We are very excited to inform you that we have introduced our new software licenses with the release of SDK v13.0. The new licenses are based on the well-known BSD license class and give more flexibility and freedom to customers while still protecting Nordic Semiconductor’s intellectual property and brand.
Software licenses are usually not the most riveting of reads and most people tend to click the ‘I Agree’ button without reading what they have agreed to. The licenses we have now introduced are very easy to read and understand, so take a few minutes to read through them...
This documentation describes the use and initialization of the Serial Wire Debug Port (SWDP) interface when writing to or reading from Flash and SRAM of the nRF52832 Rev 1. See http://infocenter.nordicsemi.com/ for more information on the IC itself.
DISCLAIMER: Not all content of this document has been verified and hence there might be some errors and flaws in the descriptions/information that follows. Please confer with the official ARM documentation to verify the information as described here. This information is provided in order to help during the implementation of a SWD debugger, but the...
Nordic has recently contributed support for the 2Mbit/s PHY, part of the Bluetooth 5.0 specification, to the Zephyr Project RTOS.
The video below shows how to configure, build and test GATT data throughput on a nRF52840 SoC running Zephyr RTOS.
The throughput measured may vary depending on the environment, but the maximum throughput observed in this video is around 1398 Kbps. Feel free to try it out yourself and join us with feedback and contributions to the Open Source project.
Our initial blog post about the Zephyr Project, complete with instructions to set up a Zephyr environment to...
Bluetooth 5 - now arriving in smartphones
As we know, Bluetooth 5 was launched last December by the Bluetooth SIG. The nRF52 Series from Nordic have always had Bluetooth 5 and its arrival in the mix for the nRF52 Series and this family of SoCs was designed early on to be able to meet the exciting new features of Bluetooth 5. Smartphones play such a key role in most Bluetooth products that their adoption of new Bluetooth features is always eagerly anticipated, as this is fundamental to the use of new Bluetooth features.
The Big News: Samsung Galaxy S8 supports Bluetooth...
Short note how to make FreeRTOS program debugging with eclipse little simpler.
If you are looking the information how to configure the whole environment see this post: https://devzone.nordicsemi.com/tutorials/7/development-with-gcc-and-eclipse/
Most low power applications stays most of the timer in idle. Ideally it would be tickless-idle. The problem begins if our program behaves strangely and we would like to stop it and check what is going on.
Lets get blinky_freertos example. Run it and halt just in random moment. Until you are very lucky you would stop somewhere in...
The first in a series of blogs that will help educate on what is most important about Bluetooth 5 and take you deeper into the details of how it works and how you can benefit most from using it.
Taking Bluetooth further, faster
Bluetooth 5 has been with us for a few months now and is proving to be as exciting in the world of Bluetooth developers we talk to as it was to us when the specification was proposed. With its core additions of considerably longer range (x4), doubled throughput and improved broadcasting bandwidth, it is no exaggeration to...
Several users have pointed out a sudden flash size increase in some of our Bluetooth examples. We decided to write a quick post here to describe the reason for this and explain how to decrease the size of the examples.
The reason for the size increase is that we added our logging module to the examples in question. Simply disable the module to decrease the size again. Logging can be turned on or off in sdk_config.h. This header file is included in all BLE examples. Remember that you can edit sdk_config using the configuration wizard.
Some examples use logging...
The biggest pain point when debugging an application on the nRF51 series is the inability to set breakpoints while the SoftDevice is active without triggering an assert. Although a workaround exists that allows the debugging process to limp along for a short amount of time after the SoftDevice complains, using breakpoints with the nRF51 is inevitably a disruptive process.
Thankfully, the nRF52 series includes support for a neat feature called Monitor Mode Debugging. When this feature is enabled, the processor will trigger a specific interrupt handler (DebugMon_Handler) instead of halting when a breakpoint is reached. This DebugMon_Handler then spins and...
Content of this blog based on the documentation of BLE Secure DFU example and Bootloader module library in our SDK. Here we provide you with step by step introduction to make it easier to follow and test Secure DFU.
The Secure DFU is the new DFU bootloader provided from nRF5 SDK v12. The old bootloader in SDKv11 and earlier is now called Legacy DFU. Secure DFU is not backward compatible with Legacy DFU.
What you would need to prepare before we start:
The new Bluetooth 5 specification promises twice the speed and 4 times the range. Doubling the speed is achieved by increasing the on-air datarate to 2Mbps, while quadrupling the range is achieved by lowering the bitrate to increase the sensitivity of the receiver. We at Nordic have made a demo showing these features with our newest SoftDevice(s) and specifically our newest chip, the nRF52840. It was showcased at CES 2017 in January.
