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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.
 | |
| Company type | GmbH |
|---|---|
| Industry | Embedded software |
| Founded | 1992 |
| Headquarters | Monheim am Rhein, Germany |
| Products | Middleware components, JTAG development tools |
| Website | www |
History
editSegger 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
editDebug and trace probes
editSegger 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.
| 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
editReferences
edit- ^ "Home Page". Segger. Archived from the original on December 6, 2024.
- ^ "About Us - The Company". Segger. Archived from the original on December 6, 2024.
- ^ Segger J-Link Product Line
- ^ Advertisement
- ^ Circuit Cellar - Digital Library - New Product News Archived 2007-03-11 at the Wayback Machine
- ^ "J-Trace Products". Segger Microcontroller Systems. Archived from the original on October 7, 2024.
- ^ "J-Link Products". Segger Microcontroller Systems. Archived from the original on November 12, 2024.
- ^ Other J-Links; segger.com
- ^ J-Link adapters and isolators; segger.com
External links
edit