Datasheet

6.1.2 UART1 interface

The UART interface might be used for COM communication. You can use our USB-SERIAL-

CABLE-F for debugging via the UART1 or UART0. Note that in both cases the connectors are

named at the bottom of the board.

Depending on the revision of the board it is possible to have 1xUART1 or 1xUART0 + 1xUART1.

If having a board with 1xUART1 (board revision B, A13-OlinuXino-WIFI-DEV) the table with the

signals can be found below:

UART1

Pin # Signal Name Processor Pin #

1 3.3V -

2 SDC0_SCK 110

3 SDC0_DATA3 112

4 GND -

Consider the above table when connecting the USB-SERIAL-CABLE-F according to the wire color

code. If having A13-OLinuXino with 1xUART0 and the table with the signals can be found below:

UART0 UART1

Pin # Signal Name Processor Pin # Pin # Signal Name Processor Pin #

1 3.3V - 1 3.3V -

2 SDC0_SCK 110 2 UART1_TX 152

3 SDC0_DATA3 112 3 UART1_RX 151

4 GND - 4 GND -

Consider the above table when connecting the USB-SERIAL-CABLE-F.

Notice that UART0 data lines are multiplexed with the SD-CARD.

Notice that UART1 data lines are multiplexed with the UART pins in the UEXT connector.

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