Due won't start after power off-on, have to reset

sined23:
Yes. The author said that RESET will be LOW for some usec after power on.
However in some msec I see one more RESET :slight_smile:
But it doesn't metter. More RESETs - better for SAM3X )))

OK. Sooooo..... How does one re-FLASH the 16U2?

Regards,
Ray L.