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Embedded Module for Blackfin Processors 14 ni.com
2. Rename the controls by double-clicking the labels and entering new
names as shown in Figure 9.
• Change one of the numeric controls to input.
• Change the other numeric control to threshold.
• Change the numeric indicator to output.
• Change the round LED to threshold exceeded?.
Tip Double-click to select a single word in a label. Triple-click to select the entire label.
Figure 9. Changing the Labels
3. Change the numeric representation of the numeric controls and the
output numeric indicator to a 32-bit signed integer by right-clicking
each control and indicator and selecting Representation»I32 from the
shortcut menu.
Creating the Block Diagram
The block diagram is the source code for a VI and contains a pictorial
description or representation of an application. Wires carry data between
the objects, or nodes, on the block diagram. The controls and indicators you
added in the Creating the Front Panel section appear as terminals on the
block diagram.
Complete the following steps to create the block diagram.
1. Switch to the block diagram by clicking the block diagram if it is
visible or selecting Window»Show Block Diagram.
Tip You also can switch to the block diagram by pressing the <Ctrl-E> keys.
2. Select Help»Show Context Help to display the Context Help
window. The Context Help window displays basic information about
LabVIEW objects when you move the cursor over each object.
Tip You also can press the <Ctrl-H> keys to open and close the Context Help window.