Coursera: Development of Real-Time Systems

July 5, 2016

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A course on the theories and implementations of real-time systems is about to start on Coursera platform. The course comes from the Finnish University Åbo Akademi, and lasts 5 weeks of low workload (2-3h per week). The instructor entices the learner by showing a famous real-time system failure, during the landing of the Apollo 11 on the surface of the […]

Posted in: Embedded

STM32 Nucleo: access SD cards with C standard library

July 3, 2016

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Nucleo board wired with Ethernet shield.

The ST Nucleo is an Arduino-like board with an STM32 as the microcontroller, and many Arduino shields can be mounted on it. I recently played with an Ethernet shield for the network connection, but since the shield also contains a microSD card slot, I wanted to access the SD card to read/write files. I’d like to […]

Posted in: Embedded

Phil Koopman: Top 5 Embedded Software Problem Areas

May 31, 2016

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The following resource is a thoughtful checklist that embedded software developers can take as inspiration to improve the product. It also links to further resources (as well as the author’s book) to explore the topics and analyze in depth the rationale of some of his suggestions. Better Embedded System SW: Top 5 Embedded Software Problem Areas – Five areas to dig into […]

Posted in: Embedded

Migrated from Debian 32bit to 64bit through dual boot

May 16, 2016

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openlogo-100

The desktop where I do most of my stuff is a Debian testing 32bit. Recently Google Chrome team declared the end of support of 32bit Linux distributions, and I decided to take the occasion to migrate towards a 64bit Debian. I read some guides around, some old, some with big warnings and disclaimers, some interesting. Ultimately I […]

Posted in: Software

Inline assembly in GCC [linux-insides]

May 2, 2016

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The news site lwn just posted a guide on GCC inline assembly. The guide is written in plain colloquial language and is a great complement to GCC documentation on the matter, which is more of a reference of the various functionalities. I found that the extended form of inline assembly is a powerful way to use the machine special […]

Posted in: Embedded

Linus Torvalds interview at TED

April 11, 2016

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Tux

Chris Anderson, the creator of TED, interviews Linus Torvalds on the traits that are useful to create and maintain something remarkable as Linux. Linus appears as his usual self, joking about his own defects, and being overall very lucid in its analysis of the current status of Linux kernel and what happened to get there. He […]

Posted in: Software

Simple time synchronization for the Internet of Things

February 18, 2016

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Network-time-icon

While adding HTTPS capabilities to my STM32 Nucleo board, I needed to solve the problem of current time. This is because TLS needs to check certificate expiration date, so we need a sufficiently accurate estimation of time. So I tried to understand what could I do to ask a network server about the time. I […]

Posted in: Embedded
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