JTAGs based on FT2232C

Development Boards MicroMod
1

I notice that OpenOCD supports jtags that use a FT2232C. Since I don’t have a parallel port, the Wiggler isn’t exactly an option for me.

The only JTAG I could find like this is the

[Amontech JTAGkey.

However, it looks as if the FT2232C actually provides just about everything you need for JTAG. They even have an [Appnote on it.

So, I was thinking of trying to make my own JTAG adapter around this part, but before I did I wanted to see if anyone else had tried this, and what gotchas they ran into.](http://www.ftdichip.com/Projects/MPSSE.htm#JTAG)](YOKUBET : Situs Resmi Slot Gacor Scatter Hitam Rate Tertinggi)

2

The Amontec JTAGkey is nice, as it offers variable target voltages, and comes in a nice and small case, but of course you can build one yourself, too.

My diploma thesis (available at the project site) describes the “USBJTAG-1” which I originally used to write the FT2232 support. It consists of a DLP-2232M evaluation module from FTDI and a 3.3V voltage regulator, and is really easy to build yourself.

3

I am in the process of making a PCB which has both the FTDI chip and a LCP2103 chip on the PCB. I will be releasing the design under the GPL2. I do no want to release it at this time as I do not have the PCBs back from the Manufacturer.

Let me know if you are interested in finding out more when I have actually made up my first couple of boards.

All the best.