upload code, arduino pro mini

Projects Programming
1

I'm uploading this

void setup(){
pinMode(13,'OUTPUT');
}

void loop(){
digitalWrite(13,HIGH);
delay(500);
digitalWrite(13,LOW);
delay(500);
}

it works allright
but I have 2 arduinos of the same kind that when I try to upload the code
this message appears:

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

why?

2 
pinMode(13,'OUTPUT');

Should be:

pinMode(13, OUTPUT);
3

You may need to press the reset button on the Mini Pro to get upload to work - try and time it right! It depends on what sort of USB->serial converter you use.

4

tried it all:
correct the code
and reset
and as I said those are the only that I can't upload the code :frowning:

5

Did you try holding the reset button down, then releasing it just after the IDE shows "Compiled xxx of 32xxx bytes"?

The other thing might be a mismatch between bootloader and the IDE trannsfer speeds.
What you can do is re-install the bootloader - put on Optiboot - then select Uno for a board type.
That was killing me on a standalone board I had, was selecting Duemilanove for board type after installing Optiboot, NickGammon had me use Uno and it worked great after that.

6

it is not a problem of instalation etc, for sure
because I can upload the code in several arduinos
but not in this one, is it broken?