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User`s Manual - Embedded Artists

1. P0 17 Can be connected to QVGA display for serial interface SPI MISO P0 18 Can be connected to QVGA display for serial interface SPI MOSI P0 19 No special usage on OEM Base Board P0 20 Can be connected to Ethernet PHY power down input P0 21 Can be connected to QVGA display reset input P0 22 Connects to MCIDATO on SD MMC connector P0 23 Can be connected to analog input trimpot 0 P0 24 Can be connected to analog input trimpot 1 P0 25 No special usage on OEM Base Board P0 26 No special usage on OEM Base Board v1 3 v1 4 Speaker output on AOUT signal on OEM Base Board v1 5 P0 27 12C SDAO connects to U2 PCA9532 IO expander Copyright 2009 Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 17 P0 28 12C SCLO connects to U2 PCA9532 IO expander P0 29 P0 30 Connects to mini AB USB connector J39 P0 31 Connect either to USB device B connector CON1 or USB Host A connector USBB J43 P1 2 Connects to MCICLK on SD MMC connector P1 3 Connects to MCICMD on SD MMC connector P1 5 Connects to MCIPWR on SD MMC connector P1 6 Should not be used due to silicon errata on LPC2468 when using Ethernet P1 7 Connects to MCIDAT1 on SD MMC connector P1 11 Connects to MCIDAT2 on SD MMC connector P1 12 Connects to MCIDAT3 on SD MMC connector P1 13 No special usage on OEM Base Board P1 14 No sp
2. and therefore extra attention must be paid to ESD Electro Static Discharge precaution Make it a habit always to first touch the metal surface of one of the USB connector for a few seconds with both hands before touching any other parts of the boards That way you will have the same potential as the board and therefore minimize the risk for ESD Never touch directly on the LPC2468 OEM Board and in general as little as possible on the OEM Base Board Basic The keys on the OEM Base Board have grounded shields to minimize the effect of ESD Note that Embedded Artists does not replace boards that have been damaged by ESD Copyright 2011 Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 7 1 3 Code Read Protection The LPC2468 has a Code Read Protection function specifically CRP3 that if enabled will make the LPC2468 impossible to reprogram unless the user program has implemented such functionality Note that Embedded Artists does not replace LPC2468 OEM boards where the LPC2468 has CRP3 enabled It s the user s responsibility to not invoke this mode by accident 1 4 CE Assessment The LPC2468 Developers Kit consisting of the LPC2468 OEM Board and Base Board Basic is CE marked See separate CE Declaration of Conformity document The LPC2468 Developers Kit is a class A product In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures
3. LPC2468 Developer s Kit User s Guide Copyright 2011 O Embedded Artists AB LPC2468 Developer s Kit User s Guide TO co pun O y ve T hd 11 Edo pe r CAN mama UART 4 r w300 f y 1090 0 ono J js 4 Pi i oo 4 off 00 Fact 7 433 usar es Se m ULAN module on oo oo active etd OEM Base Board Basic cC 21 E dded Arti uuu E ddedArtists com oo oo o0 oo oo me 00 012 00 14 00 osus tn O 3 1600 ETE P3 20 O O 93 2200 92 2400 91 2600 93 2800 93 2800 94 2800 csz2 oo CLKOUTA O 92 2200 cxes 00 92 2700 2 200 i i i i i i Ft gt f Er F er i i i i i i i i ETH PHY P ETH PHY Ih Get Up and Running Quickly and Start Developing Your Applications On Day 1 Pa Embedded Artists EA2 USG 0702 v1 2 Rev E LPC2468 Developer s Kit User s Guide Page 2 Embedded Artists AB Davidshallsgatan 16 SE 211 45 Malm Sweden info MEmbeddedArtists com http www EmbeddedArtists com Copyright 2005 2011 Embedded Artists AB All rights reserved No part of this publication may be reproduced transmitted transcribed stored in a retrieval system or translated into any language or computer language in any form or by any means electronic mechanical magnetic optical chemical manual or otherwise without the prior written permission of Embedded Artists AB Disclaimer Embedded Artists AB makes no representation or warra
4. EMC emission test has been performed on the LPC2468 Developers Kit Standard interfaces like Ethernet USB serial have been in use General expansion connectors where internal signals are made available for example processor pins have been left unconnected Connecting other devices to the product via the general expansion connectors may alter EMC emission It is the user s responsibility to make sure EMC emission limits are not exceeded when connecting other devices to the general expansion connectors of the LPC2468 Developers Kit Due to the nature of the LPC2468 Developers Kit an evaluation board not for integration into an end product fast transient immunity tests and conducted radio frequency immunity tests have not been executed Externally connected cables are assumed to be less than 3 meters The general expansion connectors where internal signals are made available do not have any other ESD protection than from the chip themselves Observe ESD precaution Note that the LPC2468 OEM board is classified as a component and is hence not CE marked separately It can perform different functions in different integrations and it does not have a direct function It is therefore not in the scope of the CE Directive An end product where an OEM Board is integration into is however very likely to need CE marking 1 5 Other Products from Embedded Artists Embedded Artists have a broad range of LPC1xxx LPC2xxx LPC3xxx LPC4xxx based boards that
5. Hardware Profiles in Hardware profiles provide a way for you to set up and store different hardware configurations Hardware Profiles Figure 11 System Settings Dialog Then select the Device Manager and then open the Ports list as illustrated in Figure 12 below Copyright 2009 Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 31 O see Device Manager File Action View Help e gt 423 Ba 3 IDE ATA ATAPI controllers Se IEEE 1394 Bus host controllers gt Keyboards 15 Mice and other pointing devices Monitors Eg Network adapters 58 1394 Net Adapter 38 Broadcom 440x 10 100 Integrated Controller 8 Dell draadloze WLAN 1450 dubbele band WLAN Mipi E9 Wireless G Notebook Adapter with SRX Gb Other devices H A PCMCIA adapters Ports COM amp LPT R AUSB Serial Port COM3 Processors d SCSI and RAID controllers Sound video and game controllers Y System devices amp Universal Serial Bus controllers MEE H H Figure 12 Device Manager Dialog The new COM port USB Serial Port will be listed under the Ports list Right click on the new USB Serial Port and select Properties as illustrated in Figure 13 below g Device Manager E E X File Action View Help e m rA8S RARA Ey IDE ATA ATAPI controllers e IEEE 1394 Bus host controllers gt Keyboards 15 Mice and other pointing devices USB Serial Port Monitors
6. E9 Network adapters B 1394 Net Adapter E9 Broadcom 440x 10 100 Integrated Controller E9 Dell draadloze WLAN 1450 dubbele band WLAN Mini PC E9 Wireless G Notebook Adapter with SRX Other devices PCMCIA adapters y Ports COM amp LPT 7 TEES Port CO WED s Processors ease de SCSI and RAID controll Uninstal 8 Sound video and game 3 System devices Scan for hardware change amp Universal Serial Bus con 0 H T ja H E Properties E 0 H eS fi es A a Opens property sheet for the current selection property sheet for the current selection Figure 13 Device Manager Port Dialog Set 38400 bits per second 8 data bits none parity 1 stop bit and none flow control as illustrated in Figure 14 below Then select Advanced settings Copyright 2009 Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 32 USB Serial Port COM3 Properties General Port Settings Driver Details UART settings Bits per second Data bits aw Parity none Stop bits Fr Restore Defaults Advanced settings OK Cancel Figure 14 USB Serial Port Properties Dialog Set the desired COM port number under the Advanced settings dialog NXP s FLASH Utility program for ISP program download needs for example a COM port number between 1 and 5 Very often the COM port number selected but the USB Serial Port is higher tha
