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'''Segger Microcontroller''', founded in 1992, is a private company involved in the [[embedded system]]s industry.<ref name="Segger-Home">{{cite web |title=Home Page |url=https://www.segger.com/ |website=Segger |archive-url=https://web.archive.org/web/20241206190353/https://www.segger.com/ |archive-date=December 6, 2024 |url-status=live}}</ref> It provides products used to develop and manufacture four categories of embedded systems: [[real-time operating system]]s (RTOS) and software [[Library (computing)|libraries]] ([[middleware]]), [[debugging]] and [[Stack trace|trace]] probes, [[programming tool]]s ([[integrated development environment]] (IDE), [[compiler]], [[Linker (computing)|linker]]), and [[In-system programming|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==
Segger Microcontroller was founded in 1992 by Rolf Segger in [[Hilden]], Germany.<ref name="Segger-About-Company">{{cite web |title=About Us - The Company |url=https://www.segger.com/about-us/the-company/ |website=Segger |archive-url=https://web.archive.org/web/20241206190958/https://www.segger.com/about-us/the-company/ |archive-date=December 6, 2024 |url-status=live}}</ref> 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 software|cross-platform]] IDE for [[central processing unit]]s 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==
{| class="wikitable nounderlines sortable" style="text-align: center;"
|+ <big>J-Trace & J-Link Models</big><ref>{{cite web |title=J-Trace Products |url=https://www.segger.com/products/debug-probes/j-trace/ |website=Segger Microcontroller Systems |archive-url=https://web.archive.org/web/20241007101418/https://www.segger.com/products/debug-probes/j-trace/ |archive-date=October 7, 2024 |url-status=live}}</ref><ref>{{cite web |title=J-Link Products |url=https://www.segger.com/products/debug-probes/j-link/ |website=Segger Microcontroller Systems |archive-url=https://web.archive.org/web/20241112024425/https://www.segger.com/products/debug-probes/j-link/ |archive-date=November 12, 2024 |url-status=live}}</ref>
|+ <big>J-Trace & J-Link Models</big><ref>[http://www.segger.com/jlink-model-overview.html J-Link Model Overview; segger.com]</ref>
|-
! Model !! Host<br/>[[USB#Release_versions|USB]]<br />speed !! Host<br/>[[Ethernet physical layer|Ethernet]]<br />speed !! Host<br/>[[Wi-Fi#Versions_and_generations|Wi-Fi]]<br /> type !! DebugTarget<br />[[Pin header|connectorvolt]]age<br />(pin pitch)range !! Target Trace<br />[[Pin header|connector]]<br /> (pins, pitch) !! Target Debug<br/>[[voltPin header|connector]]age<br /> (pins, pitch) !! Target max<br />interfacedownload<br />speed !! Target (max<br />download<br />speed) !! Target<br />[[Virtual COM port|VCOM]]<br />[[Universal asynchronous receiver-transmitter|UART]] !! SoftwareSegger<br />featuressoftware<br /> features !! Photo<br /> <br />
|-
