------+-------------+---------------------------+
| PTA1 | UART0_RX | UART Console |
+-------+-------------+---------------------------+
| PTA2 | UART0_TX | UART Console |
+-------+-------------+---------------------------+
| PTE24 | I2C0_SCL | I2C |
+-------+-------------+---------------------------+
| PTE25 | I2C0_SDA | I2C |
+-------+-------------+---------------------------+
| PTC4 | SPI0_PSC0 | SPI |
+-------+-------------+---------------------------+
| PTC5 | SPI0_SCK | SPI |
+-------+-------------+---------------------------+
| PTC6 | SPI0_MOSI | SPI |
+-------+-------------+---------------------------+
| PTC7 | SPI0_MISO | SPI |
+-------+-------------+---------------------------+
System Clock
============
The KL25Z SoC is configured to use the 8 MHz external oscillator on the board
with the on-chip FLL to generate a 48 MHz system clock.
Serial Port
===========
The KL25Z UART0 is used for the console.
Programming and Debugging
*************************
The FRDM-KL25Z includes the :ref:`nxp_opensda` serial and debug adapter built
into the board to provide debugging, flash programming, and serial
communication over USB.
To use the pyOCD tools with OpenSDA, follow the instructions in the
:ref:`nxp_opensda_pyocd` page using the `DAPLink FRDM-KL25Z Firmware`_. The
pyOCD tools are the default for this board, therefore it is not necessary to
set ``OPENSDA_FW=daplink`` explicitly when programming and debugging.
With these mechanisms, applications for the ``frdm_kl25z`` board
configuration can be built and flashed in the usual way (see
:ref:`build_an_application` and :ref:`application_run` for more
details).
To use the Segger J-Link tools with OpenSDA, follow the instructions
in the :ref:`nxp_opensda_jlink` page using the `Segger J-Link OpenSDA
V2.1 Firmware`_. The Segger J-Link tools are not the default for this
board, therefore it is necessary to set ``OPENSDA_FW=jlink``
explicitly in the environment before programming and debugging.
Flashing
========
This example uses the :ref:`hello_world` sample with the
:ref:`nxp_opensda_pyocd` tools.
.. zephyr-app-commands::
:zephyr-app: samples/hello_world
:board: frdm_kl25z
:goals: flash
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
Debugging
=========
You can debug an application in the usual way. Here is an example for the
:ref:`hello_world` application.
.. zephyr-app-commands::
:zephyr-app: samples/hello_world
:board: frdm_kl25z
:maybe-skip-config:
:goals: debug
.. _FRDM-KL25Z Website:
http://www.nxp.com/products/software-and-tools/hardware-development-tools/freedom-development-boards/freedom-development-platform-for-kinetis-kl14-kl15-kl24-kl25-mcus:FRDM-KL25Z?tid=vanFRDM-KL25Z
.. _FRDM-KL25Z User Guide:
http://www.nxp.com/assets/documents/data/en/user-guides/FRDMKL25ZUM.zip
.. _FRDM-KL25Z Schematics:
http://www.nxp.com/assets/downloads/data/en/schematics/FRDM-KL25Z_SCH_REV_E.pdf
.. _KL25Z Website:
http://www.nxp.com/products/microcontrollers-and-processors/arm-processors/kinetis-cortex-m-mcus/l-series-ultra-low-power-m0-plus/kinetis-kl2x-48-mhz-usb-ultra-low-power-microcontrollers-mcus-based-on-arm-cortex-m0-plus-core:KL2x?lang_cd=en
.. _KL25Z Datasheet:
http://www.nxp.com/assets/documents/data/en/data-sheets/KL25P80M48SF0.pdf
.. _KL25Z Reference Manual:
http://www.nxp.com/assets/documents/data/en/reference-manuals/KL25P80M48SF0RM.pdf
.. _DAPLink FRDM-KL25Z Firmware:
http://www.nxp.com/assets/downloads/data/en/ide-debug-compile-build-tools/OpenSDAv2.2_DAPLink_frdmkl25z_rev0242.zip
.. _Segger J-Link OpenSDA V2.1 Firmware:
https://www.segger.com/downloads/jlink/OpenSDA_V2_1.bin