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Altera_Forum
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10 years ago

How to use ADA-GPIO card with DE1-SoC

Hi,

I'm trying to use the ada-gpio (http://www.terasic.com.tw/cgi-bin/page/archive.pl?language=english&categoryno=73&no=278&partno=1) card with the DE1-SoC (rev c).

for a start, I want to use the DAC to output some voltage according to switches on the board.

what I had already done:

  1. assign switches sw
  2. assign gpio1

from this point i got lost - what should I connect to the ADA card?

what I tried is:

  1. connect VCC an GND from the board to the card

  2. connect gpio pins to DAC_WRTA

  3. select the Oscillator mode on the card

  4. turn on some switches , and measure the voltage on the DA-A Channel - It's always 0v.

What should I do to set up the ADA card properly?

Thanks,

Avi.

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