Page 1 of 33 Chapter 1: MCD-DEMO-II Development Board System
Contents
1. R27 R28 10K 10K IGI IDIG4 7 SEGMENT DISPLAY MODHENEHIBONIND ti oro AU Dae 10 Apr 2008 Shet Of Hle EXxqured demoii sl demo DDB Drawn By Zhongruntian 1 2 3 4 5 6 7 z 1 2 2 4 5 6 n DC9V IN S11 POWER DI 3 H d IN4007 WA D2 IN4007 i _ Ec D3 zm 4700 16 470 6 3v 3 IN4007 D4 M IN4007 ud ues n Jus Jun o Joo 5 POWER SUPPLY i eine PUSH BUTTONS i U2 OSJ CIKIN A Q MARVPP 55 IS e Joo Jo c JB j o Je oo o un to Le tU RUA 00 30 ea s 4X4 KEY MATRIX 33 34 35 vep 5 DIRECT MCD DEMO IIBOARD PORT ACCESS i Der Ba Date 10 Apr 2008 Sheet 2d 2 File E exq med demoii sdemo DDB Drawn By Zhagnntian 1 2 3 4 5 6 Page 4 of 33 DEMO II Copyr2. Figure 4 9 RS232 communication This module is described as below 1 the serial module connected through two jumper wires to the USART module of MCU at the interface of RC6 and RC7 ports 2 two jumper wires control the connection of serial module and MCU When this module is in use we must ensure that access jumper wire is in the connected state when not in use we must ensure that the jumper wire is in disconnected status 3 CD ROM provided along includes the examples about this module for reference The schematic of this module is shown in Figure 4 10 E C15 C16 10U 10U Cy HH 104 C14 o 10U oo S E U7 Rx R35 3R 7X y RI OUT 3 R37 330R gt ROUT T1 OUT R38 330R T20UT aa aa 4 C12 3 5 M MAX232 i Figure 4 10 RS232 communication module schematic R36 330R 16 Page 18 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd 4 7 DS18B20 Temperature Module This module mainly shows the use of temperature sensors DS18B20 as shown in Figure 4 11 The module consists of the following major components 1 Temperature Sensor DS18B20 socket 2 Jumper wire J17 to be used as a switch Descriptions on this module 1 D818B20 is an optional product to be purchased 2 DS18B20 information included in the CD ROM provided along with product 3 DS18B20 output by connecting jumper wire J17 to the RA2 pin of the MCU 4 When this module is in use we
3. RB3 6 4 RE 7 RBI 8 Ri RBO 9 ee RL7 10 RDS 11 RIES RID 12 a RD4 13 m RDS 14 mm RI 15 E RDI 16 wu RDO 17 UM 4 18 wa RCO 19 yA RCI 20 Hi RC2 21 i RC3 22 A RC 23 NIE RCS 24 I RCS 25 RC7 26 E RE 27 REI 28 REO 29 Lm RAS 30 RA4 31 RA3 32 RA2 33 RAI 34 RAO 35 VPP faa Figure 4 1 all I O and external output schematic Page 13 of 33 DEMO I Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd 4 2 Chip Socket and Clock Selection The module consists of the following major components 1 40pin chip socket 2 28pin chip socket 3 The system clock selection crystal or external RC DEMO II can support all 40pin and 20pin PIC16FXXX and PIC18FXXX chips whose pins are compatible with PIC16F87X as shown in Figure 4 2 Short jump to the lower terminal of J3 J4 close to the crystal OSC then you have selected the OSC as the system clock while if you short jump the other two terminals you will have selected an external OSC as your system clock The crystal OSC will be using plug in and out method so that the users may change OSC with different frequency by their own choice See Figure 4 3 Figure 4 2 40pin 28pin chip and system clock selections VCO J3 ROXT C5 3 Q 22P CJ Y1 ROXT 4 000MHZ t 3 KE 3 C7 OSI 22P Figure 4 3 system clock selection schematic Page 14 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology She
4. C Pep AAA h PAH Soe PS Brora Hupi Mp Suite tit Listed _ Shea nicis iones kitume Fa Wh 8 Lk Fos E amp m Figure 2 5 Choose chip model Figure 2 6 Choose compiler tools Step 4 click Next choose the directory where the project is saved and complete the project name as shown in Figure 2 7 Step 5 click Next the add source codes to the project as shown in Figure 2 8 Fm i Ej Fruji Firg port Y i a Pel Esp Thess Step Foor ie Beck Bi Terr peajaet hdd wy axir rg Eilas o your prejact s ia ee Project name Source Selection IE unphabiE ks Pam C 5 Aa E C3 count 2g Era ESQ LEP S5 Frasi recte n ws a 73 Lm H LCD 1264 i Hy LED e 1 LED Y Bee peii pni Ya ER in Ed les roses ol Pss kcal cop kcu aor 5 Em ME E Pair sa ke Mb Figure 2 7 Choose directory to save project Figure 2 8 source selection Page 6 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd Step 6 click Next as shown in Figure 2 9 to come to tips interface Summary rk Dick Finch ka cara the prog eth harm pore Fa Paget Cece PCS obse hi PAEH Tooadie Fila E apa ESBMPLE ESA ELE nop 4 ram Ya kupaza ral ba carad and the rue prpact addad kp bust rb posce pio x amp Ww amp Figure 2 9 Tip interface Step 7 directly click Done and exit the wizard o0 far we have completed establis
5. ve 1 li B C10 104P Figure 4 16 IIC communication schematic Page 21 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd 4 10 LCD12864 and 1602 LCD Module This modules majorly includes LCD12864 socket and 1602 LCD socket as shown in Figure 4 17 a M UN Figure 4 17 LCD12864 and 1602 LCD sockets Descriptions of this module are as following 1 LCD 12864L CD and 1602 are using PORTA as the control bit PORTD as data bit Only the MCU which has PORTD can execute LCD display 2 All the pins of this module are connected to the MCU directly and there s no coding switch to control it When the LCD is not in use it is suggested that the LCD is taken off from the socket while if it is in use we should shut off other modules or else the LCD will not display 3 The development board can not adjust the brightness of 1602 LCD or the contrast of LCD1 2864 4 All LCD used in this development board are products of Jinghanda Electronics Companies if you use other products please confirm whether or not it is compatible 5 Data about 1602LCD and 12864L CD are included in the CD ROM 6 Application examples about 1602L CD and 12864L CD are included in the CD ROM ochematics of these two module are shown in Figure 4 18 12864LCD O Cl c xr wv OO LE 92oz8 AGA c B zip 8 ee eee eee A laienl sfin olrloolalo alajen s us olr foolato VCC Small Kamel Reel
