.. _olimex_stm32_h407:

OLIMEX-STM32-H407
#################

Overview
********

The OLIMEX-STM32-H407 is open source hardware and is based on
the STMicroelectronics STM32F407ZG ARM Cortex-M4 CPU.

.. figure:: img/olimex_stm32_h407.png
     :width: 540px
     :align: center
     :height: 454px
     :alt: OLIMEX-STM32-H407

     OLIMEX-STM32-H407

Hardware
********

Information about the board can be found at the
`OLIMEX-STM32-H407 website`_ and `OLIMEX-STM32-H407 user manual`_.
The `ST STM32F407ZG Datasheet`_ contains the processor's
information and the datasheet.

Supported Features
==================

The olimex_stm32_h407 board configuration supports the following
hardware features:

+-----------+------------+----------------------+
| Interface | Controller | Driver/Component     |
+===========+============+======================+
| NVIC      | on-chip    | nested vectored      |
|           |            | interrupt controller |
+-----------+------------+----------------------+
| SYSTICK   | on-chip    | system clock         |
+-----------+------------+----------------------+
| UART      | on-chip    | serial port          |
+-----------+------------+----------------------+
| GPIO      | on-chip    | gpio                 |
+-----------+------------+----------------------+

Other hardware features are not supported by the Zephyr kernel.

Pin Mapping
===========

.. figure:: img/olimex-stm32-h407-front.png
     :width: 739px
     :align: center
     :height: 530px
     :alt: OLIMEX-STM32-H407 connectors

     OLIMEX-STM32-H407 connectors

LED
---

* LED (green) = PC13
* PWR_LED (red) = power

Push buttons
------------

* BUT = PA0
* RST = NRST

External Connectors
-------------------

JTAG/SWD debug

+-------+--------------+-------+--------------+
| PIN # | Signal Name  | Pin # | Signal Name  |
+=======+==============+=======+==============+
| 1     | +3.3V        | 11    | -            |
+-------+--------------+-------+--------------+
| 2     | +3.3V        | 12    | GND          |
+-------+--------------+-------+--------------+
| 3     | PB4 / TRST   | 13    | PB3 / TDO    |
+-------+--------------+-------+--------------+
| 4     | GND          | 14    | GND          |
+-------+--------------+-------+--------------+
| 5     | PA15 / TDI   | 15    | PB4 / TRST   |
+-------+--------------+-------+--------------+
| 6     | GND          | 16    | GND          |
+-------+--------------+-------+--------------+
| 7     | PA13 / TMS   | 17    | -            |
+-------+--------------+-------+--------------+
| 8     | GND          | 18    | GND          |
+-------+--------------+-------+--------------+
| 9     | PA14 / TCK   | 19    | +5V_JTAG     |
+-------+--------------+-------+--------------+
| 10    | GND          | 20    | GND          |
+-------+--------------+-------+--------------+

UEXT

+-------+-----------------------+----------------+
| PIN # | Wire   Name           | STM32F407 port |
+=======+=======================+================+
| 1     | +3.3V                 | -              |
+-------+-----------------------+----------------+
| 2     | GND                   | -              |
+-------+-----------------------+----------------+
| 3     | PC6/USART6_TX         | PC6            |
+-------+-----------------------+----------------+
| 4     | PC7/USART6_RX         | PC7            |
+-------+-----------------------+----------------+
| 5     | PB8/I2C1_SCL          | PB8            |
+-------+-----------------------+----------------+
| 6     | PB9/I2C1_SDA          | PB9            |
+-------+-----------------------+----------------+
| 7     | PC2/SPI2_MISO         | PC2            |
+-------+-----------------------+----------------+
| 8     | PC3/SPI2_MOSI         | PC3            |
+-------+-----------------------+----------------+
| 9     | PB10/SPI_SCK/UART3_TX | PB10           |
+-------+-----------------------+----------------+
| 10    | RB7/UEXT_CS           | PB7            |
+-------+-----------------------+----------------+

Arduino Headers
---------------

CON1 power

+-------+--------------+-------------------------+
| Pin   | Signal Name  | STM32F407 Pin#          |
+=======+==============+=========================+
| RST   | RESET        | 25                      |
+-------+--------------+-------------------------+
| 3V3   | VCC (3V3)    | N/A                     |
+-------+--------------+-------------------------+
| 5V    | VDD (5V)     | N/A                     |
+-------+--------------+-------------------------+
| GND   | GND          | N/A                     |
+-------+--------------+-------------------------+
| GND   | GND          | N/A                     |
+-------+--------------+-------------------------+
| VIN   | VIN          | N/A                     |
+-------+--------------+-------------------------+

