User manual

Low-power Application Kit (Oryx) - User’s Guide
Page 10
Copyright 2012 © Embedded Artists AB
There is also an LPCXpresso compatible embedded SWD/JTAG interface (called LPC-LINK). This
simplifies program download and debugging. The interface can be completely disconnected in order
not to affect the power consumption when running an application on the LPC11U37.
3.2 Board Overview
Figure 2 below illustrates the board structure. The upper part is the original LPCXpresso LPC11U37
design. This part is physically compatible with the LPCXpresso format. The bottom part of the board
contains the added low-power peripherals.
Figure 2 – The Low-power Application Board (Oryx) Overview
3.3 Usage of CPU Pins
The table below lists which LPC11U37 pins that are used in the design.
LPC11U37 pin
Usage
Expansion
connector (J7)
Indication
connector (J3)
PIO0_0
Reset
Pin 4
PIO0_1
ISP enable push-button
Pin 38
PIO0_2
SPI channel#0 SSEL
Pin 8
PIO0_3
USB VBUS
Pin 39
PIO0_4
I2C-SCL
Pin 41
PIO0_5
I2C-SDA
Pin 40
PIO0_6
USB connect
Pin 23
LPCXpresso
LPC11U37 part
Rechargeable
Lithium coin battery
96x96 pixel LCD and
8 capacitive sensors
Reset, wakeup, ISP
and bat.act.buttons
RTC, accelerometer
and SPI flash
Trimming
pot.
J3
J7, pin 28-54
J7, pin 1-27
J9 – USB interface for
LPCXpresso debugging
J2 – USB interface
for the LPC11U37
JP2