From 3b2dc433adb168fc94e4fa3076154b6c4bf6c0cd Mon Sep 17 00:00:00 2001
From: uvok
Date: Thu, 25 Dec 2025 19:15:33 +0100
Subject: Use variables for device and family

---
 Makefile | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index e566393..516898f 100644
--- a/Makefile
+++ b/Makefile
@@ -6,6 +6,12 @@ MAKEFLAGS += --no-builtin-variables
 PROGRAM ?= led
 CST ?= tangnano9k.cst
 FLASH_OPTS ?=
+# https://github.com/YosysHQ/apicula/wiki/Nextpnr%E2%80%90Himbaechel-Gowin
+# but
+# https://github.com/YosysHQ/apicula/wiki/gowin_pack says something different. huh?
+DEVICE_NAME ?= GW1NR-LV9QN88PC6/I5
+DEVICE_FAMILY ?= GW1N-9C
+
 # Can't use this for deps:
 # -E $(PROGRAM).deps
 # as yosys needs to have -o specified for this to work
@@ -59,7 +65,7 @@ clean:
 # place and route?
 %.pnr.json: %.json $(CST)
 	nextpnr-himbaechel --json $< --write $@ \
-	--device GW1NR-LV9QN88PC6/I5 --vopt family=GW1N-9C \
+	--device $(DEVICE_NAME) --vopt family=$(DEVICE_FAMILY) \
 	--vopt cst=$(CST) \
 	--placed-svg $*.plc.svg \
 	--routed-svg $*.rt.svg \
@@ -67,7 +73,7 @@ clean:
 	--sdc clock.sdc \
 	|| \
 	nextpnr-gowin --json $< --write $@ \
-	--device GW1NR-LV9QN88PC6/I5 --family GW1N-9C \
+	--device $(DEVICE_NAME) --family $(DEVICE_FAMILY) \
 	--cst $(CST) \
 	--placed-svg $*.plc.svg \
 	--routed-svg $*.rt.svg \
@@ -76,7 +82,7 @@ clean:
 
 # pack bitstream
 %.fs: %.pnr.json
-	gowin_pack -d GW1N-9C -o $@ $<
+	gowin_pack -d $(DEVICE_FAMILY) -o $@ $<
 
 ## inter-file dependencies
 -include $(DEPS)
-- 
cgit v1.2.3