JTAG presenting an UNKNOWN_2E120DD on Auto Detect

[BHoey]

The odd thing is that that is the correct JTAG ID for the Cyclone 10 GX device. We can program the part but SignalTap cannot identify the image as having a STP instance.

This is USBB-II. I've dropped the clock to 6MHz. I've tried Quartus Pro 17.1 and 18.0.

What could prevent Quartus from matching a JTAG ID to a device family?

[SAR]

You are able to program the fpga using programmer but not using signal-tap.Am i correct?

Have you tried with  24M & 16M?

[BHoey]

24M was the default where we started. Same issue. 6M was an attempt to gain more margin.

[BHoey]

It was a jtagserver issue. I killed jtagserver, removed the USBBII and then downloaded and installed v18.0 pro programmer.

That got a local Win10 machine working.

I then did the same on a Linux (Ubuntu 16.04) machine that serves as a remote server. Installed v18.0 pro programmer and copied the pgm_parts.txt file over to /etc/jtagd/jtagd.pgm_parts

Killed jtagd and relaunched the v18.0 version.

So far looking OK.