Jawaharlal Nehru Engineering College
Contents
1. J UARTO JI 1652 LCD EDU ARM7 2148 PC ee Serial Cable Programm Program is given along with the compiler software Source Code include lt Philips LPC2148 h gt include lod h void main Ledinit DisplayRow 1 JNEC DisplayRow 2 Aurangabad while 1 9 Function LCD include lt Philips LPC2148 h gt include lod h void SmallDelay void int i for i 0 i lt 100 i void LedCmd1 unsigned char cmd if cmd 8 0x01 IOOSET 1 lt lt 15 else IOOCLR 1 lt lt 15 if cmd 8 0x02 IOOSET 15517 else IOOCLR 12317 if cmd amp 0x04 IOOSET 1 lt lt 22 else IOOCLR 1 lt lt 22 if cmd amp 0x08 IOOSET 1 lt lt 30 else IOOCLR 1 lt lt 30 IO1CLR 0x03000000 SmallDelay IO1SET 0x01000000 SmallDelay IO1CLR 0x01000000 SmallDelay void LedDat1 unsigned char dat if dat amp 0x01 IOOSET 1 lt lt 15 else IOOCLR 1 lt lt 15 if dat amp 0x02 IOOSET 1 lt lt 17 else IOOCLR 1 lt lt 17 if dat amp 0x04 IOOSET 1 lt lt 22 else IOOCLR 1 lt lt 22 if dat amp 0x08 IOOSET 1 lt lt 30 else IOOCLR 1 lt lt 30 IO1SET 0x02000000 SmallDelay IO1CLR 0x01000000 SmallDelay IO1SET 0x01000000 SmallDelay IO1CLR 0x01000000 SmallDelay void Delay250 void int kj II make rs and en low enable en2. Output You can see stepper motor moving in particular direction and corresponding phase changes you can observed LED s D9 D12 25 Experiment No 8 Aim Write a program to interface buzzer with LPC2148 Apparatus EDU ARM 2148 with buzzer Trainer kit SCRAM PC Theory Write theory related to relay interfacing Block Diagram PC We l Serial Cable Programme include lt Philips LPC2148 h gt include uartO h include TYPE h unsigned int i void main PINSELO 0x00000000 PINSEL1 0x00000000 IOODIR 0x023C3C00 UARTO_Init while 1 printf Press any key n getchar JL buzzer EDU ARM7 2148 26 for i 0 i lt 30000 i delay 9 IOOSET 0x023C3C00 making these pin as 1 for i 0 i lt 30000 i 9 Iprintf press any key n getchar IOOCLR 0x023C3C00 clearing the pins as 0 for i 0 i lt 30000 i 0 1 Output Thus we got output as buzzer sound 27 4 Quiz on the subject 1 Write short notes on a Priority Scheduling b Multitasking c Seamthort 5 Conduction of Viva Voce Examination Teacher should conduct oral exams of student with full preparation Normally the objective questions with guesses are to be avoided To make it meaningful the questions should be such that depth of the students in the subject is tested Oral examinations are to be conducted in cordial environme
3. II disable en make RS high disable en enable en II disable en 20 j 200 for k 0 k lt 100 k void DelayMs int n ee int k fork 0 k lt n k Delay250 Delay250 void LedCmd unsigned char cmd LedCmd1 cmd gt gt 4 LedCmd1 cmd Delay250 Delay250 void LedDat unsigned char dat LedDat1 dat gt gt 4 LedDatt dat Delay250 Delay250 void Ledinit void IO1DIR 0x03000000 IO1CLR 0x03000000 IOODIR 0x40428000 IOOCLR 0x40428000 DelayMs 6 LedCmd1 0x03 DelayMs 6 LedCmd1 0x03 Delay250 LedCmd1 0x03 Delay250 LedCmd1 0x02 Delay250 LedCmd 0x28 LedCmd 0x08 LedCmd 0x0c LedCmd 0x06 21 void DisplayRov int rovv char str P pass pointer to 16 character string displayes the message on line1 or line2 of LCD depending on whether row is 1 or 2 int k if row 1 LedCmd 0x80 else LedCmd 0xc0 for k 0 k lt 16 k if str k LedDat str k else break while k lt 16 LedDat k Output You can see the message Hello World on LCD If required reset the board 22 Experiment No 6 Aim Write a program to Blink LED s present on EDU ARM 2148 Apparatus EDU ARM 2148 Trainer kit SCRAM PC Theory Write theory related to LED interfacing using ARM Block Diagram Ji 8 General Purpose L
4. in 26 d 384 Matrix ment Bebmeanze SM mao 107 Test Point k frDaS Connector BO baced Seven segments Below figure shows the locations of different switches and jumpers on the EDU ARM7 2148 board switch to Tum S1 switch to Comeet USB Device to LPC2148 JPL Connect Tumper ta Enable Graphics LCD ni Pr Connect Enable LEDs S5 switch to connect POT and Lm35 to ADCO 1 and ADcoz of Leens 56 switch to 7 Switeh to S4 Switch to Connect Buzzer Connect SPL Come PC DACITPTand EEPROM to Peripherals lo ENTO to zere LPC2148 Lec2148 B Switches Details S1 Turn ON this switch to connect USB device connector to USB lines of LPC2148 2 