Here is a more in depth description of the demo.
The demo is based on the ATT_MTU throughput example in SDK 13.0.0-1.alpha, which allows...
In December we published a video showing a long range test with the newly released nRF52840 chip. The video showed that the nRF52840 had excellent range, and is fully compatible with the new Long Range feature of the just released Bluetooth 5 specification. This blogpost will go into more details about how this test was done. Below is the video for those that have not seen it yet.
The nRF52832 and nRF52840 devices have a built-in NFC radio which can be used for exposing data as a dynamic NFC tag (a tag with configurable data). This can be used as a standard tag type for storing a web link or a text, to launch apps on smartphones and tablets as well as for simple and secure BLE pairing (read more here). All these features are provided by the Type 2 Tag library in the nRF5 SDK. Starting from version 12.2 of the nRF5 SDK, we expanded the NFC software to support even more features. The new Type...
There is a use case that I've seen several times recently that I find interesting due to the fact that its security requirements aren't directly addressed by the Bluetooth Low Energy (BLE) standard. It goes something like this:
I have a BLE device that multiple users can interact with. Although most of the BLE characteristics should be open, one or more 'admin' characteristics should only be modifiable if the user has permissions to change them.
I will present a simple solution using the nRF52832 with the S132 SoftDevice.
The 128-bit AES ECB peripheral provides a secure...
The Zephyr Project RTOS is a recent effort by the Linux Foundation to provide the embedded world with a free, secure and fully-featured Real Time Operating System. It is designed from the ground up to be a modern, scalable, secure and responsive RTOS with a clear focus on IoT protocols and foundations. This open source RTOS is Apache 2.0 licensed and has a fully open development model
Recently Nordic contributed ports to all of our Cortex-M based ICs (nRF51, nRF52832 and nRF52840) as well as a fully featured, open source BLE Controller (Link Layer + HCI...
It´s exciting to see that our friends at Sony Mobile Research and Incubation have released a desktop application called Otii, which supports our Power Profiler Kit. The beta version of the Otii application is cross platform and runs on Windows, Linux, and macOS. It is straight forward to install and use with the Power Profiler Kit connected through a regular USB cable.
With Otii you get a nice tool for finding out what parts of your software that is the cause for certain power consumption related behaviors. Besides all the perks of customizing your PPK measurements as in nRF6707-SW...
BLE is native supported on Android from v4.3. It has been continuously improved as Android evolving. It's getting more and more complex with additional features. It's important that a Bluetooth app should work smoothly on all Android versions, from 4.3 to the latest one. One may find it's tricky to keep track of all the issues from earlier Android versions and the changes in BLE APIs of different API levels.
To help you with this, our app developers have provided a note, discussing about most important changes and added features on newer Android version 5...
nRF-connect-Mesh PC tool allows the user to demonstrate the nRF OpenMesh and the Mesh Device Firmware Update (DFU).
The Mesh DFU will be used for nRF OpenMesh and the Bluetooth Mesh when it is made available.
The nRF OpenMesh used is v0.8.7. The tool will be updated to support the Bluetooth Mesh when it is available.
Any one of the below x 2 or more, all of the same type is best during the evaluation
Many developers might be familiar with the problems that may arise when wanting to measure current consumption, especially with applications using from a couple of µA to some mA. You most probably have to have some very expensive equipment that takes up quite a lot of space on your desktop. This often means that it is stowed away at a lab, or actually too expensive to buy. Since we have created the nRF52 Online Power Profiler, this can solve some issues, but what if the application has forgotten to turn off unnecessary power consumers, has wrong intervals between events or...
Note: It is recommended, but not necessary, to use the most recent releases of the above software.
SEGGER Embedded Studio 3.10e
Tools -> Package Manager...and install the
CMSIS-CORE Support Package
File -> Import IAR EWARM / Keil MDK Project...
Import Build Configurationwindow will pop-up...
nRF5 SDK v12.0 is now available for Nordic developers to download and use in their designs. We’ve added quite a few things this time around to help you, the big story however is the production grade introduction of secure OTA-DFU with signing.
Living in a constantly updated world
Software updates are a part of everyday life today. Barely a month passes without at least a few things we own getting a software shot in the arm from their manufacturers, be it feature improvements or resolution of issues both major and minor. I hear from those I talk to...