Rapid40iXL™ PIC Prototyping PCB User Manual
Contents
1. PIC_PWR PIC_PWR cs 10 92 Gu In Dut Vregl cs OluF GND i 32 u a par Vad vad To 220 RL RBO INT py 470 RBI in In Dut 35 Vrege RBe H gt A RBS gt GND Ptt_PwR RB4 HEL DC Power GND va RBS Connector Ty ao Bes ta oF BS ai RBG 2 e p g 7 fcemiters 1 gt 47UuF Olu O luF GRN LED RB jee Re McLR H RAO 7 RAQ MCLR c6 19 RAL HORA RB7 O _ sv osc Raz Eo Rae RBG Oo RA3 HO RA RBS o e s RA4 TOCKI p RA4 RB4 Q _ 5 y i AS O RA x ux 7 5 5v 5 5v i RAS HS RAS RBS asce REO o REO RB ouil BUZZ C7 x1 REL fg ORE RBL O01 ager RE _O RER REQ Q _________ V PIEZO BUZZ e PEIKAR BNEZER RCO H2 o RCO RD O ________ C R9 R10 Ri Rie RCL Heo REI RD o 10k 2 10k 2 10k 10k Rrepg 0 Re R5 o 2 RC3 F350 RC3_ s RD4 0 S R4 RC4 ioe RC4 RD3 Q ____ a N 10k RCS jo RCS RB o N2222 A 5 BUZ RCE gt o RCE RII o d Sa O LEDI RCT RC7 RDO O _ a LeDe b BS LEDS RDO PSH LED4 RDL PSP LL dois O SWL RDe Haz Regist hed Swe RD3 X ZA e sw3 RD4 SS Z P Oo Sw Xf Ly Ly LY sw gts S5 30 LEDI LED LED3 LED4 RD7 O l e O O Vss Vss olsm ol swe oO swa oO swa rr fa 12 JUL SERIAL Sv CONFIG JU2. Rapid40iXL PIC Prototyping PCB User Manual DH Miers com er DH MicroSystems Inc Copyright 2004 DH MicroSystems Inc All trademarks mentioned in this document are the property of their respective companies Rapid40iXL PIC Prototyping PCB User Manual Description Features This is a PCB designed to facilitate the rapid prototyping of a device based on a 40 pin Microchip PIC microcontroller To allow users to focus on their application we take care of key housekeeping tasks associated with a microcontroller based device To this end our PCB features several power supply options a 40 pin footprint for the microcontroller and several oscillator options Users can construct their application circuit in our generous a generous prototyping area with space available for several IC s and or numerous discrete components Like our Rapid40i prototyping board the Rapid40iXL board has common I O components it has the same 4 push buttons 4 LEDs and a buzzer It also has a RS232 interface that can be jumper configured for DCE configuration for attachment to a PC or as DTE for attachment to another prototyping board no null modem cables required See last page of this document for detailed serial interface information This board is constructed as a 2 layer through hole board with clearly marked components on its silkscreen layer and ample space between compo
3. This board offers a jumper configurable 232 interface to allow the user to connect it to a PC or to another similarly equipped prototyping board Details regarding configuring this board as DTE or DCE can be found below z the labeled pins at the bottom 5V and GND for your Assembly circuit is available on both left and right sides of the Stock parts in their appropriate locations paying proto area in labeled strips attention to proper component alignment Solder components to the PCB with a low wattage soldering 232 Serial Interface Configuration JUL SETTING JUL SETTING JUL SETTING oO 6 do c ooo o oo o of ip de o DTE 1 lollollollol o DCE 1lollol o o lo DEE HANDSHAKE LOOPED N 6 s 6 wN e HON 1 O o RxD t LO 120 6 TxD t O Oe RTS O Bm CTS ae TxD i RxD t C RxD t O _ Of gt CTS Q lt RTS a ik kee ie Ox are ers 5 0 zy IO A i 5 i f DB9F 7 DB9F DB9F RS232 RS232 RS232 232 Interface Notes gender on the opposite end of the serial cable is appropriate for DTE and can be plugged directly into a DCE configured board DCE Setting the JU1 jumpers as shown in the center figure above setups the DB9 in a DCE configuration This configuration can be used to connect to a PC serial port or another prototyping Note the arr
4. SW4 tactile push button switches LED1 LED2 red x2 and yellow x2 LEDs BUZZ 5V piezo buzzer Q1 2N2222 TO 92 NPN transistor R4 amp R9 R12 10k Ohm 1 8W resistors R5 R8 470 Ohm 1 8W resistors If purchased as a kit including parts to complete the RS232 interface then it also includes IC2 232 driver IC and 16 pin socket DB9F connector JU1 2x5 pin header amp 4 shorting jumpers C9 to C13 0 1uF capacitors C14 47uF electrolytic capacitor Note parts are not provided to fill all PCB footprints The user should stock the board appropriately according to the requirements of any particular design see construction options discussed below datasheet for the PIC you select for the assignment of the PGM pin JU3 isolates the PIC from the boards power supply it should be disconnected when the prototyping board is attached to an ICSP programmer This jumper eliminates the possibility of excessive loading of the ICSP programmer by other board components or by the users application circuitry Re jumper JU3 when the ICSP programmer is disconnected and the board is to be powered via the onboard power supply If you are not planning on using an ICSP programmer JU2 can be omitted JU3 can just be permanently shorted with a bit of component lead and D2 can be replaced with another bit of component lead Oscillator Options Microcontroller Options Several oscillator options are available with this board cer