Turn ON this switch to connect UART1 connector to UART1 lines TxD1 P0 8 and RxD1 P0 9 of LPC2148 3 Mode selection switch The LPC21xx micro controllers include on chip flash for storing user program and non volatile data The LPC2148 have 512RBytes flash This flash is In System Programmable ISP The LPC21xx micro controllers have a built in boot load program Upon power on this bootload program takes control it passes control to the user program if pin P0 14 is HIGH and some other conditions are satisfied Please refer to the LPC21xx data sheet for further details On the EDU ARM7 2148 board the P0 14 pin is made available on this S3 switch Turn ON this switch to control the Mode ISP mode or Run mode by Flash Magic S4 Turn ON this switch to connect Seven Segments RTC D
5. 2148 board to COM1 or COM2 of a PC using the serial communication cable supplied with the board b Keep S3 switch in ON position You can keep S3 switch continuously ON Switch ON power to the EDU ARM7 2148 c Do proper settings in Flash Magic COM Port COM1 if other choose it Baud Rate 38400 Device LPC2148 Interface None ISP Enable Erase blocks used by Hex File Browse the file which you want to download and click on Start button d Flash Magic will download the program Wait till Finished comes e After downloading Flash Magic automatically resets the EDU ARM7 2148 board and program executes You can see output according to the program f If again you want to Reset the board then Switch OFF and ON the power to the EDU ARM7 2148 board You can see output according to the program Note Flash Magic can be used to download the program into other Philips Microcontrollers also See the list in Flash Magic itself Study experiment 3 Aim Study of JTAG Debugger Apparatus t EDU ARM 2148 Trainer kit Theory i A JTAG Cable for Debugging 1 Type SJT S Serial JTAG Cable 2 Contents The JTAG Cable consists of following parts Dongle a small box with connectors on both ends Cable The dongle consists of some electronic circuit for interfacing the JTAG port of target processor to the host computer The cable is a bunch of wires to connect the dongle with the JTAG port of target 3
6. 7 The PROG1 C file created by the IDE will be an empty file containing only the frame of main function You may write the desired program statements in this file or other files that you may have added to the project When done select Save from File menu If you have modified more than one source files then select Save All from File menu 8 From the Compile menu select Build This will invoke the Compiler to compile the file PROG1 C and further assuming no errors invoke the linker to create the HEX file If there are any errors or warnings during the process of compiling assembling or linking then those will be displayed in the output window below the editor window If there are errors then you may correct those by making appropriate changes to the program select Save 13 from File menu to save the changes and then again select Build from Compile menu Repeat this until there are no errors 9 You may inspect contents of the folder where your project files reside When there are no errors and build has completed successfully and then you will see a filename with same name as the project name and extension HEX in above example PROG1 HEX This is the file that you will need to use to program your micro controller C Downloading amp Running Programs The LPC2148 micro controllers include on chip flash for storing user program and non volatile data LPC2148 on EDU ARM7 2148 have 512KBytes flash This flash is In System Pr
