What's Happening at SEGGER?

2010 |
May 05
J-Link, Press Releases 2010

New and Ultra Fast SEGGER J-Link Ultra is now available

SEGGER Microcontroller today introduced a new member of its J-Link/J-Trace product family, the J-Link Ultra.

J-Link Ultra has been highly optimized for communication and debugging speed. While maintaining full compatibility with the regular J-Link, it significantly accelerates tasks such as debugging and flash programming.

Being the fastest in its class, the regular J-Link already sets a very high standard for debugging and download performance. J-Link Ultra raises the bar even higher, aiming to be the fastest emulator available.
The additional speed improvements have been made possible by a new high performance hardware design, utilizing Hi-Speed-USB, a faster CPU as well as hardware acceleration.
In addition to the speed improvement, the new emulator is also capable of measuring the target’s power consumption. For low-power applications, a measurement adapter will be introduced shortly which will allow high-precision measurement of other analog parameters in the target system.
Switching from the regular J-Link to J-Link Ultra is a very simple process: There is nothing to change except replacing the J-Link by the J-Link Ultra. No software or any other configuration changes are required.
Since the PC-software, form factor and connectors are the same as for the regular J-Link, it can be used with any software and any adapter compatible with J-Link, such as the JTAG-isolator.
“With the J-Link Ultra we are introducing a new and ultra fast platform for our J-Link/J-Trace product family. We believe that we have now the fastest emulator on the market. The higher programming speed provides a true benefit for both development and production processes,” says Dirk Akemann, Marketing Manager of SEGGER.
The J-Link is natively supported by IAR EWARM, KEIL µVision, Rowley Crossworks, and CodeSourcery G++. With the RDI and GDB-Server extensions, the supported tool-chains also include Atollic TrueStudio, Yagarto, and other RDI or GDB compatible development environments. If your development environment does not supply a Flash Loader for your device, the J-Link Ultra includes flash loaders designed for all popular devices with internal Flash.
Just like for the regular J-Link, the Flash Breakpoints option for enhanced debugging of programs running in the flash of microcontrollers is available. This option allows the user to set an unlimited number of breakpoints while debugging within a device’s internal flash memory. This overcomes the hardware breakpoint limitations present in most common microcontrollers (2 on ARM7/9, 4 on Cortex-M0, typically 6 on Cortex-M3, and 8 on Renesas RX).
Full product specifications are available at