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Dell Edge Gateway 3001 Installation and Operation Manual

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Serial ports

Table 1. Hardware enumeration of serial portsThe following table lists the hardware enumeration of serial ports on the Edge Gateway:
Port labeldevfs deviceudev deviceTermination pin
IOIO1/dev/ttyXRUSB1/dev/serial-port-ioio1GPIO 465
IOIO2/dev/ttyXRUSB0/dev/serial-port-ioio2GPIO 468
NOTE: For more pin-level information about serial ports, see GPIO-port pin definition details.

Configure serial ports

To configure the serial ports, run the following commands in the Dell Command | Configure application:

  1. Adjust the mode in Dell Command | Configure.
    $ cctk -h --serial1
$ cctk --serial1
$ cctk --serial1=rs232
    NOTE: Mode options can be rs232, rs422 or rs485.
    NOTE: cctk serial1 is mapped to IOIO2; cctk serial2 is mapped to IOIO1.
  2. Adjust the port settings.
    # sudo stty -F /dev/serial-port-ioio2 ispeed 115200 ospeed 115200 -echo -onlcr -ixon -ixoff
  3. Send data.
    (root)# echo abcdefg > /dev/serial-port-ioio2
  4. Read data on the second device.
    (root)# cat /dev/serial-port-ioio2

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