mbed LPC1768 development kit

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Support for the mbed LPC1768 board

Tip

When using this board with RIOT, set the BOARD variable to mbed_lpc1768 in your Makefile. If you follow the standard RIOT project structure, your Makefile should look like this:

./Makefile

# name of your application
APPLICATION = hello-world

# Change this to your board if you want to build for a different board
BOARD ?= mbed_lpc1768

# This has to be the absolute path to the RIOT base directory:
RIOTBASE ?= $(CURDIR)/RIOT

include $(RIOTBASE)/Makefile.include

Support for the mbed LPC1768 board

Overview

mbed LPC1768 is a small development board by ARM. A LPC1768, an Ethernet PHY transceiver (DP83848J), a 2MB flash device (AT45DB161D) and a MBED-IF01 (LPC2148) are present on the board. This board aims to make it very easy to flash a new firmware. There is no need for an external programmer. The sole purpose of the MBED-IF01 is to appear as a USB flash drive when the board is connected over USB to a computer. The most recent binary file stored on the USB drive is flashed on the next reset.

See here for more information about the board.

Hardware

MCU

MCU	LPC1768FDB100
Family	ARM Cortex-M3
Vendor	NXP
RAM	64KiB SRAM
Flash	512KiB
Frequency	up to 100MHz
Timers	4
UARTs	4
SPIs	2
I2Cs	3
CAN	2
PWM	6
USB Host/Device	1
Ethernet	1
RTC	1
ADC	8 (all 12-bit)
Vcc	2.4V - 3.6V
Datasheet	Datasheet
User Manual	User Manual

User Interface

1 Button:

NAME	SW1
Pin	RESET

5 LEDs:

NAME	LED1	LED2	LED3	LED4	STATUS
Color	blue	blue	blue	blue	blue
Pin	P1.18	P1.20	P1.21	P1.23	N/A

Status LED is not controlled by the LPC1768.

Implementation Status

Device	ID	Supported	Comments
MCU	lpc1768	yes
Low-level driver	GPIO	yes
	ADC	no
	PWM	no
	UART	yes
	I2C	no
	SPI	no
	USB	no
	Ethernet	no
	RTT	no
	RTC	no
	Timer	yes

Using UART

This board opens a serial interface through the USB automatically.

Flashing the device

The easiest way to flash the device is to connect to the board via USB. The board appears as a 2MB usb drive. BOARD=mbed_lpc1768 make flash will copy your binary file to the root directory but you need to manually reset your board by pressing the reset button. While the LPC1768 is flashed by the MBED-IF01 with the new firmware, the status LED blinks fast.