Introduction to the J-Link Debug Probe

SEGGER J-Link Debug Probe


SEGGER's J-Link Debug Probes are USB-powered in-circuit programmer/debuggers supporting PIC32 devices through the JTAG interface.

Supported by MPLAB® X IDE (v2.15 and later), they provide cross-platform support (Windows, Linux, Mac OS X) and can be used to program or debug any PIC32 microcontroller using a JTAG or In-Circuit Serial Programming (ICSP) interface.

Typical Implementation

The J-Link Debug Probe, in conjunction with the Microchip adapter, presently supports the Microchip PIC32 product line through either the ICSP (2-wire) or JTAG (4-wire) interface. Below is an illustration of a typical implementation:


J-Link Debug Probe Configurations

SEGGER provides a wide variety of J-Link Debug Probes, but the configurations that support the PIC32 are summarized below:


J-Link PRO

The J-Link PRO has the most features and includes an Ethernet interface to enable remote debugging of the target. It also has a high-speed USB interface (3.0MB/sec) and has a maximum target (JTAG) interface speed of 50 MHz.



The J-Link ULTRA+ is the J-Link PRO without the Ethernet interface.


J-Link BASE, and J-Link EDU

The J-Link BASE and J-Link EDU share the same hardware. These models have a full-speed USB interface (1.0MB/sec) and have a maximum target (JTAG) interface speed of 15 MHz.

  • J-Link BASE can provide unlimited software breakpoints (additional license fee required).
  • J-Link EDU is intended for non-commercial and educational purposes only. There is no licensing fee needed for the unlimited software breakpoints, but support is limited and available through the SEGGER forums only.
J-Link Programmer/Debugger Model
(Clickable Links)
Maximum JTAG
Target Speed
Host Interface Approximate
J-Link PRO 50 MHz High-Speed USB and Ethernet $998 USD
J-Link ULTRA+ 50 MHz High-Speed USB $748 USD
J-Link BASE 15 MHz Full-Speed USB $378 USD
J-Link EDU 15 MHz Full-Speed USB $60 USD

More details on the various J-Link models can be found on SEGGER's website

20th Annual
Microchip MASTERs Conference 2016
Register now - Deadline: July 29

JW Marriott Desert Ridge Resort-Phoenix, AZ

© 2016 Microchip Technology, Inc.
Information contained on this site regarding device applications and the like is provided only for your convenience and may be superseded by updates. It is your responsibility to ensure that your application meets with your specifications. MICROCHIP MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED, WRITTEN OR ORAL, STATUTORY OR OTHERWISE, RELATED TO THE INFORMATION, INCLUDING BUT NOT LIMITED TO ITS CONDITION, QUALITY, PERFORMANCE, MERCHANTABILITY OR FITNESS FOR PURPOSE. Microchip disclaims all liability arising from this information and its use. Use of Microchip devices in life support and/or safety applications is entirely at the buyer's risk, and the buyer agrees to defend, indemnify and hold harmless Microchip from any and all damages, claims, suits, or expenses resulting from such use. No licenses are conveyed, implicitly or otherwise, under any Microchip intellectual property rights.