73 lines
3.7 KiB
Markdown
73 lines
3.7 KiB
Markdown
nextpnr -- a portable FPGA place and route tool
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===============================================
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Supported Architectures
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-----------------------
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- iCE40
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Prequisites
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-----------
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- CMake 3.3 or later
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- Modern C++11 compiler (`clang-format` required for development)
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- Qt5 or later (`qt5-default` for Ubuntu 16.04)
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- Python 3.5 or later, including development libraries (`python3-dev` for Ubuntu)
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- Boost libraries (`libboost-dev` or `libboost-all-dev` for Ubuntu)
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- Icestorm, with chipdbs installed in `/usr/local/share/icebox`
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- Latest git Yosys is required to synthesise the demo design
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- For building on Windows with MSVC, usage of vcpkg is advised for dependency installation.
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- For 32 bit builds: `vcpkg install boost-filesystem boost-program-options boost-thread boost-python qt5-base`
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- For 64 bit builds: `vcpkg install boost-filesystem:x64-windows boost-program-options:x64-windows boost-thread:x64-windows boost-python:x64-windows qt5-base:x64-windows`
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- For building on macOS, brew utility is needed.
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- Install all needed packages `brew install cmake python boost boost-python3 qt5`
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- Do not forget to add qt5 in path as well `echo 'export PATH="/usr/local/opt/qt/bin:$PATH"' >> ~/.bash_profile`
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Building
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--------
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- Use CMake to generate the Makefiles (only needs to be done when `CMakeLists.txt` changes)
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- For a debug build, run `cmake -DCMAKE_BUILD_TYPE=Debug .`
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- For a debug build with HX1K support only, run ` cmake -DCMAKE_BUILD_TYPE=Debug -DICE40_HX1K_ONLY=1 .`
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- For a release build, run `cmake .`
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- Add `-DCMAKE_INSTALL_PREFIX=/your/install/prefix` to use a different install prefix to the default `/usr/local`
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- For MSVC build with vcpkg use `cmake . -DCMAKE_TOOLCHAIN_FILE=C:/vcpkg/scripts/buildsystems/vcpkg.cmake` using your vcpkg location
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- For MSVC x64 build adding `-G"Visual Studio 14 2015 Win64"` is needed.
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- Use Make to run the build itself
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- For all binary targets, just run `make`
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- For just the iCE40 CLI&GUI binary, run `make nextpnr-ice40`
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- To build binary without Python support, run `cmake -DBUILD_PYTHON=OFF .`
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- To build binary without GUI, run `cmake -DBUILD_GUI=OFF .`
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- For minimal binary without Python and GUI, run `cmake -DBUILD_PYTHON=OFF -DBUILD_GUI=OFF .`
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- For just the iCE40 Python module, run `make nextpnrpy_ice40`
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- Using too many parallel jobs may lead to out-of-memory issues due to the significant memory needed to build the chipdbs
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- To install nextpnr, run `make install`
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Testing
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-------
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- To build test binaries as well, run `cmake -DBUILD_TESTS=OFF .` and after run `make tests` to run them, or you can run separate binaries.
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- To use code sanitizers use:
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- `cmake . -DSANITIZE_ADDRESS=ON`
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- `cmake . -DSANITIZE_MEMORY=ON -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++`
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- `cmake . -DSANITIZE_THREAD=ON`
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- `cmake . -DSANITIZE_UNDEFINED=ON`
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- Running valgrind example `valgrind --leak-check=yes --tool=memcheck ./nextpnr-ice40 --json ice40/blinky.json`
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Running
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--------
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- To run the CLI binary, just run `./nextpnr-ice40` (you should see command line help)
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- To start the UI, run `./nextpnr-ice40 --gui`
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- The Python module is called `nextpnrpy_ice40.so`. To test it, run `PYTHONPATH=. python3 python/python_mod_test.py`
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- Run `yosys blinky.ys` in `ice40/` to synthesise the blinky design and
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produce `blinky.json`.
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- To place-and-route the blinky using nextpnr, run `./nextpnr-ice40 --hx1k --json ice40/blinky.json --pcf ice40/blinky.pcf --asc blinky.asc`
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Notes
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-------
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- All code is formatted using `clang-format` according to the style rules in `.clang-format` (LLVM based with
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increased indent widths and brace wraps after classes).
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- To automatically format all source code, run `make clangformat`.
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