Initial commit

Makefile

@@ -0,0 +1,56 @@
+SOURCES = $(wildcard source/*.sv)
+TOP = sugar_lissajous
+PCF = icesugar.pcf
+
+FAMILY = up5k
+PACKAGE = sg48
+FREQ = 30
+
+#DOSVG = --placed-svg place.svg --routed-svg route.svg
+# nextpnr --randomize-seed write_verilog $(TOP).v
+
+BUILD_DIR ?= build
+
+TOP_BIN = $(BUILD_DIR)/$(TOP).bin
+TOP_ASC = $(BUILD_DIR)/$(TOP).asc
+TOP_JSON = $(BUILD_DIR)/$(TOP).json
+
+all: $(TOP_BIN)
+
+# Make bitstream
+$(TOP_BIN): $(TOP_ASC)
+	icepack $(TOP_ASC) $(TOP_BIN)
+
+# Place and rouite
+$(TOP_ASC): $(TOP_JSON) $(PCF)
+	nextpnr-ice40 -q -l $(BUILD_DIR)/nextpnr.log --$(FAMILY) --package $(PACKAGE) \
+		--freq $(FREQ) --top $(TOP) --pcf $(PCF) --asc $(TOP_ASC) --json $(TOP_JSON) \
+		$(DOSVG)
+
+# Synthesys
+$(TOP_JSON): $(SOURCES)
+	mkdir -p $(BUILD_DIR)
+	yosys -q -l $(BUILD_DIR)/yosys.log -p \
+		"proc; alumacc; share -fast; opt -full; synth_ice40 -top $(TOP) -json $(TOP_JSON) -abc2" \
+		$(SOURCES)
+
+# Timing analysis
+timing: $(TOP_ASC)
+	icetime -d $(FAMILY) -t -c $(FREQ) -r $(BUILD_DIR)/timing.log $(TOP_ASC)
+
+# Program
+prog: $(TOP_BIN)
+	icesprog -w $(TOP_BIN)
+
+# Clean
+clean:
+	rm -rf $(BUILD_DIR)
+
+# Convert SVG to PNG
+png: route.png place.png
+
+route.png: route.svg
+	inkscape --export-type=png -o route.png -D -d 100 route.svg
+
+place.png: place.svg
+	inkscape --export-type=png -o place.png -D -d 150 place.svg