Invalid JTAG configuration
Hi
Quartus 24.1 standard edition & Windows 11
I tried a new usb blaster ii today and ran into a problem. The computer recognized the blaster ii and installed drivers automatically. I was able to use the programmer to program the Max 10 device, so I know the jtag chain is working. However, I have a message that I have an invalid JTAG configuration in signal tap. The problem seems to be related to selecting hardware in the jtag chain configuration. I selected usb blaster ii in the pulldown box and close the window (attached). I then try to run signal tap and initially it says acquisition in progress but then says invalid JTAG configuration (attached). When I go back to the JTAG Chain Configuration, the pull-down selector says no hardware. I also see that the signal tap status says “instance not found”. I can reselect usb blaster ii but it always goes back to No hardware after I close the hardware setup window.
I updated the usb blaster manually but that didn’t help. I checked that the jtag status and server info using the command line and they look to be running.
I have deleted the db directory and did a full recompilation without any success.
I finally went back and changed the Hardware Frequency to 1MHHz and was able to run. I even managed to change the Hardware frequency back up 26MHz after I got it to run. I was running all day until I changed the name of the .stp file and then it stopped working till I changed the Hardware Frequency back to 1MHz
Any idea what is going on?
Any help is appreciated
Hi Frank,
I am able to get it to work reliably at 16MHz
Thanks