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From: | Matt Ettus |
Subject: | Re: [Discuss-gnuradio] FPGA Questions |
Date: | Tue, 27 Feb 2007 21:28:56 -0800 |
User-agent: | Thunderbird 1.5.0.9 (X11/20070212) |
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
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