1.8 KiB
Red Hat compilation
This tutorial has been tested under Red Hat 7.5
Clone the OpenFPGA git repository:
git clone https://github.com/LNIS-Projects/OpenFPGA.git
Go to the VPR directory and build the tool:
cd ./OpenFPGA/vpr7_x2p/vpr/
Note: the graphical interface might not be usable since it requires the X11 library. In this case, open the Makefile and change the line 10 "ENABLE_GRAPHICS = true" to false.
make
This will generate vpr and a libvpr.a file.
Enhancements of VPR were made. In order to see them just type:
./vpr
This will show the different options that can be used. Our modifications concern the options starting with fpga_spice and fpga_verilog.
A script is already prepared in the folder to test FPGA-SPICE:
./go.sh
This script uses the enhanced version of vpr with some new options such as --fpga_spice_print_top_testbench which automatically generates a testbench for the full FPGA and --fpga_verilog_dir which allows us to choose the destination directory for the verilog output we generate. For more informations on how the new commands work, please visit OpenFPGA Options FPGA-SPICE.
As a result, we get a new folder, /verilog_test, which contains the verilog code. The name_top.v contains the full FPGA we just created. Three other folders are created, lb, routing and sub_modules. lb contains the different CLBs used in the architecture. routing contains the different connection blocks, the switch boxes and the wires. sub_modules contains the different modules needed in the architecture.