249 lines
6.5 KiB
ReStructuredText
249 lines
6.5 KiB
ReStructuredText
.. _96b_stm32_sensor_mez:
|
|
|
|
96Boards STM32 Sensor Mezzanine
|
|
###############################
|
|
|
|
Overview
|
|
********
|
|
|
|
96Boards STM32 Sensor Mezzanine is based on the ST Microelectronics
|
|
STM32F446VE Cortex M4 CPU.
|
|
|
|
This board acts as a mezzanine platform for all 96Boards CE compliant
|
|
boards. It can also be used as a standalone board.
|
|
|
|
.. figure:: img/96b_stm32_sensor_mez.png
|
|
:align: center
|
|
:alt: 96Boards STM32 Sensor Mezzanine
|
|
|
|
96Boards STM32 Sensor Mezzanine
|
|
|
|
Hardware
|
|
********
|
|
|
|
96Boards STM32 Sensor Mezzanine provides the following hardware components:
|
|
|
|
- STM32F446VE in LQFP100 package
|
|
- ARM |reg| 32-bit Cortex |reg|-M4 CPU with FPU
|
|
- 180 MHz max CPU frequency
|
|
- 1.8V work voltage
|
|
- 512 KB Flash
|
|
- 128 KB SRAM
|
|
- On board sensors:
|
|
|
|
- Temperature/Pressure: STMicro LPS22HB
|
|
- Accelerometer/Gyroscope: STMicro LSM6DS3H
|
|
- Magnetometer: STMicro LIS3MDL
|
|
- Microphone: STMicro MP34DT01
|
|
|
|
- 3User LEDs
|
|
- GPIO with external interrupt capability
|
|
- UART
|
|
- I2C (2)
|
|
- SPI (3)
|
|
- I2S (1)
|
|
|
|
Supported Features
|
|
==================
|
|
|
|
The Zephyr 96b_stm32_sensor_mez board configuration supports the following
|
|
hardware features:
|
|
|
|
+-----------+------------+-------------------------------------+
|
|
| Interface | Controller | Driver/Component |
|
|
+===========+============+=====================================+
|
|
| NVIC | on-chip | nested vector interrupt controller |
|
|
+-----------+------------+-------------------------------------+
|
|
| SYSTICK | on-chip | system clock |
|
|
+-----------+------------+-------------------------------------+
|
|
| UART | on-chip | serial port |
|
|
+-----------+------------+-------------------------------------+
|
|
| GPIO | on-chip | gpio |
|
|
+-----------+------------+-------------------------------------+
|
|
| PINMUX | on-chip | pinmux |
|
|
+-----------+------------+-------------------------------------+
|
|
| FLASH | on-chip | flash |
|
|
+-----------+------------+-------------------------------------+
|
|
| SPI | on-chip | spi |
|
|
+-----------+------------+-------------------------------------+
|
|
| I2C | on-chip | i2c |
|
|
+-----------+------------+-------------------------------------+
|
|
| PWM | on-chip | pwm |
|
|
+-----------+------------+-------------------------------------+
|
|
| I2S | on-chip | i2s |
|
|
+-----------+------------+-------------------------------------+
|
|
|
|
The default board configuration can be found in the defconfig file:
|
|
|
|
``boards/arm/96b_stm32_sensor_mez/96b_stm32_sensor_mez_defconfig``
|
|
|
|
Connections and IOs
|
|
===================
|
|
|
|
LED
|
|
---
|
|
|
|
- LED1 / User1 LED = PD10
|
|
- LED2 / User2 LED = PD11
|
|
- LED3 / User3 LED = PD12
|
|
|
|
Push buttons
|
|
------------
|
|
|
|
- BUTTON = RST (BT1)
|
|
- BUTTON = USR (BT2)
|
|
|
|
System Clock
|
|
============
|
|
|
|
96Boards STM32 Sensor Mezzanine can be driven by an internal oscillator as
|
|
well as the main PLL clock. In default board configuration, the 16MHz external
|
|
oscillator is used to drive the main PLL clock to generate a System Clock
|
|
(SYSCLK) at 84MHz. On the bus side, AHB/APB2 clocks runs at 84MHz, while APB1
|
|
clock runs at 42MHz.
|
|
|
|
Serial Port
|
|
===========
|
|
|
|
On 96Boards STM32 Sensor Mezzanine, Zephyr console output is assigned to UART4
|
|
exposed via on-board Micro USB connector. Default settings are 115200 8N1.
|
|
|
|
The default USART mappings for the remaining ones are:
|
|
|
|
- USART1: Connected to AP via UART0 on the 96Boards Low-Speed Header.
