nextpnr/machxo2/examples/README.md
gatecat 510969ab97 Create machxo2 backend (renamed from generic).
Signed-off-by: William D. Jones <thor0505@comcast.net>
2021-02-12 10:36:59 +00:00

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# MachXO2 Architecture Example
This contains a simple example of the nextpnr machxo2 API. As time goes on,
python scripts required as boilerplate will be removed.
- simple.py procedurally generates a simple FPGA architecture with IO at the edges,
logic slices in all other tiles, and interconnect only between adjacent tiles
- simple_timing.py annotates cells with timing data (this is a separate script that must be run after packing)
- write_fasm.py uses the nextpnr Python API to write a FASM file for a design
- bitstream.py uses write_fasm.py to create a FASM ("FPGA assembly") file for the place-and-routed design
- Run simple.sh to build an example design on the FPGA above