Andrew Beckett
Senior Fellow
Offline
Life, don't talk to me about Life...
Posts: 1742
Bracknell, UK
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I'm guessing that this might be due to the combination of tool versions you're using. There's no maximum time in the waveform tool, but there are some limits to file size.
In earlier spectre versions (prior to MMSIM61) transient simulation data was broken up into 2Gbyte chunks, and then this could be read in IC5141.
In newer (MMSIM61 and later) spectre supports large results files - more than 2G. These can be read directly in IC61, but not in IC5141.
If using IC5141 with MMSIM61 or later, you need to set some environment variables to tell spectre (or Ultrasim) to use the older "chunk" mode:
For Spectre writing PSF data:
setenv PSF_WRITE_CHUNK_MODE_ON true
For UltraSim writing PSF data:
setenv PSF_LARGE_FILE_ON false
But I am guessing to some extent, because I don't know what tool versions you're using, or which output format (SST2 or PSF), for example.
Regards,
Andrew.
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