Powering Up The Board; Backup Power Supply; Getting Started - Atmel AT91SAM9261-EK User Manual

Setting Up the AT91SAM9261-EK Evaluation Board
2.4 Powering Up the
Board
2.5 Backup Power
Supply
2.6

Getting Started

2-4
6198C–ATARM–15-Dec-06
AT91SAM9261-EK requires 5V DC (±5%). DC power is supplied to the board via the 2.1
mm by 5.5 mm socket (J1). The coaxial power plug center pin is positive polarity .
The user has the possibility to add a battery (3V Lithium Battery CR1225 or equivalent)
in order to permanently power the backup part of the device. In this case, J9 configura-
tion must to be set in position 1, 2.
Refer to Table 4-1, "Configuration Jumpers and Straps".
The AT91SAM9261-EK evaluation board is delivered with one CD-ROM allowing the
user to begin evaluating the AT91 ARM Thumb 32-bit microcontroller quickly. Please
refer to the AT91 web site, www.atmel.com/products/AT91/, for the most up-to-date infor-
mation on getting started with the AT91SAM9261-EK.
AT91SAM9261-EK Evaluation Board User Guide