Using the front panel evaluation board

UM0460

14/23

3.5

MENU

The system has been provided with a MENU key to select one of the various display options

supported by the device STLED316S. The four different display options supported by the

system are explained in the following subsections.

3.5.1

Constant display - constant BAR

On pressing the MENU key once, the first MENU option is displayed. In this option all the 6-

digit LED displays (DIG2 - DIG7) and all the bars of the DIG1_LED have the same constant

brightness level which is 14/16.

On the LED display "888881" appears which indicates that the first MENU option is

displayed as shown in Figure 12.

Figure 12.

First menu option - "888881"

To select this display option for the system, the 'OK' key should be pressed.

3.5.2

Variable display - constant BAR

On pressing the MENU key twice, the second MENU option is displayed. In this option all

the 6-digit LED displays have different brightness levels and the different bars of the

DIG1_LED have the same constant brightness level which is 14/16.

Digit LED displays (DIG2 - DIG7) have different brightness levels 1/16, 13/16, 2/16, 11/16,

4/16 and 1/6 respectively.

On the LED display "888882" appears which indicates that the second MENU option is

displayed as shown in Figure 13.

Figure 13.

Second menu option - "888882"

To select this display option for the system, the 'OK' key should be pressed.