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Altera_Forum
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14 years ago

Cyclone III stuck at POR?

Hi, I have problems to get a custom board work, the FPGA seems to be stuck in POR. It's a PCIe card with a EP3C10F256C7N. I attached an excerpt of the schematic to this post. I have 10 pro...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

It looks like we've found the reason for the POR fault, finally. The PCB was manufactured faulty, none of the VCCINT pins were connected to 1.2V. We found this after de-soldering the FPGA from the board. The PCB was supposed to be 100% electrically tested - apparently it was not.

Thanks to all your tips and hints!

Regards,

Jürgen