https://www.railab.me/enContents © 2026 <a href="mailto:raiden00@protonmail.com">raiden00 <Mateusz Szafoni></a> <a rel="license" href="http://creativecommons.org/publicdomain/mark/1.0/"> <img src="/img/common/public-domain.png" width="88" style="border-style: none;" alt="Public Domain Mark" /> </a> Thu, 07 May 2026 07:36:19 GMTNikola (getnikola.com)http://blogs.law.harvard.edu/tech/rsshttps://www.railab.me/posts/2024/1/segger-rtt-interface-nxscope/raiden00 <Mateusz Szafoni><div><p>One of my favorite things when working with Segger J-Link is <a class="reference external" href="https://www.segger.com/products/debug-probes/j-link/technology/about-real-time-transfer">RTT</a> support which significalntly improves my debugging experience. With a single interface (one USB cable), I can run:</p> <ul class="simple"> <li><p>RTT serial console to communicate with the target</p></li> <li><p>SystemView to capture system events</p></li> <li><p>gdb for general debugging</p></li> </ul> <p>The latest addition to this list is real-time data streaming with the NuttX NxScope library and RTT channel as a communication interface. This feature is supported with <a class="reference external" href="https://github.com/railab/nxscli">nxscli</a> tool since version <code class="docutils literal">0.5.1</code>. Now we can visualize and debug complex data relations much more simpler.</p> <p>This post discusses how to configure the NxScope example with NuttX to work over an RTT channel with an RTT serial console and SystemView support.</p> <p>For demonstration, we use Nordic nRF52832-DK board with a built-in J-Link OB interface, so there is no need to connect any external device.</p> <p><a href="https://www.railab.me/posts/2024/1/segger-rtt-interface-nxscope/">Read more…</a> (2 min remaining to read)</p></div>nxscopertthttps://www.railab.me/posts/2024/1/segger-rtt-interface-nxscope/Sun, 21 Jan 2024 12:00:00 GMThttps://www.railab.me/posts/2024/1/plotjuggler-with-nxscope/raiden00 <Mateusz Szafoni><div><p><a class="reference external" href="https://github.com/facontidavide/PlotJuggler">PlotJuggler</a> is a cool tool for visualizing time series data, supporting live data streaming. Since version <code class="docutils literal">0.5.1</code>, my <a class="reference external" href="https://github.com/railab/nxscli">nxscli</a> tool has included support for data streaming over UDP port, which can be easily captured by PlotJuggler.</p> <p>Let's see how to set up both tools and plot data from the NuttX <a class="reference external" href="https://github.com/apache/nuttx-apps/tree/master/logging/nxscope">NxScope library</a>.</p> <p><a href="https://www.railab.me/posts/2024/1/plotjuggler-with-nxscope/">Read more…</a> (4 min remaining to read)</p></div>nuttxnxscopeplotjugglerhttps://www.railab.me/posts/2024/1/plotjuggler-with-nxscope/Sun, 14 Jan 2024 12:00:00 GMT