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When I complied my project yesterday, QuartusII software gave me a error message:
Error: Can't place 108 pins with 2.5 V I/O standard because Fitter has only 81 such free pins available for general purpose I/O placement.
I know there are more pins in my projects than the device could provided, but I seemed to once seen that QuartusII could assign some virutal pins, I did not know how to made these assignments in QuartusII.
I used CycloneIII device and QuartusII8.1.
Could anyone tell me where I can made the assignemts in QuartusII for the virtual pins, or the blurry memories that I remembered was wrong?
Any suggestion is greatly appreciated!
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You can do that on the Quartus Assignments Editor by making unused pins as Virtual
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