Demonstration applications

UM0501

10/23

Doc ID 14320 Rev 3

2.3

Help mode

Pressing SEL from the main menu enters the Help mode. The following messages are

displayed sequentially on the LCD screen with a few second delay.

Figure 5.

Help mode submenus

To exit this demo, press the joystick UP.

2.4

ADC demo 1

This mode demonstrates the ADC operation that are performed using the RV1

potentiometer on the evaluation board.

The converted value is displayed in different ways (see Figure 6).

●

On the LCD first line: in percentage of the ADC range, in hexadecimal and decimal

format

●

On the LCD second line: in a bar graph from 0% to 100% of the ADC range.

●

On the 4 LEDs: each LED represents approximately 25% of the ADC range.

If KEY is pressed, the converted value is output also on USART1 and/or USART2 interfaces

and/or a sound is played on the buzzer using the timer PWM.

Figure 6.

ADC demo 1 message

LEFT or RIGHT

to scroll menu

Press SEL to

enter sub-menu

Move UP to

exit sub-menu

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