About the development board UART interface
ConnectCore for i.MX51 Hardware Reference Manual
113
UART interface
Serial port 2, RS232, X27
The serial (UART) port 2 connector, X27, is a DB-9 male connector, which is also used as the standard
console port. This asynchronous serial port is operating in DTE mode and requires a null-modem cable
to connect to a computer serial port.
The serial port 2 interface is connected to i.MX51 UART port 2. The corresponding line driver on the
development board can be enabled or disabled using switch S7. Refer to Switches and push-buttons
for more information.
Serial port 2 pins are allocated as shown:
Pin Function Defaults to
1 NC -
2 RXD GPIO1_20
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