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1. 0000 SROM nGCS0 Boot Internal SRAM 4KB 0x0000 0000 Net using NAND flash for boot ROM Using NAND flash for boot ROM The left drawing is the memory allocation diagram when the system is set to the Nor Flash boot mode with nGCS0 being set The right drawing is the memory allocation diagram when the system is set to the Nand Flash boot mode Note SFR Area is reserved for special registers nGCS0 will map its address space to different devices when the system boots in different modes When the system boots from the Nand Flash its 4K Bytes BootSram will be mapped to nGCS0 s address space When the system boots from the Nor Flash not the Nand Flash boot mode the Nor Flash which is connected to nGCSO will be mapped to nGCSO s address space Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems http Www arm9board net User s Mnaual for TE2440 SDRAM address space 0x30000000 0x34000000 1 5 2 On board Interfaces Interface Description J1 Audio Output Interface PHONE J3 Audio Input Interface MIC U4 LCD Touch Interface Camera Camera interface CN2 Standard 20pin JTAG interface J4 Power socket CN3 GPIO interface IDE Hard disk connector 1 5 3 Buttons Button Description SI RESET Reset button Black S6 S7 S8 S9 Four user
2. The folder named as bootloader contains the source code and object files of the bootloader Folder Linux contains kernel source code filesystem and some related tools for Linux 2 6 12 and Linux 2 6 28 Folder WinCE contains the WindowsCE BSP source code SDK test program and binaries for both WinCE5 0 and WinCE6 0 Folder ucos2 contains the source code and binaries of ucos2 operating system Drivers contains USB driver parallel port driver JLINK driver ActiveSync driver and USB RS232 driver for the PC Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual http www arm9board net To Schematics contains the schematic of the TE2440 II base board and layout of the core board Demos contains demonstration programs Tools contains some utility programs such as DNW H JTAG ActiveSync Datasheets contains datasheets for the major on board components and chips HardwareTest contains the source code and binaries for the hardware test program Manuals contains user manuals and operation instructions in PDF Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual http www arm9board net TE2440 1 3 Appearance 1 4 Hardware Res
3. dominant message delay free making CAN very suitable for real time prioritised communications systems During arbitration each transmitting node monitors the bus state and compares the received bit with the transmitted bit If a dominant bit is received when a recessive bit is transmitted then the node stops transmitting i e it lost arbitration Arbitration is performed during the transmission of the identifier field Each node starting to transmit at the same time sends an ID with dominant as binary O starting from the high bit As soon as their ID is a larger number lower priority they ll be sending 1 recessive and see 0 dominant so they back off At the end of ID transmission all nodes but one have backed off and the highest priority message gets through unimpeded Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual http www arm9board net TE2440 1 7 Board Support Packages Together with the TE2440 II single board computer we provide Board Support Packages for WinCE and Embedded Linux 1 7 1 Embedded Linux Kernel Linux 2 6 12 and Linux 2 6 28 Supported Filesystem cramfs ramfs etx2 fat32 nfs yaffs2 jffs2 Drivers included System interrupt and system clock driver Serial device driver Block device IDE hard disk SD card drivers Nand Flash driver Ethernet driver RTC driver USB Host d
