DEBIX Infinity User Manual page 70

in 1, if Pin34 (GPIO5_IO03) detects power, the message INFO: pin:131 value=1; if the
power is disconnected, the message INFO: pin:131 value=0.
4.12. Usage of UART
DEBIX Infinity has three UART serial ports, of which UART2 is used as a UART TTL 3.3V
system debug serial port.
Table 15 Pin definition of UART
Function Interface
UART
UART connection:
Take UART3 as an example, you need to short UART3_RXD and UART3_TXD of the UART
interface as shown below:
www.debix.io
Pin
9
11
13
J2
15
17
19
Polyhex Technology Company Limited
Definition
UART2_RXD
UART2_TXD
UART3_RXD
UART3_TXD
UART4_RXD
UART4_TXD
Device Node
/dev/ttymxc2
/dev/ttymxc3
70 / 79