ATMEGA1284P-XPLD Atmel, ATMEGA1284P-XPLD Datasheet - Page 5

• Manufacturer Part Number: ATMEGA1284P-XPLD
• Description: Development Boards & Kits - AVR MEGA-1284P Xplained Evaluation kit
• Manufacturer: Atmel

Specifications of ATMEGA1284P-XPLD

• Rohs: yes
• Product: Evaluation Kits
• Tool Is For Evaluation Of: ATmega1284P, AT32UC3B1256
• Core: AVR32
• Interface Type: USB
• Operating Supply Voltage: 5 V
• Data Bus Width: 32 bit
• Factory Pack Quantity: 1

3.2 Power supply
3.3 Measuring the ATmega1284P power consumption
3.4 Communication through the USART-to-USB gateway
8377B-AVR-11/11
The kit is powered via the USB connector, which presents two options for powering it:
Either connect the kit to a PC through a USB cable or to a 5V USB power supply
(AC/DC adapter).
The 5V is regulated to 3.3V with an LDO regulator, which provides power to the entire
board. The
some modifications to the board are needed. This includes replacing the regulator
with one that delivers a 1.8V output and rerouting the power to the device (see
schematic for an explanation). As some of the other ICs on the Atmel MEGA-1284P
Xplained require 3.3V to operate correctly, these devices have to be removed.
As part of an ATmega1284Pevaluation, it can be of interest to measure its power
consumption. The two-pin power measurement header is the only connection
between the VCC_P3V3 common power plane and the VCC_MCU_P3V3 power
plane. By replacing the jumper with an ammeter, it is possible to determine the
ATmega1284P
please refer to
Do not power the board without having the jumper or an ammeter mounted. If
this is done the board might be powered through an I/O pin. The result might be
erratic behavior and the device might get damaged.
The
The
data bits, one stop bit, and no parity.
When the
transmitted from the
that it is possible to use a terminal program on a PC to receive the transmitted data.
Similarly data transmitted from the PC COM port is passed to the
USART through the gateway.
ATmega1284P
ATmega1284P
AT32UC3B1256
Atmel ATmega1284P
Figure
current consumption. To locate the power measurement header,
USART is communicating at 57600 baud using one start bit, eight
USART is connected to a USART on the
ATmega1284P
3-1.
device is enumerated (connected to a PC). the data
is powered by 3.3V, but if 1.8V operation is desired,
is passed to a (virtual) COM port. This means
Atmel
AT32UC3B1256.
AVR364
ATmega1284P
5