I have a problem with my DUE. It sometimes doesn't start the uploaded program after applying a voltage to the board. When it happens I have to push the "reset" button to start the program. It never happens if I unplug input voltage for a while and switch it on again after a couple a seconds but it won't start again if the switch_off_time is more than 10-15s. It's independant on what is the source of the input voltage - usb or dc_plug, no matter what i use, it behaves the same.
My board has C20 measured directly on the board ~30nF (10nF n the scheme). I have already solved the different problem with not-resetting properly the board while uploading - wrong value of R23, I've soldered 1k instead of original 10k.
Still don't know why sometimes DUE doesn't start the program after switching the voltage ON. I've seen others have the same problem but I cannot find the solution for it. Is there something like FUSES in the SAM uP to set a kind of "delay" for the system? I mean sth like 50-60ms?