I'm using L298n motor driver nhi my project. I accidentally attached 6v to 5v pin rather than 12v pin and now when I give 6v to 12v pin, the board gets light up but motor connected to driver does not move.
So, does I fry the driver?
6V is not enough to drive a motor with this chip. Try 12V and see what happens.
That old chip loses about 2V by itself. So your 5V supply leaves 3V for the motor.
Get a better motor driver such as the TB6612FNG or DRV883x. Similar power switching abilities minus the huge losses (and no heat sink).
Sdongre:
I accidentally attached 6v to 5v pin
According to the datasheet you're ok; it can take 7V.
wvmarle:
That old chip loses about 2V by itself. So your 5V supply leaves 3V for the motor.
Closer to 5V lost in fact, if there's a bit more current. Might be that at start up stall current, there's basically no voltitude left.
Hi,
Welcome to the forum.
Please read the first post in any forum entitled how to use this forum.
http://forum.arduino.cc/index.php/topic,148850.0.html . Then look down to item #7 about how to post your code.
It will be formatted in a scrolling window that makes it easier to read.
Can you please post a copy of your circuit, in CAD or a picture of a hand drawn circuit in jpg, png?
What are the motors you are trying to drive?
What is you motor power supply.
Thanks.. Tom.... 
thnx for all replies. the problem is solved now
Sdongre:
thnx for all replies. the problem is solved now
What was the solution, to help other enquirers it would be good if you posted what you did to fix your problem.
Thanks.. Tom..