5. MPER ane PGM PGM Pin Boag o DTE Selector C10 1ce o Sv PIC_PWR is O luF AT i i O 0 0 Ni tte or Veo 2 Bog o DCE 3 RB3 g PGM gt 1c V 5 lt RBS gt RBS PGC R on Rene l RB7 PGD 47uF D luF a yes g i C13 BE o sB DCE coen RES GND irae cll 7 2 Our oh OluF 3 lt A Cl F athens MCLR 6 afea UY 1 Jue PIC PWR F Sa oF Disconnect 1 pale c pEr JUL ICSP n o Connector ce ea 5 mo Our Sigs J Yo 12 13 doo 0 lt RxD T Rlout Riin H3 2 3O MCLR TxD 10 Tlin Tlout 7 DBOF a RTS 3 Ten Teout Hi JUL Rees 2 Oe ae CTS Rout Rein as GND praes D luF Ice 15 ET Construction Partlist If you purchased this as a kit then it included the following components e Printed circuit board IC1 40 pin socket X1 4MHz ceramic resonator VREG1 78L05 voltage regulator TO 92 DC power JU1 ICSP header JU2 ICSP header JU3 Jumper block with shorting jumper C1 47uF electrolytic capacitor C2 C4 C5 C8 C9 amp C15 0 1uF capacitors R1 470 Ohm 1 8W resistor R3 10k Ohm 1 8W resistor D1 Green LED D2 1N4148 diode Copyright 2004 DH MicroSystems Inc All trademarks mentioned in this document are the property of their respective companies Rapid40iXL PIC Prototyping PCB User Manual Construction Cont Partlist cont If it was purchased as a kit including parts to complete the user I O circuitry then it also included SW1
6. TO 92 and TO 220 packages kits ship with a TO 92 78L05 Note install only one voltage regulator when assembling your board Keep in mind the current requirements of your circuitry plus the microcontroller when you are selecting an appropriate voltage regulator Depending on the requirements for the regulator you select C1 C2 C3 and C4 may or may not be required and their values will vary Refer to the manufacturers datasheet for your regulator you select for recommendations A wall adapter can provide power when the DC power receptacle is installed A 2 1mm ID 5MM OD DC power plug with a positive center conductor is required A bench supply can also be used in this case omit the power receptacle and solder in red and black wires to the pins labeled Vin and GND respectively Voltage should be 7 5 12VDC A power on LED may be installed by stocking R1 and D1 a green LED Copyright 2004 DH MicroSystems Inc All trademarks mentioned in this document are the property of their respective companies Rapid40iXL PIC Prototyping PCB User Manual Construction Cont 232 Interface Options iron Lastly trim off excess leads and clean off flux residue if required with an appropriate solvent Construct your own circuitry in the open prototyping area Microcontroller pins are accessed through the labeled strip of pins at the top of the proto area I O components are accessed through
7. amic resonator crystal oscillator and RC oscillator kits ship with a 4MHZ ceramic resonator Pertinent oscillator parts are R2 C6 C7 and X1 Select these components per instructions found in Microchip datasheets for the microcontroller that you select for use This board will support any 40 pin DIP packaged Microchip PIC microcontroller The pin descriptions depicted in the schematic on the previous page and on our PCBs represent only basic port definitions for each pin Refer to the Microchip datasheet for all the features and alternate pin definitions for the microcontroller that you select for use R3 C8 and D2 are attached to the MCLR pin D2 is added for ICSP compatibility These components can be omitted and a new reset circuit can be constructed in the prototyping area per instructions found in the Microchip datasheet for your microcontroller Power Supply Options ICSP Note refer to Microchip datasheets and appnotes for information on the isolation of ICSP related pins ICSP signals are available on JU2 refer to the schematic for pin signal assignments Depending on what PIC is selected for use the PGM pin may be RB3 or RB5 to configure for either short either not both position 3 or 5 on the jumper labeled PGM with a short length of component lead left over from the construction of this board Refer to the Microchip This board will support several different voltage regulators in both
