Im trying to find out if it would be possible to build/include a USB to JTAG circuit on my experiment circuit board I'm designing. My aim is not to reinvent the wheel, but use something that is already out there, and simple/small enough to add to my PCB design.
I want to be able to program and debug my Atmel SAM3S chip using JTAG, via USB.
I've seen devices like the USB to JTAG programmer from Modular Circuits, and it looks like this can be fairly easily integrated into my design, however, I'm not too sure if their license allows this.
I've tried to Google around a bit for alternative more open sourced designs, but couldn't really find something. Can anyone refer me to a Open Source project for USB > JTAG circuits, that are available online?