Ozone
Debugger and performance analyzer
Ozone is SEGGER's multi-platform debugger and performance analyzer for use with J-Link and J-Trace plus simulators and third-party debug probes.
Overview
Ozone is a full-featured graphical debugger for embedded applications. With Ozone, it is possible to debug any embedded application on C/C++/Rust source and assembly level. Ozone can load applications built with any tool chain / IDE or debug the target's resident application without any source. Ozone includes all well-known debug controls and information windows and makes use of the best performance of J-Link and J-Trace debug probes. The user interface is designed to be used intuitively and is fully configurable. All windows can be moved, re-sized and docked to fit the need of any developer.
Ozone goes beyond traditional debugging. It delivers advanced performance analysis tools, including real-time tracing, profiling, and code coverage. This means users can measure execution time, detect bottlenecks, track down inefficiencies and bugs, and analyze system behavior in the event of crashes or technical issues. A great advantage of instruction tracing is that it enables a user to see what happened before a crash, especially before the occurrence of a fault exception. Ozone's synchronization of instruction traces and associated source code makes this a powerful feature. The ability to interleave C/C++/Rust code with disassembly enables users to gain maximum insight.
Key features
- Stand-alone graphical debugger
- Debug output of any toolchain and IDE
- Rust support
- C/C++/Rust source level debugging and assembly instruction debugging
- Debug information windows for any purpose: disassembly, memory, globals and locals, (live) watches, CPU and peripheral registers
- Source editor to fix bugs immediately
- High-speed programming of the application into the target
- Supports J-Link debug probes directly, third-party debug probes via GDB server
- Direct use of J-Link built-in features (Unlimited Flash Breakpoints, Flash Download, Real Time Terminal, Instruction Trace)
- Scriptable project files to set up everything automatically
- New project wizard to ease the basic configuration of new projects
All-in-one solution
Ozone supports Arm-based and RISC-V microprocessors. With J-Link tightly integrated, all devices supported by J-Link can be used with Ozone.
Ozone is multi-platform for Windows, macOS, and Linux. Similar look and feel on all platforms and fully portable projects enable efficient development on the operating system of your choice.
Supported debug probes
Ozone supports virtually any debug probe. Its direct integration with J-Link and J-Trace provides advanced debugging features and highest performance.
By supporting the GDB Remote Protocol, Ozone can connect to GDB servers, such as OpenOCD. This makes professional debugging with a focused and flexible user interface available for any debug probe.
Supported toolchains
Ozone can be used with any toolchain that generates Elf/Dwarf debug information for its output. The list of tested toolchains and IDEs includes Embedded Studio, and other GCC and GCC-based IDEs, clang/LLVM and Arm Compiler.
Toolchain not listed? Please don’t hesitate to contact us.
Rust support
Ozone includes comprehensive support for the Rust programming language. This integration provides important features such as source and assembly-level debugging, system state inspection with memory view, call stack, and backtrace analysis, now also available for Rust.
Stand-alone debugger
Ozone focuses on debugging. There is no compiler or project window to distract you from your work, All debug windows can be moved, resized and docked to provide you with the workspace you need.
Ozone offers all well-known debug controls and information windows, and more. Instruction trace, power graph, live watches, and real-time terminal I/O further extend these capabilities.
With the source editor you can fix bugs immediately on detection.
The performance analyzer
Ozone features more than plain debugging. With the extensive features of J-Link and J-Trace, it can be used for a full performance analysis of your target system.
In combination with J-Trace, Ozone can record and analyze the runtime behavior of your application. You can step back through the executed instructions to see what your system did last and to visualize, in a timeline, the function and interrupt call path. Additionally, the execution is analyzed to provide a complete code coverage and profiling analysis.
With J-Link's High-Speed Sampling technology, Ozone allows you to sample and visualize your system's variables over time and to easily check values and flags in the debugger, while the target keeps running.
J-Link's power measurement features enable you to record the power consumption of your target device in a debug session. This is especially helpful when you develop a low-power device and need to know how power consumption changes when you enable or disable certain components.
All performance analysis windows can be synchronized to get the link between them. Want to know why your error flag was set? Check the Data Graph and Instruction Trace windows. Want to see what happens when you turn on the display? Take a look at the Timeline and Power Graph.
RTOS awareness
In addition to analyzing runtime performance, Ozone also shows detailed information about the state of a system when it is halted.
With its RTOS awareness, Ozone provides information about the OS of the application: In which task did the system halt? What are other tasks currently doing? How much stack does each task use?
Ozone comes with multiple RTOS awareness plugins:
- embOS
- ChibiOS
- FreeRTOS
- Eclipse ThreadX
- Zephyr
A plugin SDK is available to add awareness for any other OS.
Automate your setup & tests
Ozone projects feature a C-like scripting language that allow you to configure the graphical user interface and to automate the debugging work flow. Most actions that are accessible with the GUI have an affiliated script function that can be evoked from your project script or manually from the debuggers console window.
In a project file you can use various event handlers to perform your actions on certain events, such as on debug start, before download, after reset, or on halt and go. You can also add event handlers to your breakpoints. Using this functionality, you can configure consistent, comprehensive verification and debug setups. This enables automated tests that simply work without user interaction.
Videos
Ozone Timeline Window
Ozone Features Part 1
Ozone Features Part 2
Introduction to Ozone
Analyzing Cortex-M Faults using Ozone
Introduction to Cortex-M Faults
Licensing
Commercial use
Ozone is available as a SEGGER Software Tool under SEGGER's Friendly License for non-commercial use and SEGGER's Commercial-use License.
The J-Link PLUS, ULTRA+, PRO models and J-Trace PRO include a free license for use of Ozone. With other debug probes, Ozone can be evaluated free of charge. For commercial use, separate licenses can be purchased.
Free for non-commercial use
For non-commercial or educational purposes, Ozone may be used free of charge under the SFL. Users can request a free license key to fully activate the software.
Download & Installation
Download the setup and install Ozone with a few clicks. Multiple versions of Ozone can be installed on the same PC without any problems, as they can co-exist in different directories. Application settings are shared across the versions.
System requirements
Operating systems
| Operating system | Version |
|---|---|
| Windows | Microsoft Windows (Arm/Intel) |
| macOS | macOS (Apple/Intel) |
| Linux | List of supported Linux distributions: https://kb.segger.com/Ozone_Tested_OS_versions_%26_distributions |
