BSP Developer's Guide

6
Components
Parameters
Parameters are one of the user’s primary means of configuring a system. Typically,
one or more parameters control a component’s features. As an example, we can
consider the maximum number of log messages in the logging queue. In Tornado
1.0.1, this was in target/config/configAll.h as:
#define MAX_LOG_MSGS 50
For Tornado 2.x, use the parameter object class to describe those parameters listed
by a particular component’s CFG_PARAMS property. The logging example is as
follows:
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Parameter MAX_LOG_MSGS {
NAME max # queued messages
TYPE uint
DEFAULT 50
}
The following properties describe a parameter:
NAME
A readable name, the one that appears below the list of parameter IDs in the
Params tab of the project facility’s Properties window, as shown in Figure 6-3.
Figure 6-3
The Properties Window
TYPE
The type of parameter, that is, int, uint, bool, string, exists, or untyped.
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