系统运维

通信：串行， 并行， COM串口， 485总线，can总线， 单总线

Open打开设备
配置设备 tcsetatttr， tcgetattr
Write， read 写/读数据
关闭close

一.虚拟机串行端口设置:
1.关闭Ubuntu
2.接好6818开发板串口
3.打开:编辑虚拟机设置

4.点击下方:添加

5.点击: 串行端口

6.点击:完成
7.OK

8.开启Ubuntu

二.Linux下minicom配置

1.安装 :sudo apt-get install minicom

sudo minicom
ctrl+A —-> O —-> Serial port setup

gec@ubuntu:~$ sudo 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 +————————–+
串行设置
+———————————————————————–+ A – Serial Device : /dev/ttyS2 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?

+———————————————————————–+

回车

保存 —–> Save setup as dfl

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

回车 ————>>>> Exit from Minicom
sudo minicom —–>>> 回车 (若光标下移,则成功,否则改Serial Device : /dev/ttyS2,还不行就一直往上加)

Minicom发送文件

进入minicom终端 : sudo minicom
Welcome to minicom 2.5

OPTIONS: I18n
Compiled on May 2 2011, 00:39:27.
Port /dev/ttyS2

Press CTRL-A Z for help on special keys

[root@GEC6818 /]#AT S7=45 S0=0 L1 V1 X4 &c1 E1 Q0
-/bin/sh: c1: not found
-/bin/sh: AT: not found[root@GEC6818 /]#

[1]+ Done(127) AT S7=45 S0=0 L1 V1 X4
[root@GEC6818 /]#
[root@GEC6818 /]#
root@GEC6818 /]#rx write_serial 回车

输入完后按ctrl+a +s