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laris/openwrt-usb-serial.md

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Created June 29, 2018 09:08
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OpenWrt USB转串口模块的调试
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openwrt-usb-serial.md

###安装

opkg install kmod-usb-serial kmod-usb-serial-pl2303

安装完成之后需要手动载入内核模块:

insmod usbserial
insmod pl2303

###测试 插入USB转串口模块之后，在/dev目录可以看到ttyUSB0设备.

###使用串口

####使用shell 读取:

cat /dev/ttyUSB0

写入:

echo "hello" >  /dev/ttyUSB0

####使用Screen应用 screen和SSH登录的效果一样，具有高亮提示，命令格式：

screen /dev/ttyUSB0 115200

ctrl +a+k退出

####使用minicom 设置minicom -s 波特率等 ctl +a调出菜单

  1. Using GNU screen to debug your serial port
  2. Sending Message to Serial Port of Router using Lua
  3. Serial Programming Guide for POSIX Operating Systems
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