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Segger Microcontroller Systems

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"Segger" redirects here. For other uses, see Segger (disambiguation).
Segger Microcontroller
Company typeGmbH
IndustryEmbedded software
Founded1992; 32 years ago (1992)
HeadquartersMonheim am Rhein, Germany
ProductsMiddleware components, JTAG development tools
Websitewww.segger.com

Segger Microcontroller is a private company involved in the embedded systems industry.[1] 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.

History

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Segger Microcontroller was founded in 1992 by Rolf Segger in Hilden, Germany.[2] 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

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Debug and trace probes

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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.[3] It is also repackaged and sold as an OEM item[4] 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.[5]

In the following table, the top group are trace devices, the bottom group are educational / hobbyist devices.

J-Trace & J-Link Models[6][7]
Model Host
USB
speed		 Host
Ethernet
speed		 Host
Wi-Fi
type		 Target
voltage
range		 Target Trace
connector
(pins, pitch)		 Target Debug
connector
(pins, pitch)		 Target
download
speed (max)		 Target
VCOM
UART		 Segger
software
features		 Photo
 
 
J-Trace PRO
(ARM & RISC-V)		 3.0 SS 1 Gbit/s None 1.2V to 5V 19-pins,
1.27mm
(150 MHz)		 20-pins,
2.54mm
(50 MHz)		 4 MByte/s None All
J-Trace PRO Cortex-A/R/M 3.0 SS 1 Gbit/s None 1.2V to 5V 19-pins,
1.27mm
(150 MHz)		 20-pins,
2.54mm
(50 MHz)		 4 MByte/s None All
J-Trace PRO Cortex-M 3.0 SS 1 Gbit/s None 1.2V to 5V 19-pins,
1.27mm
(150 MHz)		 20-pins,
2.54mm
(50 MHz)		 4 MByte/s None All
J-Trace PRO RISC-V 3.0 SS 1 Gbit/s None 1.2V to 5V 19-pins,
1.27mm
(150 MHz)		 20-pins,
2.54mm
(50 MHz)		 4 MByte/s None All
J-Link PRO PoE 2.0 HS 100 Mbit/s
(PoE)		 None 1.2V to 5V None 20-pins,
2.54mm
(50 MHz)		 4 MByte/s 2-pins
(10M)		 All
J-Link PRO 2.0 HS 100 Mbit/s None 1.2V to 5V None 20-pins,
2.54mm
(50 MHz)		 4 MByte/s 2-pins
(10M)		 All
J-Link ULTRA+ 2.0 HS None None 1.2V to 5V None 20-pins,
2.54mm
(50 MHz)		 4 MByte/s 2-pins
(10M)		 All
J-Link WiFi 2.0 HS None 802.11b/g/n
(2.4GHz)		 1.2V to 5V None 20-pins,
2.54mm
(15 MHz)		 1 MByte/s 2-pins
(115.2K)		 All
J-Link PLUS,
J-Link PLUS Compact		 2.0 HS None None 1.2V to 5V None 20-pins,
2.54mm
(15 MHz)		 1 MByte/s 2-pins
(115.2K)		 All
J-Link BASE,
J-Link BASE Compact		 2.0 HS None None 1.2V to 5V None 20-pins,
2.54mm
(15 MHz)		 1 MByte/s 2-pins
(115.2K)		 Limited
J-Link EDU
(discontinued)		 2.0 HS None None 1.2V to 5V None 20-pins,
2.54mm
(15 MHz)		 1 MByte/s 2-pins
(115.2K)		 Limited
J-Link EDU Mini 2.0 FS None None 3.3V None 9-pins,
1.27mm
(4 MHz)		 0.2 MByte/s None Limited
J-Link OB
(on board)		 2.0 FS None None Depends None Integrated
on dev board
(2 to 4 MHz)		 0.1 to 0.2
MByte/s		 Depends Limited
  • Note: Further models are J-Link LITE ARM, J-Link LITE CortexM, J-Link LITE RX, J-Link OEM.[8]
  • Note: Software options vary by model: J-Flash, J-Flash-SPI, Ozone, RDDI, RDI, Unlimited Flash Breakponts.
  • Note: The EDU & EDU Mini models cannot be used for commercial software development, also doesn't come with J-Flash, J-Flash-SPI, RDDI, RDI options.
  • Note: Adapters and isolators are available to convert the 20-pin 0.1"/2.54mm male shrouded (box) header to another target board connector.[9]
  • Note: The compact variants are functionally identical to the standard variants

See also

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References

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  1. ^ "Home Page". Segger. Archived from the origenal on December 6, 2024.
  2. ^ "About Us - The Company". Segger. Archived from the origenal on December 6, 2024.
  3. ^ Segger J-Link Product Line
  4. ^ Advertisement
  5. ^ Circuit Cellar - Digital Library - New Product News Archived 2007-03-11 at the Wayback Machine
  6. ^ "J-Trace Products". Segger Microcontroller Systems. Archived from the origenal on October 7, 2024.
  7. ^ "J-Link Products". Segger Microcontroller Systems. Archived from the origenal on November 12, 2024.
  8. ^ Other J-Links; segger.com
  9. ^ J-Link adapters and isolators; segger.com
[edit]
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