CON2 analog

+-------+--------------+-------------------------+
| Pin   | Signal Name  | STM32F407 Pin#          |
+=======+==============+=========================+
| A0    | PC0          | 26                      |
+-------+--------------+-------------------------+
| A1    | PC1          | 27                      |
+-------+--------------+-------------------------+
| A2    | PB0          | 46                      |
+-------+--------------+-------------------------+
| A3    | PB1          | 47                      |
+-------+--------------+-------------------------+
| A4    | PC4          | 44                      |
+-------+--------------+-------------------------+
| A5    | PC5          | 45                      |
+-------+--------------+-------------------------+

CON3 digital

+-------+---------------+-------------------------+
| Pin   | Signal Name   | STM32F407 Pin#          |
+=======+===============+=========================+
| D0    | PA3/USART2_RX | 37                      |
+-------+---------------+-------------------------+
| D1    | PA2/USART2_TX | 36                      |
+-------+---------------+-------------------------+
| D2    | PG7           | 92                      |
+-------+---------------+-------------------------+
| D3    | PG8           | 93                      |
+-------+---------------+-------------------------+
| D4    | PG12          | 127                     |
+-------+---------------+-------------------------+
| D5    | PG13          | 128                     |
+-------+---------------+-------------------------+
| D6    | PG14          | 129                     |
+-------+---------------+-------------------------+
| D7    | PG15          | 132                     |
+-------+---------------+-------------------------+

CON4 digital

+-------+--------------+-------------------------+
| Pin   | Signal Name  | STM32F407 Pin#          |
+=======+==============+=========================+
| D8    | PA1          | 35                      |
+-------+--------------+-------------------------+
| D9    | PB11         | 70                      |
+-------+--------------+-------------------------+
| D10   | PA4          | 40                      |
+-------+--------------+-------------------------+
| D11   | PA7          | 43                      |
+-------+--------------+-------------------------+
| D12   | PA6          | 42                      |
+-------+--------------+-------------------------+
| D13   | PA5          | 41                      |
+-------+--------------+-------------------------+
| GND   | AGND         | 31                      |
+-------+--------------+-------------------------+
| AREF  | AREF         | 32                      |
+-------+--------------+-------------------------+

PD

+-------+--------------+-------+--------------+
| PIN # | Signal Name  | Pin # | Signal Name  |
+=======+==============+=======+==============+
| 1     | +3.3V        | 11    | PD8          |
+-------+--------------+-------+--------------+
| 2     | GND          | 12    | PD9          |
+-------+--------------+-------+--------------+
| 3     | PD0          | 13    | PD10         |
+-------+--------------+-------+--------------+
| 4     | PD1          | 14    | PD11         |
+-------+--------------+-------+--------------+
| 5     | PD2/SD_CMD   | 15    | PD12         |
+-------+--------------+-------+--------------+
| 6     | PD3          | 16    | PD13         |
+-------+--------------+-------+--------------+
| 7     | PD4          | 17    | PD14         |
+-------+--------------+-------+--------------+
| 8     | PD5          | 18    | PD15         |
+-------+--------------+-------+--------------+
| 9     | PD6          | 19    | +5V          |
+-------+--------------+-------+--------------+
| 10    | PD7          | 20    | GND          |
+-------+--------------+-------+--------------+

PE

+-------+--------------+-------+--------------+
| PIN # | Signal Name  | Pin # | Signal Name  |
+=======+==============+=======+==============+
| 1     | +3.3V        | 11    | PE8          |
+-------+--------------+-------+--------------+
| 2     | GND          | 12    | PE9          |
+-------+--------------+-------+--------------+
| 3     | PE0          | 13    | PE10         |
+-------+--------------+-------+--------------+
| 4     | PE1          | 14    | PE11         |
+-------+--------------+-------+--------------+
| 5     | PE2          | 15    | PE12         |
+-------+--------------+-------+--------------+
| 6     | PE3          | 16    | PE13         |
+-------+--------------+-------+--------------+
| 7     | PE4          | 17    | PE14         |
+-------+--------------+-------+--------------+
| 8     | PE5          | 18    | PE15         |
+-------+--------------+-------+--------------+
| 9     | PE6          | 19    | +5V          |
+-------+--------------+-------+--------------+
| 10    | PE7          | 20    | GND          |
+-------+--------------+-------+--------------+

