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Altera_Forum
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8 years ago

Read CHIP ID from JTAG

Is there a JTAG IR code that reads back the unique chip ID? I'm hoping to read the chip ID back with a code like this: device_ir_shift -ir_value <CHIP-ID-IR> -no_captured_ir_value device_dr_s...
Altera_Forum's avatar
Altera_Forum
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8 years ago

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Thank you for the response. Unfortunately that’s not a chip serial number it’s only a 32-bit identifier that gives only the family and stuff. It’s not unique across devices of the same family as you can see in your example.

Altera has a chip id IP that provides a unique 64-bit id but I’d like to read that ID from jtag without instantiating the ip in the design.

Cheers,

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So this is something only a few of the newer devices support: https://www.altera.com/en_us/pdfs/literature/ug/altchipid.pdf

There is a note that the ID is accessible thru JTAG for the Arria 10 and Cyclone 10 GX, but it appears you still need to instantiate the IP block.