Hi,
I am trying to run EMIR analysis on a mixed-signal design. The digital part has been verified separately, so when I did LVS in preparation for QRC extraction, I included the digital block's name in the LVS black box list (calibre --> LVS options --> LVS black box). Then did R-only extraction in QRC and chose the output format to be transistor-level DSPF.
The generated DSPF netlist has two .subckt sections; first section has the format:
.subckt dig_block [list of pin/net names]
.ends dig_block
Second section has the format:
.subckt top_level [list of pin/net names]
[extraction info]
.ends
This dspf file passes the spf checker in the EMIR analysis setup. But when I run the simulation (DC), it fails with message:
Fatal error found by spectre during circuit read-in.
FATAL (DSPF-114): There is no Instance section in DSPF/SPF file, EMIR anlysis will not perform.
Can someone please advise on what the problem could be? I am using virtuoso 6.1.7.
Thank you