ST STMPE2401, User Manual, Page: 13 / 22

UM0300 Running the STMPE2401 port expander demo board
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Now there are two modes operation in which GUI operates:
● Read/Scan mode
●
Write/Program mode
In addition to these two modes, there are 2 power-down options available in the GUI to put
STMPE2401 in power down modes. Again there is a RESET option available which can put
the demo back in default settings.
2.2.1 Read/Scan mode
You can enter in to the Read/Scan mode by clicking the Read/Scan button as highlighted in
the
Figure 17 .
Figure 17. Read/Scan mode
In Read/Scan mode, the key press, dedicated key press and rotator events are visible as
blinking LEDs available on the GUI. These events are recorded in the scan window which
allows observing past activity as shown in
Figure 18 .