【教程】minicom使用教程

简介

    Linux下的Minicom的功能与Windows下的超级终端功能类似，能够经过串口控制外部的硬件设备.适于在linux经过超级终端对嵌入式设备行管理.一样也可使用minicom对外置Modem 进行控制.

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Minicom的配置

   第一次 启动时： 需对minicom进行配置： minicom -s
   启动出现配置菜单：

+-----[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serial port setup

进入串口配置
输入A配置串口驱动为/dev/ttyUSB0(说明/dev/ttyUSB0 对应为你链接开发板的端口，由于我是笔记本电脑的，因此用了USB转串口工具，至于链接到哪一个设备，能够经过 ls -l /dev/ttyUSB*查看)

mystery@lcw:/var/lock$ ls -l /dev/ttyUSB*
crw-rw---- 1 root dialout 188, 0 Apr  4 14:49 /dev/ttyUSB0

输入E配置速率为115200 8N1
输入F将 Hardware Flow Control 设 为 NO(这一步很重要，否则可能链接不上)
回车 退出

+-----------------------------------------------------------------------+
| A -    Serial Device      : /dev/ttyUSB0                              |
| B - Lockfile Location     : /var/lock                                 |
| C -   Callin Program      :                                           |
| D -  Callout Program      :                                           |
| E -    Bps/Par/Bits       : 115200 8N1                                |
| F - Hardware Flow Control : No                                        |
| G - Software Flow Control : No                                        |
|                                                                       |
|    Change which setting?                                              |
+-----------------------------------------------------------------------+
        | Screen and keyboard      |
        | Save setup as dfl        |
        | Save setup as..          |
        | Exit                     |
        | Exit from Minicom        |
        +--------------------------+

因为咱们使用minicom做为超级终端控制路由器等设备, 而不是控制modem, 因此须要修改Modem and dialing, 将Init string, Reset string, Hang-up string设置为空.

+--------------------[Modem and dialing parameter setup]---------------------+
|                                                                            |
| A - Init string .........                                                  |
| B - Reset string ........                                                  |
| C - Dialing prefix #1.... ATDT                                             |
| D - Dialing suffix #1.... ^M                                               |
| E - Dialing prefix #2.... ATDP                                             |
| F - Dialing suffix #2.... ^M                                               |
| G - Dialing prefix #3.... ATX1DT                                           |
| H - Dialing suffix #3.... ;X4D^M                                           |
| I - Connect string ...... CONNECT                                          |
| J - No connect strings .. NO CARRIER            BUSY                       |
|                           NO DIALTONE           VOICE                      |
| K - Hang-up string ......                                                  |
| L - Dial cancel string .. ^M                                               |
|                                                                            |
| M - Dial time ........... 45      Q - Auto bps detect ..... No             |
| N - Delay before redial . 2       R - Modem has DCD line .. Yes            |
| O - Number of tries ..... 10      S - Status line shows ... DTE speed      |
| P - DTR drop time (0=no). 1       T - Multi-line untag .... No             |
|                                                                            |
| Change which setting?       (Return or Esc to exit)                        |
+----------------------------------------------------------------------------+

设置完成后选择Save setup as dfl将当前设置保存为默认设置.
在配置菜单 选Save setup as df1保存（必定要记得这一步）
选Exit退出

+-----[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        |
+--------------------------+

下次在输入minicon 便可直接进入。
命令minicom是进入串口超级终端画面，而minicom -s为配置minicom。

Welcome to minicom 2.5
OPTIONS: I18n
Compiled on May  2 2011, 00:39:27.
Port /dev/ttyUSB0
Press CTRL-A Z for help on special keys
c5
Please select function :
0 : USB download file
1 : Uart download file
2 : Write Nand flash with download file
3 : Load Pragram from Nand flash and run
4 : Erase Nand flash regions
5 : Write NOR flash with download file
6 : Set boot params
7 : Set AutoBoot parameter,1:linux 2:wince
8 : Set Lcd Display,1:DH3.5' 2:DH4.3' 3:QC7.0' 4:QC8.0' 5:VGA

注意：非正常关闭minicom，会在/var/lock下建立几个文件LCK*，这几个文件阻止了minicom的运行，将它们删除后便可恢复

mystery@lcw:/var/lock$ ls
LCK..tty8  whoopsie
mystery@lcw:/var/lock$ sudo rm LCK..tty8
[sudo] password for mystery:
mystery@lcw:/var/lock$ ls
whoopsie