4. reset chip JTAG Interface gt One 20pin Multi ICE JTAG interface supporting SDT2 51 ADS1 2 Power Supply gt _ 5V power supply with power switch and indicator Others gt Four user buttons Four user LEDs One PWM controlling buzzer One adjustable resistance connected to ADS pins for A D conversion One infrared receiver VV Y Y WV One expansion interface containing SPI GPIO and I2C etc Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual for http Www arm9board net TE2440 1 5 Hardware Resource Distribution 1 5 1 Address Space and Chip Selection The TE2440 II can be boot from either Nand Flash or NOR Flash The distribution of storage space is different when booting from each Flash as shown in the figure below OM 1 0 01 10 Boot Internal SRAM 4KB OM 1 0 00 Oe4000_0000 gt a SROMISDRAM SROM SDRAM 2MB 4MB 8MB 18M5 nGCS7 nGCS7 32MB 84MB 1 28M8 Refer t 0x3200_ 0000 gt mm Table 5 SROM SDRAM SROM SDRAM 2MBHMB 6MB 1 MB nGCS6 inGC56 32MB 04MB 1 28M8 0x2000_0000 gt SROM SROM nGC85 inGCS5 126MB 0x2200 0000 p SRON 128MB nGCS4 HADDR 29 0 Accessible Region 0x2000_0000 gt SROM SROM 3 nGCS3 nGCS3 GM 0x1900_0000 p SROM SROM nGCS2 inGCS2 128MB Ox1000_0000 gt SROM SROM nGCS1 inGC51 128MB 0800
5. PG12 EINT20 GPG14 EINT22 GPG15 EINT23 14 CLKOUTO CLKOUTI 16 GPB5 GPB9 18 GPB10 NRSTOUT GPA21 20 GND Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual http www arm9board net TE2440 1 6 7 SD card slot The SD card slot on the TE2440 II supports up to 2GB SD card Schematic of the SD card slot is shown as below i i EINT16 GPG8 i l i 1 S 1 a P L 1 E tox S Er o 1 8 is pa mn pu SD CARD SOCKET SKT SD MMC Standard Type g i 1 1 E EINT18 NCD_SD 11 Nco 8 WP_SD we 1 L 1 i SDDATAI 8 pati SDDATAO Z DATO PAD2 i __ H VSS2 i soek gt CLK 1 1 4 VDD i yssi PADI 8 SDCMD gt 2 cmp 1 sppaTa3 S 1 CD DAT3 1 I 1 sovata gt 21pAT2 a L 71 SD CARD a L 7 7 s 5 WW RY About SD card Secure Digital SD is a non volatile memory card format developed by Panasonic SanDisk and Toshiba on the basis of MultiMedia Card MMC format for use in portable devices Currently it is widely used in digital cameras digital camcorders handheld computers netbook computers PDAs media players mobile phones GPS receivers and video games Standard SD card capacities
6. Witech Embedded Systems User s Mnaual http Www arm9board net TE2440 TE2440 II Users Manual Part 1 Introduction Copyright 2010 2011 http www witecharm net Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual http www arm9board net TE2440 COPYRIGHT STATEMENT Contents content being images text programs and scripts of this manual is copyright Witech Systems Ltd All rights expressly reserved Any content of the manual printed or downloaded may not be sold licensed transferred copied or reproduced in whole or in part in any manner or in or on any media to any person without the prior written consent of Witech Systems Ltd including but not limited to transmission by any method storage in any medium system or program display in any form performance hire lease rental or loan Requests for permission to reproduce material from this manual should be addressed to Witech Systems Ltd Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual http www arm9board net TE2440 TE2440 II is an updated version of TE2440 a Witech ARM9 embedded SBC Single Board Computer based on the Samsung S3C2440A with full featured MMU Memory Management Unit TE2440 II SBC consists of a 6 layer core bo
7. ansion Interface 74 2 Pin Function Pin Function 1 NRESET 2 GND 3 LDATA7 4 LDATA9 5 LDATA6 6 LDATA9 7 LDATA5 8 LDATA10 9 LDATA4 10 LDATA11 11 LDATA3 12 LDATA12 13 LDATA2 14 LDATA13 15 LDATA1 16 LDATA14 Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual for http www arm9board net TE2440 17 LDATAO 18 LDATA15 NC as default can be 19 GND 20 connected to NGSO NC as default can be 21 22 GND connected to NGSO 23 IDE_WE 24 GND 25 IDE_OE 26 GND 27 GPB8 28 GND 29 VDD5V 30 GND 31 EINT1 32 GND NC as default can be 33 ADDR2 34 connected to ADDO 35 ADDRI 36 ADDR3 37 ADDR4 38 ADDR5 39 VDD 40 GND 1 6 6 GPIO Interface Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems http Www arm9board net NRSTOUT GPA21 AIN1 AIN2 AIN3 GPG2 EINT10 SCLKO GPG5 EINT13 GPG12 EINT20 GPG7 EINT15 SCLK1 NGCS7 GPG13 EINT21 GPG14 EINT22 GPG15 EINT23 CLKOUTO CLKOUT1 VDD33V GPB7 GPB10 User s Mnaual CON3 or TE2440 Pin Function Function GPE11 GPE12 GPE13 GPG3 EINT11 GPG2 EINT 10 GPGS EINT 13 GPG6 EINT 14 GPG7 EINT 15 GPG11 EINT19 GPG13 EINT21 10 12 G
8. ard and a 4 layer base board such structure not only makes the TE2440 II more flexible but also brings the SBC much more stable and reliable performance Together with the TE2440 II we provide BSPs Board Support Packages for Embedded Linux and WindowsCE including basic drivers for all the components on the board and illustrating programs which we believe can help the users in understanding the ARM architecture and shortening their development circle Here are some dos and don ts for using the TE2440 II 1 After opening the TE2440 II package please check and make sure that the following components are all enclosed 1 x TE2440 II board 1 X serial port cable 1 x USB cable 1 x Ethernet cable 1 x JTAG wiggler with JTAG cable 1 x 5V power supply 1x DVD After purchasing the TE2440 II please do inform us with your purchase information including your name registered email address purchase date invoice number and board ID to validate your membership for downloading the latest data from our website When using the SBC for the first time please do read and follow the user manual to prevent unnecessary troubles and damages Every time before powering on the SBC please touch anyone of the metallic interface with your fingers to unload the Electrostatic Do not touch the chips with your fingers Before physically operating the SBC please switch the power off Hot plugging is not supported except on the USB and Ethernet interfa
9. buttons Red 1 5 4 LEDs LED Description LED1 LED2 LED3 LED4 T O indicator LED5 5V power status indicator LED6 LED7 Ethernet status indicators LED8 Hard disk status indicator LED9 Core board 3 3V power supply indicator 1 5 5 Jumpers Jumper Description J2 on the base board LCD power voltage selector When pinl and pin2 are connected the LCD voltage is selected as 5V When pin2 and pin3 are connected the LCD voltage is selected as 3 3V J2 on the core board NOR Flash chip selection selector When pin0 is connected NGCSO is selected as chip selection When pinl is connected NGCS1 is selected as chip selection J5 on the core board Boot mode selector When J5 is connected OM 1 0 00 the system boots from Nand Flash When J5 is disconnected OM 1 0 01 the system boots from NOR Flash Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual for http Www arm9board net TE2440 1 6 Major Hardwares 1 6 1 Storage Devices Storage devices on the TE2440 II include SDRAM and Flashes consists of two 32MB Samsung SDRAM chips one 256MB Nand Flash chips In order to improve the communication efficiency with the CPU the 32bit SDRAM system consists of two half word SDRAM chips Considering the actual needs of users the SDRAM is designed as compatible supporting 32MB or 64MB single ch
10. ces We provide for the TE2440 II 12 weeks guarantee in the precondition of non artificial damage and 24 weeks technical support Editor Witech Co Ltd Tel 86 871 5899845 Fax 86 87 1 5899845 Email info arm9board net Website http www arm9board net Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual http www arm9board net To Chapter One Hardware Introduction The TE2440 II Single Board Computer consists of a 6 layer core board and a 4 layer base board Layout and wiring on the TE2440 II is meticulously designed by professionals to ensure stable performance which together with a variety of interfaces connectors and ports makes the TE2440 II a reliable device for the development of hand held device consumer electronics and Industrial control equipment 1 1 Components in the Package Standard Components 1 1 x TE2440 II board 2 1x serial port cable 3 1 x USB cable 4 1x Ethernet cable 5 1 x JTAG wiggler with JTAG cable 6 lx 5V power supply 7 1xDVD Optional Components 1 _ 3 5 TFT LCD with touch panel and stylus 2 _ 5 7 TFT LCD with touch panel and stylus 3 _ 7 TFT LCD with touch panel and stylus 4 OV9650 CMOS camera 5 USB camera 6 WIFI module 1 2 DVD contents The DVD includes some documents and development resources for the TE2440 II SBC In the DVD
11. ebugging Schematic of JTAG interface is shown in the figure below VDD33V NRESET y JTAG Multi ICE Connect Reset circuit Specialized reset chip is used on the TE2440 II to implement reset circuit In order to ensure reliable reset operation the system reset signal nREST keep low power level for 4 clock cycle Once an external reset signal is received by the CPU it will turn the CPU reset signal to low power level and keep for 128 clock cycle Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual http www arm9board net TE2440 J2 C56 10uF 16V 100nF Copyright reservedO Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual http www arm9board net W P Pin Function Pin Function 1 VCC 2 VCC 3 VCC 4 GND 5 NRESET 6 VDO i VDI 8 VD2 9 VD3 10 VD4 11 VD5 12 VD6 13 VD7 14 VD8 15 VD9 16 VD10 17 VDl 18 GND 19 VD12 20 VD13 21 VD14 22 VD15 23 VD16 24 VD17 25 VD18 26 VD19 27 VD20 28 VD21 29 VD22 30 VD23 31 GND 32 LCD_P0 33 LCDVF 34 LCDVF1 35 LCDVF 36 VM 37 VFRAM 38 VLINE 39 VCLK 40 LEND 41 GPB1 42 GND 43 TSXM 44 TSXP 45 NC 46 GND 47 TSYM 48 TSYP 49 NC 50 GND When LCD controlling signals are connected to matched resis
12. have a maximum of 2 GB With a physical profile of 24 mm x 32 mm x 2 1 mm the new card provided both DRM up to the SDMI standard and a high memory density for the time 1 6 8 IIS Audio I O Interface IIS also known as Inter IC Sound Integrated Interchip Sound or Is is an electrical serial bus interface standard used for connecting digital audio devices together It is most commonly used to carry PCM information between the CD transport and the DAC in a CD player As shown in the schematic below on the TE2440 II the IIS Bus is connected to the PHILIPS audio digital signal decoder UDA1341TS and then lead out the MIC audio input channel and SPEAKER audio output channel The HS interface on the S3C2440X01 micro controller is connected to the BCK UWS DATAI SYSCLK L3 bus on the UDA1341TS works only when the microcontroller inputs it includes L3DATA L3MODE and L3CLOKE respectively the microcontroller interface data microcontroller interface mode and microcontroller interface clock via which the microcontroller is able to configure the DSP Digital Signal Processing parameters and system controlling parameters Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual http Www arm9board net TE2440 ws VOUTR DATAI YOUTL DATAO BCK DDATA L3MODE DCLOKE SYSCLE 1 6 9 Camera Interface A 20 pin 2 0mm pitch connector
13. ht reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual http www arm9board net TE2440 1 6 16 CAN Bus Interface in Q o gt S 5 E ul 3 R3 22r TXCAN RXCAN e GPE11 GPE12 GPE13 GPG3 EINT11 Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual http www arm9board net TE2440 MCP2551 LINK2 VDD5V About CAN Bus CAN bus short for Controller area network is a vehicle bus standard designed to allow microcontrollers and devices to communicate with each other within a vehicle without a host computer CAN is a message based protocol designed specifically for automotive applications but now also used in other areas such as industrial automation and medical eguipment CAN features an automatic arbitration free transmission A CAN message that is transmitted with highest priority will win the arbitration and the node transmitting the lower priority message will sense this and back off and wait This is achieved by CAN transmitting data through a binary model of dominant bits and recessive bits where dominant is a logical 0 and recessive is a logical 1 This means open collector or wired or physical implementation of the bus but since dominant is O this is sometimes referred to as wired AND If
14. ip SDRAM controlled by the two resistances shown in the figure below As shown in the figure for using 32MB SDRAM we should connect the pin2 and pin1 on the R32 with 22 9 resistance and also connect the pin2 and pin3 on R33 with 229 resistance for using 64MB SDRAM we should connect the pin3 and pin2 on the R32 with 229 resistance and also connect the pin1 and pin2 on R33 with 22 9 resistance ADDR25 3 2 BAO ADDR24 1 R32 ADDR25 3 a a BAL ADDR26 1 R33 HASSE RIDE TOPS CHIR 1 6 2 JTAG and Reset Logic a What is JTAG JTAG Joint Text Action Group was a standard for testing PCB and integrated circuit formed in 1985 in 1990 it became an IEEE standard as IEEE 1149 1 1990 it was used for Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual http www arm9board net TE2440 boundary scanning and fault detecting on hardware circuits with JTAG interfaced ICs Normally a JTAG interface should include the following pins 1 TDI Test Data In TDO Test Data Out TCK Test Clock TMS Test Mode Select TRST Test Reset optional ee GE ee tS JTAG was initially formed to test ICs in nowadays JTAG interface is also used a lot for ISP In System Programming to program Flash and etc b JTAG on the TE2440 II JTAG interface on the TE2440 II SBC is a standard 20 pin interface supports Flash programming and d
15. is implemented on the TE2440 II as camera connector Schematic of the camera interface is shown in the figure below VDD5V poe nesa LM1117 CT1 8 CAMRESET VOD 18V ZL ao TL cy ca T me T adu voo33v GND CAM POWER CMOS CAM CG GC CC SS Sd 1 1 6 10 Serial Port Circuit There are two RS232 COMO and COM1 and one RS485 COM2 serial ports on the TE2440 II Schematic of COMO is as shown below Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual http Www arm9board net TE2440 VDD5V Schematic of COM1 is as below VDD5V a 3 a gt My y Oe vo 45 1 eI Oc 3 Ci VCC Oc C1 V 4 5 C2 V C2 GND TXD1 gt HITIN TIO i T20 T g Oe wi La And the figure below shows the schematic of COM2 RS485 Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual or http Www arm9board net TE2440 NCTS1 RXD2 y GPG11 EINT19 NRTS1 TXD2 Fi 485 1 6 11 USB Interfaces There are one USB Host interface and one USB Device interface on the TE2440 II Schematic of USB Host interface is shown in the figure And the figure below shows the circuits on the USB Device interface r L L L L r 5 z I 8 USE Dewoe EDN SOCKET p DPL g 1 l
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17. one node transmits a dominant bit and another node transmits a recessive bit then the dominant bit wins a logical AND between the two Truth tables for dominant recessive and logical AND Bus state with two nodes transmitting Logical AND dominant recessive 0 1 dominant dominant dominant 0 0 0 recessive dominant recessive oM So if you are transmitting a recessive bit and someone sends a dominant bit you see a Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual http www arm9board net TE2440 dominant bit and you know there was a collision All other collisions are invisible A dominant bit is asserted by creating a voltage across the wires while a recessive bit is simply not asserted on the bus If any node sets a voltage difference all nodes will see it Thus there is no delay to the higher priority messages and the node transmitting the lower priority message automatically attempts to re transmit 6 bit clocks after the end of the dominant message When used with a differential bus a Carrier Sense Multiple Access Bitwise Arbitration CSMA BA scheme is often implemented if two or more devices start transmitting at the same time there is a priority based arbitration scheme to decide which one will be granted permission to continue transmitting The CAN solution to this is prioritised arbitration and for the
18. ources CPU Samsung S3C2440A microcontroller running 400MHz RAM gt 64MB SDRAM Flash gt 4MB NOR Flash gt 128MB Nand Flash using K9F1208 Serial Ports gt Two 5 wire RS232 ports bard rate 115200bps One RS485 interface Ethernet Ports gt One 10M Ethernet with connection and transmission indicator using CS890003 gt One 100M Ethernet with connection and transmission indicator using DM9000 USB Interfaces gt One USB1 1 Host gt One USB1 1 Device Audio Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual http www arm9board net TE2440 gt One stereo audio output socket for earphone or speaker using IIS interface chip UDA1341 Storage Interfaces gt One SD card slot gt One IDE connector can be used for connecting hard disk or as Bus expansion interface LCD amp Touch Interface gt On board 4 wire resistive touch screen interface One 50 pin LCD connector gt Support black and white 4 level grayscale 16 level grayscale 256 color 4096 color STN LCD gt _ 256K color 320x240 3 5 inch TFT LCD with touch panel gt On board 3 3V 5V power output interface for variety LCD models VGA TV Interface gt Supporting 800x600 VGA TV output Camera connector gt One 20p 2 0mm pitch camera connector Clock source gt Internal real time clock Reset Circuit gt One reset button specific
19. river LCD driver amp amp y AC A AS A Touch screen driver Busybox commands cat chmod discard echo flashfsd flashwrite free genhtml hostname init kill loader ls mkdir mount ps reboot rm smanaged sysconf yes insmod lsmod rmmod Graphical Interface Qtopia provided as source code Other GUIs such as MIZI microwindows minigui and etc are also supported Ethernet service web server ftp telnet Applications MP3 player and etc Ethernet protocol complete TCP IP 1 7 2 WinCE Version WindowsCE 5 0 and WinCE6 0 R3 Drivers v System interrupt and system clock driver v Serial device driver v _ Block device SD card drivers v Nand Flash driver v Ethernet driver v RTC driver v USB Host driver v USB Slave _ LCD driver Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual http www arm9board net TE2440 Touch screen driver VGA driver TV driver CAN BUS driver LED BELL driver Temperature sensor driver ADC driver CMOS camera driver Ethernet protocols standard IPV4 protocols including TCP IP UDP SMTP etc LANAA A Display supporting LCD VGA TV displaying Applications IE MediaPlayer ActiveSync MFC and NET2 0 supported Other WinCE standard functions Copyright reserved Witech Co Ltd Website http www arm9board net Email inf
20. t m a gt EINT17 GPG9 Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual http www arm9board net TE2440 1 6 12 User buttons and User LEDs Four buttons and four LEDs are reserved on the TE2440 II for the users The following table shows the I O ports that the buttons and LEDs are connected Button VO S6 EINTO GPFO0 S7 EINT2 GPF2 S8 GPB5 S9 GPB6 LED VO LED1 EINT3 GPF3 LED2 EINT4 GPF4 LED3 EINT5 GPF5 LED4 EINT6 GPF4 Schematics of the user buttons and LEDs are shown in the figures below buttons NT2 GPF2 y GP 55 nl if s Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual http www arm9board net TE2440 W L R96 10K EINT3 GPF3 EINT4 GPF4 EINT5 GPF5 EINT6 GPF6 SMD TYPE GREEN 1 6 13 Infrared Receiver VDDSV gt GPB9 Infrared Receiver Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual for http Www arm9board net TE2440 1 6 14 Temperature Sensor VDD33V _ gt EINT8 GPGO VDD33V DS18B20 1 6 15 EEPROM 24C02 VDD33V gt 7 TICSCL IICSDA Copyrig
21. tance we can transmit data to a greater distance Among the LCD controlling signals TSXP and TSXM are connected to pins in Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual http www arm9board net TE2440 the X group on the 4 wire resistive touch screen TSYP and TSYM are connected to the pins in the Y group As shown in the figure below AIN6 TSXM NNN 5 I TSXM O AIN7 TSXP 5 i ks a hl 1000pF AIN4 TSYM y NNCL 5 i TSYM g AINS TSYP 5 T7 TSYP c4 J 1000pF Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual for http Www arm9board net TE2440 1 6 4 Ethernet Interfaces a 10M Ethernet circuit Schematic of the 10M Ethernet circuit is as shown in the figure below zza sm Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual http Www arm9board net o b 100M Ethernet interface using DM9000 Ho gt gt we wa gt Ngy Copyright reserved Witech Co Ltd Website http www arm9board net Email info arm9board net Tel 86 871 5899845 Witech Embedded Systems User s Mnaual http www arm9board net TE2440 1 6 5 IDE also Bus exp
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