| style="text-align:left" | J-Trace PRO<br/>(''ARM Cortex& RISC-A/R/MV'') || {{yes|3.0 [[USB#Release_versions|SS]]}} || {{yes|1 [[Gbit/s]]}} || None || 20-pin1.2V (0.1")to 5V || {{yes|19-pin 0pins,<br/>1.05"27mm<br/>(150 [[MHz]])}} || 1.2V to 5V || {{yes|20-pins,<br/>2.54mm<br/>(50 [[MHz]])}} || {{yes|4 [[MByte]]/s}} || 2 pinsNone || All || [[File:J-Trace Cortex-ARM 1349x1466 230627.png|95px]]{{sp}}
|-
| style="text-align:left" | J-Trace PRO Cortex-A/R/M || {{yes|3.0 SS}} || {{yes|1 Gbit/s}} || None || 20-pin1.2V (0.1")to 5V || {{yes|19-pin 0pins,<br/>1.05"27mm<br/>(150 MHz)}} || 1.2V to 5V || {{yes|20-pins,<br/>2.54mm<br/>(50 MHz)}} || {{yes|4 MByte/s}} || 2 pinsNone || All || [[File:J-Trace Cortex-MARM 1349x1466 230627.png|95px]]
|-
| style="text-align:left" | J-Trace PRO RISCCortex-VM || {{yes|3.0 SS}} || {{yes|1 Gbit/s}} || None || 20-pin (01.1")2V to 5V || {{yes|19-pin 0pins,<br/>1.05"27mm<br/>(150 MHz)}} || 1.2V to 5V || {{yes|20-pins,<br/>2.54mm<br/>(50 MHz)}} || {{yes|4 MByte/s}} || 2 pinsNone || All || [[File:J-Trace RISCCortex-VM 1349x1466.png|95px]]
|-
| style="text-align:left" | J- LinkTrace PRO RISC-V || 2{{yes|3.0 HSSS}} || {{yes| 1001 MbitGbit/s}} || None || 20-pin (01. 1")2V ||to None5V || {{yes|19-pins,<br/>1. 2V to 5V27mm<br/>(150 MHz)}} || {{yes| 20-pins,<br/>2.54mm<br/>(50 MHz )}} || {{yes|4 MByte/s}} || 2 pinsNone || All || [[File:J- LinkTrace PRORISC-V 1349x1466.png|95px]] ▼| style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} <!-- NOTE - grouping divider --> ▼|-
▲| style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} <!-- NOTE - grouping divider -->
▲| style="text-align:left" | J-Link PRO || 2.0 HS || {{yes|100 Mbit/s}} || None || 20-pin (0.1") || None || 1.2V to 5V || {{yes|50 MHz}} || {{yes|4 MByte/s}} || 2 pins || All || [[File:J-Link PRO 1349x1466.png|95px]]
|-
| style="text-align:left" | J-Link ULTRA+PRO [[Power over Ethernet|PoE]] || 2.0 [[USB#Release_versions|HS]] || None |{{yes|100 None[[Mbit/s]]<br/>([[Power ||over 20-pin (0.1"Ethernet|PoE]])}} || None || 1.2V to 5V || None || {{yes|20-pins,<br/>2.54mm<br/>(50 MHz)}} || {{yes|4 MByte/s}} || {{yes|2 -pins<br/>([[Baud|10M]])}} || All || [[File:J-Link ULTRA-PLUS 1349x1466.png|95px]]{{sp}}
|-
| style="text-align:left" | J-Link [[WiFi]]PRO || 2.0 HS || None || {{yes|802.11b100 Mbit/g/n<br/>(2.4GHz)s}} || 20-pin (0.1") || None || 1.2V to 5V || 15None || {{yes|20-pins,<br/>2.54mm<br/>(50 MHz)}} || 1{{yes|4 MByte/s}} || {{yes|2 -pins<br/>(10M)}} || All || [[File:J-Link WifiPRO 1349x1466.png|95px]]
|-
| style="text-align:left" | J-Link PLUS and<br/>J-Link PLUS CompactULTRA+ || 2.0 HS || None || None || 20-pin (01.1")2V to 5V || None || 1{{yes|20-pins,<br/>2.2V to 5V || 1554mm<br/>(50 MHz)}} || 1{{yes|4 MByte/s}} || {{yes|2 -pins<br/>(10M)}} || All || [[File:J-Link PLUS Classic 1349x1466.png|95px]] [[File:JULTRA-Link PLUS-Compact 1349x1466.png|95px]]
|-
