ISO/SAE 21434 is ready

Binary ghost

This standard for road-vehicles cybersecurity engineering finally sees the light of day. It was developed under both the International Standards Organisation and the Society of Automotive Engineers, after a lot of hard work from many contributors across the industry. The standard gives a framework within which designers of vehicles, and the electronic control units within… Continue reading ISO/SAE 21434 is ready

What is an embedded system?

I just wrote a post for an Infosec site, discussing some definitions of embedded systems. I survey some existing definitions, describe why I don’t feel they represent the current state of embedded systems, and offer another: “It’s an embedded system if the end-user doesn’t control the code that it runs”. Once an end user takes… Continue reading What is an embedded system?

Why use an FPGA?

“Please help me do this on an FPGA” The question you shouldn’t ask! A common refrain on many of the internet’s finest help forums and newsgroups is “I’m trying to do x using an FPGA, help!” And very often “x” is a task which would be more optimally (by many different measures!) be performed in… Continue reading Why use an FPGA?

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More ARM FPGA

A while ago I compared Altera and Xilinx’s ARM-based FPGA combos. More information is now available publicly, so let’s see what we know now… One thing that’s hard to miss is that Altera are making a big thing of their features to support applications with more taxing reliability and safety requirements. Altera’s external DRAM interface… Continue reading More ARM FPGA

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Now running WordPress

This site is now running WordPress, rather then Drupal. Ultimately, I got fed up with the very tedious processes involved with managing a Drupal installation. This added to the fact that I somehow got the Image plugin broken such that I couldn’t upload any more images, and despite much Googling, couldn’t fix it. And this… Continue reading Now running WordPress

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Server upgraded

Parallelpoints.com is now running [Squeeze](http://www.debian.org/releases/stable/) (or [Debian](http://www.debian.org/) 6.0 as it’s more formally known).

I’m not a full-time admin, so I greatly appreciated the [Debian upgrade guide](http://www.debian.org/releases/stable/amd64/release-notes/ch-upgrading.en.html) – it reminds you of all the stuff you have known in the past, but have “swapped-out”, and what tasks to do in what order. In particular, the kernel changes from Debian 5 to 6 were significant enough that a potentially unbootable system may have resulted.

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Stopping Laserjet 5 jams

Thanks to a kit of [new rollers](http://www.daytonaplc.co.uk/products/HP%20Paper%20Feed%20Repair%20Kits.asp) from [Daytona plc](http://www.daytonaplc.co.uk/) and detailed service manual from HP for my Laserjet 5M, it’s now printing without jams again!

Should last another 100k pages now I hope

(Note to self for next time – replace the upper feed roller before the lower one as the sprockets will be easier to engage with the drive belt that way around.)

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Aerial (or antenna!) wiring

We’ve been having a bunch of building work done, and today we finally moved the TV back downstairs to the new room! Built the new TV bench, hauled all the kit downstairs, plugged in…

“No signal” said the TV.

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Interview on EEWeb

Well, [I’m “featured engineer”](http://www.eeweb.com/spotlight/interview-with-martin-thompson) on [EEWeb](http://www.eeweb.com/) today. I never expected to ever have my name featured on the same page as such luminaries as [Bob Pease](http://www.eeweb.com/spotlight/interview-with-bob-pease), [Jeri Ellsworth](http://www.eeweb.com/spotlight/interview-with-jeri-ellsworth), [Howard Johnson](http://www.eeweb.com/spotlight/interview-with-dr.-howard-johnson) or [Limor Fried](http://www.eeweb.com/spotlight/interview-with-limor-fried), to name but 4 of the “engineering household names” on that list!