SparkFun

SEGGER J-Link EDU Mini JTAG/SWD Debug Probe with USB-C Cable

Name: SEGGER J-Link EDU Mini JTAG/SWD Debug Probe with USB-C Cable
Brand: SparkFun
SKU: SF-PGM-31107
Price: 199.05 AUD
Availability: InStock

· MPN: PGM-31107

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The SEGGER J-Link EDU Mini is a compact JTAG/SWD debug probe for students and hobbyists working with Arm® and RISC-V-based microcontrollers. It delivers core...

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The SEGGER J-Link EDU Mini is a compact JTAG/SWD debug probe for students and hobbyists working with Arm® and RISC-V-based microcontrollers. It delivers core J-Link debugging and flash programming functions in a small, minimal form factor.

Use it to halt program execution, read or write memory addresses, inspect an MCU in a live system, and quickly load code into the internal flash of supported microcontrollers. It connects over USB-C and presents a standard 9-pin 0.05-inch Samtec FTSH connector for the target interface.

This version includes a USB-C cable. Please note that the J-Link EDU Mini is licensed for non-profit educational purposes only, and it does not come with official direct support; the SEGGER community forum is available for user-to-user help.

Features:

Fast Download Rates: Quickly load your code directly into the internal flash of supported microcontrollers.
Unlimited Breakpoints: Set an unlimited number of breakpoints within flash memory for comprehensive evaluation.
Modern Connections: Interfaces easily with your hardware using a modern USB-C port and a standard 9-pin 0.05-inch Samtec FTSH connector.

Specifications:

Supported OS: Microsoft Windows (x86/x64)
Supported OS: Linux (x86/x64/Arm)
Supported OS: macOS (x86/Apple Silicon)
Electromagnetic compatibility (EMC): EN 55032
Electromagnetic compatibility (EMC): EN 55035
Operating Temperature: +5°C ~ +60°C
Storage Temperature: -20°C ~ +65 °C
Relative Humidity (non-condensing): Max 90% rH
Size (without cables): 42.5mm x 22mm x 8mm
Weight (without cables): 10g
Available Interfaces: USB-C
Available Interfaces: 9-pin 0.05" Samtec FTSH connector
Power Supply: USB powered, max 30mA
Target Interface Voltage (VIF): 1.8V, 3.3V
Current drawn from target voltage sense pin (VTRef): < 170µA
Reset Type: Open drain with 150 Ohms series resistor. Can be pulled low or tristated
JTAG speed: Max. 4 MHz
SWO sampling frequency: Max. 4 MHz
Data input rise time (Trdi): Trdi <= 20ns
Data input fall time (Tfdi): Tfdi <= 20ns
Data output rise time (Trdo): Trdo <= 10ns
Data output fall time (Tfdo): Tfdo <= 10ns
Clock rise time (Trc): Trc <= 10ns
Clock fall time (Tfc): Trc <= 10ns

Documentation available for this probe includes a Getting Started Guide, User Guide and Downloads.

Jargon buster

Plain-language definitions for the technical terms used above.

Flash memory: Flash memory is non-volatile memory that retains stored data even when power is removed, and can be erased and rewritten in blocks. It lets data such as firmware, settings or saved records persist across power cycles.
JTAG: JTAG is a hardware debugging and programming interface used to inspect and control chips at a low level. It matters for advanced development because it can help diagnose firmware problems that are hard to see through normal serial output.
RISC-V: RISC-V is an open, royalty-free processor instruction-set architecture used in chips ranging from tiny microcontrollers to Linux-capable application processors. The choice of RISC-V determines which compilers, software tools, and performance or low-power features are available, separate from the more common Arm or x86 architectures.
SWD: Serial Wire Debug (SWD) is a two-wire programming and debugging interface used with many ARM Cortex-M microcontrollers. It provides low-level access to program, recover or debug the microcontroller.
USB-C: USB-C is a small, reversible USB connector that can carry power, data and, on some devices, video over a single cable. The same connector can range from charging only to high-speed data, so the functions a given port actually supports vary.