ROM-6881 How to use UART

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UART 

User Debian/Linux UART/serial port access is through the tty-devices. The ttydevices have different names depending on UART drivers for different boards.The default value is RS232.

ROM-6881 -Device Node SOM-DB2510 device-COM Port Name
/dev/ttyS0 COM2_4的COM2(RS232 2-wire)
/dev/ttyS6 COM1_3的COM1(RS232 4-wire)
/dev/ttyS9 COM1_3的COM3(RS232 4-wire)

SOM-DB2510 UART Setting 

SOM-DB2510 SW1.PNGSOM-DB2510 SW2.PNG

Test

1.  4-wire (Take SOM-DB2510  COM1_3的COM1 for example) 

# /tools/test/adv/uart/rs232_4_wire_test.sh /dev/ttyS6

2.  2-wire (Take SOM-DB2510 COM2_4的COM2 for example) 

# /tools/test/adv/uart/rs232_2_wire_test.sh /dev/ttyS0
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