7. HA into ran disk done FS Mounted root Cronfs filesystem readonly Freeing init memory 56 elcome to Por further information check ttp ww uc linux org Board specific drivers by Enbedded Artists AB ttp www Enbeddedfrtists con Release 2007 02 25 Check for updates sing drivers lpc2468eth ko penac found MAC address in u boot env B8 40 93 00 12 41 mac MAC address 08 48 93 00 12 41 sing drivers lpc2468nnc ko i sector size 512 Bytes card size 512 MBytes gt i o e io scheduler gt ARC drivers lcd ko drivers ade ko drivers i2c ko drivers pun ko drivers sfr ko ed ko nac Creg xler x 808 reg Bx1f B8x9598 link status full duplex 168Mbps 1ib modules 2 6 5 uecLPC kerne 1 drivers ush gadget q_f ile storage ko y file_storage gadget File backed Storage Gadget version 26 January 2884 yg file storage gadget Number of 1 y file_storage gadget lun ro file dev mncal Figure 16 Example Terminal Window Startup Message from uClinux Console 441 USB Driver Behavior Sometimes the USB COM port does not enumerate properly when the board in connected to the PC This is a known feature of the USB driver If you experience this problem just unplug the board shortly and then plug in again A new COM port that can be accessed properly should be created the second time This problem may occur after every time you start i e power cycle your PC If the ISP jumpers are ins
8. Pins Almost all pins of the LPC2468 are directly available on the expansion connectors Only in a few cases are pins used for dedicated functionality like Ethernet interface and USB OTG Such pins are not available on the expansion connector The table below lists all pins and their possible restrictions Pin Usage P0 0 Can be connected to RD1 for CAN channel 1 P0 1 Can be connected to TD1 for CAN channel 1 P0 2 Can be connected to USB to serial bridge TxD on UART 0 P0 3 Can be connected to USB to serial bridge RxD on UART 0 P0 4 Can be connected to RD2 for CAN channel 2 P0 5 Can be connected to TD2 for CAN channel 2 P0 6 Can be used as CS input to QVGA display add on module P0 7 Can be used as RS input to QVGA display add on module P0 8 Can be used as WR RW input to QVGA display add on module P0 9 No special usage on OEM Base Board P0 10 No special usage on OEM Base Board P0 11 No special usage on OEM Base Board P0 12 Can be connected to enable USB host power switch P0 13 Can be connected to LED active low for USB host indicator P0 14 Can be connected to USB device enable device signal USB channel B P0 15 Can be connected to QVGA display for serial interface SPI SCK P0 16 No special usage on OEM Base Board Can be connected to QVGA display with touch screen option serial interface chip select for touch screen controller OEM Base Board v1 5
9. Rev A LPC2468 Developer s Kit User s Guide Page 13 2 5 Known Limitation of LPC2468 OEM Board 2 5 1 SDRAM Clock Frequency 16 bit databus versions There is one known limitation of the LPC2468 16 OEM Board The cpu core clock frequency must not exceed 48 MHz on early boards when using the external SDRAM Note that this limitation only applies when using the external SDRAM If the SDRAM is not used the cpu core frequency can be up to full specification of the LPC2468 different for different chip revisions Normally the internal PLL frequency is set to 288 MHz the external 12 MHz crystal frequency multiplied by 24 Dividing 288 MHz with 6 gives a core frequency of 48 MHz and dividing with 4 gives 72 MHz The table below lists the limitations on different versions of the LPC2468 16 OEM Board e LPC2468 16 OEM Board ver 1 0 Cpu core frequency must not exceed 48MHz when using external SDRAM e LPC2468 16 OEM Board ver 2 0 Cpu core frequency must not exceed 48MHz when using external SDRAM e LPC2468 16 OEM Board ver 2 0a Cpu core frequency can be up to 72MHz 2 5 2 SDRAM Clock Frequency 32 bit databus versions There is one known limitation of the LPC2468 32 OEM Board The cpu core clock frequency must not exceed 48 MHz on boards with rev A LPC2468 chips when using the external SDRAM Also the cpu core clock frequency must not exceed 66 MHz on boards with rev B LPC2468 chips when using the external SDRAM Note that this limitat
10. are very low cost and developed for prototyping development as well as for OEM applications Modifications for OEM applications can be done easily even for modest production volumes Contact Embedded Artists for further information about design and production services 1 5 1 Design and Production Services Embedded Artists provide design services for custom designs either completely new or modification to existing boards Specific peripherals and I O can be added easily to different designs for example communication interfaces specific analog or digital I O and power supplies Embedded Artists has a broad and long experience in designing industrial electronics in general and with NXP s LPC1xxx LPC2xxx LPC3xxx microcontroller family in specific Our competence also includes wireless and wired communication for embedded systems For example IEEE802 11b g WLAN Bluetooth ZigBee ISM RF Ethernet CAN RS485 and Fieldbuses 1 5 2 OEM Education QuickStart Boards and Kits Visit Embedded Artists home page www EmbeddedArtists com for information about other OEM Education QuickStart boards kits or contact your local distributor Copyright 2011 Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 8 2 LPC2468 OEM Board Design This chapter contains detailed information about the electrical and mechanical design of the LPC2468 OEM Board version 2 0 both 16 and 32 bit databus versions The schematic ca
11. are defined as blocks that contain one or more bad bits Do not erase or program factory marked bad blocks Refer to technical notes from Samsung for appropriate management of invalid blocks 2 5 5 Brand of Memory Chips Note that there is no guarantee for a certain brand or version of memory chips NOR flash NAND flash and SDRAM The lifetime of memory chips is limited and availability can also be limited from time to Copyright 2009 Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 14 time Embedded Artists make every effort to mount the original design chip on the board In case that is impossible a compatible chip will instead be mounted without any prior notice There can be small programming differences between mounted brands The application program shall always read the chip id of flash devices to make certain which chip is actually mounted on the board The support page contains datasheets to the different memory devices and information about mounted devices on different board versions Copyright 2009 O Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 15 3 OEM Base Board Basic Design This chapter contains detailed information about the electrical and mechanical design of the OEM Board Basic version 1 3 v1 4 and v1 5 The schematic can be downloaded in pdf format from the support page and is recommended to have printed out while reading this chapter The OEM Base Board contains a number inte
