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BKB's avatar
BKB
Icon for Occasional Contributor rankOccasional Contributor
8 months ago

How to determine if FPGA is faulty/stopped working

Hi, Die U2 in one of the dual die FPGA (1SG10MHN3F74C2LG) in one of our board is stopped working. Die U1 works but Die U2 does not. The same design in other FPGA die U2 works. I understand that I...
Configuration
FakhrulA_altera's avatar
FakhrulA_altera
Icon for Regular Contributor rankRegular Contributor
8 months ago

Hi BKB,


Yes, probing CONF_DONE, nSTATUS, and nCONFIG is the direct way to check configuration status. If that’s not possible, here are some alternatives:


JTAG scan: Check if both dies are detected.

Power rails: Ensure all required voltages are stable.

Simplified SOF: Try programming only Die U2 via JTAG to isolate the issue.

Check for any damage: Thermal, ESD, or solder issues can affect only one die.


You may refer to Intel® Stratix® 10 Configuration User Guide: [https://cdrdv2.intel.com/v1/dl/getContent/772137?fileName=ug-s10-config-683762-772137.pdf]. It has the Debugging Guidelines for each configuration scheme.


Regards,

Fakhrul