QIC Core
Contents
1. QIC Link connection Figure 9 QIC Link network connections Qc QIC Core 4 Core 2 QIC Core 3 Figure 10 Star network topology of QIC Link Quanser Consulting Inc 2002 QIC Processor Core Accessories Page 17 QIC PROCESSOR CORE MANUAL Quanser Consulting Inc 2002 QIC Processor Core Accessories Page 18 QIC PROCESSOR CORE MANUAL 4 SUPPORT SOFTWARE Programming of the QIC Processor Core can be achieved in a variety of ways Using the included support software such as the QIC Loader and the QIC Bootloader the user can quickly develop and test new applications Depending on the end use of the application the user may choose the QIC Loader approach over the QIC Bootloader approach or vise versa 4 1 USING THE QIC LOADER The QIC Loader approach allows programming of the QIC Processor Core while it is still in the user s circuit Using the loader approach is the more traditional of the programming methods in that the programmer erases the entire memory contents of the device and rewrites it with the user s new code Using this approach all areas of the memory space can be modified code memory data EEPROM memory and configuration memory Since this method allows setting of the code protection bits in the configuration memory registers it is usually the preferred method for final product deployme2. Write F4 Cancel ESC 2000 EHL elektronika Petr Kolomaznik http www ehl cz pic FREEWARE Figure 14 PIC Downloader interface window Once the file is loaded press Write or F4 to begin the programming process The reset button on the QIC Processor Core should be pressed at this time After a brief pause the download will commence If problems arise during the programming process check the following list of possible causes Make sure the serial cable is attached and that power is applied Becertain that the bootloader code has already been written to the device using either high voltage or low voltage programming Verify that the serial port and the baud rate are correct for the bootloader that is being used Quanser Consulting Inc 2002 Support Software Page 23 QIC PROCESSOR CORE MANUAL 5 SCHEMATICS The schematics provided in this section are for user reference only The schematics are Copyright Quanser Consulting Inc 2002 The information contained here may not be used for commercial purposes without the consent of Quanser Consulting Inc Use of the circuitry for educational purposes only is permitted provided that the user has purchased one QIC Processor Core for each circuit that is constructed For information on licensing the QIC Processor Core for commercial or other purposes please contact Quanser Consulting Inc Quanser Consulting Inc 80 Esna Park Drive Units 1 2 3
3. Markham Ontario Canada L3R 2R6 Tel 1 905 940 3575 Www quanser com GUANSER mailto gic quanser com 5 1 QIC PROCESSOR CORE V16 Quanser Consulting Inc 2002 Schematics Page 24 QIC PROCESSOR CORE MANUAL VCC JP2 CI luf C9 C10 22 y1 22p 1 i 2 VCC R3 10k U4A U3 TD 1l a 2 xo SN7407 E M IS2WKCT ND E 2 yo Y 15 RB7 1 Yi 1 RESET VCC 5 4 RB6 VCC RB6X 3 29 Z Z R4 6 10k R7 ip INH U4B 10k 10 2 DIR 3 a 4 JPL 9 gt Cc 1 de SN7407 2 T VEE Program es MC14053B RS 10k U4C cris 4 6 lt 5 SN7407 VCC R6 VCC 10k U4D J1 RIS 9 8 RxD 2 gt TxD Vt V SN7407 3 DTR 4 CTS C2 C3 C4 5 RTS 0 IuF 0 1uF 0 luF ak 6 GND 4 C5 luf PC 11 gt 10 SN7407 DB 9Pins Signal Description 1 Le 12 n 2 RxD Transmit to PC VEG 5 QICT 3 TxD Receive from PC 1 4 DTR Data In from PC SN7407 2 2 8 CTS Data Out to PC 3 aL 7 RTS Clock from PC QICLink B GND Ground Quanser Consulting Inc QIC 20 MHz U2 OSCI CLKIN OSC2 CLKOUT e ol MCLRVPP RCU TIOSO TICKI iy ee s A RAO RCI TIOSI CCP2 5 Re TE RA2 5 Ral RCOGCRI 20 RC3 RB3 4 py RA RC3 SCK SCL 55 83 TEE Bas RAS ROWSDISDA RC ED RAS 8 gt RAMTOUKI RCS SDO 27 RC6 RB6X 7 RBO 36 RAS SS RC6 TXICK 4 29 RC7 RB7X 8 RBI 37 RBOINT IDE 21 RDO REO 9 mpi 38