12. data bus board version The PHY is driven by an external 50 MHz clock that is also feed to the LPC2468 This is part of the RMII interface specification The PHY is always enables can be disabled under program control but have an external power down signal that can be used by an external device There is also an interrupt signal from the PHY Copyright 2011 Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 9 that can be used to signal link events like connect disconnect of a cable Neither the power down nor the interrupt signal is used by the LPC2468 OEM Board but the signals are available on the expansion connector If the signals are not used just leave them unconnected Due to silicon errata on early chip revisions the P1 6 pin is left unused This blocks the use of the alternative function MCIDATO which is relevant for the MCI interface In this case pin P0 22 can be used instead since the MCIDATO signal is available in this pin also 2 1 5 External Memories There are three external memory chips connected to the external memory bus interface of the LPC2468 16 bit databus width is used on the board e An external NOR FLASH 32 MBit 4 MByte in size addressed by CSO address range 0x8000 0000 0x80FF FFFF 16 bit databus width is used here e An external NAND FLASH 1 GBit 128 MByte in size addressed by CS1 address range 0x8100 0000 0x81FF FFFF 8 bit databus width is used here e Anext
13. Board 13 2 5 1 SDRAM Clock Frequency 16 bit databus versions 13 2 5 2 SDRAM Clock Frequency 32 bit databus versions 18 2 5 3 Ethernet Clock 32 bit databus versions 13 2 5 4 NAND FLASH Bad Block 18 2 5 5 Brand of Memory Chips 13 3 OEM Base Board Basic Design 15 3 1 Usage of CPU Pins 16 3 2 Jumpers 20 3 2 1 USB VBUS Sense 20 3 2 2 Illegal Jumper Combinations 21 3 3 Connectors 21 3 3 1 JTAG Connector Issue 22 3 3 2 Mictor 38 ETM Connector 22 3 4 Important Components 22 3 5 QVGA Display Add on Board 23 3 6 Display Version 1 vs Version 2 23 Copyright 2011 O Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 4 3 7 Interface Configuration Display Version 2 24 3 7 1 Touch Screen Option on Display Version 2 24 3 8 Interface Configuration Display Version 1 25 3 8 1 QVGA Display Jumper Settings 26 4 Getting Started 27 4 1 Basic Requirements 27 4 2 Initial Setup and Powering 27 4 3 LAN Ethernet Setup 29 44 FTDI USB Driver 30 4 4 1 USB Driver Behavior 33 5 Further Information 34 Copyright 2011 O Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 5 1 Introduction Thank you for buying Embedded Artists LPC2468 Developer s Kit based on NXP s ARM7TDMI S LPC2468 microcontroller This document is a User s Guide that describes the LPC2468 OEM Board both 16 and 32 bit data bus versions and the OEM Base Board Basic hardware design lt is the User s Manual for both the LPC2468 Developer s Kit as wel
14. This pin is currently not used Set to L BWS2 CFG6 Copyright 2009 O Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 26 If the parallel interface is selected the 86 interface is selected since the C86 input pin is pulled low See datasheet for details about timing and how the different control signals are used For the 86 interface the RD E signal is Read strobe and the WR RW signal is Write strobe If a serial interface is used see the datasheet for details about timing and how the different control signals are used Note that maximum clock frequency is 10 MHz 3 8 1 QVGA Display Jumper Settings The picture below illustrates the jumper settings for the display Jumpers to select interface to display Left position for parallel interface connected to the memory bus Right position if serial interface Insert if serial interface else remove BRB CEEA Figure 7 QVGA Display Jumper Settings on the OEM Base Board Basic Copyright 2009 Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 27 4 Getting Started This chapter contains information about how to get acquainted with the LPC2468 OEM Board and the associated uClinux port In this quick guide you get to take the first step and start using the board Please read this section first before you start using the board it will be well spent time The board is pre loaded with an uClinux distribut
15. a USB to Serial bridge chip FT232R from FTDI that connects UART channel 0 on the LPC2468 to a virtual COM port on the PC via USB It is this serial channel that is the console interface to the uClinux system Special USB drivers must be installed on the PC in order for the virtual COM port to be created See Section 4 4 for a description of how to install the FTDI USB driver There are four jumpers on the OEM Base Board related to the USB serial channel connected to UART 0 of the LPC2468 See Figure 9 below for details about where the jumpers are located Make sure the automatic ISP jumpers are open If not it s possible that a terminal program resets the board and or enable ISP mode by accident These jumpers should normally always be open The only exception is when updating the u boot bootloader or downloading program code into the internal FLASH via ISP functionality USB Connector Automatic ISP jumpers Shorted enable ISP Open disable ISP RX TX jumpers Both jumpers always to the left 3 D 000 so oo 9 FR ay yee om Figure 9 Jumper Settings for USB Serial Connection Now follow the steps below to get contact with the uClinux console interface of the system 1 Connect the USB cable between the PC and the LPC2468 OEM board 2 Verify that the power LED on the LPC2468 OEM Board lights 3 Search for the new virtual COM port that is created This can be down from the Device Manager in W
16. be implemented in software which is not provided for free 2 1 8 Reset Generation The rest generation is handled by a standard voltage supervisor chip CAT811S from Catalyst Semiconductor The reset signal will be held active i e low until the supply voltages 3 3V is within margins The reset duration is typically 200 mS consult the CAT811S datasheet for exact details The output reset signal is push pull output that is converted to an open collector open drain output via the 74LVC1G125 buffer An external reset source can pull the reset signal low with an open collector open drain output The reset generator can be found on page 4 of the schematic 2 1 9 I2C E2PROM There is also a 256 kbit E2PROM accessible via the 12C interface The LPC2468 microcontroller has three on chip 12C communication channels Channel 0 is used for communicating with the E2 PROM More peripheral units are easily connected to the two wire 12C bus just as long as the addresses do not collide The address of the 256kbit E2PROM is 0xA0 There are 1 5 kohm pull up resistors which are always needed on 1 C busses included on the board The 12C E2PROM can be found on page 4 of the schematic 2 1 10 uSD transflash Connector On page 4 of the schematic there is a uSD transflash connector interface Note that the polarity of the power control is reverse from the standard on the OEM Base Board Also note that the memory card connectors cannot be used simulta
