Segger J-Link family ARM debug probes and Memory Programmers

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J-Link debug probes

SEGGER J-Links are the most widely used line of debug probes on the market. They have provided solid value to embedded development for over a decade. Unparalleled performance, an extensive feature set, many supported CPUs and compatibility with popular environments all make J-Link an unbeatable choice.

J-Link debug probes are the most popular choice for optimizing the debugging and flash programming experience. Benefit from record-breaking flash loaders, up to 4 MB/s RAM download speed and the ability to set an unlimited number of breakpoints in the flash memory of MCUs.J-Link also supports a wide range of CPUs and architectures. Everything from single 8051 to mass market Cortex-M to high-end cores like Cortex-A (32- & 64-bit).J-Link supports directly interfacing SPI flashes, without the need of a CPU between J-Link and the SPI flash (directly communicating via the SPI protocol). J-Link is further supported by all major IDEs, including SEGGER Embedded Studio or Visual Studio Code.
Related documentation:

J-link SWO in Segger wiki

J-link- list of utilities

J-link commander

J-link RTT

Different HW trace types

Debug and trace connectors

Jlink-plus compact

Segger J-Link family ARM debug probes and Memory Programmers

Jlink-Base

J-Link BASE is a USB-powered JTAG debug probe supporting a large number of CPU cores. Based on a 32-bit RISC CPU, it can communicate at high speed with the supported target CPUs. J-Link is used around the world in tens of thousand places for development and production (flash programming) purposes.

The J-Link debug probes are supported by all major IDEs including Eclipse, GDB-based IDEs and SEGGER Embedded Studio. For a complete list, please refer to supported IDEs. Including all models, more than 1,000,000 J-Links have been shipped so far, making J-Link probably the most popular debug probe for Arm cores and the de-facto standard.

The J-Link BASE as a member of the SEGGER J-Link debug probes supports a wide range of CPU cores. The list of supported manufacturers, families, and devices and SoCs includes tens of thousands of devices in hundreds of device families.

Jlink-Plus

J-Link PLUS is a USB-powered JTAG debug probe supporting a large number of CPU cores. Based on a 32-bit RISC CPU, it can communicate at high speed with the supported target CPUs. J-Link is used around the world in tens of thousands of places for development and production (flash programming) purposes. with Jlink plus you can use Jflash programing software to program the MCU without the need of using the development IDE.

Jlink Ultra+

Up to 4 MB/s download speed make J-Link ULTRA+ the fastest debug probe on the market.

it also has fast SWO speed for fast output from the target.

Jlink-Pro

J-Link PRO is fully compatible with J-Link and can be used “out-of-the-box”. J-Link PRO uses DHCP per default. The built-in web server makes manual configuration easy. Ethernet allows the use of the debug probe far away from the PC, over a hardwired or wireless network, in a development or production environment. It also makes download and debugging speeds higher and provides electrical isolation from the PC. The product also comes with all features of the regular J-Link.