USB to JTAG converter Solution

Hi,

I am designing a USB to JTAG convertor for one of my application and wants to evaluate possible solution available.Are there any application notes/Reference designs available?

I have to interface a CPLD based Dev board with a USB Programmer/Debugger.

Regards,

Raashid

Former Member over 15 years ago

Look at anything based on FDTI chips.

I've used FT2232 and UrJTAG with success.
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Former Member over 15 years ago

Might be helpful.

Xilinx In-System Programming Using an Embedded Microcontroller:
http://www.xilinx.com/support/documentation/application_notes/xapp058.pdf

Now all you need is a microcontroller with USB!
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mindthomas over 14 years ago

Hi Raashid.
I can recommend using the FT2232 chip from FTDI for JTAG communication. It is very easy to use together with OpenOCD (for ARM programming and debugging) and together with urJTAG for CPLD and FPGA programming etc.
I've currently made my own JTAG adapter using that chip, and it is working very well. You can read more about it and see a video here: http://blog.tkjelectronics.dk/2010/12/unijtag/
I will be posting a short guide how to use it with OpenOCD and urJTAG soon.

Edit: Btw. I just noticed that it's a pretty old thread I started digging in

Best Regards
Thomas Jespersen
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