17. ctor J48 Copyright 2009 Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 21 3 2 2 Illegal Jumper Combinations Note that some jumpers are mutual exclusive and should not be inserted simultaneously e Jumpers for CAN channel 1 and channel 2 J34 should not be inserted simultaneously e Jumpers for UART channel 1 external RS232 modem J36 and the WLAN add on module J38 should not be inserted simultaneously e When using the 32 bit data bus version of the LPC2468 OEM Board all jumpers in connectors J36 and J38 should always be removed The UART signals in signals P3 xx else collide with the upper 16 data bits of the data bus J36 connects the RS232 interface to UART 1 and J38 connects the WLAN interface to UART 1 3 3 Connectors Figure 3 below illustrate the position of all external connectors on the OEM Base Board Basic Board picture is from older revision of the board but all essential parts are identical Input power Expansion connector J2 display E expansion connector 2 J11 Sn USB Host J43 a ILE of ooooopoon p USB Device CON1 USB OTG J39 Figure 3 OEM Base Board Basic External Connectors Copyright 2009 Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 22 3 3 1 JTAG Connector Issue Note that pin 20 on the JTAG connector J21 is left open Most JTAG debuggers do not require t
18. d to 3 3V power P2 21 P2 23 VSSA supply P2 25 P2 27 X1 X2 No directly connected to on P2 16 P2 17 Yes but used as RAS CAS RTCX1 board crystals and only available as outputs f RTCX2 via a buffer P2 18 No used as JTAG signals Yes P2 20 CLKOUTO DYCSO0 CKEO for P2 24 external SDRAM RESET Yes RSTOUT P2 28 P2 29 Yes but used as DQM0 DQM1 for external SDRAM and only available as outputs via a buffer P2 30 P2 31 Yes but used as DQM2 DQM3 on 32 bit data bus version LPC2468 OEM Board User s Guide Copyright 2007 O Embedded Artists AB The OEM Base Board illustrates how to typically connect external interfaces like Ethernet USB external memory devices etc to the LPC2468 OEM Board Study this schematic for details 2 4 LPC2468 OEM Board Mechanical Dimensions Figure 1 below contains a drawing of the board that includes mechanical measures Two FX8C 100S connectors from Hirose are used as expansion connectors Both the 16 and 32 bit data bus version of the board fit the same connector measurements Mating connectors on the base board are FX8C 100P Small half circle in the middle of the board 80 mm 16 bit data bus version 75 mm 32 bit data bus version QU Y 65 mm 16 bit data bus 40 mm 32 bit data bus 60 96mm 2400 mil FX8C 100S connectors on back side Centered on X and Y axis Figure 1 LPC2468 OEM Board Mechanical Dimensions iA Embedded Artists EA2 USG 0702 v1 0
19. e Both address and data busses are buffered 2 3 Usage of CPU Pins Almost all pins of the LPC2468 are directly available on the expansion connectors Only in a few cases are pins used for dedicated functionality like Ethernet interface and USB OTG Such pins are not available on the expansion connector The table below lists all pins and their possible restrictions Copyright 2011 O Embedded Artists AB Pin Availab on expansion P3 0 P3 15 Yes but used as data bus connector and only available via data P0 0 P0 26 Yes bus buffer P0 27 P0 28 Yes but I2C E2PROM P3 16 P3 31 Yes On 32 bit data bus connected to these pins versions these pins are used for upper 16 bits of the data P0 29 P0 30 Ma but external camas bus and are only available IAE Mendo via the data bus buffer these pins P0 31 Yes P4 0 P4 23 Yes but used as address bus and only available as USBB Yes outputs via buffers P4 24 P4 27 Yes but used as oo ba connected to Ethernet OE WE BLSO BLS1 and only ps available as outputs via a P1 8 P1 10 buffer P1 14 P1 17 P12P13 Yes P4 28 P4 29 Yes P1 5 P1 7 P4 30 P4 31 No used as CS0 CS1 for P1 11 P1 13 external NOR NAND FLASH P1 18 P1 26 memories P1 30 P1 31 i P1 27 P1 29 No connected to external EAI Lcda USB OTG tranceiver ALARM Yes P2 0 P2 15 Yes VREF Yes Note that VDDA is P2 19 VDDA connecte
20. e LPC2468 CPU can access the display via an 8 bit parallel interface 16 bit parallel interface or an 8 bit serial SPI like interface The 16 bit parallel interface is the fastest and result in quickest display update time Jumpers to select interface to display Embedded Artists Figure 5 QVGA Add on Module Mounting on OEM Base Board 3 6 Display Version 1 vs Version 2 There exist two versions of the display Version 1 uses a display from one display manufacturer and version 2 uses a display from another manufacturer The picture above is of display version 1 The similarities between the versions are e Same physical size of display module e Same optical features and capabilities e Same main 2x20 pos interface connector 100 mil spacing The differences are e Different internal display controllers are used The programming interface is not identical but very similar A reference software driver exists that supports both versions simultaneous The uClinux driver supports both versions automatically e Version 2 of the display module has a touch screen option Copyright 2009 Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 24 e A6pos extra interface connector has been added beside the main 2x20 pos interface connector on version 2 This extra connector carries signals for touch screen interface and some extra signals for direct RGB control of display useful when interfacing the LPC2478 MCU
21. e output e P0 18 MOSI SPI master output slave input e P2 13 Optional interrupt pin connected via jumper The picture below illustrates the jumper settings for the touch screen option Copyright 2009 O Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 25 Jumpers to select interface to display Settings do not affect touch screen interface Insert to enable interrupt from touch screen controller Connects P2 13 to interrupt signal Insert to enable serial interface to touch screen controller a m Figure 6 QVGA Display Jumper Settings for Touch Screen Option on Display Version 2 3 8 Interface Configuration Display Version 1 There are 6 pins that are used to configure the interface The table below lists the different options L is statically tied to low logic level and H is statically tied to high logic level 16 bit 16 bit 16 bit 8 bit 8 bit 8 bit 9 bit 8 bit parallel parallel parallel parallel parallel parallel serial serial 18 bit 18 bit 16 bit 18 bit 18 bit 16 bit 18 bit 16 bit Configuration color color color color color color color color ins depth depth depth depth depth depth depth depth p 9 9 16 2 Default 6 6 6 8 8 2 8 8 9 9 8 8 Setting L L L L L L H H PSX CFG1 H H L H H L DTX1 CFG2 L H L L H H DTX2 CFG3 L L L H H H H H BWS0 CFG4 H H H H H H L H BWS1 CFG5 Does not matter
22. ecial usage on OEM Base Board P1 15 No special usage on OEM Base Board P1 16 No special usage on OEM Base Board P1 17 No special usage on OEM Base Board P1 18 Connects to LED active low to be used for USB channel A indicator P1 19 No special usage on OEM Base Board P1 20 No special usage on OEM Base Board P1 21 No special usage on OEM Base Board P1 22 No special usage on OEM Base Board P1 23 No special usage on OEM Base Board P1 24 No special usage on OEM Base Board P1 25 No special usage on OEM Base Board P1 26 No special usage on OEM Base Board P1 30 Can be connected to VBUS signal from USB host power P1 31 Can be connected to over current error signal from USB host power switch P2 0 P2 9 Connects to ETM pads if connector mounted Else these signals have no special usage on OEM Base Board P2 10 Connected to push button for enabling bootloader during reset or EINTO input Also connects to LED active low Connects to USB to serial bridge for automatic ISP functionality P2 11 Can be connected to Ethernet PHY interrupt output P2 12 Can be connected to NAND FLASH busy output P2 13 No special usage on OEM Base Board Can be connected to QVGA display with touch screen option interrupt output from touch screen controller only on OEM Base Board v1 5 Copyright 2009 Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 18 P2 14 When used as CS2 can be used to co
23. er for the USB to UART chip FT232R to function Make sure to download the latest version of the driver which can be found at the following URL http www ftdichip com Drivers VCP htm search for a FT232R driver for your operating system Latest version of the driver at the time of writing this document is 2 00 00 When the OEM Base Board is connected to the PC via an USB cable the PC will ask for a driver Unpack unzip the downloaded driver file and browse to the position of the driver files After successful driver installation a COM port will be created Before communication with the Board can take place the UART settings must be correctly set The following description is valid for Windows XP but other operating systems have similar dialog windows See the USB driver documentation for details if needed To change UART settings first open the System Properties dialog as illustrated in the figure below System Properties System Restore Automatic Updates f g Remote j General Computer Name Hardware Advanced Device Manager Device The Device Manager lists all the hardware devices installed on Manager your computer Use the Device Manager to change the properties of any device Device Manager Drivers ey Driver Signing lets you make sure that installed drivers are A compatible with Windows Windows Update lets you setup how Windows connects to Windows Update tor drivers Driver Signing Windows Update
24. ernal SDRAM 256 MBit 32 MByte in size addressed by DYCSO address range OxA000 0000 OxAFFF FFFF Depending on board version either 16 bit or 32 bit databus width is used here The NAND FLASH has an optional busy output that can be used for controlling the erase program operations with better precision The signal is available on the expansion connector If needed the signal can be routed to a suitable i e free input pin The busy status of the chip is also available under software control 2 1 6 External Memory Interface The LPC2468 memory interface is available on the expansion connector The data bus width is either 16 or 32 bits on the external interface depending on board version All signals are buffered The buffers are disabled unless enabled by external signals By pulling signal ABUF_EN low the two buffers for address and control signals are enabled and act as outputs from the LPC2468 OEM Board On some OEM Boards notably on v2 0 OEM Boards mounted on v1 3 OEM Base Boards signal ABUF_EN is always pulled low This is due to a limitation on the OEM Base Board Basic v1 3 which should pull this signal low but lack this part The effect is that the two address and control signal buffers are always enabled The data bus buffer is controlled by the signal DBUS_EN By pulling this signal low the data bus buffer is enabled The LPC2468 signal OE controls the direction of the data bus buffer During read operations the bu
25. erted pressing the reset button is often required in order to startup the board it can be placed in bootloader mode during startup due to RTS DTR signal handling by the USB driver during startup Copyright 2009 Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 34 5 Further Information The LPC2468 microcontroller is a complex circuit and there exist a number of other documents with a lot more information The following documents are recommended as a complement to this document 1 NXP LPC2468 Datasheet http ics nxp com products Ipc2000 datasheet Ipc2468 pdf 2 NXP LPC2468 User s Manual http ics nxp com support documents microcontrollers pdf user manual lpc24xx pdf 3 NXP LPC2468 Errata Sheet http ics nxp com support documents microcontrollers pdf errata lpc2468 pdf 4 ARM7TDMI Technical Reference Manual Document identity DDI0029G http www arm com pdfs DDIO0029G_7TDMI_R3_trm pdf 5 ARM Architecture Reference Manual Document identity DDIO100E Book Second Edition edited by David Seal Addison Wesley ISBN 0 201 73719 1 Also available in PDF form on the ARM Technical Publications CD 6 ARM System Developer s Guide Designing and Optimizing System Software by A N Sloss D Symes C Wright Elsevier ISBN 1 55860 874 5 7 Embedded System Design on a Shoestring by Lewin Edwards Newnes ISBN 0750676094 8 GNU Manuals http www gnu org manual 9 GNU ARM tool chain for Cygwin http
26. ffer acts as an input and during write operations it acts as an output Note that DBUS_EN must not be pulled low constantly In that case the buffer will collide with the board s internal data bus DBUS_EN must only be pulled low when an external memory IO device is accessed If for example CS2 is used to decode and access an external device connect the signal CS2 directly to DBUS_EN If more than one chip select signal is used logically AND all chip select signal together before driving the DBUS_EN signal The OEM Base Board contains an example of this If the external memory interface is not used leave ABUS_EN and DBUS_EN unconnected 2 1 7 USB OTG The LPC2468 contains both a USB device and USB host interface Two alternative USB signal pairs exist USB channel A and channel B Some restrictions exist for how device and host interfaces can be mixed See the LPC2468 User s Manual for details about this Copyright 2011 O Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 10 An external USB OTG transceiver ISP1301 from NXP is connected to USB channel A The chip is only active during initial OTG signaling for deciding if the unit shall be a USB device or host The chip also provides pull up pull down functionality on D D signals needed for USB device host advertising If OTG functionality is not needed the chip is inactive and does not interfere with the USB communication Note that the USB OTG negotiation must
27. for the RTC during these low power modes comes from the VBAT input pin Power is sourced either from the 3 3V power supply or the external VBAT_IN signal available on the expansion connector depending on which one have highest voltage 2 1 2 Powering There is no internal power supply on the board The LPC2468 contains an internal DC DC converter to generate the internal 1 8V power needed by the core The LPC2468 OEM Board module must be powered by a single external 3 3V power supply The supply must be stable and should have at least four 68uF bulk capacitor s close to the power pins on the expansion connectors 2 1 3 Analog Inputs Outputs The LPC2468 contains analog peripherals that need a reference voltage which is supplied from the VREF input pin This reference voltage that must be supplied externally can be the VDDA power which is a filtered 3 3V power supply The VDDA power is available on the expansion connector under the name V3A See schematic for details A filtered version of analog ground is also available under the name VSSA 2 1 4 Ethernet Interface The LPC2468 have an internal Ethernet MAC peripheral with interface to an external PHY i e the analog interface to an Ethernet interface Page 2 of the schematic contains the Ethernet PHY The KSZ8001L external Ethernet PHY from Micrel is used and interfaces the LPC2468 via the RMII interface on 16 bit data bus version The DP83848 from National is used on the 32 bit
