Forcing CR in output

[Tatto]

Hello.

I have a doubt and need some help.

I have a small script that opens a serial communication (USB) with a board containing a zigbee module. Almost all the the messages I have to send through this port contains a carriage-return (0x0D) in the end of the string. Is it possible to force this character to output?
Apparently, when I try : "puts $channel ATMY\r", the carriage-return is ignored.

The messages that don't have the CR in the end are well received by the board.

Thank you.
Renato

 

[Bong]

try
"puts $channel ATMY\x0d"

_________________
Bob Rashkin

 

[Tatto]

still not working. =/

is it possible to monitor the output? i mean, see exactly all the bytes sent by "puts"?

 

[Bong]

Well, I would "puts" the same string without the "$channel". That would print it to STDOUT. It may or may not display how you want it to.

More to the point, how are you certain that the behavior you are observing is due to the absence of "\r" or "\x0d"?

_________________
Bob Rashkin

 

[ExpectTheUnexpected]

Shot in the dark, but have you tried:

puts -nonewline "$channel ATMY\x0d"

and maybe:

flush $channel

 

[Tatto]

Well, when I try only "puts ATMY\x0d", I get ATMY on the display, what is reasonable.
Even using -nonewline or the command flush, I don't get the results I expected.

And i know that's the problem, because for the commands that don't ask a CR in the end, my zigbee module sends back what i expected.

So.. i'm still blocked.. But I thank you for your suggestions!

 

[Bong]

maybe \x0d0a

_________________
Bob Rashkin

 

[ExpectTheUnexpected]

If you are using Expect, you can try send_user command.