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f50d4c1ed1
nextpnr/ice40
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Sylvain Munaut f50d4c1ed1 ice40: Support for undriven / unconnected output ports 
If a port specified as output (and thus had a $nextpnr_obuf inserted)
is undriven (const `z` or const `x`), we make sure to not enable
the output driver. Also enable pull-ups if it was requested by the user.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
2023-01-29 22:35:19 +01:00
..
benchmark Fixing old emails and names in copyrights 2021-06-12 13:22:38 +01:00
carry_tests ice40: Fixing carry chain legaliser 2018-06-26 16:23:10 +02:00
examples Add deprecation warning for default packages 2019-08-08 21:35:55 +01:00
pack_tests ice40: Add a PCF parser 2018-06-13 12:30:15 +02:00
smoketest/attosoc ci: Restructure and move entirely to GH actions from Cirrus 2022-04-08 18:42:39 +01:00
.gitignore Update git ignore locations 2020-06-27 13:18:06 +02:00
arch_place.cc ice40: Add debugs to isBelLocationValid for SB_IO 2022-12-07 10:32:38 +01:00
arch_pybindings.cc Fixing old emails and names in copyrights 2021-06-12 13:22:38 +01:00
arch_pybindings.h Fixing old emails and names in copyrights 2021-06-12 13:22:38 +01:00
arch.cc refactor: ArcBounds -> BoundingBox 2022-12-07 10:00:53 +01:00
arch.h api: add explain_invalid option to isBelLocationValid 2022-12-07 10:27:58 +01:00
archdefs.h Correct Not Equal operator implementation in ice40 2022-10-17 01:19:51 -07:00
bitstream.cc ice40: Fix handling of carry out route-thru via 25,14 2022-09-26 09:33:38 +02:00
bitstream.h Fixing old emails and names in copyrights 2021-06-12 13:22:38 +01:00
cells.cc ice40: Support for undriven / unconnected output ports 2023-01-29 22:35:19 +01:00
cells.h refactor: Use IdString::in instead of || chains 2022-08-10 18:58:22 +01:00
chains.cc ice40: Avoid chain finder from mixing up chains by only allowing I3 chaining at end 2022-04-11 18:46:44 +01:00
chains.h Fixing old emails and names in copyrights 2021-06-12 13:22:38 +01:00
chipdb.py ice40: Fix wirenames containing / which is the list separator 2022-03-30 20:57:00 +01:00
CMakeLists.txt Use CMake's Python3 rather than PythonInterp in subdirs 2022-08-21 17:48:01 +01:00
constids.inc refactor: Use constids instead of id("..") 2022-02-16 17:09:54 +00:00
delay.cc archapi: Use arbitrary rather than actual placement in predictDelay 2021-12-19 17:15:15 +00:00
family.cmake Simplify and improve chipdb embedding/loading. 2020-06-26 08:36:07 +00:00
gfx.cc Fixing old emails and names in copyrights 2021-06-12 13:22:38 +01:00
gfx.h Fixing old emails and names in copyrights 2021-06-12 13:22:38 +01:00
icebreaker.pcf Fixing implementation of constants 2018-06-13 14:01:42 +02:00
icebreaker.v Fixing implementation of constants 2018-06-13 14:01:42 +02:00
icebreaker.ys ice40: Pack constants to LCs 2018-06-12 13:09:36 +02:00
main.cc refactor: Use constids instead of id("..") 2022-02-16 17:09:54 +00:00
pack.cc refactor: Use IdString::in instead of || chains 2022-08-10 18:58:22 +01:00
pcf.cc refactor: Use constids instead of id("..") 2022-02-16 17:09:54 +00:00
pcf.h Fixing old emails and names in copyrights 2021-06-12 13:22:38 +01:00
picorv32_benchmark.py timing_opt: Improve heuristics 2018-12-06 10:53:01 +00:00
picorv32_top.v Add picorv32_top module with fewer IO pins 2018-06-13 17:38:34 +02:00
picorv32.proj Fix warnings and status 2018-07-21 12:22:41 +02:00
picorv32.sh Refactoring of router1 2018-07-21 17:02:53 +02:00
tmfuzz.py Add new iCE40 delay estimator and delay predictor 2018-08-04 19:50:49 +02:00