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Altera_Forum
Honored Contributor
17 years agoVoltage on output pin
I have a de2 altera with cyclone ii fpga. When i see the voltage on the oscilloscope of the output pin (expansion header), it is always 3.3 Volts also if i assign in the assignment editor 1.5V, 1....
Altera_Forum
Honored Contributor
17 years agoYou shold read about i/o standards (http://www.altera.com/literature/hb/cyc2/cyc2_cii5v1_04.pdf)