The J-Link line of JTAG programmers from Segger is well known for their top of the line debuggers. The 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 Base is a great option for those getting started with JTAG/SWD programming and debugging. Unlike the EDU Mini and the EDU this version comes with a license that allows you to build commercial products with it.
With a USB port on one end, and a 20-pin JTAG connector on the other end, just plug in the included cable and connect to your favorite ARM board, or just connect the pins you need, to get started.
Features
Unlimited Breakpoints
Free Software updates
Supports concurrent access to CPU by multiple applications
Crossplatform support（Windows, Linux, macOS）
Linux and Mac versions are limited to J-Link Commander, command line GDBServer, shared library（DLL equivalent）
Size：47mm×40mm×14mm
Weight：20g
Target Interface Voltage：1.2V ... 5V
Target Supply Voltage：5V（derived from USB voltage）
