Szymon Szantula / nrf52_dk-template-mbed

NRF52_DK template for Mbed (VS CODE + MBED CLI)

NRF52 mbed template for Visual Studio Code and MBED CLI

Web resources

• https://marketplace.visualstudio.com/items?itemName=marus25.cortex-debug
• https://marcelball.ca/projects/cortex-debug/
• https://marcelball.ca/projects/cortex-debug/cortex-debug-launch-configurations/
• https://github.com/ARMmbed/mbed-os
• https://github.com/ARMmbed/mbed-os-example-ble
• https://os.mbed.com/docs/mbed-cordio/19.02/introduction/index.html
• https://os.mbed.com/docs/mbed-os/v5.11/apis/bluetooth.html

Prerequisites

• Visual Studio Code IDE
• mbed-cli tools
• GNU Arm Embedded version 6 toolchain
• nRF5x Command Line Tools

Setup

1. Create nrf52 workspace

$ mkdir nrf52-workspace && cd nrf52-workspace

2. Import mbed-os to the directory

$ mbed import mbed-os

3. Update mbed-os to tag mbed-os-5.13.1

$ cd mbed-os
$ mbed update mbed-os-5.13.1

4. Create .mbedignore in mbed-os directory and add:

features/cellular/*
features/cryptocell/*
features/deprecated_warnings/*
features/device_key/*
features/FEATURE_BOOTLOADER/*
features/frameworks/*
features/lorawan/*
features/lwipstack/*
features/nanostack/*
features/netsocket/*
features/nfc/*
features/unsupported/*
features/storage/*
components/wifi/*
components/802.15.4_RF/*
components/storage/*
components/TARGET_PSA/*
usb/*

5. Set path to mbed-os in Mbed CLI

$ mbed config -G MBED_OS_DIR <path>/nrf52-workspace/mbed-os

6. Import template

$ git clone https://github.com/byq77/nrf52-template-mbed.git

7. Set path to arm-none-eabi-gcc in settings.json

{
    "C_Cpp.default.compilerPath": "C:\\Program Files (x86)\\GNU Tools ARM Embedded\\6 2017-q2-update\\bin\\arm-none-eabi-gcc.exe",
}

Tasks

To compile/flash: * CTRL + SHIFT + P, type Tasks: Run Task and select task.

Debug

To debug: * install extension: https://marketplace.visualstudio.com/items?itemName=marus25.cortex-debug * compile and flash DEBUG firmware * CTRL + SHIFT + D and click on start debug button

Mbed Cardio

Mbed Cardio supports BLE 5.0 features.

To use Mbed Cordio Link Layer instead Nordic SoftDevice in mbed_app.json add:

    "target.features_add": ["BLE"],
    "target.extra_labels_add": ["CORDIO", "CORDIO_LL", "SOFTDEVICE_NONE", "NORDIC_CORDIO"],
    "target.extra_labels_remove": ["SOFTDEVICE_COMMON", "SOFTDEVICE_S132_FULL", "NORDIC_SOFTDEVICE"],

DFU bootloader

https://os.mbed.com/users/kord123/notebook/fota-mbed-app-to-nrf52_dk-with-nordic-dfu-boot-loa/