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Mehr Sicherheit für Cortex-M Systeme mit MPU-Plus

Costa Mesa, Kalifornien, 1. März 2017

Die Sicherheit bestehender ARM Cortex-M-basierter Produkte lässt sich durch die Nutzung eines neuen Produkts von Micro Digital erheblich verbessern. MPU-Plus ™ ermöglicht eine höhere Sicherheit für bereits ausgelieferte oder zu entwickelnde Systeme durch eine effektive Nutzung der Memory Protection Unit (MPU), die in den meisten Cortex-M-Prozessoren vorhanden ist.

Excellence in Automotive HMI Design: Storyboard on NXP i.MX 8

Whether it’s commuting to and from work, chauffeuring the kids to hockey*, or running errands, we spend countless hours driving on a daily basis. Fortunately for those of us who feel like we live part-time in our cars, technology is evolving at a rapid rate to enhance the driving experience and to allow us to connect with our vehicles more seamlessly and safely.

Designing a Rich UI for Industrial Electronic Controls with Storyboard

Whether a team is creating an application for automotive, medical, industrial, or a white goods product, there’s a core set of capabilities that the UI development framework they choose to work with has to be able to deliver, regardless of the target market. When we talk with customers during their development process and when we meet designers and developers at trade shows and events we tend to hear common themes of challenges and requirements, such as:

Exploiting MQTT Using Lua

Want to learn how to exploit MQTT using Lua? I hope not.  But maybe you want to learn how to protect yourself again the exploit... not a bad idea to start from the inside out.


MQTT is a publish/subscribe protocol that has gained popularity as an IoT protocol. MQTT clients connect to a broker which is in charge of exchanging the messages sent between the connected clients. MQTT includes many features that may leave the MQTT solution open to hackers. In this article, I will show you how easy it is to find unprotected MQTT brokers on the Internet and how to eavesdrop on all messages exchanged via the unprotected brokers.

IoT made real: A Arduino ESP8266 Light Controller for your home

The Holiday Light Controller is a fun project that lets you provide public access to your outdoor lights during the holiday season. Perfect for homeowners, parties, café, restaurants, and church displays to allow admiring visitors a selection of lighting transitions such as Wave, Psychedelic, Sequence On/Off, and Overlapping commands via a mobile phone.

Here you find a detailed DIY Instructions.

Mako Server and Arduino IoT Light Controller

Setting up a Low Cost SMQ IoT Broker

In the following tutorial we will show you how easy it is to build your own IoT cloud solution. The solution will be installed on a low end Virtual Private Server (VPS) that can serve thousands of devices. For scaling up to millions of devices, a more advanced solution is required, such as Amazon Elastic Cloud or Google Cloud.

The services we have selected in this tutorial will cost you a total of $8 a year, and it includes a VPS and a domain name. We will also explain how you can optionally install an SSL certificate for the SMQ IoT broker solution.

RTOS 1x1: Semaphores and Queues

The use of a Real-Time Operating System (RTOS) is increasingly common in embedded software designs. An RTOS makes it easy to divide your code into smaller blocks, tasks, which execute seemingly in parallel and independent of each other, as described in the first article in the RTOS 101 series.

Having fully independent tasks is rarely possible in practice. In many cases, tasks need to be activated on a particular event, e.g., from an interrupt service routine or from another task requesting a service. In such cases, tasks often need to receive related input, i.e., parameters. Moreover, tasks often need to share hardware resources such as communication interfaces which can only be used by one task at a time, i.e. mutual exclusion, a type of synchronization. Inexperienced developers may try to use global variables for such purposes, but implementing thread-safe communication is tricky and a home-cooked solution may fail if a task-switch strikes at a critical point. For instance, consider this situation:

Tracealyzer 3.04 für FreeRTOS

Percepio AB, weltweit führender Entwickler von Visualisierungs-Tools für Embedded-Software-Entwickler, hat soeben eine aktualisierte Version von Tracealyzer for FreeRTOS herausgebracht. In dem neuen Release v3.0.4 wurde die in ihrem Feature-Angebot eingeschränkte Free Edition entscheidend verbessert.

Zum Beispiel ist die Aufzeichnungsdauer im Snapshot-Recording-Modus jetzt nicht mehr begrenzt, sodass ein Profiling von FreeRTOS-Tasks nun über längere Zeitspannen möglich ist.

RTOS 1x1: Task Scheduling and Analysis with Tracealyzer

The use of Real-Time Operating System (RTOS) is increasingly common in embedded software designs, as an RTOS makes it easy to divide your code into smaller blocks, tasks, which execute seemingly in parallel and independent of each other. An RTOS provides multi-tasking, in a reliable and maintainable manner, which makes it easier to design applications with multiple concurrent functions such as control, communication and HMI. The overhead of an RTOS is negligible on modern 32-bit processors and is often more than compensated for by more efficient designs enabled by multi-tasking.

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