Percepio Releases Tracealyzer v4.5 with Support for ESP32, Zephyr, and More

By Tiera Oliver

Associate Editor

Embedded Computing Design

June 15, 2021


Percepio Releases Tracealyzer v4.5 with Support for ESP32, Zephyr, and More
(Image courtesy of Percepio)

Percepio announced Tracealyzer version 4.5 with support for the Espressif ESP32 MCU, the open-source Zephyr RTOS, improved integration with Lauterbach uTrace, and more.

Zephyr is an open-source RTOS that supports multiple hardware architectures. According to the company, Zephyr is mintained by the Linux Foundation and is one of the fastest growing RTOSes today. Percepio's trace recorder library has now been adapted and integrated with Zephyr v2.6. This means that Tracealyzer support is accessible as a configuration option when setting up a new Zephyr project. The new Tracealyzer v4.5 offers beta-level support for Zephyr.

Tracealyzer v4.5 also adds support for Espressif ESP32 microcontrollers. Tracealyzer is now able to capture traces from Espressif's single- and multicore versions of FreeRTOS and show live streamed traces from both cores at the same time.

The new version further offers improved support for the STLINK-V3 debug probe and includes the support package required to use Tracealyzer with a Lauterbach uTrace probe. Likewise, Tracealyzer v4.5 is the first official version to include support for Percepio DevAlert, a cloud service for monitoring and remote diagnostics of IoT devices during testing and deployment. 

Percepio FAE Kristoffer Martinsson will present what’s new in Tracealyzer v4.5 in a live webinar on 30 June at 14.00 and 19:00 CEST. He will also talk about how to optimize your embedded or IoT application with the help of Tracealyzer. For information and to register for this free webinar, please go here.

Tracealyzer v4.5 will be available in the second half of June, with beta-level support for Zephyr RTOS. The Zephyr support will be updated to official status after the summer. Users can download an evaluation license from or contact their local Percepio distributor.

For more information, visit

Tiera Oliver, Associate Editor for Embedded Computing Design, is responsible for web content edits, product news, and constructing stories. She also assists with newsletter updates as well as contributing and editing content for ECD podcasts and the ECD YouTube channel. Before working at ECD, Tiera graduated from Northern Arizona University where she received her B.S. in journalism and political science and worked as a news reporter for the university’s student led newspaper, The Lumberjack.

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