PF

+-------+--------------+-------+--------------+
| PIN # | Signal Name  | Pin # | Signal Name  |
+=======+==============+=======+==============+
| 1     | +3.3V        | 11    | PF8          |
+-------+--------------+-------+--------------+
| 2     | GND          | 12    | PF9          |
+-------+--------------+-------+--------------+
| 3     | PF0          | 13    | PF10         |
+-------+--------------+-------+--------------+
| 4     | PF1          | 14    | PF11         |
+-------+--------------+-------+--------------+
| 5     | PF2          | 15    | PF12         |
+-------+--------------+-------+--------------+
| 6     | PF3          | 16    | PF13         |
+-------+--------------+-------+--------------+
| 7     | PF4          | 17    | PF14         |
+-------+--------------+-------+--------------+
| 8     | PF5          | 18    | PF15         |
+-------+--------------+-------+--------------+
| 9     | PF6          | 19    | +5V          |
+-------+--------------+-------+--------------+
| 10    | PF7          | 20    | GND          |
+-------+--------------+-------+--------------+

PG

+-------+--------------+-------+--------------+
| PIN # | Signal Name  | Pin # | Signal Name  |
+=======+==============+=======+==============+
| 1     | +3.3V        | 11    | PG8/D3       |
+-------+--------------+-------+--------------+
| 2     | GND          | 12    | PG9          |
+-------+--------------+-------+--------------+
| 3     | PG0          | 13    | PG10         |
+-------+--------------+-------+--------------+
| 4     | PG1          | 14    | PG11         |
+-------+--------------+-------+--------------+
| 5     | PG2          | 15    | PG12/D4      |
+-------+--------------+-------+--------------+
| 6     | PG3          | 16    | PG13/D5      |
+-------+--------------+-------+--------------+
| 7     | PG4          | 17    | PG14/D6      |
+-------+--------------+-------+--------------+
| 8     | PG5          | 18    | PG15/D7      |
+-------+--------------+-------+--------------+
| 9     | PG6          | 19    | +5V          |
+-------+--------------+-------+--------------+
| 10    | PG7/D2       | 20    | GND          |
+-------+--------------+-------+--------------+

System Clock
============

OLIMEX-STM32-H407 has two external oscillators. The frequency of
the slow clock is 32.768 kHz. The frequency of the main clock
is 12 MHz. The processor can setup HSE to drive the master clock,
which can be set as high as 168 MHz.

Programming and Debugging
*************************
The OLIMEX-STM32-H407 board does not include an embedded debug tool
interface. You will need to use ST tools or an external JTAG probe.
In the following examples the Olimex ARM-USB-OCD-H is used.

If you have an external JTAG probe compliant with the default Zephyr OpenOCD
configuration, however, then applications for the ``olimex_stm32_h407`` board
configuration can be built and flashed in the usual way (see
:ref:`build_an_application` and :ref:`application_run` for more details).

Flashing an application to the Olimex-STM32-H407
================================================

Connect the ARM-USB-OCD-H debugger to your host computer and to the JTAG port
of the OLIMEX-STM32-H407 board. Then build and flash an application.

Here is an example for the :ref:`hello_world` application.

.. zephyr-app-commands::
   :zephyr-app: samples/hello_world
   :board: olimex_stm32_h407
   :goals: build flash

Run a serial host program to connect with your board:

.. code-block:: console

   $ minicom -D /dev/ttyUSB0

After resetting the board, you should see the following message:

.. code-block:: console

   ***** BOOTING ZEPHYR OS v1.11.0 - BUILD: Mar 12 2018 03:12:40 *****
   Hello World! arm


Debugging
=========

Provided that you have a JTAG probe, 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: olimex_stm32_h407
   :maybe-skip-config:
   :goals: debug

.. _OLIMEX-STM32-H407 website:
   https://www.olimex.com/Products/ARM/ST/STM32-H407/open-source-hardware

.. _OLIMEX-STM32-H407 user manual:
   https://www.olimex.com/Products/ARM/ST/STM32-H407/resources/STM32-H407.pdf

.. _ST STM32F407ZG Datasheet:
   http://www.st.com/resource/en/reference_manual/dm00031020.pdf