hi all VEMS community :)
I got a problem with my genboard.During firmware upgrade and some changes and measurments, I did short circuit on main 5V source (DPAK).Right after that I lost connection to MT and unit appears to be DEAD.Tried to play trigger signal from my soundcard(was working fine before),scoped if signl going to uC,and everything comming in but no reaction.even if I turn it on ,it suppose to prime fuel pump,but it doesn't,and I have also 2 SPECFETs which are inverted(const.ON),and they are seems to be dead as well.Checked all power sources,and power on ATmel's pins and MAX232 ,they are present.Checked MAX232 with terminals 11 and 12 shorted for loopback test - OK.
Is it possible that ATmega is damaged?I know they are very robust,and I fried some other chips due to forgotten signal ground and other mistakes,and it got very hot but always survived...
Any advices...?
thanks Richard