Setting the I/O bank voltage

I have listed the steps below to resolve this issue.

The problem occurred because the external configuration device connected on those banks was defaulting to a 2.5V I/O standard in Quartus II. Quartus II 7.2 now has an option to define the Configuration bank pins I/O voltage specifically.

The Steps are

1. Open the project in Quartus II 7.2

2. Select Assignments ---> Device "pull down menu"

3. Press the Device & Pin Options "Button"

4. Select the Configuration "tab"

5. Select 1.8V in the Configuration device I/O voltage "pull down window"

6. Select OK in both windows to exit

7. Recompile the design