keywords: sysgen, simulation, sim, v5
My System Generator model contains a Viterbi v6 block and when I run a simulation I am not seeing the expected results. Instead, all 0's come out of every Viterbi v6 block output.
This can occur when a Viterbi v6 block has been placed in your System Generator Core Cache by a previous install, which includes different ISE service packs and IP updates as well as System Generator versions. To resolve this issue, delete the System Generator Core Cache so that a new core will be used, generated with the current version you are running.
To refresh your System Generator Core Cache:
Locate your system Temp directory defined by your %Temp% environment variable
Remove all contents of the directory called "sg_core_cache" in your %Temp% folder
This will be resolved in System Generator for DSP 9.2.