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JayMahr's avatar
JayMahr
Icon for New Contributor rankNew Contributor
3 years ago

Stratix IV GX IDCODE

Hi - I'm a test engineer for a PCBA contract manufacturer working on a failure for a Defense customer product employing the Xilinx Stratix IV GX FPGA. The device is returning the wrong IDCODE dur...
Farabi's avatar
Farabi
Icon for Regular Contributor rankRegular Contributor
3 years ago

Hello,


For the FPGA configuration issue, can you program the FPGA using JTAG? this is to make sure the device connection is good.


regards,

Farabi


JayMahr's avatar
JayMahr
Icon for New Contributor rankNew Contributor
3 years ago

Hi -

Apologies for my late reply here ('was' struggling to recover my pw).

We were unable to program the FPGA as it didn't appear to be getting far enough into boot to accept the programming. Additionally, after speaking a little more with the technician, he indicated the failure mode was different after replacing the IC. This now makes me believe we did not achieve a good "collapse" of the BGA when it was attached. The assembly went through the removal, re-ball, and reinstall process and is able to pass Boundary Scan now.

Thank you for your recommendations.

Best Regards.