Difference between revisions of "UART（ROM-5880）"
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|- | |- | ||
| /dev/ttyS5 | | /dev/ttyS5 | ||
| − | | | + | | COM2（RS232 2-wire） |
|- | |- | ||
| /dev/ttyS7 | | /dev/ttyS7 | ||
| − | | | + | | COM4（RS232 2-wire） |
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[[File:SOM-DB2510 SW1.PNG|RTENOTITLE]][[File:SOM-DB2510 SW2.PNG|RTENOTITLE]] | [[File:SOM-DB2510 SW1.PNG|RTENOTITLE]][[File:SOM-DB2510 SW2.PNG|RTENOTITLE]] | ||
| − | [[File:SOM-DB2510 J21.png]] | + | [[File:SOM-DB2510 J21.png|RTENOTITLE]] |
=== '''RS-232 Test：''' === | === '''RS-232 Test：''' === | ||
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<pre># /tools/test/adv/uart/rs232_4_wire_test.sh /dev/ttyS3</pre> | <pre># /tools/test/adv/uart/rs232_4_wire_test.sh /dev/ttyS3</pre> | ||
| − | 2. 2-wire (Take | + | 2. 2-wire (Take COM2 for example). |
<pre># /tools/test/adv/uart/rs232_2_wire_test.sh /dev/ttyS5</pre> | <pre># /tools/test/adv/uart/rs232_2_wire_test.sh /dev/ttyS5</pre> | ||
Latest revision as of 03:29, 7 March 2024
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：
1. 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