On Sun, 12 Oct 2014 16:42:22 Kerin Millar wrote:
> On 12/10/2014 13:08, meino.cramer@gmx.de wrote:
> > Hi,
> > 
> > I want to send commands to ttyO1 (serial port on an embedded 
system).
> > The commands are one line each and terminated with CRL/LF (aka 
"DOS").
> > 
> > Since this will be done from a batch script, it should be possible
> > via commandline tools and non-interactively. The serial port is
> > already setup up the right way.
> > 
> > I tried
> > 
> > echo -n"blablabal\x0a\x0d"
> 
> Firstly, this command is missing the -e switch. Secondly, the order of
> the control characters is wrong. I would suggest the use of printf as it
> has fewer pitfalls.
> 
> # printf '%s\r\n' "command"
> 
> --Kerin


Also, are you sure that the standard output of the script is connected to 
the serial port? Try adding "> /dev/tty01" to the end of the echo/printf 
command lines and see if that helps.


-- 
Reverend Paul Colquhoun, ULC.     http://andor.dropbear.id.au/
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