blob: 989928867532c7f28149d7c4c2c55174b74350bf [file] [log] [blame]
.. _dragino_nbsn95_board:
Dragino NBSN95 NB-IoT Sensor Node
The Dragino NBSN95 NB-IoT Sensor Node for IoT allows users to develop
applications with NB-IoT connectivity via the Quectel BC95-G.
Dragino NBSN95 enables a wide diversity of applications by exploiting
low-power communication, ARM |reg| Cortex |reg|-M0 core-based
STM32L0 Series features.
This kit provides:
- Quectel BC95-G NB-IoT
- Expansion connectors:
- Li/SOCI2 Unchargable Battery
- GPIOs exposed via screw terminals on the carrier board
- Housing
.. image:: img/dragino_nbsn95.png
:width: 531px
:align: center
:height: 354px
:alt: Dragino NBSN95
More information about the board can be found at the `Dragino NBSN95 website`_.
The STM32L072CZ SoC provides the following hardware IPs:
- Ultra-low-power (down to 0.29 ยตA Standby mode and 93 uA/MHz run mode)
- Core: ARM |reg| 32-bit Cortex |reg|-M0+ CPU, frequency up to 32 MHz
- Clock Sources:
- 1 to 32 MHz crystal oscillator
- 32 kHz crystal oscillator for RTC (LSE)
- Internal 16 MHz factory-trimmed RC ( |plusminus| 1%)
- Internal low-power 37 kHz RC ( |plusminus| 5%)
- Internal multispeed low-power 65 kHz to 4.2 MHz RC
- RTC with HW calendar, alarms and calibration
- Up to 24 capacitive sensing channels: support touchkey, linear and rotary touch sensors
- 11x timers:
- 2x 16-bit with up to 4 channels
- 2x 16-bit with up to 2 channels
- 1x 16-bit ultra-low-power timer
- 1x SysTick
- 1x RTC
- 2x 16-bit basic for DAC
- 2x watchdogs (independent/window)
- Up to 84 fast I/Os, most 5 V-tolerant.
- Memories
- Up to 192 KB Flash, 2 banks read-while-write, proprietary code readout protection
- Up to 20 KB of SRAM
- External memory interface for static memories supporting SRAM, PSRAM, NOR and NAND memories
- Rich analog peripherals (independent supply)
- 1x 12-bit ADC 1.14 MSPS
- 2x 12-bit DAC
- 2x ultra-low-power comparators
- 11x communication interfaces
- USB OTG 2.0 full-speed, LPM and BCD
- 3x I2C FM+(1 Mbit/s), SMBus/PMBus
- 4x USARTs (ISO 7816, LIN, IrDA, modem)
- 6x SPIs (4x SPIs with the Quad SPI)
- 7-channel DMA controller
- True random number generator
- CRC calculation unit, 96-bit unique ID
- Development support: serial wire debug (SWD), JTAG, Embedded Trace Macrocell |trade|
More information about STM32L072CZ can be found here:
- `STM32L072CZ on`_
- `STM32L0x2 reference manual`_
Supported Features
The Zephyr Dragino NBSN95 Board board configuration supports the following hardware features:
| Interface | Controller | Driver/Component |
| UART | on-chip | serial port-polling; |
| | | serial port-interrupt |
| PINMUX | on-chip | pinmux |
| GPIO | on-chip | gpio |
Other hardware features are not yet supported on this Zephyr port.
The default configuration can be found in the defconfig file:
Connections and IOs
Dragino NBSN95 Board has GPIO controllers. These controllers are responsible for pin muxing,
input/output, pull-up, etc.
Available pins:
For detailed information about available pins please refer to `Dragino NBSN95 website`_.
Default Zephyr Peripheral Mapping:
- UART_1_TX : PB6
- UART_1_RX : PB7
- UART_2_TX : PA2
- UART_2_RX : PA3
System Clock
Dragino NBSN95 System Clock is at 32MHz,
Serial Port
Dragino NBSN95 board has 2 U(S)ARTs. The Zephyr console output is assigned to UART1.
Default settings are 115200 8N1.
Programming and Debugging
Applications for the ``dragino_nbsn95`` board configuration can be built and
flashed in the usual way (see :ref:`build_an_application` and
:ref:`application_run` for more details).
Dragino NBSN95 board requires an external debugger.
Flashing an application to Dragino NBSN95
Here is an example for the :ref:`hello_world` application.
Connect the Dragino NBSN95 to a STLinkV2 to your host computer using the USB port, then
run a serial host program to connect with your board. For example:
.. code-block:: console
$ minicom -D /dev/ttyACM0
Then build and flash the application:
.. zephyr-app-commands::
:zephyr-app: samples/hello_world
:board: dragino_nbsn95
:goals: build flash
You should see the following message on the console:
.. code-block:: console
$ Hello World! dragino_nbsn95
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: dragino_nbsn95
:goals: debug
.. _Dragino NBSN95 website:
.. _STM32L072CZ on
.. _STM32L0x2 reference manual: