74 lines
1.8 KiB
Markdown
74 lines
1.8 KiB
Markdown
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# `nextpnr-machxo2`
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To be filled in w/ details later.
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## Quick Start
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The following commands are known to work on a near-fresh Linux Mint system
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(thank you [securelyfitz](https://twitter.com/securelyfitz)!):
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### Prerequisites
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```
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sudo apt install cmake clang-format libboost-all-dev build-essential
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qt5-default libeigen3-dev build-essential clang bison flex libreadline-dev
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gawk tcl-dev libffi-dev git graphviz xdot pkg-config python3
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libboost-system-dev libboost-python-dev libboost-filesystem-dev zlib1g-dev
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python3-setuptools python3-serial
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```
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### Installation
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Use an empty directory to hold all the cloned repositories.
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```
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git clone git@github.com:cr1901/prjtrellis.git
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cd prjtrellis
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git checkout facade
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git submodule update --init --recursive
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cd libtrellis
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cmake -DCMAKE_INSTALL_PREFIX=/usr
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make -j 8
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sudo make install
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cd ../../
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git clone git@github.com:cr1901/yosys.git
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cd yosys/
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git checkout machxo2
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make config-gcc
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make
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sudo make install
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cd ../
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git clone git@github.com:tinyfpga/TinyFPGA-A-Programmer.git
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cd TinyFPGA-A-Programmer/
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sudo python setup.py install
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cd ../
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git clone git@github.com:cr1901/nextpnr.git
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cd nextpnr
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git checkout machxo2
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git submodule update --init --recursive
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cmake . -DARCH=machxo2 -DBUILD_GUI=OFF -DTRELLIS_INSTALL_PREFIX=/usr -DBUILD_PYTHON=OFF -DBUILD_HEAP=OFF
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make
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```
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### Demo
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If you have a [TinyFPGA Ax2](https://store.tinyfpga.com/products/tinyfpga-a2) board
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with the [TinyFPGA Programmer](https://store.tinyfpga.com/products/tinyfpga-programmer),
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the following script will build a blinky bitstream and load it onto the
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MachXO2; the gateware will flash the LED!
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```
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cd machxo2/examples/
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sh demo.sh
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```
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The `tinyfpga.v` code used in `demo.sh` is slightly modified from the
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[user's guide](https://tinyfpga.com/a-series-guide.html) to accommodate
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`(* LOC = "pin" *)` constraints.
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