Hi
Arduino Due development board contains a 16U2 chip acting as a USB bridge, and also a 1200 baudrate detector. When it detects 1200bps, it will assert a reset and erase pin to clear GPNVM bit.
But my confusion is
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Without 16U2, if I upload the sketch through native USB port on SAM, will it detect 1200bps,erase by itself and boots to SAM-BA?
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If I want to upload the sketch, the native USB port should be configured to CDC mode. Which code configures this? Is it in SAM-BA?
Thank you for rely!