Awesome

clujtag

Very simple JTAG programmer based on AVR microcontroller with hardware USB.

You can use it to flash SVF or XSVF files via JTAG interface.

How to build:

• You need LUFA library, download it here: http://www.fourwalledcubicle.com/LUFA.php
• Edit Makefile, set path to LUFA library and microcontroller type
• Edit defines.h to set JTAG pins and optionally led pin
• Compile and flash it

Device should be detected as virtual serial port. Under Windows use clujtag.inf as driver if necessary. Now you can use client to play SVF or XSVF files: https://github.com/ClusterM/clujtag-client