4. RBI RDO PSPO 4 57 Ror 10 39 RB RDI PSP1 35 2 li Res 4 RBS RD2PSP2 7 54 Ros N REL 2 ns 42 RBA RDS PSPS 4750 Ros NVa 13 nm 43 RE RDAPSPA 31 RDS RAO 14 mp 44 RBC RDS PSP5 135 RD6 RAI 15 T RB7 RDO PSP6 33 pr NL RA16 5 NC RDT PSP7 9 Reo NL RAS 17 Sag NC REO RD 15 18 2549 NC REIAVR Ti as 19 NC RE2 CS Re EM GND20 PICIGF877 20VL RCo 21 RC1 22 RC2 23 RC3 24 RC4 25 RCS 26 RC6 27 RC7 28 CLK29 3 D a DP2 RDO 32 RD1 33 TXB RD234 RD3 35 MAIS2WACT ND RD4 36 Ul RDS 37 oN ror RS TT R2IN R2OUT 7 To L TN mor er e L DIN T20UT 3 C ca xc c7 k ci luf MAX232CWE Gr f ac Schematics Page 25 Quanser Consulting Inc 2002 QIC PROCESSOR CORE MANUAL Alphabetical Index breadboard 2 compiler 3 High Voltage Programming Procedure 12 In Circuit 10 Low Voltage Programming Procedure 12 manual II Microchip 4 PIC16F877 3 PIC16F87X 2 pin locations 4 Pinout 6 Pinout 7 pins 4 port II programming 4 programming mode 11 QIC Ip QIC Processor Core 1 Quanser II RB6 10 RB7 10 schematics 4 Serial Programming 10 Serial Support 15 translate II Quanser Consulting Inc 2002 Schematics Page 26
5. pin 4 of the QIC core A good source for this is the power going to pin 36 VCC Connect the programming cable to J1 the programming serial port The other end of the cable should connect to the serial port of the PC Apply power to the QIC Processor Core Start the QIC Loader and select an Intel Hex formatted file to load Make sure that the correct serial port is selected The default port is COM1 Select a different one by selecting Setup gt Serial Port and selecting from the available choices Click the Write button to begin the programming process Follow the directions on the screen The Reset button referred to on the screen is the reset button on the QIC Processor Core Quanser Consulting Inc 2002 Support Software Page 20 QIC PROCESSOR CORE MANUAL A dialog will appear confirming the success or failure of the programming procedure In most cases the programming will complete successfully However there are times when errors will occur The error message shown in Figure 12 typically means that the PC cannot detect the hardware This error will occur before the programming begins rrra A x G FAILED to detect the hardware Check the serial port Figure 12 Programmer error message Typical causes of this are Serial cable unplugged from the PC or the QIC Processor Core Wrong serial port selected in the QIC Loader Power is not applied to the QIC Processor Core
6. Designed to fit into a standard prototyping breadboard the QIC allows the user to design interface circuitry on a breadboard to quickly test new ideas Figure 1 The QIC Processor Core Quanser Consulting Inc 2002 QIC Processor Core Page 2 QIC PROCESSOR CORE MANUAL 2 1 PROCESSOR CORE FEATURES Designed around the PIC16F877 microcontroller the QIC Processor Core allows the user to take advantage of the vast amounts of freely available source code on the Internet No special tools are required to program the processor core the programming support hardware is already included The user just needs to use the QIC Loader to download a new program The code can be compiled using any of the available compilers for the PIC16FXXX series of microcontrollers Based on the Microchip PIC16F877 e 8K Flash program memory 368 bytes RAM e 256 bytes EEPROM memory e 14 hardware interrupts 3 hardware timers 10 bit A D 8 channels 10 bit PWM 2 channels RS 232 compatible serial port connects directly to the PC n circuit serial programming support hardware built in On board reset switch e Single 5V supply required Quanser Consulting Inc 2002 QIC Processor Core Page 3 QIC PROCESSOR CORE MANUAL 2 2 PROCESSOR CORE PIN NAMES Figure 2 shows the location of the pins and their associated names for the QIC Processor Core For detailed information on the PIC microcontroller programming
