The ZDB Command Kit
The Command Kit provides 'high level' commands created by a collection of already existing ZDB database commands.
The following commands are available:
Access Design Object
Basic Access Functions
get_top_design
get_top_design ?-name?
Get the top level design. If no top level design could be found then an empty string is returned.
The following options are available:
|
Return the name of the top design. |
Example
set top [$db get_top_design]
set name [$db get_top_design -name]get_cell
get_cell ?-modbased? pin|port
Get the cell (module or primitive) of a pin or port.
The following options are available:
|
Return a module based OID. |
|
Either a pin or port OID for which the cell OID should be returned. |
Example
set cell [$db get_cell {pin TOP U1 A}]get_pins
get_pins ?-addHier? cell|inst|net|signal
Get all pins or ports from a cell/inst/net/signal without having to write a loop.
The following options are available:
|
Only valid for a given signal OID. If present then also add hierarchical ports. |
|
OID to get the pins/ports from. |
Example
set pins [$db get_pins {signal TOP CLK}]get_ports
get_ports ?-name? ?-match pattern? cell
Get all ports of the given cell (module, primitive or parasitic).
The following options are available:
|
Return the names only. |
|
Only return ports matching the given glob style pattern. |
|
Either a primitive, module or parasitic module OID for which the ports should be returned. |
Example
set ports [$db get_ports {module AND2 AND2}]get_all_bits
get_all_bits busOID
Get all bits of the given bus.
The following options are available:
|
Either a pinBus, portBus or netBus OID for which the member bits should be returned. |
Example
set bits [$db get_all_bits {portBus TOP DATA_IN}]get_attribute
get_attribute oid attrName
Get the value for an attribute at the given OID.
The following options are available:
|
Any OID type that supports attributes. |
|
Name of the requested attribute value. |
Example
set value [$db get_attribute {inst TOP U1} width]get_instances_of_cell
get_instances_of_cell cellName
Get all instances of the given cell type.
The following options are available:
|
Name of the requested cell. |
Example
set instList [$db get_instances_of_cell "AND2"]get_inst
get_inst ?-hiersep sep? path
Get the inst for a given partial flat path.
The following options are available:
|
Set hiersep different from default '/'. |
|
partial flat path name for which the inst OID should be returned. |
Example
set inst [$db get_inst "sub/U1"]get_net
get_net ?-hiersep sep? path
Get the net or netBus for a given partial flat path.
The following options are available:
|
Set hiersep different from default '/'. |
|
partial flat path name for which the net OID should be returned. |
Example
set net [$db get_net "sub/n1"]get_para_port_name
get_para_port_name ?-div d? ?-del d?
Get parasitic port name from given top port or instance pin
The following options are available:
|
Use given string instead of divider stored in db. |
|
Use given string instead of delimiter stored in db. |
Example
set name [$db get_para_port_name {pin TOP U1 A}]get_driver
get_driver ?-flat? ?-stopatfirst? ?-ignorebidir? ?-limit count? net|signal
Get the driver for a given net or signal.
The following options are available:
|
Traverse hierarchies when searching for the driver. |
|
Stop search at the first driver. |
|
Ignore bidirectional pins/ports. |
|
Stop search after 'count' pins have been visited. |
|
net or signal OID. |
Example
set driver [$db get_driver -flat {net TOP net1}]
set driver2 [$db get_driver -flat -limit 1000 {net TOP net1}]get_load
get_load ?-flat? ?-stopatfirst? ?-ignorebidir? ?-limit count? net|signal
Get the load for a given net or signal.
The following options are available:
|
Traverse hierarchies when searching for the load. |
|
Stop search at the first load. |
|
Ignore bidirectional pins/ports. |
|
Stop search after 'count' pins have been visited. |
|
net or signal OID. |
Example
set load [$db get_load -flat {net TOP net1}]
set load2 [$db get_load -flat -limit 1000 {net TOP net1}]print_oid_as_slash_path
print_oid_as_slash_path oid
Print the given oid as a slash separated name.
The following options are available:
|
The OID to print. |
Example
$db print_oid_as_slash_path {net TOP net1}print_oid_as_spef
print_oid_as_spef oid
Print the given oid as a SPEF name.
The following options are available:
|
The OID to print. |
Example
$db print_oid_as_spef {net TOP net1}