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Embedded Software Blog

Posts tagged with 'Low Power'

21 Jan, 2013

Designing a low power CPU

Posted by Colin Walls

Colin Walls First up, please remember that I am a software guy, not a chip designer. Please read this posting with that in mind. I was chatting with someone at a conference recently and they planted an idea in my brain. I am not sure what to do with the idea, so I thought that I would exercise it here. The topic was the consideration of power consumption in embedded systems – a subject I have written about … Read More

Low Power

10 Dec, 2012

In the news

Posted by Colin Walls

Colin Walls It is quite common, as I am sure it is for you, that someone asks me what I do for a living. Most of the time I try to get away with just saying that I work for a software company. If pressed for more detail, I end up explaining what embedded systems are all about. Sometimes, when really pushed, I talk about how I actually spend my time – writing articles, do webinars, presenting at conferences, … Read More

IP-SoC, Low Power, Power Management

10 Dec, 2012

Kamran Shah

Collin Walls gave a recent keynote at the IP-SOC 2012 Conference titled “Power is now a Software Issue”. The keynote provides a nice overview of software considerations including hardware selection, use cases, the role of the operating system, BSPs and drivers as well as application development.  

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Low Power

19 Nov, 2012

Power and compilers at the NMI

Posted by Colin Walls

Colin Walls I recently attended an event focused on power and embedded software hosted by the NMI in the UK, where I had been invited to make a presentation. My session was titled “Power Management in a Real Time Operating System”. If you would like a copy of the slides, please email. Of course, apart from presenting myself, I was interested in the other sessions, in particular one about compilers and … Read More

Low Power, compiler, Power Management, NMI

17 Sep, 2012

ESC Boston

Posted by Colin Walls

Colin Walls This week I am making a flying visit to DESIGN East [a.k.a. ESC Boston] to present a couple of classes. When I say “flying”, I am not alluding to my mode of transportation, but the duration of my visit. My first paper is Wednesday afternoon and my second is lunchtime on Thursday; I fly in Wednesday morning and out again Thursday evening. I even manage to pack in some other activity while … Read More

DESIGN East, RTOS, Low Power, Nucleus

3 Sep, 2012

The Power Pyramid

Posted by Colin Walls

Colin Walls Power consumption of embedded systems is currently a hot topic – one I have posted on several times before. With the conference season coming up, I am working on a few papers that address this subject and I will talk about those nearer the time. However, there is one aspect of designing for low power that I thought it would be worthwhile putting under the spotlight. I want to introduce the “Power … Read More

Low Power, Nucleus

23 Jul, 2012

Going to sleep

Posted by Colin Walls

Colin Walls Once again, I am thinking about embedded software and low power design, as I have discussed before. I still find it interesting that a characteristic of electronic devices, which until only recently would have been considered purely a hardware issue, is now very much on the agenda for software developers. The challenge now is to keep up with the capabilities provided by the chip makers … There … Read More

Low Power, Nucleus, RTOS

9 Jul, 2012

A more powerful phone

Posted by Colin Walls

Colin Walls The subject of power in embedded systems just does not seem to go away – like my postings here and here. And I do not see the situation changing any time soon. If it is not design consideration for your current project, I promise that it will be on your agenda before long. As smart phones become increasingly ubiquitous, it seems worthwhile considering how concerns about power have influenced their … Read More

Low Power

26 Jun, 2012

Power Suckers

Posted by Colin Walls

Colin Walls I have often observed that the world of embedded software is usually dominated by a small number of “fashionable” topics – technology that everybody is talking and/or concerned about. The key one just now, which I have discussed before, is the influence that software has on device power consumption. This is a topic to which I will certainly return. A number of the Mentor Embedded team … Read More

Freescale, FTF, RTOS, Low Power, Nucleus

11 Jun, 2012

Freescale Technology Forum

Posted by Colin Walls

Colin Walls Nowadays, there is a perception that the higher end embedded CPU is dominated by ARM. Obviously, these devices are very popular, as evidenced by the various ARM Tech Con events around the world. However, I remember the world before ARM, when “embedded 32-bit device” meant Motorola 68000 family. Motorola Semiconductor became Freescale, who are still a force to be reckoned with. Freescale’s … Read More

Freescale, FTF, Low Power, Nucleus

19 Mar, 2012

Welcome to my little corner of the world

Posted by Chris Hallinan

Chris Hallinan I always start the New Year thinking I should get in shape and lose a few pounds (That’s lbs not £ - I’d very much like to gain some £’s). The last couple of years the whole family has signed up for a local fun run that takes place in March. This creates that classic compelling event that means we have to get off the sofa and do a bit of training. Last year I was pleased that I managed to keep … Read More

Low Power, Tuesday Tech Talks, Energy Efficiency

6 Jun, 2011

System power

Posted by Colin Walls

Colin Walls I have raised the subject of embedded device power consumption before and I will again, as this is becoming more and more of a hot topic [no pun intended]. As I have touched upon on a previous occasion, power consumption is no longer purely a hardware - the software can have a significant effect. There are obvious ways that software has an influence: code efficiency, control of system voltage and clock … Read More

Low Power, multi-core, Multi-OS

18 Apr, 2011

Colin Walls I was recently approached for help by a Mentor Graphics customer, who was planning a new project and needed to select an operating system. They wanted guidance with that choice. Of course, one is tempted to say that it does not matter which of our products they chose [as, between them, Nucleus RTOS and Mentor Embedded Linux do cover most possibilities], but I felt they needed something more objective. There … Read More

Windows CE, Source Code, Linux, Low Power, RTOS, Networking, Nucleus

4 Apr, 2011

Why does power matter?

Posted by Colin Walls

Colin Walls In all aspects of life, the use of energy is an increasingly important matter. A domestic electricity bill is enough to get the attention of most householders and initiate thoughts about using more efficient equipment. Filling a car’s fuel tank is an eye-watering experience. Even in the US, where fuel is still quite cheap, the costs have risen drastically in percentage terms over the last decade. … Read More

iPad, Kindle, Low Power

29 Nov, 2010

Embedded software in 2011

Posted by Colin Walls

Colin Walls

Crystal ball gazing is a hazardous activity. However, this week I am going to take the risk. I have the honor of having been invited to present a keynote speech at a technical conference in Grenoble, France. Although I speak at conferences frequently, I normally have some constraints with the topic - normally I am presenting a paper, an abstract for which was submitted and accepted months before. On

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Multicore, User Interface, Low Power, Android, Inflexion

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