linux串口命令

最新推荐文章于 2025-06-25 14:58:49 发布

转载最新推荐文章于 2025-06-25 14:58:49 发布 · 2.6k 阅读

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#串口 #串口命令 #statserial #stty

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本文介绍了Linux系统中串口的配置详情，包括通过proc文件系统查看串口驱动信息、使用statserial命令获取设备状态及stty命令设置串口参数等。对于嵌入式系统开发者和Linux爱好者来说，这些信息有助于更好地理解和控制串口通信。

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proc

# cat /proc/tty/driver/serial 
serinfo:1.0 driver revision:
0: uart:16550A port:000003F8 irq:4 tx:103686 rx:76876 RTS|CTS|DTR|DSR|CD
1: uart:unknown port:000002F8 irq:3
2: uart:unknown port:000003E8 irq:4
3: uart:unknown port:000002E8 irq:3
4: uart:unknown port:00000000 irq:0
5: uart:unknown port:00000000 irq:0

statserial

# statserial /dev/ttyS0
Device: /dev/ttyS0

Signal  Pin  Pin  Direction  Status  Full
Name    (25) (9)  (computer)         Name
-----   ---  ---  ---------  ------  -----
FG       1    -      -           -   Frame Ground
TxD      2    3      out         -   Transmit Data
RxD      3    2      in          -   Receive  Data
RTS      4    7      out         1   Request To Send
CTS      5    8      in          1   Clear To Send
DSR      6    6      in          1   Data Set Ready
GND      7    5      -           -   Signal Ground
DCD      8    1      in          1   Data Carrier Detect
DTR     20    4      out         1   Data Terminal Ready
RI      22    9      in          0   Ring Indicator

stty

# stty -F /dev/ttyS0 -a 
speed 115200 baud; rows 0; columns 0; line = 0;
intr = <undef>; quit = <undef>; erase = <undef>; kill = <undef>; eof = <undef>; eol = <undef>;
eol2 = <undef>; swtch = <undef>; start = <undef>; stop = <undef>; susp = <undef>;
rprnt = <undef>; werase = <undef>; lnext = <undef>; flush = <undef>; min = 1; time = 0;
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-imaxbel -iutf8
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