comgt 是一个 GPRS 模块配置工具。它更像是一个脚本语言解释器，通过调用内建、或者外部脚本与 GPRS 和 3G 模块通，解决了在脚本中使用microcom命令需要交互输入AT指令的问题。

编译

    下载comgt.0.32.rar并解压，进入comgt目录，编译命令：make VERBOSE=1，交叉编译需要给CC赋值；安装命令：make DESTDIR=./usr install，安装在./usr/sbin目录下。

使用

root@genvict_imx8qxp:~# ./comgt help
comgt Usage: comgt [options] [built in script]'|[external script]

Built in scripts -
  comgt [default]           Checks SIM status (requests PIN if required),
                           registration and signal strength reported by
                           datacard.
  comgt info                Display configuration of datacard.
  comgt sig                 Report Signal strength.
  comgt reg                 Report Registration status.
  comgt PIN                 Set PIN using COMGTPIN env variable.
  comgt APN                 Set APN using COMGTAPN env variable.

  Valid for GlobeTrotter GPRS only:
      comgt USA                 Switch to 900/1900 MHz band for USA operation.
      comgt Europe              Switch to 900/1800 MHz band for Europen operation.

  Valid for GlobeTrotter EDGE and Combo EDGE only:
      comgt GTEDGE             Switch on radio interface.

  Valid for Vodafone 3G, GlobeTrotter Fusion, GT Max :
      comgt 2G             2G networks only.
      comgt 3G             3G networks only
      comgt 3G2G           3G network preferred

Command line options (must be before script name) - 
  -d device                Use alternative device. e.g -d /dev/ttyUSB0
  -e                       Turn on communication echo.
  -h                       Help.
  -V                       Version.
  -s                       Don't run internal 'default' script before running
                           external script.
  -t=n                    Set alternative line terminator (default=n).
  -v                       Verbose mode. Print lots of trace info.
  -x                       Speed exchange. 115200 replaced by 57600.
                           ***used for GlobeTrotter EDGE and Combo EDGE***
NOTES:
comgt assumes that the GlobeTrotter device is /dev/modem (create a logical link
to actual device or use -d switch). Unless you use the '-s' switch comgt will
run the internal 'default' script first before running an external script file.

外部脚本g.gcom

opengt
    set com 115200n81
    set comecho off
    set senddelay 0.02
    waitquiet 0.2 0.2
    flash 0.1

:start
    send "AT^m"
    get 1 "" $s
    print $s

:continue
    exit 0

调试使用

root@genvict_imx8qxp:~# ./comgt -d /dev/ttyUSB5 -se g.gcom
AT
OK

最后

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