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Altera_Forum
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13 years ago

DE1 maximum voltage and current on GPIO ports....

First of all, sorry for my bad english, but it´s not my mother language... (i speak spanish). The thing is, in the University (FRBA UTN, Electronic Engeniering) we are trying to start a few new...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

The expansion header circuit is completely described in the DE1 user manual. There's just a 47 ohm series resistor between connector and FPGA pin. With Cyclone II, PCI diodes can be enabled for part of the IO-pins (left and right banks) additionally, but they don't provide protection before user mode is started.