8. ect info code examples and links to PIC related sites Beginner users might also consider the books published by Square 1 Electronics They can be found at www sq 1 com This list is by no means comprehensive Many other excellent websites and publications are available and this list is only intended as a starting point for the beginner e Footprints provided for either TO 92 or TO 220 voltage regulators e Footprint provided for DC power receptacle e Power on LED User I O Options e 4 push buttons e 4LEDs e Piezo buzzer e RS232 interface Requirements In order to assemble and use this board a user needs to have basic electronic tools and some skill in their usage and an 40 pin PIC microcontroller and the tools required to write code and program the executable file onto the controller Additionally if this board was purchased as a bare PCB then a number of discrete components are also required to stock it Copyright 2004 DH MicroSystems Inc All trademarks mentioned in this document are the property of their respective companies Rapid40iXL PIC Prototyping PCB User Manual Board Schematic
9. nents so population of the board can be done by anyone with basic soldering skills General e Overall board dimensions 4 00 x 4 00 e PCB is a 2 layer board with solder masks on both sides and a silk screen graphic e 36x 14 pin prototyping area 504 pins total e Power and GND bus lines run the length of the prototyping area on both sides e All 33 microcontroller port pins and MCLR pin brought out to a clearly labeled strip along the top of the prototyping area e ICSP header e 4 corner mounting holes Microprocessor e Compatible with all MicroChip PIC 40 pin DIP packaged microprocessors e PIC16C64 65 662 67 74 765 77 774 620 PIC16F74 77 871 874 877 PIC18C442 452 PIC18F442 452 448 458 and others Oscillator Options e Crystal or ceramic resonator with external capacitors DC 20MHz e Ceramic resonator with internal capacitors DC Additional Resources 20MHz e RC oscillator Power Supply Options Numerous sources of information are available for both beginning and advanced users Microchip Technology Inc manufactures the PIC microcontroller line Their website can be found at www microchip com It contains datasheets for all of their microcontrollers app notes and code samples for a variety of applications Another excellent on line resource for Microchip PIC development is the Piclist at www piclist com It contains proj
10. ows in the above figure denote the signal direction between the processor and the DB9 connector For example the arrow on the TxD line shows it going to the DB9F connector from the processor the arrow on the RxD line shows it going to the processor from the DB9F connector board configured as DTE To connect to a PC use a JU1 Jumper Settings straight through wired DB9M to DB9F serial cable DTE Setting the JU1 jumpers as shown in the Both of the first examples have active RTS amp left figure above setups the DB9 ina DTE CTS signals for half duplex operation The last configuration This configuration can be used to figure above is DCE which is fully handshake looped connect to another prototyping board configured as RTS and CTS lines are now shorted together This DCE Note while this configuration is labeled DTE configuration can be used for full duplex serial obviously the gender of the DB9 connector is not communication with a PC a similar arrangement can male However if one attaches a DB9M to DB9M be used in the first DTE configuration straight through wired serial cable to the DB9F connector on the PCB then the signals and Copyright 2004 DH MicroSystems Inc All trademarks mentioned in this document are the property of their respective companies Rapid40iXL PIC Prototyping PCB User Manual Notes Contact Us We maintain a website where you can get For sales q
11. uestions or to place an order direct information on our products obtain literature and your emails to sales dhmicro com Refer to the download support files Visit us online at order form and price list available on our website for product pricing shipping rates payment instructions WWW dhmicro com and for other info we need to complete your order Our mailing address Email your technical support questions to support dhmicro com We try to respond to your DH MicroSystems Inc questions within an hour if it is received Monday P O Box 2272 through Friday between the hours of 8am to 5pm Pocatello ID 83206 2272 Mountain Time Disclaimer DH MicroSystems Inc reserves the right to modify its products or literature or to discontinue any product at any time without prior notice The customer is responsible for determining the suitability of any device for any application developed using DH MicroSystems Inc components Copyright 2004 DH MicroSystems Inc All trademarks mentioned in this document are the property of their respective companies
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