From 0dd850e6552a74430559ed63c3a9a67aa1c84512 Mon Sep 17 00:00:00 2001 From: David Shah Date: Wed, 26 Jun 2019 11:39:44 +0100 Subject: [PATCH] abc9: Add wire delays to synth_ice40 Signed-off-by: David Shah --- techlibs/ice40/synth_ice40.cc | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/techlibs/ice40/synth_ice40.cc b/techlibs/ice40/synth_ice40.cc index d8e9786c5..a782f00b9 100644 --- a/techlibs/ice40/synth_ice40.cc +++ b/techlibs/ice40/synth_ice40.cc @@ -331,8 +331,16 @@ struct SynthIce40Pass : public ScriptPass run("techmap -map +/gate2lut.v -D LUT_WIDTH=4", "(only if -noabc)"); } if (!noabc) { - if (abc == "abc9") - run(abc + stringf(" -lut +/ice40/abc_%s.lut -box +/ice40/abc_%s.box", device_opt.c_str(), device_opt.c_str()), "(skip if -noabc)"); + if (abc == "abc9") { + int wire_delay; + if (device_opt == "lp") + wire_delay = 400; + else if (device_opt == "u") + wire_delay = 750; + else + wire_delay = 250; + run(abc + stringf(" -W %d -lut +/ice40/abc_%s.lut -box +/ice40/abc_%s.box", wire_delay, device_opt.c_str(), device_opt.c_str()), "(skip if -noabc)"); + } else run(abc + " -dress -lut 4", "(skip if -noabc)"); }