7. Power Supply Requirements The JTAG cable draws power from the target board Thus it does not require a separate power source 4 Connecting JTAG Cable SJT S There is a DB9 female connector on one end of the dongle This directly mates with the PC COM port which has a DB9 male connector or you can connect yellow color serial cable supplied with SJT S between DB9 female connector on one end of the dongle and PC COM port vvhich has a DB9 male connector The other end of the dongle has DB25 female connector There is a DB25 male connector on one end of the cable These DB25 female and DB25 male connectors are designed to mate with each other directly The other end of the cable has a 20 pin header This should be connected to the JTAG connector of the target board CAUTION The JTAG Cable must not be connected or dis connected when power is applied to the target board Turn off power to the target board connect the JTAG Cable and then you may turn on power to the target board Connecting the JTAG Cable with incorrect polarity orientation may permanently damage the EDUARMT 2148 board and or the JTAG Cable It will also make the warranty void for both the products B Verifying correct cable connection When the JTAG Cable is correctly connected to PC as well as the target board it serves as a link between the JTAG port of target processor and the PC This link is used by SPJ SCARM software Tools e g Debugger for ARM microcontroller
8. etc In the File name field type the name of the project vvithout any extension For example you may type PROG1 Then click on the Open button 4 The action in the previous step will display the Project Settings dialog window This dialog window has 3 different parts named Compiler Options Linker Options and Source Files Any of these 3 parts can be displayed by clicking on the corresponding name near the top of this dialog window Currently the Compiler Options will be automatically displayed If the target micro controller must be a member of ARM family is known you may select the appropriate Manufacturer from the list and then select the appropriate micro controller from the device list If the target micro controller is not known or if you cannot find it in the list then you may simply select Philips as the manufacturer and LPC2148 as the micro controller 5 Click on Linker Options to display that part of the dialog window In this window you will see a list of 8 Memory Banks with names such as Memory 1 Memory 2 and so on In your target hardware there may be none or 1 or more number of contiguous memory blocks connected to the ARM micro controller Check the appropriate number of memory banks to reflect the target s memory blocks For each checked memory bank specify memory start address in Hexadecimal and memory block size in decimal Size maybe speci
9. EDs PC e EDU ARM7 2148 Serial Cable Programs Program is given along with the compiler software Source Code include lt Philips LPC2148 h gt include lt stdio h gt void main PINSELO 0x00000005 InitUartO printf Hello World in while 1 putchar getchar Output You can see the message Hello World on LCD If required reset the board 23 Experiment No 7 Aim Write a program to interface Stepper motor Apparatus EDUARM2148 with stepper motor Trainer kit SCRAM PC Theory Write theory related to stepper motor interfacing Block Diagram Programm Program is given along with the compiler software Source Code include lt Philips LPC2148 h gt define PHASEA 0x00002400 define PHASEB 0x00001400 define PHASEC 0x00001800 define PHASED 0x00002800 unsigned int delay void main PINSELO 0x00000000 PINSEL1 0x00000000 IOODIR 0x003C3C00 IOOSET 0x003C0000 PINSEL2 0x00000000 NO1DIR 0x00000000 while 1 IOOSET PHASEA IOOCLR PHASEA amp 0x00003C00 for delay 0 delay lt 30000 delay IOOSET PHASEB IOOCLR PHASEB amp 0x00003C00 for delay 0 delay lt 30000 delay IOOSET PHASEC 24 IOOCLR PHASEC 8 0x00003C00 for delay 0 delay lt 30000 delay IOOSET PHASED IOOCLR PHASED amp 0x00003C00 for delay 0 delay lt 30000 delay
10. GND B P127 TDO 14 GND 15 NRST 16 GND 17 GND 18 GND 19 GND 20 GND J7 This is 26 pin dual line headers It brings out I O and most of the pins of the LPC21xx micro controller Further 5V and GND are also made available on these connectors These connectors are intended for use to connect external peripherals The pin signal details of J7 are as below Pin Signal name Pin Signal name 1 PL 16 2 P117 3 PLIS 4 P119 5 P0 28 6 P0 29 pi P0 30 8 P031 9 P0 10 10 P0 11 11 PO 12 12 P0 13 13 P0 14 14 P0 15 15 P0 16 16 P0 17 17 PLIS 18 P119 19 P1 25 20 P1 24 21 P1 23 22 P1 22 23 PL2I 24 P1 20 25 5V 26 GND Study experiment 2 Aim t Study of IDE overview Project creation downloading amp debugging Apparatus t EDU ARM 2148 Trainer kit Theory i A SCARM Installation As a part of the SCARM software package you should have received a CDROM Please insert it into the CD ROM drive and run SETUP EXE from it Once you start the SETUP program follow the instructions on the screen to complete the installation The setup program will Copy the required files to your hard disk If there are any compressed files un compress them Create a program group for SCARM Once you have successfully installed the software on your hard disk you can run it by clicking on Start Programs SPJ SCARM SIDEARM However we recommend that you go through this user s
