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| author | David Shah <dave@ds0.me> | 2019-03-22 10:46:54 +0000 |
|---|---|---|
| committer | David Shah <dave@ds0.me> | 2019-03-22 10:46:54 +0000 |
| commit | 81a7b5d2a113960f35111a2948fcc2804251821c (patch) | |
| tree | d6cc39e5a40c9c2a1e9cc4463998d6f88bd6b5ec /README.md | |
| parent | 23f2fff1c83eed5b80421c485cf887cf2d232f73 (diff) | |
| download | nextpnr-81a7b5d2a113960f35111a2948fcc2804251821c.tar.gz nextpnr-81a7b5d2a113960f35111a2948fcc2804251821c.tar.bz2 nextpnr-81a7b5d2a113960f35111a2948fcc2804251821c.zip | |
Update README.md
Signed-off-by: David Shah <dave@ds0.me>
Diffstat (limited to 'README.md')
| -rw-r--r-- | README.md | 10 |
1 files changed, 7 insertions, 3 deletions
@@ -36,6 +36,7 @@ of the selected architecture: - Python 3.5 or later, including development libraries (`python3-dev` for Ubuntu) - on Windows make sure to install same version as supported by [vcpkg](https://github.com/Microsoft/vcpkg/blob/master/ports/python3/CONTROL) - Boost libraries (`libboost-dev libboost-filesystem-dev libboost-thread-dev libboost-program-options-dev libboost-python-dev libboost-dev` or `libboost-all-dev` for Ubuntu) +- Eigen3 (`libeigen3-dev` for Ubuntu) is required to build the analytic placer - Latest git Yosys is required to synthesise the demo design - For building on Windows with MSVC, usage of vcpkg is advised for dependency installation. - For 32 bit builds: `vcpkg install boost-filesystem boost-program-options boost-thread boost-python qt5-base` @@ -119,11 +120,11 @@ Use cmake `-D` options to specify which version of nextpnr you want to build. Use `-DARCH=...` to set the architecture. It is a semicolon separated list. Use `cmake . -DARCH=all` to build all supported architectures. -The following runs a debug build of the iCE40 architecture without GUI -and without Python support and only HX1K support: +The following runs a debug build of the iCE40 architecture without GUI, + without Python support, without the HeAP analytic placer and only HX1K support: ``` -cmake -DARCH=ice40 -DCMAKE_BUILD_TYPE=Debug -DBUILD_PYTHON=OFF -DBUILD_GUI=OFF -DICE40_HX1K_ONLY=1 . +cmake -DARCH=ice40 -DCMAKE_BUILD_TYPE=Debug -DBUILD_PYTHON=OFF -DBUILD_GUI=OFF -DBUILD_HEAP=OFF -DICE40_HX1K_ONLY=1 . make -j$(nproc) ``` @@ -134,6 +135,9 @@ cmake -DARCH=ice40 -DBUILD_PYTHON=OFF -DBUILD_GUI=OFF -DSTATIC_BUILD=ON . make -j$(nproc) ``` +The HeAP placer's solver can optionally use OpenMP for a speedup on very large designs. Enable this by passing +`-DUSE_OPENMP=yes` to cmake (compiler support may vary). + You can change the location where nextpnr will be installed (this will usually default to `/usr/local`) by using `-DCMAKE_INSTALL_PREFIX=/install/prefix`. |