Segger Microcontroller Systems

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Segger Microcontroller
Type GmbH
Industry Embedded Software
Founded 1997
Headquarters Hilden, Germany
Winchendon, MA USA
Products Middleware Components, JTAG Development Tools

Segger Microcontroller is a private multinational company dealing in middleware for embedded devices as well as development and programming tools. The company, the GmbH has been founded in 1997, is headquartered in Hilden, Germany with a US office in Winchendon, Massachusetts.


Segger is most noted for its JTAG / SWD emulator for ARM-based microcontrollers, such as ARM7, ARM9, ARM11, Cortex-M0 / M0+ / M1 / M3 / M4, Cortex-R4 / R5, Cortex-A5 / A8 / A9 cores, Renesas RX, and Microchip PIC32. This device is called the J-Link.[1] It is also repackaged and sold as an OEM item[2] by Analog Devices as the mIDASLink, Atmel as the SAM-ICE, Digi International as the Digi JTAG Link, and IAR Systems as the J-Link and the J-Link KS. This is the only JTAG emulator that can add Segger's patented Flash breakpoint software to a debugger to enable the setting of multiple breakpoints in Flash while running on an ARM device which is typically hindered by the limited availability of hardware breakpoints.[3] For enhanced emulation features Segger offers a Trace Emulator, J-Trace that works with the ARM ETM interface and enables engineers to trace back their code execution.


Segger offers one of the smallest complete ANSI "C" embedded graphics package and GUI available.[4][5] Segger's RTOS (embOS) is part of Oki Semiconductor's World's first complete ARM-based ZigBee Developer's Kit.[6]


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