28. from NXP 3 7 Interface Configuration Display Version 2 There are 6 pins that are used to configure the interface The table below lists the different options L is statically tied to low logic level and H is statically tied to high logic level Note that only 4 of the pins are used to configure the display The four different relevant options are listed in the table below Read the display controller documentation for further information about the other interface options 16 bit parallel 9 bit parallel 8 bit parallel 4 wire serial SPI i f 8080 style i f 8080 style i f 8080 style i f Configuration pins Default Setting H L L L PSO CFG1 L E L H PS1 CFG2 L H L H PS2 CFG3 H L H H PS4 CFG4 Does not matter This pin is currently not used CFG5 Does not matter This pin is currently not used CFG6 3 7 1 Touch Screen Option on Display Version 2 The touch screen controller used is TSC2046 from Texas Instruments This chip has a SPI interface and shares the SI SO SCK pins in the main interface connector with the LCD controller The TSC2046 chip select CS must be low i e active in order to communicate with the touch screen controller See TSC2046 datasheet for details about the serial interface The SPI interface to the touch screen controller is configured as below e P0 15 SCK SPI clock signal e P0 16 SSEL chip select for controller e P0 17 MISO SPI master input slav
29. ge on OEM Base Board P3 30 Can be connected to RS232 interface or WLAN add on module P3 31 No special usage on OEM Base Board P4 0 P4 23 The address bus A1 connects to QVGA display add on module RS input P4 24 Connects to QVGA display add on module RD_E input P4 25 Connects to QVGA display add on module WR_RW input Copyright 2009 Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 19 P4 26 No special usage on OEM Base Board P4 27 No special usage on OEM Base Board P4 28 No special usage on OEM Base Board P4 29 No special usage on OEM Base Board VBAT No special usage on OEM Base Board ALARM No special usage on OEM Base Board VREF Connects to VDDA V3A VDDA Used to generate reference voltage for trimpots analog inputs VSSA JTAG signals Connected to standard 20 pos 2x10 pin JTAG connector JTAG Enable jumper also exists RESET Connects to RESET push button and USB to serial bridge for automatic ISP functionality RSTOUT Connects to RESET LED indicator Used to reset U2 PCA9532 Can be connected to QVGA display reset input Copyright 2009 Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 20 3 2 Jumpers The OEM Base Board has a number of jumpers in order to be able to connect disconnect and fully utilize all functionality of the LPC2468 and the boards Figure 2 below illustrates all jumpers and explai
30. his specific pin to be grounded One known JTAG debugger however requires this pin to be grounded and thatis Amontec JTAGkey Tiny In case you experience problems test to ground pin 20 for example by a soldering joint between pin 18 and 20 of the connector 3 3 2 Mictor 38 ETM Connector The ETM connector J22 is not mounted on the board It s designated J6 The connector can be soldered to the board if needed The connector is from Tyco Electronics Amp and is a 38 way receptacle Mictor connector 0 025 pitch part number 767054 1 or 2 5767004 2 RoHS compliant 3 4 Important Components Figure 4 below illustrates the position on the OEM Base Board Basic for some important components in the design Board picture is from older revision of the board but all essential parts are identical WLAN module factory reset key SD MMC LEDs power inserted write protected USB to serial activity LEDs Reset push button and Reset LED N Te P2 10 push button SW6 2 trimpots for analog inputs Trimpot for speaker output On v1 5 boards not shown on picture Figure 4 OEM Base Board Basic Important Components Copyright 2009 Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 23 3 5 QVGA Display Add on Board The picture below illustrates how the display is used as an add on module to the OEM Base Board Th
31. indows 4 Make sure the settings of the new COM port is 38400 bps 8N1 8 databits no parity 1 stopbit The COM port number should be a low number preferably below 6 since some terminal programs can only handle COM port number up to 5 5 Mare sure the automatic ISP jumpers are open and that the RX TX jumpers are closed as in the picture above 6 Start a terminal program and connect to the new COM port 7 Press the reset button lower left corner of the OEM Base Board and observe the system console output in the terminal program window Copyright 2009 Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 29 4 3 LAN Ethernet Setup Figure 10 below illustrates how to connect the OEM Base Board to your PC via Ethernet Either directly the red cable or via an Ethernet switch hub the blue cable The red cable is a crossed Ethernet cable and the blue is a normal cable The uClinux Ethernet driver of the LPC2468 OEM Board can automatically detect the type of cable and act accordingly so different cables are not strictly needed Your PC Figure 10 Ethernet LAN Cable Connection The Ethernet cable should be connected during powerup Else there will be a long timeout delay where the board waits for a valid Ethernet link The default network configuration of the LPC2468 OEM Board is IP address 192 168 0 100 Netmask 255 255 255 0 Default gateway 192 168 0 1 Nodes on an IP network can communica
32. ion and some of the sections below focus on getting contact with the uClinux system console 41 Basic Requirements This is a list of what you need to have before you start e A Windows PC with an Internet browser e g Internet Explorer or Firefox a Telnet client a FTP client and or a SSH client A Windows PC has Internet Explorer a Telnet and a FTP client as default e A suitable terminal program e An Ethernet cable LAN cable to connect the board to your PC a crossed cable if direct connection to the PC or a normal cable if connected to a switch or hub e Optionally a power supply 9 15V DC 2 Amp A 2 1mm standard power plug is used Any polarity 4 2 Initial Setup and Powering The board can be powered from a PC via the included USB cable mini B to A cable A separate power supply is however needed in stand alone situations or when running USB Host application when powering external USB devices The power supply should be 9 15V DC 2 Amp A 2 1mm standard power plug is used to interface the board Any polarity is accepted See Figure 8 below for locating the USB connector and or the 2 1mm power connector Itis possible to have both the USB cable and external powering connected to the board at the same time Your PC Optional Powering USB cable Figure 8 Powering of OEM Base Board Basic Copyright 2009 O Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 28 The OEM Base Board contains
33. ion only applies when using the external SDRAM If the SDRAM is not used the cpu core frequency can be up to full specification of the LPC2468 different for different chip revisions On rev A chips the internal PLL frequency is normally set to 288 MHz the external 12 MHz crystal frequency multiplied by 24 Dividing 288 MHz with 6 gives a core frequency of 48 MHz and dividing with 4 gives 72 MHz On rev B chips the internal PLL frequency can be set to 528 MHz the external 12 MHz crystal frequency multiplied by 44 Dividing 528 MHz with 8 gives a core frequency of 66 MHz and dividing with 11 gives 48 MHz for USB core 2 5 3 Ethernet Clock 32 bit databus versions There is one known limitation of the LPC2468 32 OEM Board Due to an error in clock routing between the Ethernet PHY and the LPC2468 the boards have been modified slightly The error is also temperature dependent Only a small number of boards have been shipped without this modification and these boards were tested not to have any problems The schematic for the board illustrates the modification made on boards shipped after September 2008 2 5 4 NAND FLASH Bad Block The NAND Flash is the K9F1G08U0A from Samsung and contains 1G bit with a spare 32M bit capacity The chip may include invalid blocks when shipped from factory A maximum of 20 invalid blocks may exist initially i e 1004 1024 valid blocks Additional invalid blocks may develop while being used Invalid blocks
