boards/mikroe/clicker_2/doc/mikroe_clicker_2.rst
.. zephyr:board:: mikroe_clicker_2
Overview
MikroE Clicker 2 for STM32 is a development board containing an STM32F407_
microcontroller. It is equipped with two mikrobus sockets and furthermore has
two headers for general signal break out.
The board also has battery connection and a battery management unit on board.
It can be powered either from a battery pack, such as a LiPo or from USB.
The board is equipped with a 25MHz crystal as well as a 32.768kHz clock crystal.
Hardware
The Clicker 2 board contains the following connections:
Furthermore the board contains two LEDs and two push buttons that are connected to the microcontroller.
.. zephyr:board-supported-hw::
The two mikroBUS interfaces are aliased in the device tree so that their
peripherals can be accessed using mikrobus_N_INTERFACE so e.g. the spi on
bus 2 can be found by the alias mikrobus_2_spi. The counting corresponds
with the marking on the board.
For connections on the edge connectors, please refer to Clicker 2 for STM32 User Manual_.
Programming and Debugging
.. zephyr:board-supported-runners::
Applications for the mikroe_clicker_2 board configuration can
be built and flashed in the usual way (see :ref:build_an_application and
:ref:application_run for more details).
The initial state of the board is set to lock. When you flash, it will fail with the message:
.. code-block:: console
Error: stm32x device protected
Unlocking with openocd makes it possible to flash.
.. code-block:: console
$ openocd -f /usr/share/openocd/scripts/interface/stlink-v2.cfg
-f /usr/share/openocd/scripts/target/stm32f4x.cfg -c init
-c "reset halt" -c "stm32f4x unlock 0" -c "reset run" -c shutdown
Here is an example for the :zephyr:code-sample:hello_world application.
.. zephyr-app-commands:: :zephyr-app: samples/hello_world :board: mikroe_clicker_2 :goals: build flash
You should see the following message on the console:
.. code-block:: console
Hello World! mikroe_clicker_2
You can debug an application in the usual way. Here is an example for the
:zephyr:code-sample:hello_world application.
.. zephyr-app-commands:: :zephyr-app: samples/hello_world :board: mikroe_clicker_2 :maybe-skip-config: :goals: debug
References
.. _Clicker 2 website: https://www.mikroe.com/clicker-2-stm32f4 .. _Clicker 2 for STM32 User Manual: https://download.mikroe.com/documents/starter-boards/clicker-2/stm32f4/clicker2-stm32-manual-v100.pdf .. _STM32F407VG Website: https://www.st.com/content/st_com/en/products/microcontrollers-microprocessors/stm32-32-bit-arm-cortex-mcus/stm32-high-performance-mcus/stm32f4-series/stm32f407-417/stm32f407vg.html .. _STM32F407: https://www.st.com/resource/en/datasheet/stm32f407vg.pdf