11. Javvaharlal Nehru Engineering College Laboratory Manual EMBEDDED SYSTEMS For BE ECT Manual made by Prof A R Salunke Prof C B Rasar Author JNEC Aurangabad Jawaharlal Nehru Engineering College Technical Document This technical document is a series of Laboratory manuals of Electronics amp Telecommunication and Industrial Electronics and is a certified document of Jawaharlal Nehru Engineering College The care has been taken to make the document error free but still if any error is found kindly bring it to the notice of subject teacher and HOD Technical document No ECT IE Techdoc 21stOctober2009 Recommended by HOD Approved by Principal Copies 1 Departmental Library 2 Laboratory 3 HOD 4 Principal PREFACE It is my great pleasure to present this laboratory manual for final year engineering students for the subject of Embedded Systems keeping in view the vast coverage required for visualization of concepts of basic programming As a student many of you may be wondering with some of the questions in your mind regarding the subject and exactly that has been tried to answer through this manual Faculty members are also advised that covering these aspects in initial stage itself will greatly relieve them in future as much of the load will be taken care by the enthusiastic energies of the students once they are conceptually clear Students are advised to thoroughly go through this manual rathe
12. S1307 and EEPROM AT24C512 to 12C lines SCLO P0 2 and SDAO PO 3 of LPC2148 S5 Turn ON this switch to connect POT and LM35 to ADC0 1 P0 28 and ADCO 2 P0 29 of LPC2148 S6 Turn ON this switch to connect Buzzer DAC TP7 and External Interrupt to ACOut P0 25 and EINTO P0 16 of LPC2148 S7 Turn ON this switch to connect SPI EEPROM AT25256 to SPI lines SCKO P0 4 MISO0 P0 5 MOSIO P0 6 and CS P0 7 of LPC2148 C Connector Details UARTO This is a DB9 female connector used for RS232 serial communication vvith the PC Pin 2 UARTO RS232 TxD output of mC Pin 3 UARTO RS232 RxD input to mC Pin 4 S232 DTR Pin 5 Ground Pin 7 RS232 RTS All other pins of J1 UARTO are unused UART1 This is a DB9 female connector used for RS232 serial communication with the PC Pin 2 UART1 RS232 TxD output of mC Pin 3 UART1 RS232 RxD input to mC Pin 5 Ground 16x2 LCD This is a 16 pin single line connector designed for connection to standard text LCD modules The pin signal correspondence is designed to be matching with that required by such LCD modules Pin 1 GND Pin 2 5V Pin 3 Vicd Pin 4 P1 25 Used as RS of LCD Pin 5 GND Pin 6 P1 24 Used as EN of LCD Pin 7 to 10 No Connection Pin 11 P0 15 Used as D4 of LCD Pin 12 P0 17 Used as D5 of LCD Pin 13 P0 22 Used as D6 of LCD Pin 14 P0 30 Used as D7 of LCD Pin 15 Backlighting Pin 16 GND 128x64 Graphics LCD Thi
13. TAL_FREQUENCY_IN_HZ since VPBDIV 0x01 dl define DIVISOR PCLK 16 DESIRED_BAUDRATE void InitUartO void P UOLCR UARTO Line Control Register 0x83 enable Divisor Latch access set 8 bit vvord length 1 stop bit no parity disable break transmission di UOLCR 0x83 VPBDIV VPB bus clock divider 0x01 PCLK processor clock VPBDIV 0x01 UODLL UARTO Divisor Latch LSB ka A UODLL DIVISOR8OXFF UODLM UARTO Divisor Latch MSB UODLM DIVISOR gt gt 8 UOLCR UARTO Line Control Register 0x03 same as above but disable Divisor Latch access UOLCR 0x03 UOFCR UARTO FIFO Control Register 0x05 Clear Tx FIFO and enable Rx and Tx FIFOs UOFCR 0x05 char putchar char ch lwait until Transmit Holding Register is empty while UOLSR amp 0x20 then store to Transmit Holding Register UOTHR r hwait until Transmit Holding Register is empty while UOLSR amp 0x20 then store to Transmit Holding Register UOTHR ch return ch char getchar void char ch INvait until there s a character to be read while UOLSR amp 0x01 then read from the Receiver Buffer Register ch U0RBR return ch Output You can see output on SPJ Terminal y Experiment No 5 Aim Write a program to interface LCD Apparatus EDU ARM 2148 Trainer kit with 16x2 LCD SCRAM PC Theory Write theory related to LDC Interfacing with ARM Processors Block Diagram
