Name: Demystifying Memory: A Practical Tutorial on Managing & Optimizing Memory in Zephyr - Marko Sagadin, IRNAS
Start: 2025-08-27T11:55:00+0200
End: 2025-08-27T12:35:00+0200

25-27, August 2025
Amsterdam, Netherlands
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Wednesday August 27, 2025 11:55 - 12:35 CEST

D202

This talk provides an in-depth, tutorial-style exploration of memory optimisation within Zephyr RTOS, using Nordic's nRF5340 SOC and nRF7002 WiFi chip in various case studies. By focusing on practical, real-world challenges, the presentation aims to empower developers with actionable strategies for optimizing memory usage in resource-constrained embedded systems.

We begin by clarifying fundamental memory concepts such as flash and RAM, heap memory versus stack memory and differences between static and dynamic allocation. We also going to look at how Zephyr allocates and manages it's memory memory. This foundational overview sets the stage for understanding which parts of the codebase are placed into which memory and what are possible choices of memory optimization.

The presentation then delves into our hands-on experience with the nRF5340, highlighting the increased memory demands posed by the Wi-Fi stack and discussing how to mitigate these challenges. We share specific configuration tweaks, code-level optimizations, and introduce essential memory analysis tools.

Speakers

Marko Sagadin

Embedded Systems Engineer, IRNAS

Electrical engineer (by education) turned into an embedded engineer. In the past 6 years at IRNAS, Marko has worked on a number of different projects ranging from animal conservation, consumer IoT devices and medical devices. He has dealt with low-power design, wireless radio protocols... Read More →

Wednesday August 27, 2025 11:55 - 12:35 CEST
D202

Zephyr Developer Summit

Audience Experience Level Beginner

Open Source Summit Europe 2025

Marko Sagadin

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