NXP Semiconductors LPC1768 User manual

LPC2468 IRD Kit 1.2 Quick Start Guide, rev. 1.0 Page 1 of 8
1.0 System Overview
The LPC1768 Industrial Reference Design (IRD) is a platform targeted at RTOS based embedded
systems. Designed around a flexible “Core” and “Base” Printed Circuit Board (PCB) concept, it
features many of the system functions and wired communications protocols found in today’s
embedded applications. The flexible design allows for changing of core and base boards, displays
and keypads as needed by the targeted application. The platform is powered from an external
5VDC power supply, and provides circuitry to measure current consumption of 3.3VDC while
operating the platform in different modes. Software development and debug are accomplished with
the use of a JTAG connection and Keil IDE development environment. Hardware circuitry is
incorporated to facilitate In-System-Programming (ISP), allowing software updates to be easily
loaded and demonstrated on the platform.
The version 1.3 kit features:
- NXP-designed (green PCB) LPC1768 core board
- NXP-designed base (green PCB) board
- A phone-style keypad board
- A 20X4 character LCD module
The platform provides demonstration software to perform functional test of the microcontroller
features, such as Ethernet, USB Device, UART, I²C, ADC, and GPIO ports. In the future, the
platform will support Micrium μC/OS-II Real Time Operating System (RTOS), and provides software
support for 10/100Base Ethernet, USB Host/Device, CAN, RS-232, and I2C wired communication
protocols. Additionally, the platform provides flexible interfaces for:
- Vacuum Fluorescent Displays (VFD) or Liquid Crystal Displays (LCD)
- UART expansion
- I2C expansion
- Application specific hardware through connection headers on the baseboard
QuickStart Guide
LPC1768 Industrial Reference Design Platform
System Development Kit Version 1.3
May 2009

LPC2468 IRD Kit 1.2 Quick Start Guide, rev. 1.0 Page 2 of 8
2.0 Assembling the Hardware
2.1. Packing List
The IRD kit includes the following:
1. LPC1768 “Processor Core Board”
2. NXP Industrial Reference Design (IRD) “Baseboard”, version 1.3
3. LCD Display Lumex model# LCM-S02004DSR
4. Display ribbon cable (assembled on the LCD/VFD Display)
5. NXP I2C keypad, version 1
6. External temperature sensor (2N3906-type red/white cabled temperature sensor)
7. Condor 5VDC 2.5A power supply
8. Ethernet Cable
9. USB A/B cable
10. RS232 cable
11. Keil ULINK-ME JTAG Debugger and cables
12. QuickStart Guide (this document )
Contact your supplier if components are missing.
The kit may also include other components as NXP bundles this kit with other reference
platforms (e.g. CAN Board, DALI Solid State Lighting Board, etc). If other components are
included, see the guide associated with that platform. The guide can be found on the included
CD.
2.2. Kit Assembly
The IRD demonstration code programmed into the LPC1768 MCU enables GPIO LED
“Blinky” and provides a baseline for customers to start their LCP17xx development.
1. Connect the following boards as shown in Figure 1 (next page):
- LCD display: Connected to J_VFD
- I2C Keypad: Connected to J_KEYPAD
- External temperature sensor: Connected to J_TEMP
(Red wire to D+, White to D-)
Please read carefully the following assembly
instructions. Failure to follow these instructions
may cause the platform not to function properly.
The following instructions apply to the IRD
platform only.

LPC2468 IRD Kit 1.2 Quick Start Guide, rev. 1.0 Page 3 of 8
Figure 1
Keypad Connection VFD/LCD Connection Temp Sensor Connection
2. Ensure that the following jumpers are in place.
Jumper Default Connection Description
JP2 Jumper connected Used for ICC measurement on IRD
platform when disconnected
JP18 Pins 1&2 connected Enables 3.3VDC from onboard
regulator
JP19 Pins 1&2 connected Enables 5.0VDC from external
Condor power supply.
J_VDISP Pin 2&3 connected Provides 5.0VDC to LCD Display
VREF Jumper connected Provides ADC/ DAC VREF
connection to the microcontroller

LPC2468 IRD Kit 1.2 Quick Start Guide, rev. 1.0 Page 4 of 8
3. Connect the external Condor 5VDC power supply to JPWR (2.5mm plug)
VREFJVDISP JP19JP18JP2
Before moving to Step 3, make sure that ALL the
instructions described in Step 1 , Hardware
connections and Step 2 Jumper configuration
have been properly followed. Failure to follow
these instructions may cause the platform not to
function properly

LPC2468 IRD Kit 1.2 Quick Start Guide, rev. 1.0 Page 5 of 8
4. Wait a few seconds for the system to power-up and examine the four
LEDs on the bottom left side of the base board above the 4 push button
switches. They should be blinking ON from left to right and then OFF
from left to right. By adjusting AD0 (VR1), you can adjust the rate of the
blinking LEDs.
5. The Heartbeat LED (bottom right corner of base PCB) should be blinking at a 1Hz
rate.
The following LEDs should be ON:
1. 5VPWR (Red LED located bottom middle of Base Board)
2. 3V3_PWR (Red LED located bottom middle of Base Board)
3. USB_PWR (Green LED located bottom right of Base Board)

