# BL652 Development Kit

Contents

- BL652 Development Kit

  - Hardware

  - Configuration

  - Uploading

  - Debugging

  - Frameworks

## Hardware

Platform Nordic nRF52: The nRF52 Series are built for speed to carry out increasingly complex tasks in the shortest possible time and return to sleep, conserving precious battery power. They have a Cortex-M4F processor and are the most capable Bluetooth Smart SoCs on the market.

Microcontroller | NRF52832
Frequency | 64MHz
Flash | 512KB
RAM | 64KB
Vendor | Laird Connectivity

## Configuration

Please use `laird_bl652_dvk` ID for board option in “platformio.ini” (Project Configuration File):

    [env:laird_bl652_dvk]
    platform = nordicnrf52
    board = laird_bl652_dvk

You can override default BL652 Development Kit settings per build environment using `board_***` option, where `***` is a JSON object path from board manifest laird_bl652_dvk.json. For example, `board_build.mcu`, `board_build.f_cpu`, etc.

    [env:laird_bl652_dvk]
    platform = nordicnrf52
    board = laird_bl652_dvk

    ; change microcontroller
    board_build.mcu = nrf52832

    ; change MCU frequency
    board_build.f_cpu = 64000000L

## Uploading

BL652 Development Kit supports the next uploading protocols:

- `blackmagic`

- `cmsis-dap`

- `jlink`

- `mbed`

- `nrfjprog`

- `stlink`

Default protocol is `jlink`

You can change upload protocol using upload_protocol option:

    [env:laird_bl652_dvk]
    platform = nordicnrf52
    board = laird_bl652_dvk

    upload_protocol = jlink

## Debugging

PIO Unified Debugger - “1-click” solution for debugging with a zero configuration.

Warning

You will need to install debug tool drivers depending on your system. Please click on compatible debug tool below for the further instructions and configuration information.

You can switch between debugging Tools & Debug Probes using debug_tool option in “platformio.ini” (Project Configuration File).

BL652 Development Kit has on-board debug probe and IS READY for debugging. You don’t need to use/buy external debug probe.

Compatible Tools | On-board | Default
--- | --- | ---
Black Magic Probe |  |
CMSIS-DAP | Yes |
J-LINK | Yes | Yes
ST-LINK |  |

## Frameworks

Name | Description
--- | ---
Zephyr | The Zephyr Project is a scalable real-time operating system (RTOS) supporting multiple hardware architectures, optimized for resource constrained devices, and built with safety and security in mind.