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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

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The size of my signals do not seem to be the problem though. I have followed the guidelines that are outlined in the .pdf and I still get the same result for my output.

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Convince me - where are your Modelsim simulations of the logic?

If you have a difference between simulation and hardware, then it would point to an error in the interface to the DAC, eg., your DAC might not use signed integer format, but straight-binary (which requires inverting the MSB of the data before sending it to the DAC).

Cheers,

Dave