Edinburgh, Scotland, UK
October 21 & October 25 | Co-Located Events, Tutorials, & Workshops
October 22-24 | Conference
Find out more information for Open Source Summit + Embedded Linux Conference & OpenIoT Summit Europe 2018

Please note that you can view and download presentations on the Open Source Summit and Embedded Linux Conference + OpenIoT Summit slides pages. 
Wednesday, October 24 • 15:05 - 15:45
Power Debugging with JTAG - Patrick Titiano & Alexandre Bailon, BAYLIBRE

Sign up or log in to save this to your schedule and see who's attending!

Feedback form is now closed.
Debugging power management issues is traditionally done via the serial console, Android USB/ADB, or SSH eventually. Besides being tedious, it is also intrusive debugging (CPU “regular” execution flow periodically interrupted to log traces over the UART, a rather slow interface with blind windows during CPU power transitions). But there is another option: the JTAG port. Well known for deep kernel debugging, it used to be less popular for power debugging. Well, until now! JTAG port offers the only non-intrusive solution to monitor system activities. Leveraging already-available python libraries, it is now possible to monitor key power indicators (clock rates/states, power states, voltages, bus stats, etc) without altering the use-case power profile, from your host PC.

Motivations, challenges, benefits, and results will be further exposed, including a demo of a “power dashboard” application.


Alexandre Bailon

Embedded Linux Kernel Senior Developper, BAYLIBRE
Alexandre Bailon is a co-founder of BayLibre, an embedded Linux consultancy, where he developed USB gadget support for Google’s Project Ara modular phone, and currently implementing power optimization for iMX7ULP SoC. Before co-founding BayLibre, Alex worked at Texas Instruments... Read More →
avatar for Patrick Titiano

Patrick Titiano

System Power Management Expert, BAYLIBRE
Patrick Titiano has 18 years of engineering experience in embedded technologies. Patrick spent 9 years at Texas Instruments as an OMAP Power Management Expert (from architecture to use-case power optimization). Patrick also developed embedded diagnostic open source tools (“omapconf... Read More →

Wednesday October 24, 2018 15:05 - 15:45
Lennox 2, Level -2

Attendees (145)