LPC2468 IRD Kit 1.2 Quick Start Guide, rev. 1.0 Page 6 of 8
3.0 Troubleshooting
A few common problems that can occur when operating the IRD are:
1. Hardware related issues:
The keypad and the LCD need to be correctly connected to the “Baseboard”. Refer to section
2.2 of this manual for more information
All jumpers must be configured as per section 2.2 of this manual
The keypad will not respond if the user unplugs and plugs it back in while the IRD is still
powered. When this happens, power down the board and power it up again
4.0 Information and Documents on CD’s
4.1. Documentation
The kit includes a copy of this QuickStartQuickStart Guide.
Schematics, Bill of Material, Gerber files for the Baseboard, IRD User Interface html web
pages, and training modules for the major functions of the IRD platform can be found on NXP
website:
http://www.standardics.nxp.com/support/boards/ird/
4.2. Software – Keil
The IRD LPC1768 kit software was developed using KEIL uVision3 version 3.5. Keil is
providing a 60 day, 256kB trial version for customers using the IRD kit.
To install the Keil IDE go to:
https://www.keil.com/demo/eval/arm.htm
1. Follow the instructions in the Auto-Installer window.
2. During the installation process, it is required to register the product with Keil to receive
the license key for the IDE. You will be asked to enter the PSN number provided in this
kit (label with 15 digit serial number) to register the trial version of uVision.
3. You then will receive the license key for the tool via email. This may take up to 24 hours
to process.
4.3. Software – ULINK-ME Debugger
The ULINK-ME Debugger that is included in the IRD kit allows code debugging and
programming of the LPC1768 Cortex-M3 microcontroller.
1. Connect the ULINK-ME to a PC USB port
2. Connect the JTAG connector to the JTAG port in the IRD Base Board
5.0 Software and Document Updates
Software and documentation updates are available from:
http://www.standardics.nxp.com/support/boards/ird/

LPC2468 IRD Kit 1.2 Quick Start Guide, rev. 1.0 Page 7 of 8
6.0 Connection Headers Reference Table
The following list is a description of all the jumpers and connection headers on the IRD Baseboard
(version 1.3). Additional information can be found in the IRD schematic and User Manual
documents.
JP4 & JP5 – CAN Analyzer Connectors
Pin Label Function
1 CANH Connects CAN Analyzer to CANH signal of TJA1040
2 GND Ground connection
3 CANL Connects CAN Analyzer to CANL signal of TJA1040
CAN_Test – CAN Loopback Interface
Pin Label Function
1 CAN2-L CAN2 Channel CANL Signal
2 CAN1-L CAN1 Channel CANL Signal
3 CAN2-H CAN2 Channel CANH Signal
4 CAN1-H CAN1 Channel CANH Signal
CAN1_PWR & CAN2_PWR – CAN Slave Port Power Connectors
Pin Label Function
1 +5VDC +5VDC Power Supply From External Supply or POE Module
2 CAN-PWR Connects +5VDC to CAN Slave Unit via pin 9 of DB9 Connector
JP8 & JP10 – ISP Mode Selection
JP8 P2_10 The microcontroller is placed in ISP mode when this jumper is
connected, enabling FlashMagic to program the microcontroller.
JP10 RESET The microcontroller is held in reset for ISP programming when this
jumper is connected, enabling Flash Magic to program the
microcontroler
JP9 – UART0 DCE/DTE Selection
Pin Label Function
1 T1OUT RS-232 Serial Data Output from UART0
2 UART0 Pin2 Pin 2 of the UART0 DB9 Connector
3 UART0 Pin3 Pin 3 of the UART0 DB9 Connector
4 R1IN RS-232 Serial Data Input to UART0
JP12 – UART1 DCE/DTE Selection
Pin Label Function
1 T2OUT RS-232 Serial Data Output from UART1
2 UART1 Pin3 Pin 2 of the UART0 DB9 Connector
3 UART1 Pin2 Pin 3 of the UART0 DB9 Connector
4 R2IN RS-232 Serial Data Input to UART1
J_TEMP – External Temperature Sensor Connector
Pin Label Function
1 D- External Temperature Sensor negative (White Wire) connection
2 D+ External Temperature Sensor positive (Red Wire) connection
JP18 – 3.3VDC Source Selection
Pin Label Function
1 +3.3VDC IC13 (Onboard 3.3VDC Regulator) Output

LPC2468 IRD Kit 1.2 Quick Start Guide, rev. 1.0 Page 8 of 8
2 IRD +3.3V Supply IRD +3.3VDC Supply
3 POE_3.3V POE Connector 3.3VDC Supply
JP19 – 5.0VDC Source Selection
Pin Label Function
1 +5.0VDC JPWR +5VDC Source (from Condor External Power
Supply)
2 IRD +5.0VDC Supply IRD +5VDC Supply
3 POE_5V POE Connector 5.0VDC Supply
12V – POE 12VDC Output Connection
Pin Label Function
1 POE_12V POE Connector 12VDC supply connection
2 GND Ground connection
JP2 – IRD Current Monitor Connection
Pin Label Function
1 IRD +3.3V Supply IRD 3.3VDC Source Power
2 +3V3 3.3V IRD Supply Line
J_VDISP – IRD Display Power Source Selection
Pin Label Function
1 IRD +3V3 3.3V IRD Supply Line
2 VFD/LCD VCC VFD &LCD Display Supply Source
3 IRD +5.0VDC IRD +5VDC Supply
J_LCD – LCD Contrast Control Selection
Pin Label Function
1 V_Contrast Contrast voltage from VR2
2 LCD_Contrast LCD Contrast Voltage V0
VREF – Microcontroller VREF Selection
Pin Label Function
1 VREF ADC/DAC reference voltage signal to MCU
2 V3A Filtered 3.3v source for VREF
7.0 Support
Online technical support is available at http://www.nxp.com/support
Manuals and Datasheets: http://www.standardics.nxp.com/support/boards/ird/
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NXP Semiconductors be liable for any damages whatsoever arising out of the use or inability to use the
information or any errors that may appear in this publication. The information is provided as is without any
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make changes to the information or to the design and specifications of its hardware and/or software products.
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NXP Semiconductors
San Jose, CA
USA
www.nxp.com