Automatic Generation and Modeling of Customized Discrete Fourier Transform IP Cores

This report presents an equation-based resource utilization model for automatically generated discrete Fourier transform (DFT) soft core IPs. The parameterized DFT IP generator allows a user to make customized tradeoffs between cost and performance and between utilization of different resource classes. The equation-based resource model permits immediate and accurate estimation of resource require~nents as the user considers the different generator options ̄ Furthermore, the fast turnaround of the model allows it to be combined with a search algorithm such that the user could query automatically for an optimal design within the stated performance and resource constraints. Following a brief review of the DFT IP generator, this report presents the development of the equation-based models for estimating slice and hard macro utilizations in the Xilinx Virtex-II Pro FPGA family. The evaluation section shows that an average error of 6.1% is achievable by a ~nodel of linear equations that can be evaluated in sub-microseconds. The report fl~rther offers a demonstration of the automatic design exploration capability.