User manual

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3.15 Expansion Interfaces
3.15.1 Expansion Interface J5
Figure 18: Expansion Interface Location
J5
Pin
Signal
Function
1
VIO_3V3
+3.3V
2
VIO_3V3
+3.3V
3
UART1_TX_3V3
UART1 Transit data 3.3V level
4
UART3_TX_3V3
UART3 Transit data 3.3V level
5
UART1_RX_3V3
UART1 receive data 3.3V level
6
UART3_RX_3V3
UART3 receive data 3.3V level
7
GND
GND
8
GND
GND
9
GND
GND
10
GND
GND