6. non functional When using 93CXXC jumper wire decides to choose WORD SIZE for 8 or 16 bits 5 93LC46B EEPROM related program examples were included in the CD ROM for reference The module of the schematic shown in Figure 4 14 VEC Cll pene li S7 93CXX J15 e 1 RG 2 1 3 ZWA RG 3 R 4 cc EN Figure 4 14 schematic of SPI Communication Page 20 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd 4 9 IIC Communication Module This modules mainly shows the ICC protocol through access to the external device EEPROM 24CXX as shown in Figure 4 15 The module has the following main components 1 24CXX EEPROM 2 double bit coding switch Figure 4 15 24CXX EEPROM Descriptions on this module are as below 1 information about 24CXX EEPROM was included in the CD ROM 2 the IIC communication port SDA of 24XX is connected to the IIC communication port RC4 and RC3 of MCU CK to allocate yards and switch connected to the MCU so it can be controlled by hardware 3 When this module is in use we must ensure that the coding switch is in the connected state when not in use we must ensure that it is in disconnected status so as not to affect the normal operation of other modules 4 Programs about read and write of 24 CO1B EEPROM is included in the CD ROM for reference The schematic of this module is shown in Figure 4 16 9S6 24CXX VCC Ra Cr me FRO POOP gt
7. the chip board is correct 2 whether the communication between the chip and MCD2 is good or not whether there is a 5 pin multiplexing 3 whether there are components such as capacitor and diode on VPP pin 4 whether the power settings are correct or not whether the voltage on the target board is normal 2 CDWarn0019 Debug mode is not enabled Unable to enter debug mode In this issue please confirm the following 1 whether the communication between the chip and MCD2 is good or not 2 whether the background debugging options in the configuration word of the chip is activated or not 4 whether the target board power supply is in good condition 3 whether the oscillation or reset functions of the chip work normal or not 5 whether the codes are write protected 3 ICD0019 Communication Failed to open port Can not open communications ports In this issue please confirm the following 1 Make sure that the hardware works properly and the connectivity works properly If you use USB interface please make sure the USB driver can function well you may check the ICD2 connection conditions in the Hardware Device Management and you may disconnect them for a few seconds and reconnect them 2 ICD2 linking order connect the hardware gt start MPLAB IDE software 3 in this situation you may try to re download operating system debugger Download Icd2 Operating System Note For more information please ref
8. Choose MPLAB ICD2 as a debugging tool or programming tool target board power supply mode 7 Complete the debugging and programming of program using MCD2 Full procedures of using MCD2 otep 1 in accordance with the methods described in the chapter MCD2 and DEMO II Connection to set up MCD2 and DEMO II connection Step 2 plug the MCU chip into the corresponding socket on the board otep 3 activate MPLAB software and open the project file that needs debugging otep 4 implement the menu command Configure t Select Device to select the model of target MCU chip Step 5 implement the menu command Configure Configuration Bits to configure related Bits Step 6 implement the menu command Debugger Select Tools to select the tool as MCD2 debugger Step 7 implement the menu command Debuggert Settings to select communication port settings and DEMO II power supply method Step 8 implement the menu command Debuggert Connect to establish the communication between MCD2 and DEMO II Step 9 implement the menu command Debuggert Program to burn the target MCU chip with debugged program Step 10 implement the menu command Debuggert Run_ or other operation mode to debug the target program Step 11 complete debugging and disconnect MCD2 and DEMO II Page 11 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd 3 3 MCD2 FAQ 1 ICDWarn0020 Invalid target device id In this issue please confirm the following 1
9. Information about infrared remote encoding chips 6121 is included in the CD ROM 2 The output of the remote control receiver is connected to the RA1 port of MCU through a jumper wire 3 When this module is in use please make sure that the jumper wire is on while if it is not in use please make sure the jumper wire is disconnected 4 The CD ROM contains examples about remote decoding for reference The schematic of this module is shown in Figure 4 21 UT A 1838V J19 i L J 45y GND RAI ML R5 00 Lolo Figure 4 21 Remote decoder schematic Page 24 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd 4 13 six digital control module This module main introduces the use of multi digital LED display as shown in Figure 4 22 ma a om H e g n ENSE o E PEZ Phe ee ne zi sin b e ee as eae coop pam m ll Li 5 3 i f T TE E a A Figure 4 22 digital LED control module The module consists of the following major components 1 6 digital LED 2 Bit control and segment control coding switch 3 Driving circuit 4 Interface socket Descriptions of this module are as the following 1 The segment control of the digital LED is connected to the PORTD of MCU through coding switch 2 The bit control of the digital LED is connected to the PORTA of MCU through coding switch 3 When this module is in use we must ensure that the coding switch is in the connected state when not in us
10. Page 27 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd 4 16 Beeper Module This module mainly shows how to use MCU to control the beeper as shown in Figure 4 28 The main module of the following components 1 Beeper 2 Jumper wire J17 Figure 4 28 Beeper module Descriptions about this module are as the following 1 The beeper is connected to the RC2 pin of MCU through a jumper wire 2 When this module is in use please make sure the jumper wire is connected while when it is not in use please make sure that the jumper wire is disconnected 3 When the jumper wire J17 is on connected status we may hear a weak beeping even if there s no chip on the board which is a normal phenomenon 4 The CD ROM includes programs of beeping for reference This module schematic shown in Figure 4 29 RC2 Figure 4 29 Schematic of beeper Page 28 of 33 DEMO II Copyright of Qianlongsheng Electronics Technolo Shenzhen Co Ltd 4 17 Independent Key and External Interrupt Module This module is independent key and external interrupt module as shown in Figure 4 30 Figure 4 30 Independent Key and External Interrupt Module This module consists of the following main components 1 Five independent buttons 2 One five bit coding switch 3 Interface socket Descriptions of this module are as the following 1 All keys are at LOW voltage when they are pressed down and are at high impedance w
11. again the results are shown in Figure 2 11 Message 302 information tips draws your attention to BANK selection even if BANK is set up correctly the messages will still appear but it does not affect the results of the implementation of program If there is an error in the program it will not generate the target HEX file to get HEX file you need to correct all errors in the source codes Page 7 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd Debugging Debugging program is to test whether the program you deigned is operational whether it produces correct result as wanted whether there s any defects in your design whether the algorithm design is reasonable and whether it can accurately control the various hardware resources and whether it can obtain desired results Choose debugging tools Select menu command Debugger t Select Tool to select the simulator connected to the PC as the debugging tool or you may select the software debugger which comes with the MPLAB software as the debugger for the target program After choice it will open the corresponding toolbar Observe debugging results The internal storage area of PIC microcontroller can be divided into several sections program memory hardware Stack file registers special function registers and EEPROM data memory In the course of the operation of program it will repeatedly read write or modify the contents in the storage area Therefore we c
12. development board 1 pc PIC16F877A MCU 1 pc 1602LCD 1 pc Power supply 1 pc Serial cable 1 pc and telephone cable 1 pc Manual and CD ROM 1 copy respectively Qianlongsheng Electronics Technology Shenzhen Co Ltd WEB http Awww pic16 com http www pic16 cn Contact 13 G Huining Building Minzhigianlong Garden Longhua Town Shenzhen Guangdong P R China Zip Code 518131 Tel 0755 28187975 Fax 0755 28187976 Page 33 of 33
13. CO RC RC2 RG RA RG lil RO CT RI3 470 RC7 LI LI SW DIP 8 Oront nde Figure 4 25 Schematic of play in turn Page 26 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd 4 15 Stepper Motor Module This module mainly shows the operation of stepper motor Through the study of this section we should understand the relevant knowledge about stepper motor This module is shown in Figure 4 26 The module consists of the following components 1 Stepper motor interface 2 Drive circuit 3 Coding switch 4 Current limiting fuses Descriptions on this module are as the following 1 The stepper motors used in this development board are products 35BY48S053 and the compatible products of Changzhou City Fengyuanweite Motor Co Ltd If you use of other motor please check the number of phases and the electrodes order 2 The driving circuit uses a simple FET to drive 3 As the current of stepper motor is quite big it is suggested that the coding switch is disconnected when this module is not in use so as to avoid the impact on other modules 4 The CD ROM includes examples of the use of steppers for reference It is also including speed control direction control and stepping distance control The schematic of this module is shown in Figure 4 27 IN4007 Cx Lh JR LO b3 e D12 IN40D7 Bra vec 1400 Figure 4 27 Stepper motor module schematic
14. DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd Chapter 1 MCD DEMO II Development Board System Introduction TOT PEDE NS WA WW ici a E a e 2 1 2 Board Resour e MOU AA 2 Tos PEGODODSCIIITIOII ean a E euE ees 4 Chapter 2 MPLAB IDE Integrated Development Environment 2 1 MPLAB Installation AA 5 2 2 MPLAB Simple Application 5 2 2 1 Create a Simple Project 5 2 2 2 Program Debugging 7 Chapter 3 Use of On line Debugger MCD2 SMG SN WA a a 9 SIDE CONNECCION AA 10 3 3 MCD2 FAQ AAA 12 Chapter 4 DEMO II System Functional Modules Details A AO Exteral OUput ccc a a 13 42 Chip Socket and COCK SI essct seen ate niece ptis cspudundeneatise 14 4 9 FP OWE IVIOCLIIG sae maine ns ss rn senses etme eres sen ea cecena rans d etna ee csnee oo rea sea eneaeeseeacaeeonacenandden 15 4 4 4 4 Matrix Keyboard Module 16 4 5 olr laon Interace and Reset DUETOI e eesesscscecoee a ee i dene eee eee pendeidee re 17 GO T2921IOUUID a aa diues puede utet dupueeleicat 18 du DSS MOUIE sei ee 19 Zo COMM UnICAN On
15. DEMO II development board including the use of MPLAB edit compiling source and MCD2 debugging results Hardware layout 1 4x4 matrix keyboard controlling the coding switches S3 which are all on 2 The t and p position of 6 bit digital LED coding switches are both on while other bits are off we use only the 5 and 6 digital LED to display 3 All the coding switches that controls the six LED are ON Software planning 1 In this software we ignore the jitter of keys when the software detects LOW voltage it would consider that there s a key press 2 In this software we do not consider the situations when several keys are pressed down simultaneously When there are several keys being pressed we consider that the key which has the smallest number is pressed for example when K1 and K2 are pressed at the same time we only consider that K1 is pressed 3 When there is no button being pressed the two digital LED display as FF when a key is pressed the LED will show the number of key that is pressed for example when K1 is pressed the LED s display as 01 while K16 is pressed LED s display as 16 Prepare and compile the source codes Double click MPLAB icon on the Desktop to run MPLAB programming environment 1 In accordance with the method introduced in 2 2 1 edit a new source code and save it as KEY4x4 asm 2 In accordance with the method introduced in 2 2 1 establish a new engineering project and complete the settings as belo
