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build/trellis: add verilog_read -defer option to yosys script

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This commit is contained in:
Greg Davill 2020-04-27 20:10:25 +09:30
parent 96e7e6e89a
commit 642c4b3036
1 changed files with 3 additions and 0 deletions
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3
litex/build/lattice/trellis.py
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@ -49,7 +49,10 @@ def _build_lpf(named_sc, named_pc, build_name):
# Yosys/Nextpnr Helpers/Templates ------------------------------------------------------------------
_yosys_template = [
"verilog_defaults -push",
"verilog_defaults -add -defer",
"{read_files}",
"verilog_defaults -pop",
"attrmap -tocase keep -imap keep=\"true\" keep=1 -imap keep=\"false\" keep=0 -remove keep=0",
"synth_ecp5 -abc9 {nwl} -json {build_name}.json -top {build_name}",
]