[CentOS] For you old-timers, an RS232 question about data rate confirmation.

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Stephen Harris wrote:

> Since you have loopback adapter connected you need to read/write from
> the device at the same time.  So...  first attempt:
>   cat </dev/ttyr00 > /dev/null &
>   time cat large_file > /dev/ttyr00
> 
> Been a long time since I played with serial comms, but that'd be my first
> attempt.
> 
> Second attempt would be to make a full serial connection to another machine
> (port on the same machine?) and use "ckermit" to transfer a file.
> 

Thanks  Stephen.

Your first attempt was what I was trying to accomplish.   The second
attempt may be what I next try.

Barry

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