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| author | Austin Seipp <aseipp@pobox.com> | 2019-01-11 14:32:34 -0600 |
|---|---|---|
| committer | Austin Seipp <aseipp@pobox.com> | 2019-01-11 16:09:07 -0600 |
| commit | fc71cadda4310b081fb0dd08b5afdd3270e868f2 (patch) | |
| tree | bccd9e51c0e2f58066f3a77db186074761e84829 | |
| parent | 070367c88df0e89e1810ecab378acb3841675cf4 (diff) | |
| download | picorv32-fc71cadda4310b081fb0dd08b5afdd3270e868f2.tar.gz picorv32-fc71cadda4310b081fb0dd08b5afdd3270e868f2.zip | |
scripts/icestorm: switch to nextpnr-ice40
nextpnr-ice40 gives a better fMAX for this design (by about ~9Mhz for
me: ~59MHz -> ~68MHz) and is The Way Of The Future.
Signed-off-by: Austin Seipp <aseipp@pobox.com>
| -rw-r--r-- | scripts/icestorm/Makefile | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/scripts/icestorm/Makefile b/scripts/icestorm/Makefile index 7527a70..ea4efff 100644 --- a/scripts/icestorm/Makefile +++ b/scripts/icestorm/Makefile @@ -15,11 +15,11 @@ firmware.bin: firmware.elf firmware.hex: firmware.bin python3 ../../firmware/makehex.py $< 128 > $@ -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, $^) +synth.json: example.v ../../picorv32.v firmware.hex + yosys -v3 -l synth.log -p 'synth_ice40 -top top -json $@; write_verilog -attr2comment synth.v' $(filter %.v, $^) -example.asc: synth.blif example.pcf - arachne-pnr -d 8k -o $@ -p example.pcf $< +example.asc: synth.json example.pcf + nextpnr-ice40 --hx8k --package ct256 --json $< --pcf example.pcf --asc $@ example.bin: example.asc icepack $< $@ @@ -34,7 +34,7 @@ example_sim: example_tb.vvp example_sim_vcd: example_tb.vvp vvp -N $< +vcd -synth_tb.vvp: example_tb.v synth.blif +synth_tb.vvp: example_tb.v synth.json iverilog -o $@ -s testbench synth.v example_tb.v `yosys-config --datdir/ice40/cells_sim.v` chmod -x $@ @@ -65,7 +65,7 @@ view: example.vcd 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 synth.log synth.v synth.json 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 |