AR# 11773: LogiCORE Viterbi Decoder v1.0 - Core Generator 3.1i Viterbi Decoder core fails to generate for large constraint lengths
AR# 11773
LogiCORE Viterbi Decoder v1.0 - Core Generator 3.1i Viterbi Decoder core fails to generate for large constraint lengths
描述
Keywords: FEC, decoder, forward error correction
For large Viterbi cores constraint length 9, Core Generator may fail and not generate the core do to memory issues.
解决方案
For large Viterbi cores constraint length 9 the mx command needs to be increased from the current setting of 1024 to 2047
e.g. $JAVA_HOME/bin/jre" -mx2047m -ss4M -DLDLIBPATH="$LD_LIBRARY_PATH" -classpath "$CLASSPATH" com.xilinx.encore.coregen.main.Coregen -c $COREGEN -p /home/beth/CoregenRun -b large.xco or refer to (Xilinx Solution 9244) for more information on changing the coregen.bat file.
Please See (Xilinx Answer 29448) for a detailed list of LogiCORE Viterbi Decoder Release Notes and Known Issues.