whitequark
07a82ed70e
build.plat: NMIGEN_<toolchain>_env→NMIGEN_ENV_<toolchain>
...
This is more consistent with other environment variables nMigen uses.
2019-09-21 12:23:53 +00:00
whitequark
91ef2f58e3
vendor.lattice_{ecp5,ice40}: allow clock constraints on arbitrary signals.
...
Fixes #88 .
2019-09-20 16:26:27 +00:00
whitequark
9ea3ff7ae2
build.plat: bypass tool detection if NMIGEN_*_env is set.
...
It's not practical to detect tools within the toolchain environment
for various reasons, so just assume the tools are there if the user
says they are.
Before this commit, the tools would be searched outside the toolchain
environment, which of course would always fail for Vivado, ISE, etc.
2019-09-12 21:56:48 +00:00
whitequark
8c30147e39
build.plat,vendor: allow clock constraints on arbitrary signals.
...
Currently only done for Synopsys based toolchains (i.e. not nextpnr).
Refs #88 .
2019-09-11 23:35:43 +00:00
Darrell Harmon
27cedf4302
vendor.lattice_ecp5: pass ecppack_opts to ecppack.
2019-09-10 03:32:36 +00:00
Emily
c4e8ac734f
_toolchain,build.plat,vendor.*: add required_tools list and checks.
2019-08-31 00:05:47 +00:00
whitequark
4e91710933
vendor.lattice_ecp5: drive GSR synchronous to user clock by default.
...
Fixes #167 .
2019-08-30 14:26:49 +00:00
whitequark
b4b5d9e2ef
vendor.lattice_ecp5: revert default toolchain to Trellis.
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This was unintentionally changed in 7fc1058e
2019-08-25 08:07:00 +00:00
whitequark
7fc1058ed2
vendor.lattice_ecp5: add Diamond support.
2019-08-22 21:36:24 +00:00
whitequark
c77274c1ad
vendor: eliminate unnecessary LUT instantiation.
...
Fixes #165 .
2019-08-22 21:29:20 +00:00
whitequark
531040d2fd
vendor: style. NFC.
2019-08-21 21:32:36 +00:00
whitequark
8854ca03ae
build.plat,vendor: automatically create sync domain from default_clk.
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But only if it is not defined by the programmer.
Closes #57 .
2019-08-03 18:36:58 +00:00
N. Engelhardt
5fd8a796ae
vendor: don't emit duplicate iobuf submodule names.
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These are no longer allowed after commit 698b005
2019-07-21 07:49:21 +00:00
whitequark
cb02a452e9
vendor.lattice_ecp5: don't leave LUT inputs disconnected.
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This causes YosysHQ/nextpnr#301.
Fixes #136 .
2019-07-07 02:34:22 +00:00
whitequark
146f3cb684
build.plat: source a script with toolchain environment.
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Fixes #131 .
2019-07-07 00:44:28 +00:00
whitequark
1ee21d2007
build.plat, vendor.*: don't join strings passed as _opts overrides.
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Right now an array is expected in any _opts overrides, and if it is
actually a string (because it is passed via an environment variable,
usually), awkwardness results as each character is joined with ` `.
Fixes #130 .
2019-07-06 23:09:46 +00:00
whitequark
33f21628bb
vendor: give names to IO buffer instances.
...
Fixes #123 .
2019-07-03 14:43:03 +00:00
Sebastien Bourdeauducq
9a1048af50
lattice_ecp5: fix get_input
2019-07-03 10:25:32 +08:00
Alain Péteut
20553b1478
build.plat: add iter_extra_files method.
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* vendor.*: employ iter_extra_files.
2019-07-02 18:25:29 +00:00
whitequark
0a145ed2d9
vendor.lattice_ecp5: implement.
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Note that because of issues with Yosys and nextpnr, it is not yet
possible to use either SDR or DDR I/O.
2019-06-25 15:48:07 +00:00
