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17
Targeting Real-Time Systems
Table 17-3: Template Makefile Tokens Expanded by make_rtw (Continued)
Token
Expansion
|>TID01EQ<|
True (1) if sampling rates of the
continuous task and the first discrete
task are equal, otherwise False (0).
|>NCSTATES<|
Number of continuous states.
|>BUILDARGS<|
Options passed to make_rtw. This token
is provided so that the contents of your
model.mk file will change when you
change the build arguments, thus
forcing an update of all modules when
your build options change.
|>EXT_MODE<|
True (1) to enable generation of
external mode support code, otherwise
False (0).
These tokens are expanded by substitution of parameter values known to the
build process. For example, if the source model contains blocks with two
different sample times, the template makefile statement
NUMST = |>NUMST<|
expands to the following in model.mk.
NUMST = 2
In addition to the above, make_rtw expands tokens from other sources:
• Target-specific tokens defined via the Target configuration section of the
Real-Time Workshop page of the Simulation Parameters dialog box.
• Structures in the RTW Options section of the system target file. Any
structures in the rtwoptions structure array that contain the field
makevariable are expanded.
The following example is extracted from matlabroot/rtw/c/grt/grt.tlc.
The section starting with BEGIN_RTW_OPTIONS contains M-file code that sets
up rtwoptions. The directive
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