16. ICD 2 Ready E Werify Succeeded Connecting to debug executive l Frogramming succeeded 25 Jan 2007 11 45 44 IMPLAB ICD 2 Ready Figure 5 4 Connecting information Figure 5 5 Programming Information 7 After several debug we have basically achieved the desired results and the debug completed Disconnect the connections 7 E Maap Pii Aa IT Figure 5 7 Result when KO6 is pressed Programming the target MCU using MCD2 The source codes prepared as described above has passed the debug by using MCD2 and we have achieved our desired goal now we may use MCD2 to burn program the KEY4x4 HEX file into the target MCU chip in order that the MCU can run offline 1 Connect the MCD2 and the DEMO II development board in accordance with the method shown in Figure 3 2 2 Implement the menu command Programmert Select Too to select MPLAB ICD2 same as MCD2 as a debugging tool 3 Set up the configured bits and other parameters according to the specific conditions 4 Implement the menu command Programmer Program to program burn the KEY4x4 HEX file into the target MCU chip 5 Disconnect DEMO II and MCD2 to see the results of MCU execution Page 32 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd Appendix 1 Packing List and Contact When you receive the products please check the box to see if all accessories are complete This product should include the following components DEMO II
17. MCD DEMOZVCHENGEUXKEYAXd SKEYAX4d ASM Loaded E mcd demozZ chengxusKEYdxd KEY4dx4d COD BUILD SUCCEEDED Thu Jan 25 11 04 22 2007 T gt Figure 5 2 Source compiling results It can be seen from the figure that there are several messages suggesting that the registers used are not in the correct BANK please carefully check the program to ensure that all the registers are in the right BANK even if entirely correct the information will still emerge but it does not affect the implementation of results If there are ERROR num or WRNING num in the compiling results num means the error or warning number you may locate the cursor to the position that cause such errors or warnings by double clicking the message immerged and correct the source code and re compile it repeatedly until it shows the result as in Figure 6 2 Using MCD2 to debug the source 1 In accordance with the method shown in Figure 3 2 connect the MCD2 to PC and DEMO II development board 2 Implement the menu command Debuggert Select Tool to select MPLAB ICD 2 same as MCD2 as a debugging tool 3 Implement the menu command Debuggert Settings to select the USB as the communication port and the board will use its own power supply i e disable MCD2 power from the target board It is shown in Figure 5 3 F a Progr wm Yarkipnk Fark mx kisawa m HEU 7 Power zi gt E B D za meme mm set onem Latus manl c wt initalionl 3 rana v Dur Ua wal
18. MOQUE sae ee ea eee ct niedmucde sene ele eie EC 20 AO NG Comm nication Mi ee 21 4 10 LCD12864 and 1602 LCD Moduli aaa 22 4 TAD Converter Module ere ieee 23 4 12 Remote Control Receiver amp Decoder Module uu 24 4 19 S cdgital DISpIay dVIOClHle eee ee orent aa es 25 4 14 8 play in turn Light Module 26 A To Stepper Motor Module C E 27 4 1O BM WA AAA 28 4 17 Independent Key and External Interrupt MOU uu mene 29 Chapter 5 Practice of DEMO II Development Board 30 Appendix 1 Packing List and Contact 33 Page 1 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd MCD DEMO II Development Board System Introduction 1 1 Product Overview MCD DEMO PIC DEVELOPMENT BOARD Il hereinafter referred to DEMO II is a multifunctional PIC microcontroller development platform which has been carefully designed and developed by Qianglongsheng Electronic Technology Shenzhen Co Ltd based on many years development experience and the original DEMO I It integrated the common external resources and simulation interfaces Associating with the data and a large number of examples of programs that our company provides you will be able to fully master microcontrol
19. T FIC BRST TA Figure 2 1 MPLAB main window Figure 2 2 text editor window Choose menu command File new MPLAB will automatically call MPLAB Editor source editor and the work area will have a text editor window and you can complete input of source code As shown in Figure 2 2 Edit the source codes in Text editor window then select the menu command Filet Save to save to the source file to the specified directory as shown in Figure 2 3 Page 5 of 33 Shenzhen Co Ltd DEMO II Copyright of Qianlongsheng Electronics Technolo B ra Welcome i i rjv Baa CO KALE Tha eor haka pouconeele and configure sees HPLAB 3 EEANLIT AC mrri EFE ae ioe mma ree I A xuzambly Source Poles t ii amu t RUM Su Toth contras obok Hot Esoderg AHS m C Add Fie To Pred E r FoF Ra MB Figure 2 3 Save source codes Figure 2 4 Project wizard welcome interface Use the wizard to create project files step 1 Chose menu command Project Project Wizard to come to the Welcome interface shown as Figure 2 4 otep 2 directly click Next and select chip model as shown in Figure 2 5 Step 3 click Next select the appropriate compiler tools according to the source language and chip to be used as shown in Figure 2 6 iu s Pan bes Firari Stag Tra Step One Salact m lunganga Select a darica NANE Lippe pr inmini rae one KPUB Litman rgdib ax leyes FiCiEF7E5 meus aa