14. fied either in number of Kilobytes KB or Megabytes MB Some of the memory blocks maybe read only e g flash or conventional EPROM Accordingly you may check or uncheck the Read only box Based on this information about memory banks the IDE will automatically create the Linker Script This auto generated script is adequate for most users However if you wish to use your own script file instead of this autogenerated script you may check the Use different linker script box and further click on the browse button marked and select appropriate linker script file 6 Click on Source Files to display that part of the dialog window This window will indicate that IDE has automatically added 2 files in this new project PROG1 C and STARTUP ASM The STARTUP ASM file is automatically created by the IDE and is required for all C projects Similariy the IDE has automatically created an empty C file PROG1 C If the file PROG1 C already exists in the same path then IDE would neither create overwrite it nor modify it but it will anyway add it to the project automatically If you wish to add more files in this project then click on the Add file button select the desired filename and then click on Open button Now the Project Settings dialog will indicate that selected file has been added into the project When all necessary files have been added to the project click OK button to create this new project
15. here to connect Device ID starting from 0x4 will be displayed and program will run To stop program go to Run gt Stop Now you can insert breakpoint and say Run You can use all the functions visible in Run option In variable watch window you can see only global variables 10 If you have declared any global variables then find their addresses from map file 11 Insert these addresses in variable watch window and you can see global variables also CONADAARWNS Experiment No 4 Aim Write a program for serial communication using UARTO W A P to transfer message Hello World serially at 19200 baud rate 8 bit data and 1 stop bit using UARTO Apparatus EDU ARM 2148 Trainer kit SCRAM PC Theory Write theory related to serial communication using UARTO Bloch Diagram JI EDU ARM7 2148 PC Serial Cable Programm Program is given along with the compiler software Source Code include lt Philips LPC2148 h gt include lt stdio h gt void main PINSELO 0x00000005 InitUartO printf Hello World in while 1 putchar getchar Function UARTO include lt Philips LPC2148 h gt Hinclude lt Philips LPC2138 h gt define VPBDIV volatile WORD32 0xE01FC100 define UORBR volatile WORD32 0xE000C000 define DESIRED_BAUDRATE 19200 define CRYSTAL_FREQUENCY_IN_HZ 12000000 define PCLK CRYS
16. king and evaluation patterns that will benefit the sincere students Study experiment 1 Aim Study Of EDU ARM 2148 Trainer kit Apparatus t EDU ARM 2148 Trainer kit Theory i The trainer kit contains following items 1 EDU ARM7 2148 board 2 Serial communication Cable 3 Power Supply Adaptor 4 SPJETs CD ROM Power Supply Requirement The power adaptor works with 230VAC It produces approximately 9V DC and the EDU ARM 2148 uses on board regulators to provide 5V 3 3V and 1 8V DC to all components on board Connecting the system The serial communication cable supplied with the board should be used to connect the board to a PC running windows95 98 ME 2000 XP Vista Operating system Connect one end of the serial cable to UARTO of EDU ARM7 2148 board and other end to PCs serial port Powering ON After connecting the serial communication cable as described above you may insert the power adaptor output jack into the on board power socket Plug the power adaptor into 230 VAC mains outlet and turn it on The power on indication green LED will turn on A EDU ARM7 2148 Bloch Diagram Below figure shows the locations of different components on the EDU ARM7 2148 board PWEJACK JIUAKII J CARIU SUSE L94 Graphis LUD Enable Graptice zen PWM Test Point fa Pwo 1x2 Tex Le 8 General Purpose Comet Semper to Emble LEDs m General Purpose Keys POT 10 give Heenk X3Sleppe Motor Buzzer Xey to give SPT based
