Hi,
I have made Real Time controller using 89c2051,having one relay output.Unfortunetly this is installed in electrical control panel.When ever contactors switches on and off ,processor losses its control.

My question :
1]is Atmel processors are more sensitive to noise than others such as PIC?
2]I have never seen such instance where our Personal COMputer get hangs on due to any electrical noise ,is that only because it has multi layer boards & isolated supply[smps]?
3]Is there any 'master solution' [instead of watch dog]on this Problem.


Regards