34. l as for just the LPC2468 OEM Board There is a separate document describing program development for the LPC2xxx series in general 1 1 Features Embedded Artists LPC2468 OEM Board with NXP s ARM7TDMI LPC2468 microcontroller lets you get up and running quickly The small form factor OEM board offers many unique features that ease your learning curve and program development The board has also been designed for OEM applications with volume discount available e NXP s ARM7TDMI S LPC2468 microcontroller in BGA package with 512 KByte program FLASH and 96 KByte SRAM e External FLASH memories 128 MB NAND FLASH and 4 MB NOR FLASH e External data memory 32 MB SDRAM e 12 0000 MHz crystal for maximum execution speed and standard serial bit rates including CAN and USB requirements e 32 768kHz RTC crystal e 100 10M Ethernet PHY interface based on Micrel KSZ8001L 16 bit data bus version and National DP83848 32 bit data bus version e USB OTG support on USB A channel via external ISP1301 chip e 256 Kbit 12C E2PROM for storing non volatile parameters e Buffered 16 or 32 bit data bus for external expansion e Connector Two 100 pos connector FX8C 100 from Hirose 0 6mm pitch All LPC2468 pins available except a few used for Ethernet and USB OTG interface e uSD transflash interface and connector e 3 3V only powering e Onboard reset generation e Compact dimension 80 x 65 mm 16 bit data bus version 75 x 40 mm 32 bit data bus ver
35. n be downloaded in pdf format from the support page and is recommended to have printed out while reading this chapter The following subsections describe in more detail each part of the design 2 1 1 CPU The core part of the design is the NXP LPC2468 microcontroller It s an ARM7TDMI S CPU core with a lot of different peripheral units and on chip memory 512 KByte FLASH and 96 KByte SRAM There is also an external memory bus interface Page 1 of the schematic contains the CPU section of the design The microcontroller crystal frequency is 12 0000 MHz This frequency has been selected in order to allow maximum execution speed the PLL can generate an 72 MHz core clock from this as well as generating standard clock frequencies for the CAN and USB interfaces The on chip UART peripheral includes a fractional baud rate generator that allows standard baud rates to be generated with low frequency error Due to silicon errata the highest internal core clock frequency on initial chip revisions see errata for details was 48 MHz This corresponds to an internal PLL frequency of 288 MHz that is divided by 6 to get a 48 MHz clock for the USB interface Later revisions of the chip can run at full 72 MHz 288 MHz divided by 4 equals 72 MHz There is a 32 768 kHz crystal clock for the on chip real time clock peripheral unit or RTC for short The microcontroller can be placed in a very low power mode while the RTC operates and keeps track of time Power
36. n this so this needs to be changed manually It is common that all COM ports with low numbers are listed as occupied but test to change to a low number anyways Very often it s no problem at all to do this Advanced Settings for COM3 COM Port COMPorNumber a Number Setting USB Transfer Sizes Cancel Select lower settings to correct performance problems at low baud rates Select higher settings for faster performance Defaults Receive Bytes 4096 S Transmit Bytes 4096 S BM Options Miscellaneous Options Select lower settings to correct response problems Serial Enumerator Serial Printer Latency Timer msec 16 Cancel If Power Off Timeouts Event On Surprise Removal Set RTS On Close Minimum Read Timeout msec D Se Disable Modem Ctl At Startup Minimum Write Timeout msec 0 Ne Figure 15 Advanced USB Serial Port Properties Dialog Finally it s time to test if you have successfully installed and configured the USB Serial Port Start a terminal program Connect to the correct COM port with 38400 bits per second 8N1 no flow control Remember to not have the USB ISP jumpers inserted A message like below should be printed on the terminal Please note that the picture below is just an example The exact message will change for future program revisions Copyright 2009 Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 33 E Es 2233 bI blocks tt
37. neous on the LPC2468 OEM Board and the OEM Base Board Only one at a time can be used 2 1 11 Expansion Connectors The LPC2468 OEM Board integrated the core part of a typical LPC2468 board design with a reasonable large amount of external memories Almost all signals of LPC2468 are available on the two 100 pos 0 6mm pitch expansion connectors FX8C 100 from Hirose 2 1 12 Not Mounted Components on Top Side Page 6 of the schematic contains an interface to Bluetooth and WLAN modules from connectBlue that is only available on special order These components are not mounted on standard boards and this part of the schematic is not public 2 2 Memory Layout The external memory controller on the LPC2468 defines eight memory regions named CS0 CS1 CS2 CS3 DYCSO DYCS1 DYCS2 and DYCS3 Of these eight three memory areas are used by the LPC2468 OEM Board These are e CSO address range 0x8000 0000 0x80FF FFFF An external NOR FLASH 32 MBit 4 MByte in size is addressed e CS1 address range 0x8100 0000 0x81FF FFFF An external NAND FLASH 1 GBit 128 MByte in size is addressed e DYCSO address range 0xA000 0000 OxAFFF FFFF An external SDRAM 256 MBit 32 MByte in size is addressed Copyright 2011 Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 11 These three memory regions cannot be used by external devices CS2 and DYCS1 are however free for external use via the buffered memory interfac
38. ns to what part of the design they belong Board picture is from older revision of the board but all essential parts are identical MCIPWR Polarity J27 Top pos active low Bottom pos active high MCIDATO Select J47 Top pos P0 22 Bottom pos P1 6 ISP Fucntionality J33 in order from top to bottom P2 10 USB Serial Connect J30 J31 Left pos UART 0 Right pos to WLAN module CAN Select J34 4positions 2 left CAN 1 2 right CAN 2 RS232 UART J36 8 positions Connect RS232 interface to UART 1 RS232 UART J38 6 positions Connect WLAN interface to UART 1 QVGA Settings See separate description Enable JTAG J24 Analog Inputs J26 in order from left to right ADO 1 P0 24 ADO0 0 P0 23 VREF Ethernet PHY J23 in order from top to bottom Connect PD to P0 20 Connect IRQ to P2 11 NAND Busy J19 Connect busy output to P2 12 USB Device Host J41 J42 J44 J45 J46 To left device To right host DBUS EN J13 CS2 AND DYCS1 controls DBUS_EN Figure 2 OEM Base Board Basic Jumpers 3 2 1 USB VBUS Sense The polarity of the VBUS sense signal has changed between cpu revisions Normal position on rev is to invert the VBUS signal On rev A and rev B chips the VBUS signal is non inverted i e normal Inverted or normal polarity is selected with conne
