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Embedded Systems – Designing for Low Power – Episode 04

Mickael HIVER
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Tue. 9 Aug. 2011 8:21 (publié il y a 2023 jours)
Énergie et embarqué

Haste makes waste

One of the many ways for you as a software engineer to reduce power consumption is to minimize the CPU frequency.
If you have some hardware performance to spare it can have a drastic effect on power consumption since CPU frequency is typically proportional to power consumption in CMOS logic. This is because a digital CMOS circuit has very little static power

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Embedded Systems – Designing for Low Power – Episode 03

Mickael HIVER
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Fri. 29 Jul. 2011 8:41 (publié il y a 2034 jours)
Énergie et embarqué

TAKE A NAP!

Most embedded systems spend a lot of time waiting for something to happen. It could for example be waiting for user input, a peripheral unit, or just for some time to pass. While waiting, the microcontroller will consume power as long as the CPU is executing instructions, even if it is doing nothing.
Fortunately, modern low power microcontrollers provide a plethora of

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Embedded Systems – Designing for Low Power – Ep. 02

Mickael HIVER
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Mon. 18 Jul. 2011 12:46 (publié il y a 2045 jours)
Énergie et embarqué

Turn off peripherals!

In this episode, we continue our series on power debugging with some thoughts on how to handle power-hungry peripherals, and how you can use the power debugging features to minimize unnecessary power consumption. In many systems, peripherals consume the major part of the power and the CPU only consumes a minor part. Exercising strict control of how peripherals are being used is

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Designing for Low Power

Mickael HIVER
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Fri. 3 Jun. 2011 13:52 (publié il y a 2090 jours)
Énergie et embarqué

This is the first article from a series of five, presenting good practices and suggestions on how to design Embedded Systems for Low Power.
The articles will be published at a rate of one per week. Feedback is welcomed.
 
1. Power Debugging
 
Power debugging is a method that measures how much power is being consumed when your application is running, and correlates

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