User`s guide

5 Real-Time Workshop 4.1 Release Notes
5-16
Upgrading from an Earlier Release
This section describes the upgrade issues involved in moving from the
Real-Time Workshop 4.0 (Release 12.0) to the Real-Time Workshop 4.1.
For information about upgrading from a release earlier than 4.0, see the
Release Notes for Release 12.
RTWInfo Property Changes
If you use the Simulink Data Object classes Simulink.Signal or
Simulink.Parameter, or have implemented classes derived from these, note
the following information concerning the
RTWInfo properties.
In Release 12.0, the
RTWInfo class had a TypeQualifier property,
corresponding to the
RTW storage type qualifier field of signal ports and
parameters.
Real-Time Workshop 4.1 now supports creation of custom storage classes,
removing the need for the
TypeQualifier property. We recommend that you
use custom storage classes when type qualification is needed. See “Custom
Storage Classes for Data Objects” on page 26-3 for further information.
By default, the
TypeQualifier property of RTWInfo objects is no longer visible
in the Simulink Data Explorer. Also, the
TypeQualifier property is no longer
written to
ObjectProperties records in the model.rtw file. For backward
compatibility, the
TypeQualifier property remains active. The property can be
set and retrieved through a direct reference. For example,
Kp.RTWInfo.TypeQualifier = 'const'
or
tq = Kp.RTWInfo.TypeQualifier
You can make the TypeQualifier property visible in the Simulink Data
Explorer for the duration of a MATLAB session. To do this, execute the
following command prior to opening the Simulink Data Explorer),
feature('RTWInfoTypeQualifier',1)
The above command also directs the Real-Time Workshop to include the
TypeQualifier property in ObjectProperties records in the model.rtw file.