LPC3131/41 Developer’s Kit - User’s Guide
Page 7
Copyright 2012 © Embedded Artists AB
Power
Power supply, either via USB or external 9-15V DC
(
LPC3131/41 OEM Board
is powered with +5V)
Current monitors on input voltages
Other
100/10Mbps Ethernet interface base on DM9000A chip (available on base board from
v2.0)
UDA1380 I2S codec with mic in, line in, line out, and headphone out
5-key joystick (via I2C)
3-axis accelerometer
8 LEDs (via I2C)
Trimpot analog input
USB-to-serial bridge on UART (FT232R)
RS232 alternative interface on UART
XBee™ RF-module alternative interface on UART
(note that XBee module is not included in bundle)
Reset push-button and LED
205x135 mm in size
2.2
ESD and Handling Precaution
Please note that the
LPC3131/41 OEM Board
and
LPC31xx Base Board
come without any case/box
and all components are exposed for finger touches – and therefore extra attention must be paid to
ESD (Electro-Static Discharge) precaution.
Make it a habit to always first touch the metal surface of one of the USB or SC/MMC connectors
for a few seconds with both hands before touching any other parts of the boards.
That way, you
will have the same electrical potential as the board and therefore minimize the risk for ESD.
Never touch directly on the
LPC3131/41 OEM Board
and in general as little as possible on the
LPC31xx Base Board
. The keys on the
LPC31xx Base Board
have grounded shields to minimize the
effect of ESD.
Note that Embedded Artists does not replace boards that have been damaged by ESD.
In case you have also connected the
QVGA Display Module
to the
LPC31xx Base Board
, do not
exercise excessive pressure on the LCD glass area. That will damage the display. Also, do not apply
pressure on the two flex cables connecting the LCD. These are relatively sensitive and can be
damaged if too much pressure is applied to them.
Note that Embedded Artists do not replace QVGA Display Modules where the LCD has been
improperly handled.
2.3
LPC3131/41 Core Voltage Precaution
The core voltage for the LPC3131/41 can be dynamically changed, via I2C commands sent to the
LTC3447 voltage converter. The voltage can be set to up to 2V. Note that this is above the limits of the
core voltage. See LPC3131/41 datasheet for details (the maximum core voltage is 1.30V).
