TOOLCHAIN_PREFIX = riscv32-unknown-elf- all: example.bin firmware.elf: firmware.S firmware.c firmware.lds $(TOOLCHAIN_PREFIX)gcc -Os -ffreestanding -nostdlib -o firmware.elf firmware.S firmware.c \ --std=gnu99 -Wl,-Bstatic,-T,firmware.lds,-Map,firmware.map,--strip-debug -lgcc chmod -x firmware.elf firmware.bin: firmware.elf $(TOOLCHAIN_PREFIX)objcopy -O binary firmware.elf firmware.bin chmod -x firmware.bin firmware.hex: firmware.bin python3 ../../firmware/makehex.py firmware.bin 128 > firmware.hex synth.blif: example.v ../../picorv32.v firmware.hex yosys -v3 -l synth.log -p 'synth_ice40 -top top -blif $@; write_verilog -attr2comment synth.v' $(filter %.v, $^) example.asc: synth.blif arachne-pnr -d 8k -o example.asc -p example.pcf synth.blif example.bin: example.asc icepack example.asc example.bin example_tb.vvp: example_tb.v example.v firmware.hex iverilog -o example_tb.vvp -s testbench example.v example_tb.v ../../picorv32.v chmod -x example_tb.vvp example_sim: example_tb.vvp vvp -N example_tb.vvp example_sim_vcd: example_tb.vvp vvp -N example_tb.vvp +vcd synth_tb.vvp: example_tb.v synth.blif iverilog -o synth_tb.vvp -s testbench synth.v example_tb.v /usr/local/share/yosys/ice40/cells_sim.v chmod -x synth_tb.vvp synth_sim: synth_tb.vvp vvp -N synth_tb.vvp synth_sim_vcd: synth_tb.vvp vvp -N synth_tb.vvp +vcd route.v: example.asc icebox_vlog -L -n top -sp example.pcf example.asc > route.v route_tb.vvp: example_tb.v route.v iverilog -o route_tb.vvp -s testbench route.v example_tb.v /usr/local/share/yosys/ice40/cells_sim.v chmod -x route_tb.vvp route_sim: route_tb.vvp vvp -N route_tb.vvp route_sim_vcd: route_tb.vvp vvp -N route_tb.vvp +vcd prog_sram: iceprog -S example.bin view: gtkwave example.vcd example.gtkw clean: rm -f firmware.elf firmware.map firmware.bin firmware.hex rm -f synth.log synth.v synth.blif route.v example.asc example.bin rm -f example_tb.vvp synth_tb.vvp route_tb.vvp example.vcd .PHONY: all prog_sram view clean .PHONY: example_sim synth_sim route_sim .PHONY: example_sim_vcd synth_sim_vcd route_sim_vcd