ST STM8/128-EVAL, User Manual

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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
065% 29Eh 0670d