User manual

4
AVR364
8377B-AVR-11/11
Figure 3-2. Functional overview of the Atmel MEGA-1284P Xplained kit.
3.1 Preprogrammed firmware
The MEGA-1284P Xplained kit comes with both the Atmel ATmega1284P and the
Atmel AT32UC3B1256 pr
eprogrammed.
The preprogrammed firmware in the ATmega1284P i
s set up with example code that
allows the user to choose different sleep modes, and provides an example of how to
use the light sensor to dim the four onboard LEDs. It also includes a boot loader
(AVROSP) which allows the user to reprogram the ATmega1284P without usi
ng an
external programmer. Please refer to the Atmel application note, AVR370: MEGA-
1284P Xplained Getting Started Guide, for more details regarding the
preprogrammed firmware.
The preprogrammed AT32UC3B1256 firmwa
re offers features such as a boot loader
for self-programming of the board controller itself, and a USART-to-USB gateway,
which can be used to communicate with the target controller, the ATmega1284P.