Translations:Modem-stretch/5/en

Материал из Wiren Board

Inside the controller, the modem is connected to the processor in one of two ways:

  • via UART port (device /dev/ttyGSM (previously: /dev/ttyAPP0)) - all modems, including 3G;
  • via USB port (devices /dev/ttyACM0-/dev/ttyACM6) - 3G only.

You can work with the modem at a low level by sending commands to the port /dev/ttyygsm or /dev/ttyACM0, respectively. For 3G-connection port UART is not suitable due to the bandwidth limitations of the UART-channel, you should use ACM-port /dev/ttyACM0.

Источник — https://wirenboard.com/wiki/index.php?title=Translations:Modem-stretch/5/en&oldid=72738