7. port connector the device will be able to communicate with the QIC Processor Core Signals transmitted from the PC TxD are received by the PIC on RC7 which is connected directly to the microcontroller s USART Using the USART allows for the greatest flexibility in serial support while minimizing the required software overhead PIC Tx RC6 pin 25 TTL gt RS232 Jl PCRxD POTD 5 lt PIC Rx RC7pin26 gt 3 4 RS332 gt TIL 5 GND C p Tx Rx SND 23 RS232 gt TTL QICLink GND TTL gt RS232 Figure 6 Serial interface logical diagram Similarly serial data is shifted out of the USART on RC6 and is sent to the PC s RxD pin on the serial port The serial interface uses a combined RS232 to TTL TTL to RS232 converter to provide the proper signal levels for the PC and the PIC16F877 The QIC Link port echoes the serial data received at J1 on connector J2 By connecting additional devices to the QIC Link port they will also be able to communicate with the host PC or host device The full serial interface schematic is shown in Figure 7 Quanser Consulting Inc 2002 QIC Processor Core Accessories Page 14 QIC PROCESSOR CORE MANUAL J1 1 RxD 2 TxD 3 RC6 4 L DP2 MA152WACT ND RC7 6 y V V PC 12 1 QICT Ul En RO ilu nc D TN TI OUT 4 yw ICLink EE 0 T2 IN T2 OUT 7 3 Ci c m c7 ls Cl C2 ar f VE V
8. u D um Fu MAX232CWE RS232 Interface Figure 7 The serial interface circuitry 3 2 1 RS232 COMPATIBLE SERIAL PORT Details of the connections for the serial port interface are shown in Figure 8 These connections will need to be made in order to connect the PC to the QIC Processor Core The connections shown are for a female DB9 connector Note that only the signals TxD RxD and GND are required for serial communications The other lines are required for in circuit serial programming only but are shown here for reference Referring to Figure 7 the MAX232CWE IC takes care of the conversions between TTL and RS232 All signals at connector J1 are expected to be at standard RS232 levels To PC DB 9 Pins Signal Description 2 DRxD Transmit to PC 3 2 TxD Receive from PC 4 3 DTR Data In from PC 8 4 CTS Data Out to PC 7 5 RTS Clock from PC 5 6 GND Ground azi A D a oo XQ a Figure 8 Serial interface to PC wiring When writing software to use the serial port the user must be careful to specify RC6 for transmitting serial data and RC7 for receiving serial data Some compilers allow for software implemented serial ports on any I O pins of the device The user will also need Quanser Consulting Inc 2002 QIC Processor Core Accessories Page 15 QIC PROCESSOR CORE MANUAL to take care of the RS232 to TTL level conversion RS232 level signals should not be directly applied to any pins except the serial port i
9. Damaged serial cable The causes listed above should be checked to remedy the problem before trying to continue Other errors may occur during the programming procedure The error shown in Figure 13 is indicative of a programming error EC x G FAILED at address 0000 Figure 13 Typical error message encountered during programming Quanser Consulting Inc 2002 Support Software Page 21 QIC PROCESSOR CORE MANUAL Typical causes of this are Serial communications error check symptoms of failed hardware first Jumper JP1 has not been installed for programming No programming voltage applied for high voltage programming or PGM voltage not present for low voltage programming Reset button not pressed when requested by the software Code protection bits are set in the configuration memory area Erase the entire device before continuing Processor is faulty or damaged Use of the programming software is fairly straight forward There are additional tools for viewing the program and data memory as well as for erasing an PIC16F877 and restoring to its default condition 4 2 USING THE QIC BOOTLOADER The QIC Bootloader approach takes advantage of the processor s ability to reprogram its own code space To start a small program called the bootloader is programmed into the device using the QIC Loader This bootloader occupies a very small portion of the code space near the top of memory Once loade
