Your "One-Stop-Shop" for your next Embedded Project

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Guide to SEGGER Development Tools


Based on our embedded software we created an industry-leading family of JTAG emulators with and without trace. Main features include high download-speed into RAM and flash memory, the ability to set an unlimited number of breakpoints in flash memory of MCUs. Supports ARM 7/9/11, Cortex™ and various IDEs. SDK available.
    Segger Logo
  • High visibility of tool chain parameters
  • The de-facto JTAG-standard (J-Link)
  • Hardware independent breakpoints
  • Debugger independent flash download

J-Link BASE / J-Link BASE Compact

JTAG/SWD Debug Probe with USB Interface

J-Link BASE is a USB powered JTAG debug probe supporting a large number of CPU cores. Based on a 32-bit RISC CPU, it can communicate at high speed with the supported target CPUs.

J-Link is supported by all major IDEs such as IAR EWARM, Keil MDK, Rowley CrossWorks, Atollic TrueSTUDIO, IAR EWRX, Renesas HEW, Renesas e2studio, and others. Including all models, more than 100,000 J-Links have been sold, making J-Link the most popular debug probe for ARM cores and a de-facto industry standard.

Key Features
  • Supports a broad range of microcontrollers: View List
  • Supports direct download into RAM and flash memory
  • Multiple CPUs supported—8051, PIC32, RX, ARM7/9/11, Cortex-M/R/A, complete list
  • Download speed up to 1 MByte/s
  • Optional Unlimited Flash Breakpoints in external flash memory of Cortex-M systems
  • Free software updates
  • Built-in VCOM functionality

More information about J-Link                               General Information about J-Link                               Download J-Link-Software

J-Link PLUS / J-Link PLUS Compact

Debug Probe with Bundle of Software

J-Link PLUS is a USB powered JTAG debug probe supporting a large number of CPU cores.
Based on a 32-bit RISC CPU, it can communicate at high speed with the supported target CPUs. J-Link is used around the world in tens of thousand places for development and production (flash programming) purposes.

J-Link is supported by all major IDEs such as IAR EWARM, Keil MDK, Rowley CrossWorks, Atollic TrueSTUDIO, IAR EWRX, Renesas HEW, Renesas e2studio, and many others.

Including all models, more than 100,000 J-Links have been sold so far, making J-Link probably the most popular debug probe for ARM cores and the de-facto standard.

Features
  • Comes with integrated licenses for: Unlimited breakpoints in flash memory (Unlimited Flash Breakpoints), RDI / RDDI and J-Flash
  • Fully compatible to the standard J-Link
  • Direct download into flash memory of most popular microcontrollers supported
  • Supported CPUs: Any ARM7/9/11, Cortex-A5/A8/A9, Cortex-M0/M1/M3/M4/M7, Cortex-R4, Microchip PIC32 and Renesas RX100/RX200/ RX610/RX621/RX62N/RX62T/RX630/RX631/RX63N
  • Download speed up to 1 MByte/second
  • Maximum Target Interface Speed 15 MHz
  • Supports unlimited breakpoints in flash memory! More info
  • Setting breakpoints in external flash memory of Cortex-M systems is possible with
    J-Link's Unlimited Flash Breakpoints technology only!
  • Supported by all major IDEs More info
  • Free software updates2, 1 year of support
  • Supports concurrent access to CPU by multiple applications3
  • Crossplatform support (runs on Windows, Linux, Mac OS X)4
  • Intelligence in the debug probe firmware More info
  • Remote Server included. Allows using J-Link remotely via TCP/IP More info
  • GDBServer included More info
  • Production flash programming software (J-Flash) available More info
  • Software Developer Kit (SDK) available More info
  • Supports multiple target interfaces: JTAG, SWD
  • Supports SWV/SWO (Serial Wire Viewer / Serial wire output)
  • Wide target voltage range: 1.2V - 3.3V, 5V tolerant
  • Supports JTAG chains with multiple devices
  • Embedded Trace Buffer (ETB) support
  • Various target adapters and optical isolation adapters available.
  • RDI / RDDI interface DLL available. More info
  • Fully plug and play compatible
  • No power supply required, powered through USB
  • Support for adaptive clocking
  • All JTAG signals can be monitored, target voltage can be measured
  • Target power supply: J-Link can supply up to 300 mA to target with overload protection

More information about J-Link PLUS                        General Information about J-Link                          Download J-Link-Software

J-Link ULTRA+

High Performance Debug Probe with USB Interface

J-Link ULTRA+ is a JTAG/SWD debug probe designed for ARM/Cortex and other supported CPUs. It is fully compatible to the standard J-Link and works with the same PC software.

