J-Link downloads

The J-Link software & documentation pack gives you the USB drivers needed for your system, a number of utilities as well as a dynamically linkable library (DLL on Windows) used by most of the IDEs and debuggers using J-Link.

Also included are a number of sample setup scripts for devices needing one as well as documentation. The package can be downloaded and used free of charge by any owner of a J-Link, J-Trace or Flasher ARM, Flasher RX model.

It is updated frequently. All utilities and features included can be used on any of these units without the need for an additional license, with the exception of J-Flash, RDI and "Unlimited Flash Breakpoints", which require a separate license on most units (not J-Link ULTRA+, J-Link PRO or J-Link PLUS which include all licenses)

J-Link software & documentation pack can also be used with J-Link KS, SAM-ICE, mIDASLink, DIGI JTAG Link and any other licensed J-Link compatible emulator.
 

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J-Link software & documentation pack for Windows

Installing the software will automatically install the J-Link USB drivers. It also offers to update applications which use the J-Link DLL. Multiple versions of the J-Link software can be installed on the same PC without problems; they will co-exist in different directories.

The package contains:

  • GDB Server - Support for GDB and other debuggers using the same protocol. GUI & command line version.
  • J-Link Configurator - Free utility to manage a various number of J-Links connected to the PC via USB or Ethernet.
  • J-Link Commander - Simple command line utility, primarily for diagnostics and trouble shooting.
  • J-Link Remote Server - Free utility which provides the possibility to use J-Link / J-Trace remotely via TCP/IP.
  • SWO Viewer - Free tool which shows terminal output of the target performed via SWO pin.
  • J-Mem - Memory viewer.
  • J-Link DLL Updater - Allows to update 3rd party applications which use the J-Link DLL.
  • Free flash programming utilities - Simple command line utilities which allow programming a bin file into the internal/external flash memory of popular eval boards.
  • USB driver (Includes driver for J-Links with CDC functionality).
  • Manuals: UM08001 (J-Link User Guide), UM08003 (J-Flash User Guide), UM08004 (RDI User Guide), UM08022 (Flasher User Guide).
  • Release notes for J-Link DLL, J-Flash, J-Link RDI DLL.
  • J-Flash, including sample projects for most popular eval boards.
  • J-Link RDI  - Support for ARM RDI standard. Makes J-Link compatible with RDI compliant debuggers.
Software and documentation pack for Windows V4.90b [20,060 kb]
md5 checksum: a44c10dc4d3c3bf3919a7d1f039915dd

J-Link software & documentation pack for Linux

The package contains:

  • GDB Server - Support for GDB and other debuggers using the same protocol. Command line version.
  • J-Link Commander - Simple command line utility, primarily for diagnostics and trouble shooting.
Software and documentation pack for Linux V4.90b, DEB Installer 32-bit version [6,848 kb]
md5 checksum: 4766d94ce104b39c7526fa6053bbdc75
Software and documentation pack for Linux V4.90b, DEB Installer 64-bit version [7,051 kb]
md5 checksum: e2b280860c8569948d44c0c2e60150bd
Software and documentation pack for Linux V4.90b, RPM Installer 32-bit version [6,853 kb]
md5 checksum: 2bcebb2520c764aea85c7df051c1b729
Software and documentation pack for Linux V4.90b, RPM Installer 64-bit version [6,233 kb]
md5 checksum: 0b71ea3c5fe1c1074f4d37bc21a5205a
Software and documentation pack for Linux V4.90b, TGZ archive 32-bit version [6,857 kb]
md5 checksum: 1e268e1f5a9255ec94f1c8885964d583
Software and documentation pack for Linux V4.90b, TGZ archive 64-bit version [7,056 kb]
md5 checksum: a1ff587f6aba831613e7bedcd53d0b3c

J-Link software & documentation pack for Linux ARM systems

The package contains:

  • GDB Server - Support for GDB and other debuggers using the same protocol. Command line version.
  • J-Link Commander - Simple command line utility, primarily for diagnostics and trouble shooting.

Note: This package is only needed for the special case if J-Link is controlled by a Linux system which is running on an ARM hardware (so J-Link is connected via USB/Ethernet to this ARM system that is running Linux). In case J-Link is just connected to a PC running Linux, the "J-Link software & documentation pack for Linux" is the correct package.

Note: This package comes without any support.

 

Software and documentation pack for Linux ARM systems V4.90b [6,765 kb]
md5 checksum: ef3d48ae8a0d6a45a4c23dbf7184ce53

J-Link software & documentation pack for MAC

The package contains:

  • GDB Server - Support for GDB and other debuggers using the same protocol. Command line version.
  • J-Link Commander - Simple command line utility, primarily for diagnostics and trouble shooting.
Software and documentation pack for Mac OS X V4.90b [10,872 kb]
md5 checksum: f0b2dcc4d41288ea8e7e292b5968bb0c

 Manuals

  Manual Version Size
Flasher manual (UM08022) 4.82 Rev. 0 1,971 KB
J-Flash manual (UM08003) 4.82 Rev. 0 579 KB
J-Link manual (UM08001) V4.86 Rev. 2 3,257 KB
J-Link GDB Server manual (integrated into UM08001)
   
J-Link RDI manual (integrated into UM08001)    
J-Link USB Protocol manual (RM08001) Rev. 7 350 KB

 


Beta software

We frequently publish new Beta versions. The Beta versions follow our current development version very closely and contain the latest features and improvements. However, the Beta versions are not thoroughly tested, but it is usually safe to assume that the Beta version can be used without risk.

Beta software version                               Previous software versions
 


Release notes

Latest J-Link DLL release notes
Latest J-Flash release notes
Latest J-Link RDI DLL release notes
 


Terms of use

The software consists of proprietary programs of SEGGER, protected under copyright and trade secret laws.
All rights, title and interest in the software are and shall remain with SEGGER.

SEGGER J-Link software may only be used with original SEGGER products and authorized OEM products.
The use of the licensed software to operate SEGGER product clones is prohibited and illegal.

More information...