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MUmbr2's avatar
MUmbr2
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6 years ago

4 USB-Blasters keep getting assigned different indexes when using quartus_jli.exe (system power cycle or not). How can I programmatically find out the correct index to use for each device?

We are developing an automated test system that needs to run JTAG scripts using 4 USB-Blasters (1 per product). We are running scripts using quartus_jli.exe and we need to specify the correct device ...
MUmbr2's avatar
MUmbr2
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5 years ago

Hi ShafiqY,

Thank you for the pointer, however your screenshot shows that both devices have the same ID. I get the exact same on my machine, i.e. no unique identifier for each cable. Do you happen to know where I can find a list of properties for the JTAG Cable? If there is a blank field, such as, "description", I could maybe apply a unique identifier myself? Using --setparam

The other option would be to try and remove all of the cables programmatically and then add the in the order I need them in. I'm also running Windows, which might make it difficult to go very low level.

ShafiqY_Intel's avatar
ShafiqY_Intel
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5 years ago

Hi MUmbr2,

If you have similar ID for x4 JTAG cable with devices, I think the best option is as you idea above. Remove all the cables, then add them one by one, and identify their specific device index number (jtagconfig).

This is the best option you can do.

Thanks