editor's blog
Subscribe Now

Correlating Power with Code

The smarter systems get, the more they are run by some kind of processor running code. So system functions that might have been controlled by circuitry and logic in the past are now turned on and off based on instructions in the system control code. So the power consumption of your system can depend highly on the code that’s running.

This is true even for the processor itself, whose power can depend on how your code runs. IAR has already had a solution for that, called I-scope, that you could use with their I-jet debugging pod to figure out what code was executing when some power event happened.

Well they’ve just extended that capability beyond the processor. You can now, theoretically, probe any points of interest on the board to figure out where power is going and then correlate that back to the code that’s executing. I say “theoretically” because you can’t simply probe a random node; you have to provision the board with a low-value shunt resistor for each power line you want to be able to probe. This provides the ΔV that the probe can measure to develop a power profile.

You can learn more by checking their release.

Leave a Reply

featured blogs
Feb 27, 2021
New Edge Rate High Speed Connector Set Is Micro, Rugged Years ago, while hiking the Colorado River Trail in Rocky Mountain National Park with my two sons, the older one found a really nice Swiss Army Knife. By “really nice” I mean it was one of those big knives wi...
Feb 26, 2021
OMG! Three 32-bit processor cores each running at 300 MHz, each with its own floating-point unit (FPU), and each with more memory than you than throw a stick at!...
Feb 26, 2021
In the SPECTRE 20.1 base release, we released Spectre® XDP-HB as part of the new Spectre X-RF simulation technology. Spectre XDP-HB uses a highly distributed multi-machine multi-core simulation... [[ Click on the title to access the full blog on the Cadence Community si...

featured video

Silicon-Proven Automotive-Grade DesignWare IP

Sponsored by Synopsys

Get the latest on Synopsys' automotive IP portfolio supporting ISO 26262 functional safety, reliability, and quality management standards, with an available architecture for SoC development and safety management.

Click here for more information

featured paper

Authenticating Remote Automotive Peripherals Using GMSL Tunneling

Sponsored by Maxim Integrated

Authentication can be applied to automotive environments to protect peripheral components from third-party counterfeits. This application note details how to implement automotive authentication with the use of gigabit multimedia serial link (GMSL).

Click here to download the whitepaper

Featured Chalk Talk

Smart Embedded Vision with PolarFire FPGAs

Sponsored by Mouser Electronics and Microchip

In embedded vision applications, doing AI inference at the edge is often required in order to meet performance and latency demands. But, AI inference requires massive computing power, which can exceed our overall power budget. In this episode of Chalk Talk, Amelia Dalton talks to Avery Williams of Microchip about using FPGAs to get the machine vision performance you need, without blowing your power, form factor, and thermal requirements.

More information about Microsemi / Microchip PolarFire FPGA Video & Imaging Kit