This is the documentation for the latest (master) development branch of Zephyr. If you are looking for the documentation of previous releases, use the drop-down menu on the left and select the desired version.

u-blox EVK-ANNA-B11x

Overview

The u-blox ANNA-B1 Evaluation Kit hardware is a Bluetooth low energy module based on the Nordic Semiconductor nRF52832 ARM Cortex-M4F CPU and has support for the following features:

  • ADC

  • CLOCK

  • FLASH

  • GPIO

  • I2C

  • MPU

  • NVIC

  • PWM

  • RADIO (Bluetooth Low Energy)

  • RTC

  • Segger RTT (RTT Console)

  • SPI

  • UART

  • WDT

../../../../_images/EVK-ANNA-B112.png

EVK ANNA-B1

More information about the ANNA-B1 module and the EVK-ANNA-B1 can be found at ANNA-B1 product page 1 and EVK-ANNA-B1 product page 2.

Supported Features

The ubx_evkannab1_nrf52832 board configuration supports the following hardware features:

Interface

Controller

Driver/Component

ADC

on-chip

adc

CLOCK

on-chip

clock_control

FLASH

on-chip

flash

GPIO

on-chip

gpio

I2C(M)

on-chip

i2c

MPU

on-chip

arch/arm

NVIC

on-chip

arch/arm

PWM

on-chip

pwm

RADIO

on-chip

Bluetooth Low Energy

RTC

on-chip

system clock

RTT

Segger

console

SPI(M/S)

on-chip

spi

UART

on-chip

serial

WDT

on-chip

watchdog

Other hardware features are not supported by the Zephyr kernel. See EVK-ANNA-B1 product page 2 and ANNA-B1 Data Sheet 3 for a complete list of EVK ANNA-B1 hardware features.

Connections and IOs

LED

  • LED0 (red) = P0.27

  • LED1 (green) = P0.25

  • LED2 (blue) = P0.26

Push buttons

  • BUTTON1 = SW1 = P0.25

  • BUTTON2 = SW2 = P0.24

General information on module pin numbering

The numbering of the pins on the module and EVK do not follow the GPIO numbering on the nRF52832 SoC. Please see the ANNA-B1 Data Sheet 3 for information on how to map ANNA-B1 pins to the pin numbering on the nRF52832 SoC.

The reason for this is the u-blox module family concept where different modules share the same pinout and can be interchanged.

Programming and Debugging

Applications for the ubx_evkannab1_nrf52832 board configuration can be built and flashed in the usual way (see Building an Application and Run an Application for more details); however, the standard debugging targets are not currently available.

Flashing

Build and flash applications as usual (see Building an Application and Run an Application for more details).

Here is an example for the Hello World application.

Open a terminal program to the USB Serial Port installed when connecting the board and listen for output.

Settings: 115200, 8N1, no flow control.

Then build and flash the application in the usual way.

# From the root of the zephyr repository
west build -b ubx_evkannab1_nrf52832 samples/hello_world
west flash

Debugging

Refer to the Nordic nRF5x Segger J-Link page to learn about debugging boards containing a Nordic Semiconductor chip with a Segger IC.

Testing the LEDs and buttons in the EVK NINA-B11x

There are 2 samples that allow you to test that the buttons (switches) and LEDs on the board are working properly with Zephyr:

samples/basic/blinky
samples/basic/button

You can build and flash the examples to make sure Zephyr is running correctly on your board. The button and LED definitions can be found in boards/arm/ubx_evkannab1_nrf52832/ubx_evkannab1_nrf52832.dts.

Note that the buttons on the EVK-ANNA-B1 are marked SW1 and SW2, which are named sw0 and sw1 in the dts file. Also note that the SW1 button and the green LED are connected on HW level.