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🟡 J-Trace Streaming Trace Probes

SEGGER J-Trace streaming trace probes provide detailed insight into the runtime behavior of embedded software. By capturing complete instruction traces over extended periods, J-Trace helps developers analyze program execution, identify hard-to-reproduce problems and optimize application performance.

Overview: J-Trace Trace Probe

SEGGER J-Trace is a family of professional streaming trace probes for detailed analysis of embedded software execution. Unlimited streaming trace, Live Code Profiling and Live Code Coverage help developers investigate difficult software problems, analyze performance and understand program behavior over extended periods.

J-Trace supports Windows, macOS and Linux and integrates with a wide range of embedded development environments. SEGGER's Ozone debugger provides additional trace analysis capabilities independent of the compiler toolchain.

Different J-Trace PRO models support Arm Cortex-M, Cortex-A/R/M and RISC-V targets, combining high-speed streaming trace with full J-Link debug functionality.

Key Features: J-Trace PRO

  • Streaming trace probe with SuperSpeed USB3.0 interface and Gigabit Ethernet
  • Real-time streaming at full System Clock
  • Fine-tune applications with Live Code Profiling
  • Instruction-level code coverage to satisfy regulatory requirements
  • Unlimited trace to isolate & identify hidden code defects
  • Unlimited breakpoints in flash memory (Unlimited Flash Breakpoints)
  • Available for all popular devices (Arm and RISC-V)

J-Trace Models click image for details

J-Trace PRO

J-Trace PRO Cort-A/R/M

J-Trace PRO Cortex-M

J-Trace PRO RISC-V

J-Link and J-Trace Comparison

Comparison of SEGGER debugging and trace tools for embedded development
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Update: August 30th, 2026

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J-Trace PRO

J-Trace PRO is setting a new standard for trace probes. It enables continuous streaming trace, lifting the limitations by internal buffers and slow data transmission to give you all the insights you need to develop and optimize your code.

  • Streaming trace probe with SuperSpeed USB3.0 interface and Gigabit Ethernet
  • Download speed up to 4 MB/s
  • Unlimited breakpoints in flash memory (Unlimited Flash Breakpoints)
  • Use with Ozone and J-Flash
  • Real-time streaming at full System Clock
  • Fine-tune applications with Live Code Profiling
  • Instruction-level code coverage to satisfy regulatory requirements
  • Unlimited trace to isolate & identify hidden code defects
  • Supports all popular devices (Arm, RISC-V. Microchip PIC32, Renesas RX, SiLabs 8051, Cadence Tensilica)
  • Full J-Link debug functionality

J-Trace PRO can capture complete traces over long periods—thereby enabling the recording of infrequent,
hard-to-reproduce bugs. This is particularly helpful when the program flow 'runs off the rails' and stops in
a fault state.
It also supports extended trace features, such as code coverage (so engineers have visibility over which
parts of the application code have been executed) and execution profiling (providing visibility as to which
instructions have been executed and how often—so hotspots can be addressed and optimization
opportunities identified).

More about J-Trace PRO

General Information about J-Link

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J-Trace PRO Cortex-A/R/M

Overview

SEGGER's J-Trace PRO-A/R/M can capture complete traces over long periods — thereby enabling the recording of infrequent, hard-to-reproduce bugs. This is particularly helpful when the program flow 'runs off the rails' and stops in a fault state.

It also supports extended trace features, such as Live Code Coverage (so engineers have visibility over which parts of the application code have been executed) and Live Code Profiling (providing visibility as to which instructions have been executed and how often, so hotspots can be addressed and optimization opportunities identified).

The J-Trace PRO Cortex-A/R/M provides support for Cortex-A/R/M-based microcontrollers. The Superspeed USB 3.0 interface of J-Trace PRO enables continuous streaming trace via USB with the full trace clock. Streaming in real time allows for data capture over long periods of time because there is no limit set on the amount of trace data. This gives you all the insight you need to develop and optimize your code.

  • Streaming trace probe with SuperSpeed USB3.0 interface and Gigabit Ethernet
  • Download speed up to 4 MB/s
  • Unlimited breakpoints in flash memory (Flash Breakpoints)
  • Use with Ozone and J-Flash
  • Real-time streaming at full System Clock
  • Fine-tune applications with Live Code Profiling
  • Instruction-level code coverage to satisfy regulatory requirements
  • Unlimited trace to isolate & identify hidden code defects
  • Supports Cortex-A/R/M targets
  • Full J-Link debug functionality

More about J-Trace PRO Cortex-A/R/M

General Information about J-Link

Download J-Link-Software

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J-Trace PRO Cortex-M

Features

SEGGER's J-Trace PRO-M can capture complete traces over long periods — thereby enabling the recording of infrequent, hard-to-reproduce bugs. This is particularly helpful when the program flow 'runs off the rails' and stops in a fault state.

It also supports extended trace features, such as Live Code Coverage (so engineers have visibility over which parts of the application code have been executed) and Live Code Profiling (providing visibility as to which instructions have been executed and how often, so hotspots can be addressed and optimization opportunities identified).

The J-Trace PRO Cortex-M provides support for Cortex-M-based microcontrollers. Its SuperSpeed USB 3.0 interface enables continuous streaming trace at full trace clock speed. Since trace data can be streamed continuously to the host computer, developers can capture and analyze system behavior over extended periods without being limited by an internal trace buffer.

  • Streaming trace probe with SuperSpeed USB3.0 interface and Gigabit Ethernet 
  • Full J-Link debug functionality
  • Download speed up to 4 MB/s
  • Unlimited breakpoints in flash memory (Flash Breakpoints) 
  • Use with Ozone and J-Flash
  • Real-time streaming at full System Clock
  • Fine-tune applications with Live Code Profiling
  • Instruction-level code coverage to satisfy regulatory requirements
  • Unlimited trace to isolate & identify hidden code defects
  • Supports Cortex-M targets

More about J-Trace PRO Cortex-M

General Information about J-Link

Download J-Link-Software

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J-Trace PRO RISC-V

Overview

SEGGER's J-Trace PRO RISC-V can capture complete traces over long periods — thereby enabling the recording of
infrequent, hard-to-reproduce bugs. This is particularly helpful when the program flow 'runs off the rails' and
stops in a fault state.

The J-Trace PRO RISC-V provides support for RISC-V-based microcontrollers. With its superspeed USB 3.0
interface, J-Trace PRO RISC-V enables continuous streaming trace via USB with full trace clock. It enables a far-
reaching and complete analysis, offering fast and efficient data analysis, ensuring higher productivity while also
lowering development risks and costs.

  • Streaming trace probe with SuperSpeed USB3.0 interface and Gigabit Ethernet 
  • Full J-Link debug functionality
  • Download speed up to 4 MB/s
  • Unlimited breakpoints in flash memory (Flash Breakpoints) 
  • Use with Ozone and J-Flash
  • Real-time streaming at full System Clock
  • Fine-tune applications with Live Code Profiling
  • Instruction-level code coverage to satisfy regulatory requirements
  • Unlimited trace to isolate & identify hidden code defects
  • Supports RISC-V targets

More about J-Trace PRO RISC-V

General Information about J-Link

Download J-Link-Software

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