SOFA/SCRIPT/openfpga_shell_script/skywater_generate_fabric_example_script.openfpga

# This script is designed to generate fabric Verilog netlists
# with a fixed device layout
# It will only output netlists to be used by backend tools,
# i.e., Synopsys ICC2, including
#   - Verilog netlists
#   - fabric hierarchy description for ICC2's hierarchical flow
#   - Timing/Design constraints
#
vpr ${VPR_ARCH_FILE} ${VPR_TESTBENCH_BLIF} --clock_modeling route --device ${OPENFPGA_VPR_DEVICE_LAYOUT} --route_chan_width ${OPENFPGA_VPR_ROUTE_CHAN_WIDTH} --absorb_buffer_luts off

# Read OpenFPGA architecture definition
read_openfpga_arch -f ${OPENFPGA_ARCH_FILE}

# Read OpenFPGA simulation settings
read_openfpga_simulation_setting -f ${OPENFPGA_SIM_SETTING_FILE}

# Annotate the OpenFPGA architecture to VPR data base
# to debug use --verbose options
link_openfpga_arch --activity_file ${ACTIVITY_FILE} --sort_gsb_chan_node_in_edges

# Build the module graph
#  - Enabled compression on routing architecture modules
#  - Enable pin duplication on grid modules
build_fabric --compress_routing #--verbose

# Write the fabric hierarchy of module graph to a file
# This is used by hierarchical PnR flows
write_fabric_hierarchy --file ${OPENFPGA_VERILOG_OUTPUT_DIR}/fabric_hierarchy.txt --depth 1

# Write the Verilog netlist for FPGA fabric
#  - Enable the use of explicit port mapping in Verilog netlist
#    which is required by Synopsys ICC2 parser
write_fabric_verilog --file ${OPENFPGA_VERILOG_OUTPUT_DIR}/SRC \
  --explicit_port_mapping \
  --verbose

# Write the SDC files for PnR backend
#  - Turn on every options here
write_pnr_sdc --file ${OPENFPGA_SDC_OUTPUT_DIR}

# Write SDC to disable timing for configure ports
write_sdc_disable_timing_configure_ports --file ${OPENFPGA_SDC_OUTPUT_DIR}/disable_configure_ports.sdc

# Finish and exit OpenFPGA
exit

# Note :
# To run verification at the end of the flow maintain source in ./SRC directory