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BTanner's avatar
BTanner
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3 years ago

JTAG 10AS027 F34

The JTAG communication using the Quartus programmer fails to read the device ID. The JTAG chain appears to work, as data can be send through the device (debug JTAG tools in the Quartus Programmer). ...
NurAiman_M_Intel's avatar
NurAiman_M_Intel
Icon for Super Contributor rankSuper Contributor
3 years ago

Hi,


-When you swap the with another working FPGA, the same error still exist?

-Did the current board working fine before?

-Have you try to use the not working FPGA, on another working board? Is it working fine?


Regards,

Aiman


BTanner's avatar
BTanner
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3 years ago

Yes, we swapped with a working FPGA. The board had been working for many months and then failed (JTAG programming). The device was still working with the configuration that was already present. No, we didn't try the removed FPGA in another board.

Is the TDI to TDO path within the arria 10 registered or just a pass through? If it is registered, then the TCK is being received by the FPGA. If a pass through, then there is no way to determine if the TCK is actually going into the part. Same with TMS.