|
|
- TX: PA9
|
|
- RX: PA10
|
|
|
|
- USART2: Connected to D0(RX) and D1(TX) on the Arduino Header.
|
|
- TX: PD5
|
|
- RX: PD6
|
|
|
|
- USART3: Broken out to Grove connector J10.
|
|
- TX: PD8
|
|
- RX: PD9
|
|
|
|
I2C
|
|
---
|
|
|
|
96Boards STM32 Sensor Mezzanine board has up to 3 I2Cs. The default I2C
|
|
mapping is:
|
|
|
|
- I2C1_SCL : PB6
|
|
- I2C1_SDA : PB7
|
|
- I2C2_SCL : PB10
|
|
- I2C2_SDA : PC12
|
|
|
|
I2C2 goes to the Groove connectors and can be used to attach external sensors.
|
|
|
|
SPI
|
|
---
|
|
96Boards STM32 Sensor Mezzanine board has 3 SPIs. SPI1 is used in slave mode
|
|
as the communication bus with the AP. SPI2 is used in master mode to control
|
|
the LSM6DS3H sensor. SPI4 is broken out to Grove Connector J5.
|
|
The default SPI mapping is:
|
|
|
|
- SPI1_NSS : PA4
|
|
- SPI1_SCK : PA5
|
|
- SPI1_MISO : PA6
|
|
- SPI1_MOSI : PA7
|
|
- SPI2_NSS : PB9
|
|
- SPI2_SCK : PD3
|
|
- SPI2_MISO : PB14
|
|
- SPI2_MOSI : PB15
|
|
- SPI4_NSS : PE11
|
|
- SPI4_SCK : PE12
|
|
- SPI4_MISO : PE13
|
|
- SPI4_MOSI : PE14
|
|
|
|
PWM
|
|
---
|
|
96Boards STM32 Sensor Mezzanine board exposes 6 PWM channels on the Arduino
|
|
connector. The default PWM mapping is:
|
|
|
|
- PWM3_CH1 : PB4 : D9
|
|
- PWM3_CH3 : PC8 : D3
|
|
- PWM4_CH3 : PD14 : D6
|
|
- PWM4_CH4 : PD15 : D5
|
|
- PWM9_CH1 : PE5 : D12
|
|
- PWM9_CH2 : PE6 : D11
|
|
|
|
I2S
|
|
---
|
|
|
|
96Boards STM32 Sensor Mezzanine board exposes 1 I2S port which is connected
|
|
to the on-board ST MP34DT01 DMIC. The default I2S mapping is:
|
|
|
|
- I2S2_SD : PC1
|
|
- I2S2_CK : PC7
|
|
|
|
Programming and Debugging
|
|
*************************
|
|
|
|
Building
|
|
========
|
|
|
|
Here is an example for building the :ref:`hello_world` application.
|
|
|
|
.. zephyr-app-commands::
|
|
:zephyr-app: samples/hello_world
|
|
:board: 96b_stm32_sensor_mez
|
|
:goals: build
|
|
|
|
Flashing
|
|
========
|
|
|
|
96Boards STM32 Sensor Mezzanine board includes an ST-LINK/V2-1 embedded
|
|
debug tool interface. This interface is supported by the openocd version
|
|
included in the Zephyr SDK.
|
|
|
|
Flashing an application to 96Boards STM32 Sensor Mezzanine
|
|
----------------------------------------------------------
|
|
|
|
Here is an example for the :ref:`hello_world` application.
|
|
|
|
Run a serial host program to connect with your 96Boards STM32 Sensor Mezzanine
|
|
board.
|
|
|
|
.. code-block:: console
|
|
|
|
$ minicom -b 115200 -D /dev/ttyACM0
|
|
|
|
Build and flash the application:
|
|
|
|
.. zephyr-app-commands::
|
|
:zephyr-app: samples/hello_world
|
|
:board: 96b_stm32_sensor_mez
|
|
:goals: build flash
|
|
|
|
You should see the following message on the console:
|
|
|
|
.. code-block:: console
|
|
|
|
$ Hello World! 96b_stm32_sensor_mez
|
|
|
|
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: 96b_stm32_sensor_mez
|
|
:maybe-skip-config:
|
|
:goals: debug
|
|
|
|
References
|
|
**********
|
|
|
|
.. target-notes::
|
|
|
|
.. _96Boards STM32 Sensor Mezzanine website:
|
|
https://www.96boards.org/documentation/mezzanine/stm32/
|
|
|
|
.. _STM32F446VE on www.st.com:
|
|
http://www.st.com/en/microcontrollers/stm32f446ve.html
|
|
|
|
.. _STM32F446 reference manual:
|
|
http://www.st.com/resource/en/reference_manual/dm00135183.pdf
|