Based on the highly optimized and proven J-Link, it offers even higher speed as well as target power measurement capabilities due to the faster CPU, built-in FPGA and High speed USB interface.

It connects via USB to a PC running Microsoft Windows 2000, Windows XP, Windows 2003, Windows Vista or Windows 7. J-Link ULTRA+ has a built-in 20-pin JTAG/SWD connector and comes with licenses for Unlimited Flash Breakpoints, RDI / RDDI and J-Flash.

Features
  • Comes with integrated licenses for: Unlimited breakpoints in flash memory (Unlimited Flash Breakpoints), RDI / RDDI and J-Flash
  • Fully compatible to the standard J-Link
  • Very high performance for all supported CPU cores
  • Download speed up to 3 MByte/second
  • Hi-Speed USB 2.0 interface
  • Serial Wire Debug (SWD) supported
  • Serial Wire Viewer (SWV) supported
  • Maximum target interface speed 50 MHz
  • Maximum SWO sampling speed 100 MHz
  • Target power can be supplied
  • Target power consumption can be measured with high accuracy.
  • Direct download into flash memory of most popular microcontrollers supported
  • Supported CPUs: Any ARM7/9/11, Cortex-A5/A8/A9, Cortex-M0/M1/M3/M4/M7, Cortex-R4, Microchip PIC32 and Renesas RX100/RX200/ RX6xx
  • Free software updates, 2 years of support
  • Seamless integration into the IAR Embedded Workbench IDE
  • Automatic core recognition
  • No power supply required, powered through USB
  • Support for adaptive clocking
  • All JTAG signals can be monitored, target voltage can be measured
  • Support for multiple devices
  • Fully plug and play compatible
  • Wide target voltage range: 1.2V - 3.3V, 5V tolerant
  • USB and 20-pin JTAG cable included
  • Memory viewer (J-Mem) included
  • Remote Server included, which allows using J-Link via TCP/IP networks
  • RDI / RDDI interface available, which allows using J-Link with RDI / RDDI compliant software
  • Flash programming software (J-Flash) available
  • Flash DLL available, which allows using flash functionality in custom applications
  • Software Developer Kit (SDK) available
  • Embedded Trace Buffer (ETB) support
  • Optical isolation adapter available
  • Target power supply: J-Link can supply up to 300 mA to target with overload protection

By adding licenses for all J-Link related software packages to J-Link ULTRA+, the developer receives access to an unlimited number of breakpoints in flash memory, production grade flash programming and compatibility with all popular tool-chains (click here for a list of all toolchains which come with native J-Link Support), GDB and RDI / RDDI based tool-chains for ARM and Renesas RX cores.

As with all J-Link models, the J-Link ULTRA+ comes with SEGGER’s ultra fast flash programming algorithms, allowing download into external CFI-compliant flashes as well as the internal flash of all common microcontrollers. Related software and firmware updates are free of charge.


More information about J-Link ULTRA+                        General Information about J-Link                        Download J-Link-Software




J-Link PRO

Debug Probe with Ethernet, USB Interface and Software Bundle
Why J-Link PRO?

There are many aspects which make the J-Link PRO very attractive to use:

  • Speed
    Up to 3 MByte/second download speed make J-Link PRO the fastest debug probe on the market. Using TCP/IP instead of USB eliminates latencies from USB usage, resulting in higher debugging speed.
  • Flexibility
    Due to the Ethernet interface, long distances between the development PC and the target system are possible. You can set a default gateway for J-Link PRO, so it is also possible to use it in large intranets.
  • Security (Galvanic isolation)
    Ethernet signal lines provide galvanic isolation of J-Link PRO (and so the target system) from network and development PC. For a complete isolation, shield of Ethernet cable should not be connected to RJ45 connector of J-Link PRO.
  • Price
    Buying a J-Link PRO, which comes with licenses for all J-Link-related SEGGER software, will save you a lot of money because buying a J-Link and all licenses separate is more expensive.
Features

