UART_ROM-5880_
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.
| Device Node | COM Port Name |
|---|---|
| /dev/ttyS3 | COM1_RS232 4-wire_ |
| /dev/ttyS4 | COM3_RS232 4-wire_ |
| /dev/ttyS5 | COM2_RS232 2-wire_ |
| /dev/ttyS7 | COM4_RS232 2-wire_ |
HW Setting for SOM-DB2510
SW1/2：1->ON ，2->OFF
J21：2-3
RS-232 Test：
- 4-wire (Take COM1 for example).
# /tools/test/adv/uart/rs232_4_wire_test.sh /dev/ttyS3
2. 2-wire (Take COM2 for example).
# /tools/test/adv/uart/rs232_2_wire_test.sh /dev/ttyS5