From: Raptor Engineering Development Team <support@raptorengineering.com>
Date: Wed, 30 Mar 2022 02:19:38 +0000 (-0500)
Subject: Lock NextPNR seed to 1
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=b82e9f8d1a931336d31f98f3b1b1af03338b3a9b;p=nmigen.git

Lock NextPNR seed to 1

This allows reproducible builds, and
should have nearly no downsides vs.
allowing random seeds to be generated.

Should a design fail on seed 1, this can
be extended to allow a different seed to
be passed to NextPNR via the command line.
---

diff --git a/nmigen/vendor/lattice_ecp5.py b/nmigen/vendor/lattice_ecp5.py
index e2955a2..0972d01 100644
--- a/nmigen/vendor/lattice_ecp5.py
+++ b/nmigen/vendor/lattice_ecp5.py
@@ -165,6 +165,7 @@ class LatticeECP5Platform(TemplatedPlatform):
             --speed {{platform.speed}}
             --json {{name}}.json
             --lpf {{name}}.lpf
+            --seed 1
             --textcfg {{name}}.config
         """,
         r"""