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Switching to nextpnr since arachne-pnr is deprecated. #28

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Switching to nextpnr since arachne-pnr is deprecated. #28

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519f49c
Switching to nextpnr since arachne-pnr is deprecated.
jrincayc Jul 6, 2020
ecbf964
Switching picosoc to nextpnr
jrincayc Jul 8, 2020
a769c3a
Adding -mabi to allow it to compile with newer gcc
jrincayc Jul 8, 2020
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10 changes: 5 additions & 5 deletions examples/picosoc/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -3,19 +3,19 @@ upload: hardware.bin firmware.bin
tinyprog -p hardware.bin -u firmware.bin


hardware.blif: hardware.v spimemio.v simpleuart.v picosoc.v picorv32.v
yosys -ql hardware.log -p 'synth_ice40 -top hardware -blif hardware.blif' $^
hardware.blif hardware.json &: hardware.v spimemio.v simpleuart.v picosoc.v picorv32.v
yosys -ql hardware.log -p 'synth_ice40 -top hardware -blif hardware.blif -json hardware.json' $^

hardware.asc: hardware.pcf hardware.blif
arachne-pnr -d 8k -P cm81 -o hardware.asc -p hardware.pcf hardware.blif
hardware.asc: hardware.pcf hardware.json
nextpnr-ice40 --lp8k --package cm81 --asc hardware.asc --pcf hardware.pcf --json hardware.json

hardware.bin: hardware.asc
icetime -d hx8k -c 12 -mtr hardware.rpt hardware.asc
icepack hardware.asc hardware.bin


firmware.elf: sections.lds start.S firmware.c
riscv32-unknown-elf-gcc -march=rv32imc -nostartfiles -Wl,-Bstatic,-T,sections.lds,--strip-debug,-Map=firmware.map,--cref -ffreestanding -nostdlib -o firmware.elf start.S firmware.c
riscv32-unknown-elf-gcc -march=rv32imc -mabi=ilp32 -nostartfiles -Wl,-Bstatic,-T,sections.lds,--strip-debug,-Map=firmware.map,--cref -ffreestanding -nostdlib -o firmware.elf start.S firmware.c

firmware.bin: firmware.elf
riscv32-unknown-elf-objcopy -O binary firmware.elf /dev/stdout > firmware.bin
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10 changes: 5 additions & 5 deletions icestorm_template/Makefile
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Expand Up @@ -21,11 +21,11 @@ DEVICE = lp8k

all: $(PROJ).rpt $(PROJ).bin

%.blif: %.v
yosys -p 'synth_ice40 -top $(PROJ) -blif $@' $<
%.blif %.json : %.v
yosys -p 'synth_ice40 -top $(PROJ) -blif $@ -json $*.json' $<

%.asc: $(PIN_DEF) %.blif
arachne-pnr -d 8k -P cm81 -o $@ -p $^
%.asc: $(PIN_DEF) %.blif %.json
nextpnr-ice40 --$(DEVICE) --package cm81 --json $*.json --asc $@ --pcf $(PIN_DEF)

%.bin: %.asc
icepack $< $@
Expand Down Expand Up @@ -56,7 +56,7 @@ sudo-prog: $(PROJ).bin
sudo tinyprog -p $<

clean:
rm -f $(PROJ).blif $(PROJ).asc $(PROJ).rpt $(PROJ).bin
rm -f $(PROJ).blif $(PROJ).asc $(PROJ).rpt $(PROJ).bin $(PROJ).json

.SECONDARY:
.PHONY: all prog clean