l298 and atmega8 problem

[vvarlord]

i have a circuit that uses pwm of atmega 8 and the power bridge of l298n ,to power a dc motor
but when i connect the vs voltage of l298n ,the micro stops working
i used even used seperete power supplys but the same result
any help would be appreciated

 

[wp100]

Hi,

Think you need to show your circuit diagram with power supplies as it should work ok; everything is connected to the same common 0v rail ?

You have got the L298s Enable pins wired correctly ?

When you say the micro stops working, how does it stop, no pwm signals or loss of power or the lcd screen goes off ( if used) ?

 

[vvarlord]

hi

enable pins and gnd rails are checked
micro stops working, pwm stops,and it no longer respond to any input