LPCXpresso Base Board rev B - User’s Guide
Page 52
Copyright 2011 © Embedded Artists AB
6
mbed and LPC1xxx Differences
There are small but important differences between the mbed module and the
LPCXpresso boards
, and
there are also small differences between the different
LPCXpresso boards
. This chapter explains the
differences.
Note that the signal names printed in the PCB of the
LPCXpresso Base Board
follow the
LPC1343 board since this was the first one created. The signal names in the schematic have
changed to more generic GPIO_XX names when more LPCXpresso target boards were
developed.
See chapter 5 for pin usage with the generic signal names. There is an Excel sheet on the support site
that contains information about all different LPCXpresso target boards and the pin connections.
6.1
mbed
This document describes the
LPCXpresso Base Board
from the perspective of connecting it to
LPCXpresso boards
with LPC1xxx processors. The board is however also designed for the mbed
module.
The
LPCXpresso boards
are in many ways compatible with the mbed module.
Mechanically they have the same format, except that the
LPCXpresso boards
have more pins
at one end of the board.
Most pins can have the same functionality, like UART, I2C, SPI, analog input, etc.
Figure 55 illustrates how the mbed is mounted on the
LPCXpresso Base Board
. It shall be placed on
the upper most position in J4 when the base board is oriented as in the picture below.
Figure 55 – mbed module mounted on LPCXpresso Base Board
The mbed module has a powerful processor that has built-in peripherals for USB Host, CAN and
Ethernet. The
LPCXpresso Base Board
has special support for this in the form of:
