Technical data

vsim
CR-214 ModelSim Commands ModelSim EE/SE Command Reference
-g<Name=Value> ...
Note there is no space between -g and <Name=Value>. Specifies a value for all
generics in the design with the given name that have not received explicit values
in generic maps (such as top-level generics and generics that would otherwise
receive their default value). Optional.
Name is the name of the generic parameter, exactly as it appears in the VHDL
source (case is ignored). Value is an appropriate value for the declared data type
of the generic parameter.
Make sure the Value you specify is appropriate for the declared data type. Type
mismatches will cause the specification to be ignored (including no error
messages).
No spaces are allowed anywhere in the specification, except within quotes when
specifying a string value. Multiple -g options are allowed, one for each generic
parameter.
Name may be prefixed with a relative or absolute hierarchical path to select
generics in an instance-specific manner. For example,
Specifying
-g/top/u1/tpd=20ns on the command line would only affect the
tpd generic on the /top/u1 instance, assigning it a value of 20ns.
Specifying
-gu1/tpd=20ns affects the tpd generic on all instances named u1.
Specifying
-gtpd=20ns affects all generics named tpd.
If more than one -g option selects a given generic the most explicit specification
takes precedence. For example,
vsim -g/top/ram/u1/tpd_hl=10ns -gtpd_hl=15ns top
This command sets tpd_hl to 10ns for the /top/ram/u1 instance. However, all other
tpd_hl generics on other instances will be set to 15ns.
Limitation: Composite typed generics (arrays and records) may not be set from the
command line. Generics of string type may be set, however. For example,
-gstrgen=’"This is a string"’
-G<Name=Value> ...
Note there is no space between -G and <Name=Value>. Same as -g except that it
will also override generics that received explicit values in generic maps. Optional.
Name is the name of the generic parameter, exactly as it appears in the VHDL
source (case is ignored). Value is an appropriate value for the declared data type
of the generic parameter.