10. PROM Memory Programming Specification document number 30262c 30262c pdf www microchip com 2 Note that if the LVP low voltage programming bit is cleared disabling LVP this method of programming will no longer be available The user will have to resort to high voltage programming Quanser Consulting Inc 2002 QIC Processor Core Accessories Page 11 QIC PROCESSOR CORE MANUAL Apply 5VDC to the PGM pin pin 4 of the QIC core A good source for this is the power going to pin 36 VCC Connect the programming cable to J1 the programming serial port e Start the programming software and follow the directions Serial Programming port JP1 Programming Jumper JP2 QIC Link High Voltage Serial Port Programming Header Figure 4 Serial pin locations Quanser Consulting Inc 2002 QIC Processor Core Accessories Page 12 QIC PROCESSOR CORE MANUAL Serial Programming port VCC 5VDC QIC pin 1 PGM pin 4 low voltage mode Short this jumper JP1 PIC16F877 JP2 GND 12V UU Apply programming voltage here High voltage mode Figure 5 Serial programming and connection setup details Quanser Consulting Inc 2002 QIC Processor Core Accessories Page 13 QIC PROCESSOR CORE MANUAL 3 2 ON BOARD SERIAL SUPPORT The on board serial interface is shown in logical format in Figure 6 With an external connection to J1 the serial
11. QIC PROCESSOR CORE V16 User s MANUAL QUANSER CONSULTING INC 2002 QIC How to contact Quanser Consulting 905 940 3575 Telephone 905 940 3576 Facsimile 80 Esna Park Drive s Markham ON Mail Canada L3R 2K8 http www quanser com qic Web mailto qic quanser com Information about QIC mailto support quasner com Support for QIC mailto info quanser com General information User s Manual QIC is a trademark of Quanser Consulting Inc PIC and PIC16F877 are a trademarks of Microchip Technology Inc Other brands and their products are trademarks or registered trademarks of their respective holders and should be noted as such 2002 Quanser Consulting Inc All rights reserved This work may not be translated or copied in whole or in part without the written permission of the copyright holder except under the terms of the associated software license agreement No part of this manual may be photocopied or reproduced in any form The use of general descriptive names trade names trademarks etc in this publication even if the former are not especially identified is not to be taken as a sign that such names as understood by the Trade Marks and Merchandise Marks Act may accordingly be used freely by anyone Printed in Canada Quanser Consulting Inc 2002 Indexes Page II QIC TABLE OF CONTENTS PINTRODUGTION ciscsssscsssassssacncssscnsssesdscsoscce
12. and special function details refer to the Microchip website at http www microchip com Document number 30292c provides detailed programming information on the PIC16F87X series of microcontrollers In most instances the signal from the microcontroller is directly available on the pins of the QIC Processor Core Please refer to the schematics section for details on this 2 3 PROCESSOR CORE PIN LOCATIONS Figure 2 also shows the pin locations and their numbering Note how the pins are offset in their alignment to prevent the QIC Processor Core from being inserted incorrectly The pins are numbered consecutively from 1 counter clockwise from the top left Quanser Consulting Inc 2002 QIC Processor Core Page 4 QIC PROCESSOR CORE MANUAL Serial Programming port PIN 1 Le PIN 36 RBO INT VCC RBI RD7 PSP7 RB2 RD6 PSP6 RB3 PGM RDS PSP5 Ret RD4 PSP4 RB5 RD3 PSP3 RB6 PGC RD2 PSP2 PB7 PGD RDI PSPI PEO RD AN5 RDO PSPO PIN 28 JP1 Programming Jumper PIN 10 RE1 WR AN6 RE2 CS AN7 CLK RAO ANO RC7 RX DT RAI ANI RC6 TX CK RA2 AN2 VREF IRC5 SDO RA3 AN3 VREF RC4 SDI SDA RA4 TOCKL IRC3 SCK SCL RAS SS AN4 RC2 CCPI GND IRC1 T1OSO CCP2 IRCO TIOSO TICKI PIN 19 High Voltage Programming Header Serial Port Figure 2 The QIC Processor Core Pin locations and functions Quanser Consulting Inc 2002 QIC Processor Core Page 5 QIC PROCESSOR CORE MANUAL QIC Core Pin Description
