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Embedded Software Blog

Posts tagged with 'Low Power'

27 Jan, 2014

Colin Walls After talking about low power CPU modes last week, I make no apology for returning to the topic. Reducing power on a single core embedded system is a challenge. With a multicore design, there are many other nuances. As with most system development, there are two highly interrelated facets to the process: design and verification [which software developers commonly call debugging]. Different semiconductor … Read More

Imagination, ARM, Sourcery Analyzer, Low Power, MIPS

20 Jan, 2014

Low power modes

Posted by Colin Walls

Colin Walls Power management is a hot topic – or maybe that should read “a cool topic” – among embedded developers of late. In the course of a recent conversation on the subject, I realized that there are, in effect, three kinds of power saving procedure that embedded software might effect: Use dynamic voltage and frequency scaling [DVFS] to tune the CPU performance to the needs of the … Read More

Low Power, Nucleus, Power Management

18 Nov, 2013

Conferences in perspective

Posted by Colin Walls

Colin Walls My busy two week conference period is now behind me and, having had a bit of R&R in the meantime, I have had a chance to reflect on some of my experiences and impressions of the three events: ARM TechCon, ECS and IP-SoC. If you attended any of these events, please email or comment to share your thoughts. If you would like copies of any of my materials, please email … ARM TechCon, Santa Clara, … Read More

Power Management, ARM TechCon, ARM, Multicore, RTOS, Self-test, Nucleus, Low Power, USB, MCAPI, USB 3.0

4 Nov, 2013

ECS & IP-SoC

Posted by Colin Walls

Colin Walls As I mentioned previously, I am in the midst of a busy time for conferences. This week, I am at ECS in Stockholm, Sweden on Tuesday/Wednesday and IP-SoC in Grenoble, France on Thursday. I have a total of four presentations, along with some other activities at these events … ECS has become a significant fixture in the calendar for embedded events in the Nordic region and seems to get bigger … Read More

Self-test, Low Power, Nucleus, RTOS, Power Management

8 Jul, 2013

Three degrees of freedom

Posted by Colin Walls

Colin Walls Developing embedded software used to be easy. Actually, that is not true. It has never been easy, but certain matters were simpler. Embedded developers have always needed more control of code generation because, as I am often heard to chant, every embedded system is different and the priorities and requirements change from one to another. It used to be broadly a choice between speed and size of code, … Read More

Low Power, Development Tools, Sourcery Analyzer

1 Apr, 2013

Power management webinar

Posted by Colin Walls

Colin Walls Some time ago, I recorded the content for a Web seminar about power management in embedded software. Although I am talking about the subject generally, I am, of course, strongly alluding to the capabilities incorporated into Nucleus RTOS. The session was “broadcast” last week, but, if you would like to experience a rare example of me being caught on video, you can watch the recorded version. … Read More

Low Power, Nucleus, Power Management

25 Feb, 2013

Embedded World 2013

Posted by Colin Walls

Colin Walls This week I am on my annual pilgrimage to Nuremberg, Germany to attend Embedded World. This is the first major conference of the year that covers embedded software and is, I am sure, now the largest event serving this community anywhere in the world. I have written about past visits and this year’s trip will be quite similar, except that I will be rather busy … Most years I have had one … Read More

Embedded World, Low Power, Power Management, RTOS

24 Feb, 2013

Kamran Shah The Mentor Embedded team will be at Embedded World in Nuremburg Germany this week. In addition to a number of demos at the Expo (Hall 5, Booth 324) we are presenting a number of sessions as well. On Tuesday Colin Walls will give two presentations: His first session is titled “Power Management in Embedded Systems”. This is part of Session 4: System Level Design and will be from 3:15 pm to … Read More

Low Power, RTOS, Embedded World

4 Feb, 2013

More on low power CPU design

Posted by Colin Walls

Colin Walls I recently wrote a posting about designing a CPU for low power by creating an instruction set where common sequences of instructions would have the minimum number of logic transitions. I hoped that I would get some feedback and I did. I had an email from Apostolos Leventis. I am always delighted to be contacted by blog readers, either by comment or email – even if it is critical or correcting … Read More

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.  

Read More

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

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