期刊名称：International Journal of Reconfigurable Computing
印刷版ISSN：1687-7195
电子版ISSN：1687-7209
出版年度：2009
卷号：2009
DOI：10.1155/2009/703267
出版社：Hindawi Publishing Corporation
摘要：We address the
automatic synthesis of DSP algorithms using
FPGAs. Optimized fixed-point
implementations are obtained by means of considering (i) a multiple wordlength approach; (ii) a complete datapath
formed of wordlength-wise resources (i.e., functional units, multiplexers, and registers); (iii) an FPGA-wise resource
usage metric that enables an efficient distribution of logic fabric and embedded DSP resources.
The paper shows (i) the benefits of applying a multiple wordlength approach to the implementation of fixed-point
datapaths and (ii) the benefits of a wise use of embedded FPGA resources. The use of a complete fixed-point datapath
leads to improvements up to 35%. And, the wise mapping of operations to FPGA resources (logic fabric and embedded
blocks), thanks to the proposed resource usage metric, leads to improvements up to 54%.