13. asoovecscdecseasecassoscoecdasseocecssansecss NESES asss Sss 1 2 QIC PROCESSOR CORE ssnmeseeenenenenennsenenneneneneneseenenssese 2 2 1 Processor Core Features sssssssssesssssssssenensenseeseeeeesennsse 3 2 2 Processor Core Pin Names esssssssesssseessseneeseeeneneenenenseses 4 2 3 Processor Core Pin Locations 4 3 QIC PROCESSOR CORE ACCESSORIES ssennenneneneenense 10 3 1 In Circuit Serial Programming Hard wa ccscssssccsssscsssssssssssccsssssessescess 10 3 1 2 High Voltage Programming 11 3 1 2 1 High Voltage Programming Procedure 12 3 1 3 Low Voltage Programming 12 3 1 3 1 Low Voltage Programming Procedure 12 3 2 On Board Serial Support eee eee eee eee eee eene teen ette sete sten seta seta setae 15 3 2 1 RS232 Compatible Serial Port 16 3 2 2 QIC Link Serial POtt 2 eerte ctn eee ent E rre van ee cs 17 4 SUPPORT SOFTWARE eere etes eese tonser setas osooso is sees sonata sees sesso setae ta Si ooe 20 4 1 Using th QIC Loader 5 error rtr r een PY ta anre oer a Fa orte rao E ooo e Ene eara rb aro o unn 20 4 1 1 High Voltage Programming 21 4 1 2 Low Voltage Programming 21 4 2 Using the QIC Bootloader ce eere ee eee eee ese seen setate eee to st ao ee esee eaae ee 23 5 SCHEMATICS 25 5 1 QIC Processor Core V 16 eere reet ea reete poer ea nore rea nn oer enar er
14. d upon processor reset the bootloader looks for a serial signature at the serial port If it receives this signature it then goes into the bootloading mode otherwise it begins executing the previously loaded user code In the bootloading mode an Intel Hex type file is transferred to the device using a standard serial protocol Typically a serial terminal program such as Hyperterminal or the PIC Downloader can be used to send a new file The previously installed bootloader receives the code and reprograms the PIC This method is extremely useful for rapid development of new designs In order to use the bootloader the bootloader code must be downloaded to the processor first Otherwise the bootloading will not be possible Once the bootloader is installed neither high voltage programming nor low voltage programming will be required For this reason the user may wish to disable the low voltage programming Quanser Consulting Inc 2002 Support Software Page 22 QIC PROCESSOR CORE MANUAL option by setting the appropriate configuration bits Once the bootloader code is loaded into the program memory only the serial port connections will be required To use the PIC Downloader start the program and select an Intel Hex formatted file for download Search for this file by clicking the search button or pressing F2 TE PIC downloader 1 07 CO EI File 8IC TEST HEX i 2 Port COM1 13200 Bd J EEPROM m Info m
15. g purposes 5 RTS PC Ready To Send line Used for programming purposes 6 GND Ground line Table 3 Serial Programming port connections QIC Link Pin Descriptions Pin Number Pin Name Description 1 QIC Link Rx Data transmitted from other QIC modules is sent to the serial port bypassing the QIC RS232 level This data is seen by the host only 2 QIC Link Tx Data received at the serial port is retransmitted via this pin to other QIC modules RS232 level The data appears as if it came from the host directly 3 GND Ground connection Table 4 QIC Link serial port connections Quanser Consulting Inc 2002 QIC Processor Core Page 8 QIC PROCESSOR CORE MANUAL High Voltage Programming Pin Descriptions Pin Number Pin Name Description 1 VHVP 12VDC input for high voltage programming 2 GND Ground connection for high voltage programming Table 5 High Voltage programming support connections 3 QIC PROCESSOR CORE ACCESSORIES To simplify the development process the QIC Processor Core has built in serial support and in circuit programming support This section has detailed information on these two interfaces 3 1 IN CIRCUIT SERIAL PROGRAMMING HARDWARE To make programming of the QIC Processor Core easier the circuitry required for in circuit serial programming has been included directly on the board The circuitry is designed to allow for in circuit
