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Altera_Forum's avatar
Altera_Forum
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18 years ago

Hot FPGA!

My FPGA gets really hot after configuration. I've checked my power pins, and they are all connected to the correct supplies which are all within tolerance. Any other suggestions?
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
18 years ago

Good suggestions from all. I'd like to add, if you have a way of measuring power supplied to the core or bank power supplies, check to see which is responsible for supplying all the current. If it’s the core, then it’s not I/O contention problem (i.e. IO set as GND driving against VCC on the board). If you can turn off clocks, then it could be asynchronous circuit free running as someone indicted. If it’s the I/O, along with the suggestions already provided in previous posts, check buses to make sure no two chips are contending also.