Difference between revisions of "UART(ROM-5880)"
From ESS-WIKI
Xingxing.li (talk | contribs) |
Xingxing.li (talk | contribs) |
||
Line 27: | Line 27: | ||
[[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]] | ||
+ | |||
+ | === '''RS-232 Test:''' === | ||
+ | |||
+ | 1. 4-wire (Take COM1 for example). | ||
+ | <pre># /tools/test/adv/uart/rs232_4_wire_test.sh /dev/ttyS3</pre> | ||
+ | |||
+ | 2. 2-wire (Take COM4 for example). | ||
+ | <pre># /tools/test/adv/uart/rs232_2_wire_test.sh /dev/ttyS5</pre> |
Revision as of 09:13, 5 December 2023
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