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Showing results for tags 'fft ip core'.
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Hello sir, I have implemented FFT of sine wave using "FFT IP core". It gives me exact frequency of the input. But when i tried to implement IFFT of that output using "FFT IP core with configuration value 8000H", output is not again sine wave in time domain. Could you please help me to sort this out? Thanks and regards
Dear sir, I am using xilinx FFT 9.0 IP core in Vivado 15.2 for my application, I am computing 512 point IFFT with cyclic prefix using this IP core but output is not coming correctly. Although most of the output samples are correct but some samples are changing drastically. I am using this IP core in real time mode and giving 512 complex symbol at the input of core on every clock after s_axis_data_tvalid and s_axis_data_tready becomes high. Earlier I have used xilinx FFT 7.1 IP core in ISE14.6 which working fine with same settings and same input data. Kindly help me to debug this IP core