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Altera_Forum's avatar
Altera_Forum
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16 years ago

Problem with CycloneIII custom board

Hi, I have a crazy problem with my design and I have no idea what I can do. I have designed a custom FPGA board. The board has an EP3C120F484 in combination with an EPCS64 config device. ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Hi,

after many tests we found the problem.

In the power plane of the FPGA-board there were some small power islands, which weren't connected with this plane.

Since I have connected these islands to correct power pads, the board works fine in any combination.