JScan Boundary Scan Kit
The Macraigor Systems J-Scan lets you view and control JTAG pins in real time without having to touch your board! With a simple Click Board™ of your mouse, you can set pins HIGH or LOW and observe the results right from your PC screen.
The Macraigor Systems allows you to take full control of your JTAG scan chain and all the devices on it. A low-level utility to do anything you need to do during test and debug of your JTAG enabled target.