Segger Microcontroller Systems

Segger Microcontroller, founded in 1992, is a private company involved in the embedded systems industry. It provides products used to develop and manufacture four categories of embedded systems: real-time operating systems (RTOS) and software libraries (middleware), debugging and trace probes, programming tools (integrated development environment (IDE), compiler, linker), and in-system programmers (Flasher line of products). The company is headquartered in Monheim am Rhein, Germany, with remote offices in Gardner, Massachusetts; Milpitas, California; and Shanghai, China.

"Segger" redirects here. For other uses, see Segger (disambiguation).
Segger Microcontroller
TypeGmbH
IndustryEmbedded software
Founded1992 (1992)
HeadquartersMonheim am Rhein, Germany
ProductsMiddleware components, JTAG development tools
Websitewww.segger.com

History

Segger Microcontroller was founded in 1992 by Rolf Segger in Hilden, Germany. The first product was the real-time operating system (RTOS), now named embOS. It was followed by emWin two years later. Initial products focused on RTOS and middleware products. However, the company later produced ISP-programming tools (Flasher) and debug probes (J-Link). In 2015, Segger introduced Embedded Studio, their cross-platform IDE for central processing units conforming to the ARM architecture, though recent versions are also used by RISC-V. All products are developed, maintained and updated in Germany except for Embedded Studio, which is primarily developed by a team of developers in the United Kingdom.

Product categories
Segger J-Link JTAG and SWD debug probes for ARM microcontrollers
PRO version interfaces to host via USB and Ethernet
EDU version interfaces to host via USB only; low price model for education and hobby uses

Segger is most noted for its J-Link family, which supports JTAG (Joint Test Action Group) and SWD (Serial Wire Debug) debug probes for microcontrollers that have older ARM cores (ARM7, ARM9, ARM11), ARM Cortex-M cores (M0, M0+, M1, M3, M4, M7, M23, M33, M85), ARM Cortex-R cores (R4, R5, R8), ARM Cortex-A cores (A5, A7, A8, A9, A12, A15, A17, A53, A72), Renesas RX, Microchip PIC32, SiLab EFM8, RISC-V.[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]

Models[4]
Model*Host
USB		Host
Ethernet		Host
Wi-Fi		Target
connector		Trace
connector		Target
voltage		Target max
interface speed		Target max
download speed
J-Trace PRO Cortex3.0 SS1 Gbit/sNo20-pin 0.1"19-pin 0.05"
1.2V to 5V
50 MHz
3 MByte/s
J-Trace PRO Cortex-M3.0 SS1 Gbit/sNo20-pin 0.1"19-pin 0.05"
1.2V to 5V
50 MHz
3 MByte/s
J-Link PRO2.0 HS100 Mbit/sNo20-pin 0.1"No
1.2V to 5V
50 MHz
3 MByte/s
J-Link ULTRA+2.0 HSNoNo20-pin 0.1"No
1.2V to 5V
50 MHz
3 MByte/s
J-Link WiFi2.0 HSNo802.11b/g/n20-pin 0.1"No
1.2V to 5V
15 MHz
1 MByte/s
J-Link PLUS2.0 HSNoNo20-pin 0.1"No
1.2V to 5V
15 MHz
1 MByte/s
J-Link BASE2.0 HSNoNo20-pin 0.1"No
1.2V to 5V
15 MHz
1 MByte/s
J-Link EDU2.0 HSNoNo20-pin 0.1"No
1.2V to 5V
15 MHz
1 MByte/s
J-Link EDU Mini2.0 FSNoNo9-pin 0.05"No3.3V4 MHz0.2 MByte/s
  • Note: Further models are J-Link LITE ARM, J-Link LITE CortexM, J-Link LITE RX, J-Link OB, J-Link OEM.[5]
  • Note: PLUS, BASE, EDU models are physically the same hardware. There are differences in license and software options, such as GDB Server, Flash Download, Unlimited Flash Breakpoints, J-Flash, RDI, RDDI.
  • Note: The EDU & EDU Mini models cannot be used for commercial software development, also doesn't have J-Flash, J-Flash SPI, RDI, RDDI features.
  • Note: Adapters and isolators are available to convert the 20-pin 0.1"/2.54mm male shrouded (box) header to another target board connector.[6]

See also

References
  1. Segger J-Link Product Line
  2. Advertisement
  3. Circuit Cellar - Digital Library - New Product News Archived 2007-03-11 at the Wayback Machine
  4. J-Link Model Overview; segger.com
  5. Other J-Links; segger.com
  6. J-Link adapters and isolators; segger.com
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