User manual

LPC4357 Developer’s Kit - User’s Guide

Page 48

The demo application demonstrates some features of the LPC4357 Developer’s Kit:

 The accelerometer and memory mapped register; the row of LEDs (LED16 to LED1) are

controlled by tilting the board.

 Buttons and PCA9532 port expander; there is a running-light pattern on the 8 LEDs controlled

by the I

C port expander. By pressing the push-buttons (also on the I

C port expander) the

pattern can be changed.

 Joystick and GPIO; the 5-key joystick can also control the running-lights pattern. UP-key

increases the speed, CENTER-key returns it to normal and DOWN-key decreases the speed.

LEFT-key changes to the previous pattern for the running lights and RIGHT-key changes to

the next pattern.

 Speaker and DAC; the melody played at startup demonstrates the use of DAC to output a

short sound clip.

 UART and USB-to-UART bridge; a message is printed on the UART. It will look like this:

***************************************************

* *

* Demo Application for the LPC4357 OEM Board... *

* (C) Embedded Artists AB 2012 *

* *

* Thank you for buying Embedded Artists' *

* LPC4357 Developer's Kit *

* *

* ... and congratulations on your choice *

* of microcontroller! *

* *

***************************************************

Version: 1.0, (build October 24 2012)

 LCD controller; the program will detect if a display (one of Embedded Artists’ LCD boards) is

connected on the LCD Expansion Connector and display an image on it, like below.

Figure 29 – Demo Application Image