UM0300
Running the STMPE2401 port expander demo board
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Figure 12.
Rotator interface
To use rotator, you have to press the 2 keys simultaneously and follow the instruction as
mentioned in the datasheet. For the first 2 events you will not see any reaction but from then
onwards you will the status on the LCD.
2.2
Running in PC GUI mode
In GUI mode, in addition to the functionalities mentioned in the above section, PC GUI is
also available. For running the GUI, the demo board must first be connected to the PC with
the USB cable and then provide the power supply to the demo.
As a result, you should find the demo board enumerated as a HID device as shown
, and then board will be ready to use, if this message does not come contact the
technical support.
Figure 13.
Enumeration result
By starting the STMPE2401 PC GUI on the PC, you will see a graphical interface
(
) for controlling the demonstration board. This PC software is used to issue
various commands and to control data transfer between the PC and the ST7 peripheral.