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Altera_Forum
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14 years ago

Using SignalTap II without JTAG?

Hello, I have board where I can't connect to the FPGA's JTAG pins. Nevertheless, it would be nice to be able to use the SignalTap II tool to have a look what is going on inside the FPGA - a Cy...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

My general opinion about the problem: A board without JTAG connectivity is wrong from the start.

Particularly, there are two points aigainst your intention:

- You would need to create a connection between the Quartus JTAG stack and your custom interface, but the Quartus JTAG stack is completely undocumented.

- You would need to modify the virtual JTAG hub, but it's protected IP.