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Altera_Forum's avatar
Altera_Forum
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10 years ago

SignalTap-II -> "instance not found" error

Hi all, I'm receiving the "instance not found" error on the SignalTap-II - attached please find the window snapshot. Actually the error occurred when I added signals for debug. I did the full ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
9 years ago

I realize this is an old thread, but I'm having this same problem. I have inserted a SignalTap instance into my design, and verified that it is included in the build via "assignments -> settings -> SignalTap II Logic Analyzer". I have also viewed the fit report log file and see that there is a SignalTap instance consuming logic resources in my design. Compilation completes without error and I can scan the JTAG chain and (after triple-checking the path) load the .sof via SignalTap. After loading the FPGA, I see the same "Invalid JTAG configuration" and "Instance not found" errors as the OP.

I have re-inserted SignalTap logic and re-compiled multiple times, and double checked my paths multiple times. I'm at a loss for what could be going wrong.