Hi
I am migrating from 16f887 to 18f458 in a motor control application. both chips work my dev board (labx 2) and also in my prototype rig
until the motor is connected. then the 16f is ok but the 18f has random resets will run sometimes for 20 seconds others 1 second.
I have determined that the problem is complete reset. I also checked with oscilloscope vss is good and no noise on vdd. Lower current to the motor seemed to lengthen run time. Very frustrating. What things can cause the pic to reset.
regards Paul