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Hi, I'm trying to find the right set of stty parameter settings such that I can send the string "TEST \r" to the device hooked up on my serial port. ...
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  1. #1
    Just Joined!
    Join Date
    Feb 2008
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    4

    stty and serial ports


    Hi,

    I'm trying to find the right set of stty parameter settings such that I can send the string "TEST \r" to the device hooked up on my serial port. I'm using the following command: echo "TEST \r" > /dev/xxx. I'm having difficulties managing all the permutations of mapping new line characters to carriage returns and vice versa and in the end it doesn't seem like I'm having success sending the actual CR to the device. Could someone help?

    Thanks

  2. #2
    Trusted Penguin
    Join Date
    May 2011
    Posts
    4,353
    Try using the "-e" flag to echo, e.g.:
    Code:
    [user@host]$ echo -e "\r\n" > foo
    [user@host]$ cat -v foo
    ^M
    
    [user@host]$

  3. #3
    Just Joined!
    Join Date
    Feb 2008
    Posts
    4
    yes, that was it, thank you.

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