Newbie level 5
I want to design a system control for hoist crane. i want to use a 89S52, this control will control two inverter using dac. I want to make one board with 2 controller inside, one for main unit and the other is for backup. if the main controller has a problem, the second one will take over all the I/O and controlling until the main controller is OK again. can anyone help me how to design this?