From d4b65988667400ddf4201aaeae13f238b9aa6fc3 Mon Sep 17 00:00:00 2001
From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Fri, 11 Feb 2022 13:22:12 +0000
Subject: [PATCH] whoops wrong constraints file

---
 Makefile | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index c950b76..22bd160 100644
--- a/Makefile
+++ b/Makefile
@@ -161,7 +161,7 @@ ifeq ($(FPGA_TARGET), ULX3S)
 RESET_LOW=true
 CLK_INPUT=25000000
 CLK_FREQUENCY=25000000
-LPF=constraints/orange-crab.lpf
+LPF=constraints/ulx3s.lpf
 PACKAGE=CABGA381
 NEXTPNR_FLAGS=--um5g-85k --freq 25
 OPENOCD_JTAG_CONFIG=openocd/ulx3s.cfg
@@ -258,7 +258,8 @@ microwatt-verilator: microwatt.v verilator/microwatt-verilator.cpp verilator/uar
 	@cp -f obj_dir/microwatt-verilator microwatt-verilator
 
 microwatt_out.config: microwatt.json $(LPF)
-	$(NEXTPNR) --json $< --lpf $(LPF) --textcfg $@.tmp $(NEXTPNR_FLAGS) --package $(PACKAGE)
+	$(NEXTPNR) --json $< --lpf $(LPF) --lpf-allow-unconstrained \
+                    --textcfg $@.tmp $(NEXTPNR_FLAGS) --package $(PACKAGE)
 	mv -f $@.tmp $@
 
 microwatt.bit: microwatt_out.config
-- 
2.30.2