J-Trace streaming trace probes

SEGGER's trace probes are the leading solution for analyzing, verifying and profiling code. The J-Trace PRO captures complete instruction traces over infinite periods of time, enabling the recording of infrequent, hard-to-reproduce bugs.

Overview

SEGGER's J-Trace is a professional streaming trace probe that offers the best possible trace experience, boasting an extensive list of features that fulfill any embedded developers’ debugging needs. With unlimited streaming trace, Live Code Profiling and Live Code Coverage, developers can isolate and identify hard-to-find code defects.

The J-Trace offers multi-platform support for Windows, macOS and Linux making it very versatile. This is also reflected in its support for most popular IDEs. The free, stand-alone debug software Ozone can be used for any toolchain to enable tracing. For quick and easy first steps, there are trace reference boards available.

The J-Trace series comprises different models. Equipped with full J-Link debug functionality, the J-Trace PRO is designed to support the advanced tracing features of all popular cores and architectures. Specialized models provide support for Cortex-M-based microcontrollers (J-Trace PRO Cortex-M), Cortex-A/R/M-based microcontrollers (J-Trace PRO Cortex-A/R/M), and RISC-V-based microcontrollers (J-Trace PRO RISC-V). All of them deliver large trace memory capacities and high-speed communication via USB SuperSpeed 3.0.

Key features

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

J-Trace PRO

The multi-architecture trace probe

The J-Trace PRO is SEGGER's "all-in-one" streaming trace probe for any CPU core and architecture.

J-Trace PRO Cortex-A/R/M

The Arm Cortex trace probe

The J-Trace PRO for Cortex-A/R/M-based microcontrollers supports tracing on a wide range of Arm Cortex cores.

J-Trace PRO Cortex-M

The leading trace probe

The J-Trace PRO for Cortex-M-based microcontrollers enables continuous streaming trace for code development and optimization.

J-Trace PRO RISC-V

The RISC-V trace probe

J-Trace PRO for RISC-V-based microcontrollers supports tracing on a wide range of RISC-V cores.

Debug and trace connectors

J-Trace has two connectors. The pinout of the debug and trace connector is in the SEGGER knowledge base. The debug connector is for debug only and can be used with target adapters for J-Link.

Please note that only one connector can be used at a time.

Supported devices

The list of supported manufacturers, families, devices, and SoCs includes tens of thousands of devices in hundreds of device families.

Device not listed? Please don’t hesitate to contact us.

Comparison

	J-Trace PRO	J-Trace PRO Cortex-A/R/M	J-Trace PRO Cortex-M	J-Trace PRO RISC-V
Hardware features
Power supply	USB	USB	USB	USB
Download speed into RAM ^{^[1]}	4.0 MB/s	4.0 MB/s	4.0 MB/s	4.0 MB/s
Max. CPU frequency	Unlimited	Unlimited	Unlimited	Unlimited
Max. TPIU frequency	300 MHz	300 MHz	300 MHz	300 MHz
Max. trace clock frequency	150 MHz	150 MHz	150 MHz	150 MHz
Max. SWO speed	100 MHz	100 MHz	100 MHz	100 MHz
Max. target interface speed	50 MHz	50 MHz	50 MHz	50 MHz
Host interfaces
Ethernet
USB
Target interfaces
cJTAG
JTAG
Arm SWD
Arm SWO
RISC-V SWD
Trace interfaces
Unlimited streaming trace + Live analysis ^{^[2]}
Buffer Trace
Supported trace encoders
Cortex-M ETM Trace
Cortex-A ETM Trace
Cortex-R ETM Trace
Cortex-A PTM Trace
RISC-V N-Trace BTM
Software features
Flash Download
GDB Server
J-Flash
J-Flash SPI
Ozone
RDDI
RDI
Real-Time Transfer (RTT)
Unlimited Flash Breakpoints
Supported Arm cores
Cortex-A5
Cortex-A7
Cortex-A8
Cortex-A9
Cortex-A12
Cortex-A15
Cortex-A17
Cortex-A32
Cortex-A35
Cortex-A53
Cortex-A55
Cortex-A72
Cortex-M0
Cortex-M0+
Cortex-M1
Cortex-M3
Cortex-M4
Cortex-M7
Cortex-M23
Cortex-M33
Cortex-M52
Cortex-M55
Cortex-M85
Cortex-R4
Cortex-R5
Cortex-R8
Cortex-R52
SC000 (M0 secure)
SC300 (M3 secure)
Supported Arm legacy cores
Arm7
Arm9
Arm11
Supported Cadence cores
HiFi 1
HiFi 3
HiFi 3z
HiFi 4
HiFi 5
Fusion F1
Xtensa LX6
Xtensa LX7
Supported Microchip PIC32 cores
Microchip PIC32MX
Microchip PIC32MZ
Supported Renesas RX cores
Renesas RX110
Renesas RX111
Renesas RX140
Renesas RX210
Renesas RX21A
Renesas RX220
Renesas RX610
Renesas RX621
Renesas RX62G
Renesas RX62N
Renesas RX62T
Renesas RX630
Renesas RX631
Renesas RX63N
Renesas RX63T
Renesas RX660
Supported RISC-V cores
E20
E21
E24
E31
E34
E61
E61-MC
E76
E76-MC
Supported SiLabs 8051 cores
EFM8

Supported Debug support: Run control, memory access, etc. Pin trace supported Not supported

[1] The download speeds listed here are the peak download speeds that can be achieved by the particular J-Trace model. The actual download speed may be lower as it depends on various factors, such as, but not limited to: The selected debug interface & speed, the CPU core and its operating frequency, other devices in the JTAG chain in case JTAG is used as target interface.

[2] Unlimited streaming trace allows to transmit trace in real time to the PC. While traditional trace only allows to see and analyze the last xxx MB of trace data, with streaming trace it is possible to have all data available. This allows extended debugging features, such as code coverage or CPU load analysis based on a function basis.

Media gallery

Aug. 2016 | 1:55 min
Live Code Profiling & Code Coverage

Jan. 2021 | 48:06 min
Advanced debugging webinar

Oct. 2018 | 5:01 min
Live Code Profiling & Code Coverage with SAME70

Getting started

Aug. 2020 | 10:40 min
Getting started

J-Trace PRO is designed to work out-of-the-box with most trace-capable target devices. In all other cases J-Trace PRO offers additional features that can make any trace setup possible. It has never been easier to get a trace up and running.

More about getting started with J-Trace...

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