I have a cheap Altera Cyclone II EP2C5T144C8 Dev Board and a few (4) of the IO/LVDS pins are shorted to VCC or GND as shown in the schematic segment below. The pins are also brought out to headers on the board.
The only things I can think of for why they are there are:
- They are meant to be left non-populated (but were accidentally populated) for the user to add pull-up/pull-down resistors
- They are somehow helping power the FPGA
Is there any reason a direct short to VCC/GND would be desirable for an IO pin on a Dev Board? Can I remove these resistors without negatively impacting the board's performance?