20. a Watch x T WIS EI TEA MI m dee Figure 2 12 Menu command to open storage area Figure 2 13 Observation window Thus we have introduced a simple use of MPLAB and through the learning in this chapter we should be able to complete the source code edit compile and debug Note For more information on the MPLAB please visit the website of MICROCHIP and download MPLAB User Manual Page 8 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd Chapter 3 Use of On line Debugger MCD2 This chapter briefly introduces the installation of MCD2 the connection of MCD2 to PC as well as the DEMO II and the common troubleshooting For more detailed information please refer to MCD2 User Manual 3 1 Get to Know MCD2 MCD 2 is designed and produced by our company It is fully compatible with MICROCHIP product MPLAB ICD2 It is a cost saving substitute of online simulator ICE MPLAB ICD2 can support most of the Flash Technology chips which can be used not only as debugger but also a chip programming device used in production It is the only model of chip programming device as well as simulator in China which supports PIC24FUXX DSPICSOFXX DSPIC3SFJXX And it is the only one to have over 80 of the PIC engineering customers It is also the most convenient fastest and highest performance price ratio for factories during the production of PIC18FXX PIC24FJXXDSPIC30FXX and DSPICSSFJXX as shown in Figure 3 1 Changes o
21. an observe the changes of content in storage area corresponding to the operation of program so as to understand the operation of program and achieve the purpose of debugging To open storage area we can choose the View menu commands as shown in Figure 2 12 Apart from the use of these storage area to observe the debugging process we can also add the concerned specific modules to the observation window to monitor the results Implementation the menu command View Watch and the observation window will open as shown in Figure 2 13 TEE TERI EN P EXANPLE EPLAB IDE v1 5 BEH oY swasple EPLAN IBE 47 90 mis T pM TT a File Edit Yiey Froject Debugger Frogranmer Tools Configure Window Help Fils a dae Seen eae Tree ert Lila cee cere Bal Hale ae DU Se ese KUTI Ogi eA he Y o Rio vr ud D OS rn Cote Lv Release E ca Hg amp a WO ecu Release Sit ta bom eb Ty POR Checkoume kagiat P Toolbars F toh PE IE HRS md a me eum ne o cm ni ume a a Raman AA um a a Rem cum aces ccm M ca wen aro cm a d me Se tsion Conol Find in Files MPLAB SIM e target E mplabXELAMPLE EXAMLEF de lg C Program Files Microchip MPAs 302 E XREPLABXERANPLEXEZAMLEP ASN 1 ipl ab ESANPLE EZANLEP COD MCERDED Thu Jan l8 16 03 50 2007 Disassembly Listing EEPROM File Registers Hurdwara Stack Sues Kati Locals Progran Rancry 13 wach wach 2 lah 3 airh d special Function Registers M k
22. bani baml haml hami eel bami Roel LON VC zz ABBABIAAG SIE EIE Figure 4 18 schematics of 12864L CD and LCD1602 Page 22 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd 4 11 A D Converter Module This module main executes the conversion from analog signal to digital signal A D Converter Module This module mainly consists of the following components 1 One 1K adjustable potentiometer 2 Jumper wire J18 Descriptions of this module are as the following 1 The potentiometer is connected to the RAO port through jumper wire J18 2 When the A D converter is in use please make sure that the jumper wire is on while if it is not in use please sure it should be cut off so as not to affect Other modules 3 CD ROM provided along with the product includes examples of A D converter for reference ochematic of this module is shown in Figure 4 19 VC J18 V RAO _ E R4 1k 470R Figure 4 19 A D converter schematic Page 23 of 33 DEMO I Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd 4 12 Remote Control Receiver and Decoder Module This module main executes the receiving and decoding regarding infrared remote control as shown in Figure 4 20 Figure 4 20 Remote decoding module This module consists of the following major components 1 Infrared remote control receiver 2 Interface Socket Descriptions on this module are as the following 1
23. d to connect MCD2 to PC through USB cable you may not connect it to the user board at first Then the system will give out a message that it has found a new hardware and requires the installation of drivers now you only need to install the driving program following a step by step guide Please refer to PIC16 MCD2 Manual for specific details as we are not going to describe it in detail here USB driver is located under subdirectory X Program Files MPLAB IDE Drivers2000 ICD2 USB and if the OS is windows98 ME it will be icd2w98 inf under the subdirectories X Program Files under MPLAB Page 10 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd IDE Drivers98 ICD2 USB If the OS is Windows XP this INF file locates in X Program Files MPLAB IDE Drivers XP ICD2 USB under here X refers to the IDE C or D where the MPLAB is installed Note Please do not connect the MCD2 and PC through USB before installation of MPLAB IDE 6 XX Install and configure MPLAB according to MCD2 Generally please follow the below procedures to use MCD2 1 Connect MCD2 PC and user objective board according to Figure 3 2 2 Click on the Desktop icon MPLAB to start MPLAB software 3 Choose the model of microcontroller that is used on the target board 4 Configure the target chip with bit information 5 6 Choose the correct communication port according to the actual connection between MCD2 and PC as well as the
