UART（ROM-5880）
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Revision as of 09:13, 5 December 2023 by Xingxing.li (talk | contribs)
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 | COM4（RS232 2-wire） |
| /dev/ttyS7 | COM2（RS232 2-wire） |
HW Setting for SOM-DB2510
SW1/2：1->ON ，2->OFF
J21：2-3
RS-232 Test：
1. 4-wire (Take COM1 for example).
# /tools/test/adv/uart/rs232_4_wire_test.sh /dev/ttyS3
2. 2-wire (Take COM4 for example).
# /tools/test/adv/uart/rs232_2_wire_test.sh /dev/ttyS5