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Altera_Forum
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11 years ago

DE1-SoC - Change GPIO Output Voltage

Hi! Just wanted to make sure I got this right: I am using the DE1-SoC (Cyclone V FPGA). There is no way to change the output Voltage of the GPIO-Pins internally (in Quartus or by jumpers...
Altera_Forum's avatar
Altera_Forum
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11 years ago

Ok, that does not seem to be an option.

Suppose I used a SoCKit Board with this daughter card:

http://www.terasic.com.tw/cgi-bin/page/archive.pl?language=english&categoryno=67&no=322

As the SoCKit can vary the output voltage of the hsmc output pins, would that voltage be kept within the daughter card and thus be availabe on its gpio pins? I need to get 1.5 Volts to the gpio pins as a level shifter seems to delay the signals too much.