24. e we must ensure that it is in disconnected status so as not to affect the normal operation of other modules 4 You may also achieve the display of digital LED by use of interface socket And at this point you must ensure that the coding switch is disconnected 5 The six digital LED are using a common anode 6 The CD ROM contains examples for reference One static display and one dynamic display examples are include respectively The schematic of this module is shown in Figure 4 23 RREEEE 7 SEGMENT DISPLAY Figure 4 23 Digital LED schematic Page 25 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd 4 14 8 Play in turn Light Module This module is shown in Figure 4 24 It consists of the following main components 1 8 LED 2 8 coding switches 3 Interface socket Figure 4 24 8 Play in turn Light Module Descriptions of this module are as the following 1 8 LED are on when the I O outputs HIGH voltage 2 Each LED is controlled by a separate coding switch When this module is not in use it is suggested that the corresponding bit be disconnected so as to avoid causing unnecessary disruption 3 You may test the I O ports of other MCU by using the interface socket 4 The CD ROM includes some simple examples of this module which cover lit each LED a Simple play in turn just for users reference The schematic of this module is shown in Figure 4 25 S2 7 LH R
25. eeper module External interrupt input module Page 3 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd 1 3 Products Schematic A D INPUT R42 100 C21 Oe VDD 2 DQ R43 100 3 GND BR LCD1602 12864LCD U8 DSI 8B20 DS18B20 REMOTE CONTROL va 24CXX DC EEPROM E 104 vec px R35 330R x4 R37_ 3XR us R36 BR A R R38 33R TX 4 UDEN VSS 1 c12 3 5 EE 051 Eme uil 105 D7 D9 LED SEG 420 LED SHG 420 leo GANI Q mlalo WO OO G2 S Q v oaaao j gema BUZZER
26. er to the PIC MCD2 Manual Page 12 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd Chapter 4 DEMO II System Functional Module Details This chapter will describe in more detail on DEMO II development board and the functional modules by illustrating the schematics of the modules and the points that needs to pay attention to during usage And in the CD ROM that is provided along with the product we have included a number of examples prepared by using such functional modules and these examples cover the layout of the hardware and software and the source code with detailed annotation in Chinese as well as the executed results which aids to the reference especially for beginners As the experimental board is modular in design the configuration of your project may diverse in large amount and the output ports are all available for external resources The hardware and program can be at reader s own will so readers may draw inferences about other cases from one instance 4 1 All O External Output Module All I O resources on DEMO II development board are designed for external output Users can build their own circuit by taking advantage of the existing resources of DEMO II As shown in Figure 4 1 This module consists of the following main components 1 40 pin chip all O PORT AVB C D E 2 serial programming voltage VPP 3 power supply VCC and GND 1 Nah RB7 v k w RBS 3 NETT RBS 4 i REA 5
27. f product appearance or interface alignment will be subject to no prior notice please follow the actual product you have purchased PIL HE 2 www pic 16 com Figure 3 1 MCD2 1 RS232 serial communication port through the serial cable provide along with the product you may connect the MCD2 to a PC serial communication port 2 USB reset button to solve the problem that when it fails for MCD2 to get connection to the USB there will be a message ICD0019 ICD0021 requesting you to unplug and then plug the USB again now with the rest button you may only press it and wait for 8 seconds to start re connection and establish communications Please do not press reset button when USB communication is ongoing 3 USB communication port through a USB cable to achieve the high speed USB and PC communication Note Please do not use MCD2 USB and serial to connect to a PC at the same time 4 ERROR ERROR indicator 5 BUSY run busy indication 6 POWER power indicator 7 CSP download or debugging output ports 8 MCD2 external power port for AC DC7 5V 12V more than 200MA current external power input Page 9 of 33 DEMO II Copyright of Qianlongsheng Electronics Technolo Shenzhen Co Ltd 3 2 MCD2 Connections MCD2 PC and the user target board must be properly connected before it can work properly MCD2 and DEMO II connection The connection between MCD2 and DEMO II is shown in Figure 3 2 inpu
28. feet rue 91 USB Teal Spe 86 Leda bl AR CDL D Capp Dun Vlog gu deed on Geren niue i updahi and power oiim changes C Powa Laga oras homi FLAB ICD 20 ook Figure 5 3 Set up communication ports and power supply for target board 4 Implement menu command Debugger Connect or icon in the tool bar to connect MCD2 and DEMO II development board and when it is successfully connected it will shown as in Figure 5 4 with a message 5 Implement menu command Debuggert Program or the icon in the tool bar to program burn the objective codes to the target MCU chip Note now the MCU cannot run on offline mode but has to be run under debugging mode after programming it will show a message as in Figure 5 5 6 Implement menu command Debuggert Run or toolbar icon we can see the display of FF in the DEMO II Page 31 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd development board shown as Figure 5 6 Now if any key is pressed the LED will display a the number of that key for example if KO6 is pressed the LED will display 06 shown as Figure 5 7 Build Version Control Find in Files MPLAB ICD 2 m weritying contiguration memory wes Build Version Control Find in Files MPLAB ICD 2 Lonnected setting Vdd source to target Target Device PICIBESTT found revision Rey x Reading ICD Product ID Eunning ICD Self Test r Passed 3 MPLAB