  • Fully compatible to J-Link
  • Ethernet interface
  • USB 2.0 Hi-Speed interface
  • Supported CPUs: Any ARM7/9/11, Cortex-A5/A8/A9, Cortex-M0/M1/M3/M4/M7, Cortex-R4/R5, Microchip PIC32 and Renesas RX100/RX200/RX610/ RX621/RX62N/RX62T/RX630/RX631/RX63N
  • Free software updates1, 2 years of support
  • Additional LEDs for power and RESET indication
  • Comes with web interface for easy TCP/IP configuration (built-in webserver)
  • Serial Wire Debug (SWD) supported
  • Serial Wire Viewer (SWV) supported
  • Automatic core recognition
  • Maximum target interface speed 50 MHz
  • Maximum SWO sampling speed 100 MHz
  • Download speed up to 3 MByte/second
  • Powered through USB or power supply (comes with J-Link PRO)
  • Support for adaptive clocking
  • All target interface signals can be monitored, target voltage can be measured
  • Support for multiple devices
  • Fully plug and play compatible
  • Standard J-Link 20-pin target connector
  • Wide target voltage range: 1.2V - 5V
  • USB and 20-pin ribbon cable included
  • Memory viewer (J-Mem) included
  • Comes with licenses for: J-Link RDI / RDDI, J-Link Unlimited Flash Breakpoints, J-Link GDB Server, J-Flash
  • Software Developer Kit (SDK) available
  • Embedded Trace Buffer (ETB) support
  • 14-pin JTAG adapter available
  • Galvanic isolation from host system via Ethernet
  • Optical isolation adapter available
  • Target power supply: J-Link can supply up to 300 mA to target with overload protection.
Licensing

J-Link PRO comes with licenses for all J-Link related SEGGER software products:
J-Link Unlimited Flash Breakpoints,
J-Link RDI / RDDI,
J-Flash,
J-Link GDB Server,
providing the optimum debugging solution for professional developers. J-Link PRO can be used with almost all ARM debuggers, enabling download to flash memory with an unlimited number of breakpoints when debugging programs located in flash memory of most popular ARM microcontrollers. It also comes with the license to use J-Flash, SEGGER´s popular flash programming software.

1As a legitimate owner of a SEGGER J-Link, you can always download the latest software free of charge. Though not planned and not likely, we reserve the right to change this policy. Note that older models may not be supported by newer versions of the software. Typically, we support older models with new software at least 3 years after end of life.


More information about J-Link PRO                         General Information about J-Link                         Download J-Link-Software

J-Trace PRO Cortex-M

The Leading Trace Probe for Cortex-M

J-Trace PRO for Cortex-M—Analyze, Verify, and Profile your Code.

J-Trace PRO for Cortex-M 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..

Features


  • Trace and streaming probe
  • Real-time streaming of events and system ticks
  • Tune your application with live profiling
  • Satisfy regulatory requirements with instruction-level code coverage
  • Isolate and Identify hard-to-find code defects with unlimited trace
  • Supports Streaming Trace
  • Supports Cortex-M microcontroller
  • 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)./p>


More information about J-Trace PRO Cortex-M                 General Information about J-Link                Download J-Link-Software

J-Trace PRO Cortex

The Super-Speed Trace Probe

J-Trace PRO Cortex—Analyze, Verify, and Profile your Code on Cortex-A, Cortex-R and Cortex-M.

J-Trace PRO Cortex provides support for Cortex-A/R/M based microcontrollers. The SuperSpeed USB 3.0 interface of J-Trace PRO Cortex enables continuous streaming trace via USB with the full trace clock, lifting the limitations by internal buffers and slow data transmission to give you all the insights you need to develop and optimize your code.

Features

  • Streaming Trace probe with USB Superspeed interface
  • Real-time streaming at full System Clock
  • Tune your application with live profiling
  • Satisfy regulatory requirements with instruction-level code coverage
  • Isolate and Identify hard-to-find code defects with unlimited trace
  • Supports Streaming Trace
  • Supports Cortex-A/R/M targets
  • 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 information about J-Trace PRO Cortex                General Information about J-Link                    Download J-Link-Software