39. nties with respect to the contents hereof and specifically disclaim any implied warranties or merchantability or fitness for any particular purpose Information in this publication is subject to change without notice and does not represent a commitment on the part of Embedded Artists AB Feedback We appreciate any feedback you may have for improvements on this document Please send your comments to support EmbeddedArtists com Trademarks All brand and product names mentioned herein are trademarks services marks registered trademarks or registered service marks of their respective owners and should be treated as such Copyright 2011 Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 3 Table of Contents 1 Introduction 5 1 1 Features 5 1 2 ESD Precaution 6 1 3 Code Read Protection 7 1 4 CE Assessment 7 1 5 Other Products from Embedded Artists 7 1 5 1 Design and Production Services 7 1 5 2 OEM Education QuickStart Boards and Kits T 2 LPC2468 OEM Board Design 8 2 1 1 CPU 8 2 1 2 Powering 8 2 1 3 Analog Inputs Outputs 8 2 1 4 Ethernet Interface 8 2 1 5 External Memories 9 2 1 6 External Memory Interface 9 2 1 7 USB OTG 9 2 1 8 Reset Generation 10 2 1 9 12C E2PROM 10 2 1 10 uSD transflash Connector 10 2 1 11 Expansion Connectors 10 2 1 12 Not Mounted Components on Top Side 10 2 2 Memory Layout 10 2 3 Usage of CPU Pins 11 2 4 LPC2468 OEM Board Mechanical Dimensions 12 2 5 Known Limitation of LPC2468 OEM
40. ntrol DBUS_EN P2 15 No special usage on OEM Base Board P2 16 No special usage on OEM Base Board P2 17 No special usage on OEM Base Board P2 19 No special usage on OEM Base Board P2 21 When used as DYCS1 can be used to control DBUS_EN P2 22 No special usage on OEM Base Board P2 23 No special usage on OEM Base Board P2 25 No special usage on OEM Base Board P2 26 No special usage on OEM Base Board P2 27 No special usage on OEM Base Board P2 28 No special usage on OEM Base Board P2 29 No special usage on OEM Base Board P2 30 No special usage on OEM Base Board P2 31 No special usage on OEM Base Board P3 0 P3 15 The 16 bit databus connects to the QVGA display add on module databus P3 16 Can be connected to RS232 interface or WLAN add on module P3 17 Can be connected to RS232 interface or WLAN add on module P3 18 Can be connected to RS232 interface or WLAN add on module P3 19 Can be connected to RS232 interface P3 20 Can be connected to RS232 interface or WLAN add on module P3 21 Can be connected to RS232 interface or WLAN add on module P3 22 Can be connected to RS232 interface P3 23 No special usage on OEM Base Board P3 24 No special usage on OEM Base Board P3 25 No special usage on OEM Base Board P3 26 No special usage on OEM Base Board P3 27 No special usage on OEM Base Board P3 28 Can be used to control backlight intensity of QVGA display add on module P3 29 No special usa
41. rfaces and connectors to the LPC2468 OEM Board The design can be viewed as a reference schematic for custom designs around the LPC2468 OEM Board The features of the OEM Base Board can be summarized as below e Connectors Two 100 pos 0 6mm pitch connectors for LPC2468 OEM Board Ethernet connector RJ45 MMC SD interface 8 connector JTAG connector Pads for ETM connector e Interfaces USB OTG interface 8 connector USB device interface amp connector USB host interface amp connector Full modem RS232 on UART 1 CAN interface amp connector e Power Power supply either via USB or external 9 15V DC e Expansion Color QVGA LCD expansion connector serial and parallel interface options Touch screen interface to QVGA LCD on v1 5 OEM Base Boards WLAN module IEEE802 11b g expansion connector e Other 5 push button keys four via I2C and one on P2 10 5LEDs four via 12C and one on P2 10 2 Analog inputs USB to serial bridge on UART 0 FT232R and ISP functionality Reset push button and LED 0 3F backup capacitor for VBAT power signal to LPC2468 OEM Board Can supply current for many days for the LPC2468 real time clock module Speaker output on v1 5 OEM Base Boards All OEM Board signals available on expansion connector pads 240x150 mm in size Copyright 2009 Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 16 3 1 Usage of CPU
42. sion Six layer PCB design for best noise immunity There is an accompanying OEM Base Board version Basic that can be used for initial prototyping work The features of the board are e Connectors 2x100 pos 0 6mm pitch connector for LPC2468 OEM Board Ethernet connector RJ45 MMC SD interface amp connector JTAG connector Copyright 2011 Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 6 Pads for ETM connector e Interfaces USB OTG interface amp connector USB device interface 8 connector USB host interface 8 connector Full modem RS232 on UART 1 CAN interface amp connector e Power Power supply either via USB or external 9 15V DC 0 3F capacitor backup power for RTC on LPC2468 e Expansion Color QVGA LCD expansion connector serial and parallel interface options Touch screen expansion connector to above display on v1 5 of OEM Base Board e Other 5 push button keys four via I2C and one on P2 10 5LEDs four via 12C and one on P2 10 2 Analog inputs USB to serial bridge on UART 0 FT232R and ISP functionality Reset push button and LED All OEM Board signals available on expansion connector pads Speaker output on v1 5 of OEM Base Board 240x150 mm in size 1 2 ESD Precaution Please note that the LPC2468 OEM Board and OEM Base Board Basic come without any case box and all components are exposed for finger touches
43. te directly with each other if they are on the same LAN e Ethernet network and is on the same IP subnet This means that the LPC2468 OEM Board must be on the same IP subnet as your PC An IP address starting with 192 168 0 x is a common IP subnet for many PCs If this does not match your PC either change the IP address of your PC or change the IP address of the LPC2468 OEM Board see description of this at the last section of this page Make sure your PC does not have the IP address 192 168 0 100 but any other IP address in the range 192 168 0 X where X is 1 99 101 254 will do Some valid IP addresses for your PC are for example 192 168 0 2 192 168 0 3 or 192 168 0 200 Now it s time for the first test Connect the Ethernet cable and power up the board Make sure the PC and the LPC2468 OEM Board are in the same IP subnets Copyright 2009 Embedded Artists AB LPC2468 Developer s Kit User s Guide Page 30 An easy way to test if Ethernet IP communication function properly is to ping the board From a command prompt window type ping 192 168 0 100 Note the green LEDs on the Ethernet connector of the OEM Base Board that flash every time an Ethernet frame is received You should be able to see the LED flash at the same rate as the ping packages are sent Other communication on your Ethernet network might make the LED flash much faster than this 4 4 FTDI USB Driver A USB driver must be installed on your PC computer in ord
44. www gnuarm com 10 An Introduction to the GNU Compiler and Linker by Bill Gatliff http www billgatliff com 11 LPC2000 Yahoo Group A discussion forum dedicated entirely to the Philips LPC2xxx series of microcontrollers http groups yahoo com group Ipc2000 12 The Insider s Guide to the NXP LPC2300 2400 Based Microcontrollers by Trevor Martin http www hitex co uk download docs Ipc2300 con reg download Ipc2300 book html Note that there can be newer versions of the documents than the ones linked to here Always check for the latest information version Copyright 2009 O Embedded Artists AB

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