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Valued Contributor III

How to adjust the supply voltage of Cyclone III on DE0 board

Hi all, 

I am doing an experiment on DE0 board, which requires the adjustment of supply voltage (VDD) of Cyclone III. I have read the manual of DE0 board carefully and did not find any clue to do it. It seems that the USB cable (for programming) can provide the power for DE0 board directly. Thanks very much for any help on it.
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Valued Contributor III

Hi there, 


Could you be more specific on the VDD that you are trying to adjust ? There are VCCINT, VCCIO, VCCD, and VCCA supplied/connected to the Cyclone III device.  


I'm not sure if the USB cable solely can supply enough power to run anything on the DE0 board. 


David from Terasic
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