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) |
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