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Clarify ICEBOX_ROOT parameter

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Signed-off-by: David Shah <davey1576@gmail.com>
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David Shah 2018-12-21 14:37:27 +00:00
parent b22e524dac
commit 8f5d5003e9
1 changed files with 3 additions and 2 deletions
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README.md
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@ -49,8 +49,9 @@ Getting started
### nextpnr-ice40 ### nextpnr-ice40
To build the iCE40 version of nextpnr, install [icestorm](http://www.clifford.at/icestorm/) with chipdbs installed in `/usr/local/share/icebox` To build the iCE40 version of nextpnr, install [icestorm](http://www.clifford.at/icestorm/) with chipdbs installed in `/usr/local/share/icebox`,
(or another location, which should be passed as -DICEBOX_ROOT=/path/to/icebox to CMake). or another location, which should be passed as `-DICEBOX_ROOT=/path/to/share/icebox` (ensure to point it to `share/icebox` and not where the
icebox binaries are installed) to CMake.
Then build and install `nextpnr-ice40` using the following commands: Then build and install `nextpnr-ice40` using the following commands:
``` ```