Objects have properties that can be queried. Property names are unique for any given
object type. To query a specific property for an object, the following command is
provided:
-
get_property <property_name> <object>
For example, the lib_cell property on cell objects tells you what UniSim component a
given instance is mapped to:
-
get_property lib_cell [get_cell inst_1]
To discover all of the available properties for a given object type, use the
report_property command:-
report_property [get_cells inst_1]
| Key | Value | Type |
|---|---|---|
| bel | OLOGICE1.OUTFF | string |
| class | cell | string |
| iob | TRUE | string |
| is_blackbox | 0 | bool |
| is_fixed | 0 | bool |
| is_partition | 0 | bool |
| is_primitive | 1 | bool |
| is_reconfigurable | 0 | bool |
| is_sequential | 1 | bool |
| lib_cell | FD | string |
| loc | OLOGIC_X1Y27 | string |
| name | error | string |
| primitive_group | FD_LD | string |
| primitive_subgroup | flop | string |
| site | OLOGIC_X1Y27 | string |
| type | FD & LD | string |
| XSTLIB | 1 | bool |
Some properties are read-only and some are user-settable. Properties that map to
attributes that can be annotated in UCF or in HDL are generally user-settable through
Tcl with the
set_property command:-
set_property loc OLOGIC_X1Y27 [get_cell inst_1]