How to add ndms in ref_libs
Open block.tcl file
Report_ref_libs information dump in a new tcl file
Now go to icc2shell
set_ref_libs -add missed ndm file---> from block.tcl file
set_ref_libs -rebind
link_block -force
report_ref_libs
save_block
save_lib
How to resolve upf error ?
commit_upf
save_block
save_lib
How to move ESD cell with origin coordinates ?
move_objects [get_selection ] -to {7486.0965 3288.0000}
How to select all the cells which have net name VDD_1V2_IO ?
change_selection [get_cells -of_objects [get_net VDD_1V2_IO]]
Cmd for to check shorts
check_lvs -max_error 0 -checks short----->for to check shorts
How to add buffers
add_buffer -lib_cell ec0cbf000an1n20x5 -new_cell_names 01122019_cell -new_net_names 01122019_net [get_pins
lgcio_pch/giolgcpchtop/lgciopchdig/chaitanya_fix_3/clk]
For to check open nets for a specific net
check_lvs -checks open -nets {biss_bg_vref_out} -open_reporting detailed------>for to check opens of a specific net
How to load bumps
read_def -add_def_only_objects {cells nets ports} def file path
How to prepare Empty db
change_selection [get_cells *BUMP*]
remove_objects [get_selection ]
change_selection [get_shapes -of_objects -filter "layer_name==AP"]
change_selection [get_shapes -filter "layer_name==AP"]
change_selection [get_shapes -filter "layer_name==M11"]
change_selection [get_vias -filter "upper_layer_name==M11 || upper_layer_name==AP "]
remove_objects [get_selection ]
How to get def file?
Select whatever u need in tool then use below command
write_def -objects [get_selection] filename.def
How to load def?
First create empty db
Then use below command
read_def -add_def_only_objects {cells nets ports} def path
To create cell
create_cell inst_TMS_SWDIO */io_sndwire_fs_1v2_1v8_n1
move_objects [get_cell inst_1V8_SUP1V8_1 ] -to {4250.0000 0.0000}
To get cells
change_selection [get_cells -of_objects [get_nets VDD_DIG_BIS]]
sizeof_collection [get_cells]
To select all cells
lsort -u [get_attribute [get_selection ] object_class ]
Remove_cells [get_selection]
getting particular pins
get_pins par_opio/*xx*
connecting and disconnecting nets
Connect_net -net name pin name
Disconnect_net -net name pin name
cs [gp -of [gn vccvdd2_rpll_hv]]
get_nets -of_objects [gs]
How to remove terminals?
change_selection [get_terminals *]
remove_objects [get_selection]
How to take routes with tcl
Off terminal,ports,cells
First select nets
Give get selection
Then take that net names and paste in this cmnd on braces
1.change_selection [get_shapes -of_objects [get_nets netname]] then u will get that net nets
shapes
2.change_selection [get_viass -of_objects [get_nets netname ]] -add
3. lsort -u [get_attribute [get_selection ] object_class ]
4.write_routes -objects [get_selection ] -output filename
To know width of the layer
ga [get_layer m9] min_width
For to remove cells from design
Remove_cellls [get_selection]
For to select that net shapes in specific Layer
change_selection [get_shapes -of_objects [get_net VDD_1V2_IO] -filter "layer_name==M10"]
For to know cell count
sizeof_collection [get_selection]
How to drop Vias in a perticular place by using commands.
By using bound option first create bound on that area
Next by using this command u can create vias for specific nets by selecting that bound
get_attribute [get_selection ] bbox
How to remove vias from a particular location
Here I am removing m10 vias
First draw bound on the area where u required.
Next use below commands
get_attribute [get_selection ] bbox
change_selection [get_vias -within {give bbox coordinates} -filter "upper_layer_name==M11 ||
upper_layer_name==M10"]
