Since May 2022, packages providing Architecture Definition assets do not include CLI
utilities/wrappers to interact with Yosys, Verilog-to-Routing, etc.
For backwards compatibility, end-users can install Python package
pip install https://github.com/chipsalliance/f4pga/archive/main.zip#subdirectory=f4pga.
Verilog To Routing Notes¶
We have to do some kind of weird things to make VPR work for real architectures, here are some tips;
VPR doesn’t have channels right or above tiles on the right most / left most edge. To get these channels, pad the left most / right most edges with EMPTY tiles.
Generally we use the
vpr/padobject for the actual
.outputBLIF definitions. These are then connected to the tile which has internal IO logic.