# Run VPR for the 'and' design
# When the global clock is defined as a port of a tile, clock routing in VPR should be skipped
# This is due to the Fc_in of clock port is set to 0 for global wiring
# The constant net such as logic '0' and logic '1' must be routed because current architecture cannot produce them locally
vpr ${VPR_ARCH_FILE} ${VPR_TESTBENCH_BLIF} --route_chan_width ${VPR_ROUTE_CHAN_WIDTH} --constant_net_method route --skip_sync_clustering_and_routing_results on

# 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
# Note: no need to assign activity file when you used a fixed number 
#       of clock cycles in simulation settings
#       Also, ACE2 does not support multiple clocks
#       Therefore, activity file is not recommended for multi-clock fabric/implementations
link_openfpga_arch --sort_gsb_chan_node_in_edges

# Check and correct any naming conflicts in the BLIF netlist
check_netlist_naming_conflict --fix --report ./netlist_renaming.xml

# Apply fix-up to clustering nets based on routing results
pb_pin_fixup #--verbose

# Apply fix-up to Look-Up Table truth tables based on packing results
lut_truth_table_fixup

# Build the module graph
#  - Enabled compression on routing architecture modules
#  - Enabled frame view creation to save runtime and memory
#    Note that this is turned on when bitstream generation 
#    is the ONLY purpose of the flow!!!
build_fabric --compress_routing --frame_view #--verbose

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

# Repack the netlist to physical pbs
# This must be done before bitstream generator and testbench generation
# Strongly recommend it is done after all the fix-up have been applied
repack #--verbose

# Build the bitstream
#  - Output the fabric-independent bitstream to a file
# # Skipped becasue it takes long time to run for bigger fabric
# --write_file fabric_independent_bitstream.xml
build_architecture_bitstream --verbose 

# Build fabric-dependent bitstream
build_fabric_bitstream --verbose

# Write fabric-dependent bitstream
write_fabric_bitstream --file fabric_bitstream.xml --format xml

# Finish and exit OpenFPGA
exit

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