Re: [Discuss-gnuradio] FPGA Questions

[Matt Ettus]

Eric Blossom wrote:
> On Sat, Feb 24, 2007 at 05:13:22PM -0500, Brian Padalino wrote:
>   
> > On 2/24/07, Thibaud Hottelier <address@hidden> wrote:
> >     
> > > Hi all,
> > >
> > > I have dived into the fpga code and I have now much clearer picture of
> > > what is going on, but also much more questions :)
> > >
> > > The Tx CORDIC is disabled in the code I checked out. Why?
> > >       
> > I could be wrong, but I think the TX CORDIC is disabled due to the
> > fact that the samples being delivered over USB are already complex.
> > Any other frequency translation is done within the AD9862 transmit
> > path.
> >
> > Anyone can feel free to correct me if I am wrong.
> >     
>
> You are correct ;)
>
>   

Actually, he isn't.   The TX CORDIC is not used since the AD9862 has its 
own upconverter.  It doesn't have anything to do with whether the 
samples are real or complex.

Matt