whitequark
8c30147e39
build.plat,vendor: allow clock constraints on arbitrary signals.
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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.
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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.
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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.
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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
