Installation instructions for nextpnr with ECP5 support

Setting up new debootstrap and chroot into it

Run the following if you wish to isolate the nextpnr-ecp5 build from other software (reproducible builds) or use the schroot auto-preparation script here:;a=blob;f=mk-deb-chroot;hb=HEAD

export MY_CHROOT=/stable-chroot
mkdir $MY_CHROOT
debootstrap stable $MY_CHROOT
mount -t proc proc $MY_CHROOT/proc
mount -t sysfs sysfs $MY_CHROOT/sys
mount -t devpts devpts $MY_CHROOT/dev/pts/
chroot $MY_CHROOT /bin/bash

Steps to compile Project Trellis

Necessary software to install

apt-get install git
apt-get install python3 python3-dev clang cmake libboost-dev \
                libboost-filesystem-dev libboost-thread-dev \
                libboost-program-options-dev libboost-iostreams-dev \
git clone --recursive

Build Project Trellis

cd prjtrellis
cd libtrellis
cmake -DCMAKE_INSTALL_PREFIX=/usr/local/libtrellis .
make install

Steps to compile Project Nextpnr with ECP5

Necessary software to install

apt-get install libeigen3-dev
git clone --recursive

Build Project nextpnr-ecp5

cd nextpnr
cmake -DCMAKE_INSTALL_PREFIX=/usr/local/nextpnr-ecp5 \
      -DARCH=ecp5 -D TRELLIS_INSTALL_PREFIX=/usr/local/libtrellis .
make install

Please adjust the install paths for nextpnr and previous prjtrellis.