29. hen they are released when they are in use we should open the internal up pull resistance of the MCU so that when the keys are released they are at HIGH voltage 2 K1 not only can be used as ordinary key but it can also be used to trigger external interrupt 3 All the keys are connected to the Port B of the MCU when they are in use please make sure that the coding switches are connected and when they are not in use please make sure that the switches are not connected 4 When using Port B as keys it is suggested that the weak up pull function of Port B be enabled while other ports are used it is also suggested that up pull resistors are added to the board 5 You may also use the keys of other MCU by taking advantage of the interface socket 6 The CD ROM contains examples about the use of this module The schematic of this module is shown in Figure 4 31 R5 uu RB 2 L r 3 6 B O RBI 4 IK K2 RB RE2 3 RB3 2 R6 dili RBI 1 AA I IK K3 RBI Lo SWDIP 5 Yi p IK KA RE2 R8 O O IK K5 RB R9 all e O IK K6 RBA NINANA S Figure 4 31 Keys and external interrupt module Page 29 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd Chapter 5 Practice of DEMO II Development Board Actual practice purposes This chapter takes the 4 4 matrix keyboard module and the six digital control module as the basis and have systemic introduction about the use of
30. here s a 10K Omiga up pull resistor to ensure that the level of voltage keeps stable 5 in the CD ROM provided along with product there re simple examples about 4x4 keyboard matrix RCO 16 RCI 15 RQ 14 RG 13 RC 12 RO 11 R 10 RC7 9 J7 NUR amp RUO 00 DELLI LLLI S M d 33555555 aa 4 4 matrix keyboard schematic Page 16 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd 4 5 Simulation Interface and Reset Button Simulation interface is reserved for user to connect MCD2 to a simulator The interface completely follows MCD2 ICD2 interface requirement user may need to do no changes when using it It is shown in Figure 4 6 Reset button is used to reset the MCU as shown in Figure 4 7 Figure 4 6 Simulation interface Figure 4 7 Reset button oimulation Interface and reset button schematics are shown in Figure 4 8 VOC Figure 4 8 Simulation interface and reset button schematics Page 17 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd 4 6 RS232 Communication Module The modules mainly shows how for the MCU to communicate with external devices such as PC by using USART module as shown in Figure 4 9 The module consists of the followng main components 1 RS232 voltage level converter chip 2 RS232 communication port 9 pin serial port 3 two jumper wires J15 and J16 E a a CS ee Hac ic
31. hing a project the source For more details please refer to MPLAB Operation Manual 2 2 2 Debugging the program Based on the source code edited and project created in above this section will show you a brief introduction about complying and debugging a program Compile Implement menu command Projectt Build All and MPLAB will automatically call the tools mentioned in above Step 3 of establishment of project for you to compile this source code When completing compile the interface will be shown as Figure 2 10 Duk i 78 SAWP Reece wo ld GR oS cS DgkL 579 97 FAS V Release e C ap ld EO o ES Checksem kilid Checksam Bia Euld veri Doni Fd in Files Welter The target E implahiEMAF Executing iwa Program Files i Nazsape J0 E MNPLABVEXAREPLESE Loaded Er mplab EEAMPLEXEE AU EF BUILD SUOCEEDED Fra Jan 19 161 Sar Lae E E PT APEX AMTTESE Halting build om first failure BUILD FAILED Fri Ian 18 15136 MARTA j pm t pe FICLEFETT Figure 2 10 Source compiled results Figure 2 11 Compiling succeeds From the output window of Figure 2 11 we can see the results that the program compiling failed because of a wrong source double click the message and the cursor will automatically stay at the line where there s an error and at the margin of most left of this line there s a Green Arrow It is obvious that the type of MOVLW has been wronged as MOVW Now correct the typo and compile it
32. ight of Qianlongsheng Electronics Technology Shenzhen Co Ltd Chapter 2 MPLAB IDE Integrated Development Environment MPLAB IDE hereinafter referred as MPLAB is the powerful software integrated development environment provided by Microchip for its PIC microcontroller It allows users to create record edit and comply programs of microcontrollers of PIC series on their own computer systems and it even can achieves dynamic simulation and debugging and run like virtual exercises 2 1 The installation of MPLAB MPLAB is completely free software offered by Microchip You can obtain the latest installation files through the following two ways 1 Visit our website www pic16 com 2 Visit Microchip s website www microchip com After downloading the files you only need to use compression decompression software tools such as WINZIP to depress and release the files in your computer and then run SETUP EXE or Install exe program and follow a step by step installation guide You may also do not need changes any of the settings just click Next until completion of the installation 2 2 MPLAB Simple Application 2 2 1 Create a Simple Project Edit source codes Click the MPLAB icon at your WINDOWS desktop or choose Start All application Microchip MPLAB IDE V xx t MPLAB Vx x for MPLAB version to start running MPLAB integrated environment Shown as Figure 2 1 Budd enin Coni Find an Files aur E pie F Symb FICi amp FHT
33. ler programming technology in a shortest time Particularly it is suitable for self learning for microcontroller beginners as well as electronic lovers DEMO II development board together with online debugger PIC16 MCD2 produced by our company or together with online debugger ICD2 produced by Microchip can bring you a multiplier benefit The following points may illustrate how your choice was wise u X Rich board resources u Optimized modular design u Superior production technology u X Rich supporting examples u Low Selling prices u Comprehensive technical guidance u Perfect after service Y EL I Bae B a LE 1 MG rx m a I I 1 aa t ga F D M Lor TP zl i dI BH B SUCRSERREELES EE 00 0 0 N gaala ieie A trc SEH E mb a MA GIL LL HAH AB a MEL Ik ae ile e Wai s T 1 2 Board Resource Introduction 1 I O external output 2 40P 28P chip socket 3 Power module 4 Simulation interface 5 RS232 communication module Page 2 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd 6 DS18B20 module 7 SPI communication module 8 IIC communication module 9 LCD12864 and 1602 LCD module 10 A D converter module 11 Reset button 12 4 4 matrix keyboard module 13 Remote control receiver amp decoder module 14 six digital display module 15 8 on in turn light module 16 17 18 19 Independent button module otepper motor module B
