説明

XAPP551 からサンプル デザインをインプリメントしていますが、次のエラー メッセージが表示されます。

ERROR:NgdBuild:604 - logical block 'u0' with type 'viterbi_v7_0' could not be
   resolved. A pin name misspelling can cause this, a missing edif or ngc file,
   case mismatch between the block name and the edif or ngc file name, or the
   misspelling of a type name. Symbol 'viterbi_v7_0' is not supported in target
   'virtex6'.

WARNING: the Core Generator generated file 'viterbi_v7_0.ngc' was not found in 'C:/p4workspace/NRRT/Xilinx Projects/Viterbi_Decoder_w_Tail_Biting/tail_biting/ipcore_dir/'.

WARNING: the Core Generator generated file 'viterbi_v7_0.ngc' was not found in 'C:/p4workspace/NRRT/Xilinx Projects/Viterbi_Decoder_w_Tail_Biting/tail_biting/ipcore_dir'.

WARNING:HDLCompiler:89 - "C:\p4workspace\NRRT\Xilinx Projects\Viterbi_Decoder_w_Tail_Biting\tail_biting\vitdec_top.vhd" Line 49: <viterbi_v7_0> remains a black-box since it has no binding entity.

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