Fixed-Point Blockset

The Block Dialog Box

You configure Fixed-Point Blockset blocks with a parameter dialog box. The parameter dialog box provides you with

• The name and block type at the top of the dialog box
• A brief description of the block's behavior below the title
• Zero or more editable parameter fields, check boxes, or parameter lists below the description. You specify the parameter values using valid MATLAB expressions.
• A row of four buttons labeled OK, Cancel, Help, and Apply at the bottom of the dialog box. The OK button sets the current parameter values and closes the dialog box. The Cancel button reverts all the parameter values back to their values at the time the dialog box was opened, losing any changes you made. The Help button displays the HTML-based reference information for the block. The Apply button sets the current parameter values, but does not close the dialog box.

Simulink stores the strings entered in these fields and passes them to MATLAB for evaluation when a simulation is started. If MATLAB variables are used, the simulation uses the values that exist in the workspace at the start of the simulation. These variables are not necessarily the same as when the variables are entered into the dialog box fields. If a simulation is running when a parameter is changed, MATLAB evaluates the parameter as soon as you click the OK or Apply button.

Overview of the Block Reference Pages

Common Block Features