User manual

34
AVR32919
32151A-AVR-09/10
4.8.3 Configuration
4.8.3.1 Bootloader
A USB DFU Bootloader is pre-loaded on the Atmel AT32UC3C0512C. To enter this
bootloader mode, the PB0 push-button must be pressed upon reset, then released. It
is then possible to program the AT32UC3C0512C through the USB DFU Bootloader
(see App note http://www.atmel.com/dyn/products/app_notes.asp?family_id=607
)
.
Figure 4-20. Atmel AT32UC3C-EK Top View USB Bootloader Interface Location
4.8.3.2 USB Over Current Detection
By default the overcurrent detection is not enabled. To enable this feature:
Mount R85 resistor.
PB0
USB DFU Connector