nextpnr portable FPGA place and route tool
f32b9622d5
This commit also includes changes to jsonparse to allow it to 1) recognize ports with no connection, and set their net pointers to NULL 2) recognize designs with a ports node rather than a ports_direction The rule checker has also been modified to accommodate possible NULL netlists The ice40 chip now also has iterator operations ++bi and bi++. |
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|---|---|---|
| common | ||
| dummy | ||
| frontend/json | ||
| gui | ||
| ice40 | ||
| python | ||
| .clang-format | ||
| .gitignore | ||
| CMakeLists.txt | ||
| README.md | ||
nextpnr -- a portable FPGA place and route tool
Supported Architectures
- iCE40
Prequisites
- CMake 3.3 or later
- Modern C++11 compiler, clang recommended
- Qt5 or later (
qt5-defaultfor Ubuntu 16.04) - Python 3.5 or later, including development libraries (
python3-devfor Ubuntu) - Boost libraries (
libboost-devorlibboost-all-devfor Ubuntu) - Icestorm, with chipdbs installed in
/usr/local/share/icebox
Building
- Use CMake to generate the Makefiles (only needs to be done when
CMakeLists.txtchanges)- For a debug build, run
cmake -DCMAKE_BUILD_TYPE=Debug . - For a debug build with HX1K support only, run
cmake -DCMAKE_BUILD_TYPE=Debug -DICE40_HX1K_ONLY=1 . - For a release build, run
cmake .
- For a debug build, run
- Use Make to run the build itself
- For all targets, just run
make - For just the iCE40 CLI binary, run
make nextpnr-ice40 - For just the iCE40 Python module, run
make nextpnrpy_ice40 - Using too many parallel jobs may lead to out-of-memory issues due to the significant memory needed to build the chipdbs
- For all targets, just run
Running
- To run the CLI binary, just run
./nextpnr-ice40 - The Python module is called
nextpnrpy_ice40.so. To test it, runPYTHONPATH=. python3 python/python_test.py