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Signed-off-by: David Shah <davey1576@gmail.com>
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David Shah 2018-06-13 13:14:51 +02:00
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README.md
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nextpnr -- a portable FPGA place and route tool
===============================================
Supported Architectures
-----------------------
@ -30,11 +27,13 @@ Building
- 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 .`
- Add `-DCMAKE_INSTALL_PREFIX=/your/install/prefix` to use a different install prefix to the default `/usr/local`
- 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
- To install nextpnr, run `make install`
Running
--------
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- The Python module is called `nextpnrpy_ice40.so`. To test it, run `PYTHONPATH=. python3 python/python_mod_test.py`
- Run `yosys blinky.ys` in `ice40/` to synthesise the blinky design and
produce `blinky.json`.
- To place-and-route the blinky using nextpnr, run `./nextpnr-ice40 --hx1k --json ice40/blinky.json --asc blinky.asc`
- To place-and-route the blinky using nextpnr, run `./nextpnr-ice40 --hx1k --json ice40/blinky.json --pcf ice40/blinky.pcf --asc blinky.asc`
Notes
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