16. in Name Names Description PORTC is a bi directional I O port 19 RCO T1OSO T1CKI Timer1 oscillator output or Timer1 clock input 20 RC1 T1OSI CCP2 Timer1 oscillator input or Capture 2 input Compare 2 output PWM2 output 21 RC2 CCP1 Capture 1 input Compare 1 output PWM 1 output 22 RC3 SCK SCL Synchronous serial clock input output for SPI and PC modes 23 RC4 SDI SDA SPI data in in SPI mode or data I O in PC mode 24 RC5 SDO SPI data out in SPI mode 25 RC6 TX CK USART Asynchronous transmit or synchronous clock 26 RC7 RX DT USART Asynchronous receive or synchronous data 27 CLK Processor clock source This is an external clock 20MHz for use with external peripherals PORTD is a bi directional I O port It also serves as the parallel slave port when interfacing to a microprocessor bus 28 RDO 29 RD1 30 RD2 31 RD3 32 RD4 33 RD5 34 RD6 35 RD7 36 VCC 5VDC Power Table 2 Pinout description for pins 19 36 Quanser Consulting Inc 2002 QIC Processor Core Page 7 QIC PROCESSOR CORE MANUAL Serial Programming Port Pin Descriptions Pin Number Pin Name Description 1 RxD PC Receive data line RS232 level Data from the QIC is transmitted on this line to the PC 2 TxD PC Transmit data line RS232 level Data is received by the QIC on this line from the PC 3 DTR PC Data Terminal Ready line Used for programming purposes 4 CTS PC Clear To Send line Used for programmin
17. ng cable to J1 the programming serial port e Start the programming software and follow the directions 3 1 3 LOW VOLTAGE PROGRAMMING With the configuration register of the PIC16F877 set appropriately it is possible to program the device using only 4 5VDC By default when fully erased the PIC16F877 will allow low voltage programming LVP To put the PIC16F877 into low voltage programming mode the user will need to apply 5VDC to the PGM pin RB3 or pin 4 of the QIC Processor Core see Figure 5 Note that when in this mode RB3 cannot be used for any other purpose In effect this pin is lost to the user under software control The only function of the pin is to put the PIC16F877 into low voltage programming mode when the LVP bit of the configuration register is set As with the high voltage programming mode the user can either use the QIC Loader or write their own software to program the device Microchip has documents detailing in circuit serial programming of the 16F877 processor Please note that the PIC16F877 will enter programming mode when both RB6 and RB7 are held low and 5 VDC is applied to the PGM pin pin 4 of the QIC core With these conditions present pressing the reset button will guarantee that the PIC16F877 will enter programming mode when the reset switch is released 3 1 3 1Low VoLTAGE PROGRAMMING PROCEDURE Install a jumper on JP1 shorting the pins together 1 Please consult the Microchip document EE
18. nt Po o File Program Setup Window Help Filename alC TEST HEX Browse QIC_TEST HEX Programming Bl Figure 11 QIC Loader window Select a file by clicking on Browse Programming can be accomplished using either high voltage or low voltage mode Depending on the programming mode selected follow the appropriate procedure below Quanser Consulting Inc 2002 Support Software Page 19 QIC PROCESSOR CORE MANUAL 4 1 1 HIGH VOLTAGE PROGRAMMING Install a jumper on JP1 shorting the pins together Apply 12V to JP2 12VDC should be on pin 1 ground GND on pin 2 Connect the programming cable to J1 the programming serial port The other end of the cable should connect to the serial port of the PC Apply power to the QIC Processor Core Start the QIC Loader and select an Intel Hex formatted file to load Make sure that the correct serial port is selected The default port is COM1 Select a different one by selecting Setup gt Serial Port and selecting from the available choices Click the Write button to begin the programming process Follow the directions on the screen The Reset button referred to on the screen is the reset button on the QIC Processor Core A dialog will appear confirming the success or failure of the programming procedure 4 1 2 LOW VOLTAGE PROGRAMMING Install a jumper on JP1 shorting the pins together Apply 5VDC to the PGM pin
