feat: publish FreeRTOS C FC08 card

2026-07-19 16:36:03 +02:00
commit 2e82515c3b
199 changed files with 59703 additions and 0 deletions
@@ -0,0 +1,80 @@
+YOSYS=yosys
+NEXTPNR=nextpnr-ice40
+CHIPNAME?=chip
+DEVICE?=hx8k
+PACKAGE?=bg121
+
+DEFINES+=FPGA FPGA_ICE40
+
+PRE_SYNTH_CMD?=
+SYNTH_OPT?=
+PNR_OPT?=
+
+SYNTH_CMD=read_verilog $(addprefix -I,$(INCDIRS)) $(addprefix -D,$(DEFINES)) $(SRCS);
+ifneq (,$(TOP))
+	SYNTH_CMD+=hierarchy -top $(TOP);
+endif
+SYNTH_CMD+=$(PRE_SYNTH_CMD)
+SYNTH_CMD+=synth_ice40 $(SYNTH_OPT); write_json $(CHIPNAME).json
+
+# Kill implicit rules
+.SUFFIXES:
+.IMPLICIT:
+
+.PHONY: all romfiles synth clean program dump
+
+all: bit
+
+romfiles::
+synth: romfiles $(CHIPNAME).json
+dump: romfiles
+pnr: synth $(CHIPNAME).asc
+bit: pnr $(CHIPNAME).bin
+
+SRCS=$(shell PROJ_ROOT=$(PROJ_ROOT) HDL=$(HDL) $(SCRIPTS)/listfiles --relative -f flat $(DOTF))
+INCDIRS=$(shell PROJ_ROOT=$(PROJ_ROOT) HDL=$(HDL) $(SCRIPTS)/listfiles --relative -f flati $(DOTF))
+
+dump:
+	$(YOSYS) -p "$(SYNTH_CMD); write_verilog $(CHIPNAME)_synth.v"
+
+$(CHIPNAME).json: $(SRCS)
+	@echo ">>> Synth"
+	@echo
+	$(YOSYS) -p "$(SYNTH_CMD)" > synth.log
+	tail -n 35 synth.log
+
+
+$(CHIPNAME).asc: $(CHIPNAME).json $(CHIPNAME).pcf
+	@echo ">>> Place and Route"
+	@echo
+	$(NEXTPNR) -r --$(DEVICE) --package $(PACKAGE) --pcf $(CHIPNAME).pcf --json $(CHIPNAME).json --asc $(CHIPNAME).asc $(PNR_OPT) --quiet --log pnr.log
+	@grep "Info: Max frequency for clock " pnr.log | tail -n 1
+
+$(CHIPNAME).bin: $(CHIPNAME).asc
+	@echo ">>> Generate Bitstream"
+	@echo
+	icepack -s $(CHIPNAME).asc $(CHIPNAME).bin
+
+clean::
+	rm -f $(CHIPNAME).json $(CHIPNAME).asc $(CHIPNAME).bin $(CHIPNAME)_synth.v
+	rm -f synth.log pnr.log
+
+# Code for trying n different pnr seeds and reporting results
+
+PNR_N_TRIES := 100
+PNR_TRY_LIST := $(shell seq $(PNR_N_TRIES))
+
+pnr_sweep: $(addprefix pnr_try,$(PNR_TRY_LIST))
+
+define make-sweep-target
+pnr_try$1: synth
+	@echo ">>> Starting sweep $1"
+	-$(NEXTPNR) --seed $1 --$(DEVICE) --package $(PACKAGE) --pcf $(CHIPNAME).pcf --json $(CHIPNAME).json --asc pnr_try$1.asc $(PNR_OPT) --quiet --log pnr$1.log
+	@grep "Info: Max frequency for clock " pnr$1.log | tail -n 1
+endef
+
+$(foreach try,$(PNR_TRY_LIST),$(eval $(call make-sweep-target,$(try))))
+
+clean::
+	rm -f pnr_try*.asc pnr*.log
+