| style="text-align:left" | J-Link BASE and<br/>J-Link BASE Compact[[WiFi]] || 2.0 HS || None || None |{{yes| 20-pin 802.11b/g/n<br/>(02.1"4[[GHz]]) || None}} || 1.2V to 5V || None || 20-pins,<br/>2.54mm<br/>(15 [[MHz]]) || 1 [[MByte]]/s || 2 -pins<br/>([[Baud|115.2K]]) || {{maybe|Limited}}All || [[File:J-Link BASE Classic 1349x1466.png|95px]] [[File:J-Link BASE-CompactWifi 1349x1466.png|95px]]
|-
| style="text-align:left" | J-Link PLUS,<br/>J-Link PLUS Compact || 2.0 HS || None || None || 1.2V to 5V || None || 20-pins,<br/>2.54mm<br/>(15 MHz) || 1 MByte/s || 2-pins<br/>(115.2K) || All || [[File:J-Link PLUS Classic 1349x1466.png|95px]] [[File:J-Link PLUS-Compact 1349x1466.png|95px]]
| style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} <!-- NOTE - grouping divider --> ▼|-
| style="text-align:left" | J-Link EDUBASE,<br/>(discontinued)J-Link BASE Compact || 2.0 HS || None || None || 20-pin (0.1") || None || 1.2V to 5V || None || 20-pins,<br/>2.54mm<br/>(15 MHz) || 1 MByte/s || 2 -pins<br/>(115.2K) || {{maybe|Limited}} || [[File:J-Link EDUBASE Classic 1349x1466.png|95px]] [[File:J-Link BASE-Compact 1349x1466.png|95px]]
|-
▲| style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} || style="background: black;" | {{sp}} <!-- NOTE - grouping divider -->
| style="text-align:left" | J-Link EDU Mini || {{maybe|2.0 FS}} || None || None || {{maybe|9-pin (0.1")}} || None || {{maybe|3.3V}} || {{maybe|4 MHz}} || {{maybe|0.2 MByte/s}} || {{no|None}} || {{maybe|Limited}} || [[File:J-Link EDU-mini 1349x1466.png|95px]] ▼|-
| style="text-align:left; background: #FFE3E3; color: black" | J-Link OB EDU<br/>(on board'''discontinued''') || {{maybe|2.0 FS}}HS || None || None || {{maybe|Integrated}}1.2V ||to None5V || {{maybe|Depends}}None || {{maybe|420-pins,<br/>2.54mm<br/>(15 MHz}}) || {{maybe|0.21 MByte/s}} || {{maybe|Depends}}2-pins<br/>(115.2K) || {{maybe|Limited}} || [[File:J-Link EDU 1349x1466.png|95px]]
|-
▲| style="text-align:left" | J-Link EDU Mini || {{maybe|2.0 [[USB#Release_versions|FS ]]}} || None || None || {{maybe| 9-pin (03. 1")3V}} || None || {{maybe| 39-pins,<br/>1. 3V}} || {{maybe|27mm<br/>(4 [[MHz ]])}} || {{maybe|0.2 [[MByte ]]/s}} || {{no|None }} || {{maybe|Limited}} || [[File:J-Link EDU-mini 1349x1466.png|95px]]
|-
| style="text-align:left" | J-Link OB<br/>(''on board'') || {{maybe|2.0 FS}} || None || None || {{maybe|Depends}} || None || {{maybe|Integrated<br/>on dev board<br/>(2 to 4 MHz)}} || {{maybe|0.1 to 0.2<br/>MByte/s}} || {{maybe|Depends}} || {{maybe|Limited}} ||
|}
* Note: Further models are J-Link LITE ARM, J-Link LITE CortexM, J-Link LITE RX, J-Link OEM.<ref>[http://www.segger.com/other-j-links.html Other J-Links; segger.com]</ref>
* 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 [[Pin header|male shrouded (box) header]] to another target board connector.<ref>[http://www.segger.com/jlink-adapters.html J-Link adapters and isolators; segger.com]</ref>
* Note: The compact variants are functionally identical to thetheir standardlarger variants.
==See also==
| 