19. nterface or the QIC Link interface 3 2 2 QIC LINK SERIAL PORT The QIC Link serial port is intended to facilitate multi device communications The topology of the communication network is host to slave What this means is that the host PC can communicate with any of the QIC Processor Core modules The QIC cores can in turn talk to the host PC Refer to Figure 6 and Figure 7 for details on the implementation of this circuit Figure 9 details the network connections necessary to link several QIC Processor Core boards together Although it appears that data flows through the previous QIC core in the network chain this is not the case QIC cores connected in this manner will only be able to talk directly to the host PC Other QIC cores will not see the serial communications data However every QIC on the network will see serial communications sent from the host PC For this reason the user will need to implement some type of protocol to manage the network traffic Each QIC Processor Core on the network will need to be assigned an address so that it can determine if the data being sent is intended for it Many different methods exist for implementing this type of network negotiation The exact type of protocol used will depend on the actual application requirements Quanser Consulting Inc 2002 QIC Processor Core Accessories Page 16 QIC PROCESSOR CORE MANUAL Serial port connection a _ Smp gp gp
20. ort connections Quanser Consulting Inc 2002 Indexes Page V QIC PROCESSOR CORE MANUAL 1 INTRODUCTION The QIC suite of development components is aimed at simplifying the development of microcontroller based applications By integrating several commonly used functions into one convenient package development time is greatly reduced The user can quickly commence development of the external interfaces and the software rather than spend time building the base microcontroller system Using the QIC system as a reference design can greatly reduce implementation time of your designs The QIC system consists of two main hardware components The first is the QIC Processor Core This component hosts the microcontroller and the associated components to facilitate communications and programming The second component is the QIC Carrier Board which hosts an array of interfaces and signal conditioning options Several different carrier boards are available and are suited to different applications Together the two boards form an excellent reference design for many projects such as robotics controllers and various signal processing applications Quanser Consulting Inc 2002 Introduction Page 1 QIC PROCESSOR CORE MANUAL 2 QIC PROCESSOR CORE Based on the PIC16F87X series of microcontrollers the QIC Processor Core offers all the features of the processor plus the added ease of interfacing programming and prototyping
21. po abe Pesos be Pee n rar n 26 Quanser Consulting Inc 2002 Indexes Page III QIC FIGURE INDEX Index of Figures Figure 1 The QIC Processor Core siennes 2 Figure 2 The QIC Processor Core Pin names and functions 5 Figure 3 In circuit serial programming support circuitry eeeesseeeeeeeeeneneen 11 Figure A Serial pin locations ast ec e pt ee e ies 13 Figure 5 Serial programming and connection setup details eeeeeess 14 Figure 6 Serial interface logical diagram esee 15 Figure 7 The serial interface circuitry ss 16 Figure 8 Serial interface to PC wiring ss 16 Figure 9 QIC Link network connections ss 18 Figure 10 Star network topology of QIC Link ss 19 Figure 11 QIC Loader window Select a file by clicking on Browse 20 Figure 12 Programmer error message ssssseeseeeeeeeeee eee nennen nene 22 Figure 13 Typical error message encountered during programming 22 Figure 14 PIC Downloader interface window ss 24 Quanser Consulting Inc 2002 Indexes Page IV QIC INDEX OF TABLES Index of Tables Table 1 Pinout description for pins 1 18 Table 2 Pinout description for pins 19 36 Table 3 Serial Programming port connections Table 4 QIC Link serial port connections 0000 10 Table 5 High Voltage programming supp
