[savannah-help-public] [sr #109160] fusebits changing error

[vijay]

URL:
  <http://savannah.gnu.org/support/?109160>

                 Summary: fusebits changing error
                 Project: Savannah Administration
            Submitted by: chippevijaya
            Submitted on: Thu 06 Oct 2016 09:58:52 AM GMT
                Category: None
                Priority: 5 - Normal
                Severity: 5 - Blocker
                  Status: None
             Assigned to: None
        Originator Email: address@hidden
        Operating System: GNU/Linux
             Open/Closed: Open
         Discussion Lock: Any

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Details:

Hi,
I am controlling arduino board from raspberry pi.
In my CPP code I am sending writing hex file command using avrdude as below -


system("sudo avrdude -p ATmega32U4 -C /usr/local/bin/avrdude.conf -c pi_32 -v
-U flash:w:/usr/local/bin/at32.hex:i)

Some times It is asking to retrieve back fuse bits like
"Would you like fuse to be changed back? [y/n]"

I can't able to send the command of y/n from CPP system() command, since I am
unable to read stdout until process completes....but process won't complete
until I enter y/n.

I tried "-s" option too. but it stucking more times than completing process.

Is there any direct command line option to check string arrived and giving y/n
at runtime. 





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