34. must ensure that access jumper wire is in the connected state when not in use we must ensure that the jumper wire is in disconnected status Figure 4 11 DS18B20 5 examples about DS18B20 were included in the CD ROM for reference The schematic of this module is shown in Figure 4 12 WC C20 Ji U8 DSIRR N Figure 4 12 schematic of DS18B20 Page 19 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd 4 8 SPI Communication Module This module mainly shows the SPI communication protocol through access to the external device EEPROM 93LCXXX shown as Figure 4 13 Figure 4 13 93LCXXX EEPROM The module consists of the following components 1 983LCXXX EEPROM 2 coding switch 3 ROM WORD SIZE selection jumper wire Descriptions on this module as below 1 93LCXXX EEPROM data are included in the CD ROM 2 the SPI communication port of 93LCXXX SDI SDO and SCL are connected to the RC5 RC4 and RC3 of the communication port of MCU through the coding switch and the chip select signal connects to the RC2 pin of the MCU and therefore it can be controlled by hardware 3 When this module is in use we must ensure that the coding switch is in the connected state when not in use we must ensure that it is in disconnected status so as not to affect the normal operation of other modules 4 When using 93LCXXA ROM SIZE is 8 bits or 93LCXXB ROM SIZE is 16 bits the WORD SIZE jumper wire is
35. nzhen Co Ltd 4 3 Power Module The Power Development Board adopted the bridge rectifier circuits we need not consider the polarity of external power the output voltage range is 7 5 9 V and the DC or AC power with current more than 200 mA can be used directly The module is shown in Figure 4 4 Press the power switch and the whole board power supply is connected while otherwise the power supply is disconnected The module consists of the following major components 1 power input 2 rectifier filter regulator 3 4 power indicator the power switch Figure 4 4 power modules Power module schematic shown in Figure 4 5 JI S11 POWER Figure 4 5 schematic power modules Page 15 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd 4 4 4 4 Matrix Keyboard The module has the following main components 1 16 keys 2 3 4 up pull resistance coding switching interface socket P MTT ncun RR 4x4 matrix keyboard Descriptions on this module are as below 1 16 keys connected to the 8 pins in accordance with the mode 4x4 PORTC 2 the module is controlled by the coding switch When it is not used it is recommended to disconnect the switches so as not to affect other modules 3 you can practice the application by using the keyboards from other matrix through interface socket coding switch must be at a disconnected status 4 t
36. t external power supply Connect MCD2 to DEMO II P a ee 3 E OE DEBBOGEA fiviedase ITITI i rm PIC16 MCD2 pn a a Using USB connect MCD2 to PC ji Figure 3 2 MCD2 and DEMO II connection Step 1 via USB or serial cable connect MCD2 to a PC Step 2 connect an external 9V power supply to DEMO II Step 3 connect the MCD2 and DEMO II using a 20cm six core flat cable MCD2 and PC connectivity Connect MCD2 to PC serial port through RS232 communication port Serial communication is relatively slow and it is generally not recommended to use this method but in case the computer does not have a USB port or USB port can not be used this would be the only option To use this method you must first set the properties of PC communication port correctly Specific operations are Right click My computer Click Properties Open System Properties Open Hardware Option Click Device Management and open the device management window Show the Communication Port and its sub items t Right click the port that connects to the MCD2 and edit the properties of it After parameter setting according to the figure shown below click the Advanced button and get rid of the enable option use FIFO buffer requires 16550 compatible UART oave settings and restart your computer for settings to take effect Connect MCD2 to PC with USB port The USB cable provided along with the product is use
37. w select PIC16F877A in the second step as the target chip select Microchip MPASM Toosulilte as the compiling tool in the third step select KEY4x4 as the new project name the suffix can be omitted and the directory for saving the project is the same as that of the source After editing the source and establishing the project MPLAB interface will be shown as Figure 5 1 Dr 2 BA dj M DM Reese vic ape d RR E Checksem bia LE KEY4Ax4 mp Sours Fie 3 WE rds Auc E Header Fies E bet Fies C Library Files J Linker Scripts uu Oder Piles FICIEFITTT Figure 5 1 MPLAB interface after editing source code and establishing the project Page 30 of 33 DEMO II Copyright of Qianlongsheng Electronics Technology Shenzhen Co Ltd compiled results will be shown as Figure 5 2 We can see from the figure as BUILD SUCCEEDED which indicates that the compiling is successful and it has created a KEY4x4 HEX file under the directory of the project only compiling succeeds can it create such a file Build Version Control Find in Files Make The target E Wmcd demo 2XchengxuxKEYdxdVXKEYdzd Executing C Program Files Microchip MPASM SuiteXM Message 301 C PROGRAM FILES MICROCHIP MPASI SUITE Message 302 E XMCD DEMO2XCHENGX EEYdAEXdSEKEYdZ4d ASM Message 302 E XMCD DEMO2XCHENGXUIEEYAEXdSKEYdZ4d ASM Message 302 E XMCD DEMO2XCHENGX IEEYAEXdSEEYdZd ASM Message 302 E X
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