EA-APP-002 Embedded Artists, EA-APP-002 Datasheet - Page 16

• Manufacturer Part Number: EA-APP-002
• Description: Development Boards & Kits - ARM LOW POWER APP KIT LPC11U37 (ORYX)
• Manufacturer: Embedded Artists

Specifications of EA-APP-002

• Rohs: yes
• Product: Demonstration Kits
• Tool Is For Evaluation Of: LPC11U37
• Core: ARM Cortex M0
• Interface Type: I2C, USB
• Operating Supply Voltage: 5 V

Copyright 2012 © Embedded Artists AB
Low-power Application Kit (Oryx) - User’s Guide
4 Getting Started
This chapter contains information about how to get acquainted with the Low-power Application Kit
(Oryx). Please read this chapter first before you starts using the board - it will be well spent
time!
The design contains many different components that interact with software. The demo application and
the smaller sample applications can help to get started but there is no way around reading the
datasheets for the respective chip before start using it in an application program.
This chapter does not describe how to develop an application program (with the LPCXpresso IDE, or
other). For that, see other documents. This chapter describes important things how to get started and
how to download an application.
4.1
The board is powered by a Lithium battery, LiR2032, 3.6V with 45mAh capacity.
restrictions regarding Lithium batteries when traveling by airplane. Normally it should be no problems
with a small battery like this (with 45 mAh capacity). It is however YOUR responsibility to check what
possible restrictions there are.
The Lithium battery is not fully charged when delivered. The board will therefore not start operating
until the battery has been charged. Simply connect a USB cable between J9 on the board and a
powered PC’s USB interface. Make sure JP2, pin 1-2 is closed by a jumper. See Figure 2 to locate J9
and JP2. Full charging of the Lithium battery takes about 5 hours. The pre-loaded demo application will
start running while charging.
Lithium batteries can be over-charged. The charger solution used on the board is based on the
LTC4071 from Linear Technology. This chip controls the charging and minimizes the risk for over-
charging of the battery.
Note: Observe special care when removing/inserting the battery in its holder. Do not use metal
stick/pin (for example a screw driver) to remove the Lithium battery from the battery holder on
the board. It is very easy to short the battery’s positive and negative connection if a metal stick/pin is
used. If this happens, the battery is likely damaged. Only use isolating materials, for example a
plastic stick to remove the battery.
4.2
The board is reloaded with a demonstration application. A number of small, self-explained applications
can be selected from a main menu. Use the capacitive sensors to navigate in the menu:
The slideshow application relies in bmp pictures in the spi-flash memory. In case the spi-flash content
has been altered, the content must be restored in order for the demonstration application to function
correctly. Simply download and run the production test application. This program will program the bmp
images to the spi-flash. Then download and start the demonstration application.
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Important Note about Lithium Battery
Demo Application
Cap sensor C31 is "down"
Cap sensor C40 is "up"
Cap sensor C41 is "left"
Cap sensor C42 is "right"
Cap sensor C25 is "OK/select".
Applications are typically exited by pressing the wakeup-key.
o Some applications require the wakeup-key to be pressed for a while so the
application can detect the press. The clock application checks once a second while
the slide show application checks once every 5 seconds.
Note that there can be
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