17. manual before you actually start using it SCARM is SPJETs C Compiler for ARM It also includes an IDE and other tools like Debugger Visual Code Generator VCG and Terminal Emulation Utility SPJTerm This document describes steps to create ARM applications in C using the SCARM About Project What is a project A project is a file in which SIDEARM stores all information related to an application E g it stores the name s of C and or Assembler source file s memory size to be used and other options for compiler assembler and linker Opening a project To open an existing project file select Project Open Project from the menu Creating a new project To create a new project select Project New Project from the menu Changing project settings To change the project settings such as adding or removing C and or Assembler source file s changing memory settings etc select Project Settings from the menu B SCARM Quick Start for creating C applications 1 Start the SIDE ARM program i e the Integrated Development Environment from start Programs SPJ SCARM 2 From Project menu select Close project if any project is open 3 From Project menu select New Project The Open dialog window will be displayed Select the desired path where you wish to create this new project For example C SPJ 12 CAUTION The path and filename must not contain space or other special characters such as tab comma semicolon
18. nt amongst the teacher taking the examination Teachers taking such examinations should not have ill thoughts about each other and courtesies should be offered to each other in case of difference of opinion which should be critically suppressed in front of the students 6 Evaluation and Marking systems Basic honesty in the evaluation and marking system is absolutely essential and in the process impartial nature of the evaluator is required in the examination system to become successful It is wrong approach or concept to award the students by way of easy making to get cheap popularity among the students which they do not deserve It is a primary responsibility of the teacher to see that right students are really putting up lot of hard work with right kind of intelligence are correctly awarded The marking pattern should be justifiable to the students without any ambiguity and teacher should see that the students are faced with just circumstances 28
19. ogrammable ISP Therefore it is possible to download user program into on chip flash of LPC2148 through serial port connected to PC For doing so a certain position of S3 switch is required S3 Switch should be continuously ON This section describes how to use the software Flash Magic to download program into LPC2148 1 How to install Flash Magic The CD you have received with this board contains SCARM C Compiler for ARM Install it After installation go to folder C SCARM Utilities This folder contains 5 zip files Install Flash Magic from FlashMagic3 71 zip Extract the FlashMagic3 71 zip and then run FlashMagic exe from the extracted files If you have wrong version of Flash Magic already installed then please uninstall it first and then install new version 2 Download and Run program using Flash Magic into LPC2148 After installation of Flash Magic open it In Flash Magic go to Options gt Advanced Options gt Communications Check High Speed Communications and keep Maximum Baud Rate as 19200 Click on OK Again in Flash Magic go to Options gt Advanced Options gt Hardware Config Use DTR and RTS to control RST and P0 14 option should be checked Click on OK After doing above mentioned settings Flash Magic stores it means for the next time just verify if these setting are proper or not If they are proper then you can directly follow below mentioned procedure a Connect the J1 UARTO connector of EDU ARM7
