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About “avrdude: stk500_getsync(): not in sync: resp=0×00” error

Posted by: Alvin Jin , March 27, 2014

Many Arduino users are not unfamiliar with this error. It often appears in our experiments process .

Someone has made a detailed analysis for the error on the web, the analysis is as follows:

avrdude: stk500_getsync(): not in sync: resp=0x00

The problem was interpreted  as a serial communication failure.

In the analysis,  there are some reasons for this error:

  1. In the IDE download process, Arduino is not reset.
  2. Serial pin (0, 1)  are in used.
  3. USB serial port communication is unstable.
  4. Bootloader is damaged.
  5. Used a wrong serial or board type (it can be corrected by choosing the right one).

 




        

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One Response to “About “avrdude: stk500_getsync(): not in sync: resp=0×00” error”

  1. Log in to Reply
    Carlos Soria-Hoyo
    October 15, 2014 at 5:06 am

    Hello

    I have this problem with I upload a program (ASCII example) to the Arduino (Uno). I have found that the problem dissapears if I remove the jumpers and upload again. Once the program is uploaded to the Arduino I reinstall the jumpers and everything works perfectly. I have checked that it transfers to Win XP Hyperterminal.

    It is clear that there is some collision with the RX/TX of the Linksprite RS232 and the Arduino communication with the PC. Perhaps the problem would dissappear by using other pins of the Arduino for RS232 communication.

    Best regards

    Carlos (from Spain).

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