Hi, I look at the FFT core description of Xilinx and I do not understand the function of switch in the diagram. There are two switches in the FFT LogiCore diagram, at the both sides of Buttfly. One switch connects the output of RAM block, which the other switch connects to the RAM input. I think the data input and output of RAM can directly connect to the butterfly, because the different RAM contents are controlled by addresses. What use for the switches? Can you help me about that? Thank you very much.
What the switch of FFT implementation in FPGA for
Started by ●June 10, 2009
Reply by ●June 10, 20092009-06-10
On Jun 10, 2:26=A0pm, fl <rxjw...@gmail.com> wrote:> Hi, > I look at the FFT core description of Xilinx and I do not understand > the function of switch in the diagram. There are two switches in the > FFT LogiCore diagram, at the both sides of Buttfly. One switch > connects the output of RAM block, which the other switch connects to > the RAM input. I think the data input and output of RAM can directly > connect to the butterfly, because the different RAM contents are > controlled by addresses. What use for the switches? Can you help me > about that? Thank you very much.Hi, Please list the Xilinx website address for what your FFT core description and I may help you. Weng
