| |
| read_lef digital/sky90fd.lef |
| read_verilog examples/design.v |
| link_design "top" |
| |
| initialize_floorplan \ |
| -die_area "0 0 3588 5188" \ |
| -core_area "250 250 3338 4938" \ |
| -site core12t |
| |
| make_tracks |
| |
| #################################### |
| # global connections |
| #################################### |
| add_global_connection -net {VDD} -inst_pattern {.*} -pin_pattern {^VDD$} -power |
| add_global_connection -net {VDD} -inst_pattern {.*} -pin_pattern {^VDDPE$} |
| add_global_connection -net {VDD} -inst_pattern {.*} -pin_pattern {^VDDCE$} |
| add_global_connection -net {VDD} -inst_pattern {.*} -pin_pattern {VPWR} |
| add_global_connection -net {VDD} -inst_pattern {.*} -pin_pattern {VPB} |
| add_global_connection -net {VSS} -inst_pattern {.*} -pin_pattern {^VSS$} -ground |
| add_global_connection -net {VSS} -inst_pattern {.*} -pin_pattern {^VSSE$} |
| add_global_connection -net {VSS} -inst_pattern {.*} -pin_pattern {VGND} |
| add_global_connection -net {VSS} -inst_pattern {.*} -pin_pattern {VNB} |
| global_connect |
| #################################### |
| # voltage domains |
| #################################### |
| set_voltage_domain -name {CORE} -power {VDD} -ground {VSS} |
| #################################### |
| # standard cell grid |
| #################################### |
| define_pdn_grid -name {grid} -voltage_domains {CORE} |
| |
| add_pdn_ring -grid grid -layer {M4Cu M5Cu} -widths 8.0 -spacings 5.0 -core_offset 5 |
| |
| add_pdn_stripe -grid {grid} -layer {M1Cu} -width {0.16} -pitch {7.68} -offset {0} -followpins -extend_to_core_ring |
| add_pdn_stripe -grid {grid} -layer {M4Cu} -width {8.0} -pitch {136.0} -snap_to_grid -extend_to_core_ring |
| add_pdn_stripe -grid {grid} -layer {M5Cu} -width {8.0} -pitch {136.0} -snap_to_grid -extend_to_core_ring |
| add_pdn_connect -grid {grid} -layers {M1Cu M4Cu} |
| add_pdn_connect -grid {grid} -layers {M4Cu M5Cu} |
| |
| pdn::allow_repair_channels true |
| |
| pdngen |
