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Synopsys Design/FPGA Compiler: Cannot find a valid implementation for module 'xdw_comp_uns'. (SYNH-14)
Keywords: xdw_comp_uns, Design Compiler, FPGA Compiler, Virtex, designware, SYNH-14
When inferring a comparator when synthesizing with Synopsys' Design Compiler or FPGA Compiler and targetting a Virtex device, the following error may occur:
Error: Cannot find a valid implementation for module 'xdw_comp_uns'. (SYNH-14)
There is due to a problem with the Xilinx Designware component xdw_comp_uns for Virtex.
Design/FPGA Compiler will not be able to finish successfully whenever it infers that component.
At this time, there is no workaround. This will be patched in a future service pack for the 2.1i software release.
FPGA Compiler II / FPGA Express do not exhibit this problem.
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