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Altera_Forum
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12 years ago

Fixed point arithmetic not working for digital signal processing application

Hi, I am currently trying to do some simple digital signal processing using the Terasic AD/DA card attached to the Terasic DE0 board (which has a Cyclone III on board). My situation is that I a...
Altera_Forum's avatar
Altera_Forum
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12 years ago

Thank you for your feedback, Dave. I contacted Terasic and they pointed out to me that the card is using offset binary format, that is, sending the unsigned number "0" to the DAC outputs -1V while sending the unsigned number "16383" (2^14 - 1) outputs +1 V.

Thanks again,

Laurent