ST STMPE2401, Руководство пользователя, Страница: 7 / 22

UM0300 Getting started
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1.4 Hardware installation
Figure 6 below shows the snapshot of the demonstration board.
Figure 6. Port expander demo board
1.4.1 Power supply
The demo board can directly be powered by the USB Connector (Bus powered).
Or you can use an external power supply. The external power supply should be getting
minimum supply of 7 V, 1 A and maximum power supply of 12 V, 1 A.
1.4.2 Jumper settings
There are four jumpers (JP1, JP2, JP3, and JP4) are available on the board. The correct
connections of these connectors are necessary for the proper functioning of the demo
board.
●
JP1 and JP2: JP1 and JP2 are the connectors which are used to select between the
I
2
C lines and ICC lines (for programming the ST7 microcontroller) as shown in the
Figure 7 below.
Figure 7. JP1 and JP2 Settings