【linux】openwrt安装和使用minicom进行串口通信

2022-7-7 16:48| 发布者: 鸣涧| 查看: 215| 评论: 1|原作者: 鸣涧

摘要: 本文讲述如何在【linux】openwrt环境下安装和使用minicom进行串口通信。查询软件源里面有没有minicom包...opkg list先看一下软件源里面有没有minicom包安装 minicom 有的话就直接安装 opkg install minicom，安装 ...

【linux】openwrt安装和使用minicom进行串口通信

本文讲述如何在【linux】openwrt环境下安装和使用minicom进行串口通信。

查询软件源里面有没有minicom包

opkg list先看一下软件源里面有没有minicom包

安装 minicom
有的话就直接安装 opkg install minicom，安装完后执行minicom -v查看版本信息确认是否安装成功
没有话联网更新opkg, 操作如下：

root@SunLink:~# opkg update
Downloading [url]http://downloads.openwrt.org/chaos_calmer/15.05.1/ramips/mt7628/packages/base/Packages.gz.[/url]
Updated list of available packages in /var/opkg-lists/chaos_calmer_base.
Downloading [url]http://downloads.openwrt.org/chaos_calmer/15.05.1/ramips/mt7628/packages/base/Packages.sig.[/url]
Signature check passed.
Downloading [url]http://downloads.openwrt.org/chaos_calmer/15.05.1/ramips/mt7628/packages/luci/Packages.gz.[/url]
Updated list of available packages in /var/opkg-lists/chaos_calmer_luci.
Downloading [url]http://downloads.openwrt.org/chaos_calmer/15.05.1/ramips/mt7628/packages/luci/Packages.sig.[/url]
Signature check passed.
Downloading [url]http://downloads.openwrt.org/chaos_calmer/15.05.1/ramips/mt7628/packages/management/Packages.gz.[/url]
Updated list of available packages in /var/opkg-lists/chaos_calmer_management.
Downloading [url]http://downloads.openwrt.org/chaos_calmer/15.05.1/ramips/mt7628/packages/management/Packages.sig.[/url]
Signature check passed.
Downloading [url]http://downloads.openwrt.org/chaos_calmer/15.05.1/ramips/mt7628/packages/packages/Packages.gz.[/url]
Updated list of available packages in /var/opkg-lists/chaos_calmer_packages.
Downloading [url]http://downloads.openwrt.org/chaos_calmer/15.05.1/ramips/mt7628/packages/packages/Packages.sig.[/url]
Signature check passed.
Downloading [url]http://downloads.openwrt.org/chaos_calmer/15.05.1/ramips/mt7628/packages/routing/Packages.gz.[/url]
Updated list of available packages in /var/opkg-lists/chaos_calmer_routing.
Downloading [url]http://downloads.openwrt.org/chaos_calmer/15.05.1/ramips/mt7628/packages/routing/Packages.sig.[/url]
Signature check passed.
Downloading [url]http://downloads.openwrt.org/chaos_calmer/15.05.1/ramips/mt7628/packages/telephony/Packages.gz.[/url]
Updated list of available packages in /var/opkg-lists/chaos_calmer_telephony.
Downloading [url]http://downloads.openwrt.org/chaos_calmer/15.05.1/ramips/mt7628/packages/telephony/Packages.sig.[/url]
Signature check passed.
root@SunLink:~# opkg install minicom
Installing minicom (2.7-1) to root...
Downloading [url]http://downloads.openwrt.org/chaos_calmer/15.05.1/ramips/mt7628/packages/packages/minicom_2.7-1_ramips_24kec.ipk.[/url]
Configuring minicom.

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查看开发板串口设备

root@SunLink:~# ls /dev/tty*
/dev/tty /dev/ttyS0 /dev/ttyS1 /dev/ttyS2 /dev/ttyUSB0 /dev/ttyUSB1 /dev/ttyUSB2 /dev/ttyUSB3

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注：
/dev/ttyS0 /dev/ttyS1 /dev/ttyS2 MT7628开发自带的串口

UART2与网口1复用说明
UART2与网口1不能同时使用，只能2选1
/dev/ttyUSB0 /dev/ttyUSB1 /dev/ttyUSB2 /dev/ttyUSB3 是EC20 4G模块枚举的串口，下期讲用4G模块拔打电话时，会用到。
用minicom进行串口通信
我们这次用到的串口是ttyS1，执行minicom -s ttyS1 进行配置，选择serial port setup菜单
配置相应的波特率，关闭流控