22. rogramming voltage is applied to header JP2 see Figure 5 12VDC should be applied to pin 1 and the ground for the external source should be connected to pin 2 Refer to Figure 3 for details Applying the voltage at this connector supplies the required high voltage signal to put the PIC16F877 into the programming mode The voltage for high voltage programming can be obtained from any regulated external power source Using the QIC Loader the user can quickly program the device with their own code In addition the user can write their own programmer to use the on board in circuit serial programming hardware Microchip has documents detailing in circuit serial programming of the 16F877 processor Please note that the PIC16F877 will be put into programming mode when both RB6 and RB7 are held low and MCLR is brought up to the required high voltage programming voltage This condition is most easily obtained by setting up the high voltage programming voltage holding RB6 and RB7 low and waiting for the user to Quanser Consulting Inc 2002 QIC Processor Core Page 10 QIC PROCESSOR CORE MANUAL press the reset button on the QIC Processor Core This procedure guarantees that when the reset button is released the PIC16F877 will go into the program mode 3 1 2 1 HicH VoLTAGE PROGRAMMING PROCEDURE Install a jumper on JP1 shorting the pins together Apply 12V to JP2 12VDC should be on pin 1 ground GND on pin 2 Connect the programmi
23. s Pins 1 18 QIC Pin Pin Alternate Number Name Names Description PORTB is a bi directional I O port The pins on this port can be programmed to use the internal weak pull ups 1 RBO INT Also serves as an external interrupt pin 2 RB1 3 RB2 4 RB3 PGM Applying 5V volts will allow low voltage programming when the configuration bits are set appropriately 5 RB4 6 RB5 7 RB6 PGC Interrupt on change pin Also used as the serial programming clock 8 RB7 PGD Interrupt on change pin Also used as the serial programming data PORTE is a bi directional I O port 9 REO RD AN5 Read control for the slave port or analog input 5 10 RE1 WR AN6 Write control for the slave port or analog input 6 11 RE2 CS AN7 Chip select for the slave port or analog input 7 PORTA is a bi directional I O port 12 RAO ANO Analog input O 13 RA1 AN1 Analog input 1 14 RA2 AN2 Vreer Analog input 2 or negative analog reference voltage 15 RA3 ANS Vrer Analog input 3 or positive analog reference voltage 16 RA4 TOCKI Clock input to TimerO timer counter open drain type 17 RA5 SS AN4 Analog input 4 or slave select for the synchronous serial port 18 GND GND Ground power return pin Table I Pinout description for pins 1 18 Quanser Consulting Inc 2002 QIC Processor Core Page 6 QIC PROCESSOR CORE MANUAL QIC Core Pin Descriptions Pins 19 36 QIC Pin Alternate Number P
24. serial programming when required but to leave the programming pins available for other functions when the device is not being programmed To enable this dual configuration a jumper JP1 is used to select between programming mode and normal operation In the event that the programming pins RB6 and RB7 are not required for the user s application the jumper can be left in place without affecting the normal operation of the system In effect installing the jumper JP1 connects the pins RB6 and RB7 to the in circuit serial programming hardware Removing the jumper connects pin RB6 to pin 7 of the QIC core and pin RB7 to pin 8 of the QIC core Figure 3 shows the circuit details that achieve this functionality Quanser Consulting Inc 2002 QIC Processor Core Page 9 vec R3 10k U4A 1 2 2 SN7407 VCC R4 VCC 10k U4B 3 4 t R2 vec SN7407 10k R8 n DPI 10k i R5 I ie 10k M 3 DIR bu MCLR 4 CTS 6 bi U3 100 i o n 5 RTS 12 xo x 14 GND SN7407 VCC Bx 1 MAISZWKCT ND m s a 2 __ vo y B RB7 E 10k RB7X Yi U4D 9 8 VCC 20 z HES S S RB6X ZI SN7407 6 ae ca U4E 10k 33 u s 10 JPL 9 c 1 SN7407 5 7 vgg U4F Program MCI4053B 4 s 12 SN7407 QIC Programmer Figure 3 In circuit serial programming support circuitry 3 1 1 3 1 2 HIGH VOLTAGE PROGRAMMING P
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