20. r than only topics mentioned in the syllabus as practical aspects are the key to understanding and conceptual visualization of theoretical aspects covered in the books Good Luck for your Enjoyable Laboratory Sessions Prof A R Salunke Prof C B Kasar Author SUBJECT INDEX Title Page no 1 Do s and Dont s in Laboratory 5 2 Instruction for Laboratory Teachers 5 3 Lab Exercises 1 Study of EDU ARM 2148 Trainer kit 6 2 Study of IDE overview Project creation downloading amp debugging 12 3 Study of JTag debugger 15 4 Write a program for serial communication using UARTO 17 5 Write a program for LCD interfacing 19 6 Write a program to Blink LED s 23 7 Write a program for Stepper motor interfacing 24 8 Write a program for buzzer interfacing 26 4 Quiz on the subject 28 5 Conduction of viva voce examination 28 6 Evaluation and marking scheme 28 1 DOs and DON Ts in Laboratory 1 Do not handle kit without reading the instructions Instruction manuals 2 Refer Help for debugging the program 3 Go through Demos of Signal Processing tool box 4 Strictly observe the instructions given by the teacher Lab Instructor 2 Instruction for Laboratory Teachers 1 Lab work completed during prior session should be corrected during the next lab session 2 Students should be guided and helped whenever they face difficulties 3 The promptness of submission should be encouraged by way of mar
21. s This software tool Debugger will work correctly only when the JTAG Cable is connected correctly For SJT S There is a crude test to verify SJT S JTAG Cable connection You may please follow these steps 15 1 Connect JTAG Cable between PC COM port and EDU ARM7 2148 as per instructions in this manual 2 Turn ON power to the target board 3 On the PC run SPJTerminal software 4 In the Port Settings select appropriate COM port to vvhich the JTAG cable is connected Select 115200 baud no parity 8 bits per char 1 stop bit and no flow control 5 Open the COM Port connection 6 Type character G in the terminal window l e send the character G to the PC COM port 7 If the JTAG Cable connection is correct it will send back character 1 or 0 As a result you will see either 1 or 0 appearing in the terminal window This indicates that JTAG Cable connection is ok 8 If you don t see any character in the terminal window probably the JTAG Cable is not connected appropriately 9 If you see some character other than 1 and 0 then either the cable is not connected appropriately or the COM port settings are not as specified above C How to Debug Program Connect SJT S as mentioned above Open project in SIDEARM Rebuild it Download the same code in the target board In SIDEARM go to Tools gt Debugger In Debugger go to Run gt Click on Not connected to target click
22. s is a 20 pin single line connector designed for connection to standard 128x64 Monochrome Graphics LCD modules The pin signal correspondence is designed to be matching with that required by such LCD modules Pin 1 GND Pin 2 5V Pin 3 Vicd Pin 4 P1 25 Used as RS of GLCD Pin 5 P0 15 Used as RW of GLCD Pin 6 1 24 Used as EN of GLCD Pin 7 P0 10 Used as DO of GLCD Pin 8 P0 11 Used as D1 of GLCD Pin 9 P0 12 Used as D2 of GLCD Pin 10 P0 13 Used as D3 of GLCD Pin 11 P0 18 Used as D4 of GLCD Pin 12 P0 19 Used as D5 of GLCD Pin 13 P0 20 Used as D6 of GLCD Pin 14 P0 21 Used as D7 of GLCD Pin 15 P0 22 Used as CS1 of GLCD Pin 16 P0 30 Used as CS2 of GLCD Pin 17 Pin 18 Pin 19 5V Pin 20 GND JTAG Connector This standard 20 pin JTAG connector provides debugging support for the LPC21xx This connector is mounted on top side of the board as shown in figure1 JTAG cables like SJT S or SJT U can be connected to this connector while other end of the cable can be connected to PC COM port or USB port respectively Debugger software like the debugger built into SCARM allows JTAG based debugging It is also possible to use third party JTAG based emulators debuggers The pin out of JTAG Connector is given below Pin Signal name Pin Signal name 1 33V 2 33V 3 PI3UNTRST 4 GND 5 TDI 6 GND 7 TMS 8 GND 9 P1 29 TCR 10 GND 11 P1 26 RTCK 12
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