Linux下COM口连接使用程序 minicom

用途：Linux下调试交换机等需要COM口操作的情况
软件：minicom
操作：

1. 安装minicom

   dnf install minicom -y
   apt install minicom -y

2. 配置minicom

   minicom -s 
   
   +-----[configuration]------+
           | Filenames and paths      |
           | File transfer protocols  |
           | Serial port setup        |
           | Modem and dialing        |
           | Screen and keyboard      |
           | Save setup as dfl        |
           | Save setup as..          |
           | Exit                     |
           | Exit from Minicom        |
           +--------------------------+
   #选择 Serial port setup
   
   +-----------------------------------------------------------------------+
   | A -    Serial Device      : /dev/ttyUSB0                              |
   |                                                                       |
   | C -   Callin Program      :                                           |
   | D -  Callout Program      :                                           |
   | E -    Bps/Par/Bits       : 9600 8N1                                  |
   | F - Hardware Flow Control : Yes                                       |
   | G - Software Flow Control : No                                        |
   | H -     RS485 Enable      : No                                        |
   | I -   RS485 Rts On Send   : No                                        |
   | J -  RS485 Rts After Send : No                                        |
   | K -  RS485 Rx During Tx   : No                                        |
   | L -  RS485 Terminate Bus  : No                                        |
   | M - RS485 Delay Rts Before: 0                                         |
   | N - RS485 Delay Rts After : 0                                         |
   |                                                                       |
   |    Change which setting?                                              |
   +-----------------------------------------------------------------------+
   #A: 修改com端口，一般机器自带的是 /dev/ttyS0 这里是USB设备，所以是 /dev/ttyUSB0
   #E: 修改波特率等信息，选择后会弹窗，根据需求选择即可。
           +-----[configuration]------+
           | Filenames and paths      |
           | File transfer protocols  |
           | Serial port setup        |
           | Modem and dialing        |
           | Screen and keyboard      |
           | Save setup as dfl        |
           | Save setup as..          |
           | Exit                     |
           | Exit from Minicom        |
           +--------------------------+
   #选择 Save setup as dfl  #保存未默认设置
   #选择 Exit 退出配置

3. 使用minicom

   minicom
   #直接使用以上命令即可自动连接
   Welcome to minicom 2.8
   #
   OPTIONS: I18n
   Compiled on May 20 2024, 19:11:11.
   Port /dev/ttyUSB0, 16:25:40
   #
   Press CTRL-A Z for help on special keys
   #
   [Quidway]

4. 退出minicom

   #按下 Ctrl + A
   #然后按 z
   #
   Welcome to minicom 2.8                     +-------------------------------------------------------------------+
                                          |                      Minicom Command Summary                      |
   OPTIONS: I18n                              |                                                                   |
   Compiled on May 20 2024, 19:11:11.         |              Commands can be called by CTRL-A <key>               |
   Port /dev/ttyUSB0, 16:25:40                |                                                                   |
                                          |               Main Functions                  Other Functions     |
   Press CTRL-A Z for help on special keys    |                                                                   |
                                          | Dialing directory..D  run script (Go)....G | Clear Screen.......C |
                                          | Send files.........S  Receive files......R | cOnfigure Minicom..O |
   [Quidway]                                  | comm Parameters....P  Add linefeed.......A | Suspend minicom....J |
   <Quidway>                                  | Capture on/off.....L  Hangup.............H | eXit and reset.....X |
   <Quidway>                                  | send break.........F  initialize Modem...M | Quit with no reset.Q |
                                          | Terminal settings..T  run Kermit.........K | Cursor key mode....I |
                                          | lineWrap on/off....W  local Echo on/off..E | Help screen........Z |
                                          | Paste file.........Y  Timestamp toggle...N | scroll Back........B |
                                          | Add Carriage Ret...U                                              |
                                          |                                                                   |
                                          |             Select function or press Enter for none.              |
                                          +-------------------------------------------------------------------+
   #按下x即可退出，其他配置可以自己查看上面的介绍

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