Rapid18iXL™ PIC Prototyping PCB User Manual
Contents
1. PIC_PWR Our 10 92 14 In vee VE rea dd e RAO o RAO ND Ral HS Ra PIC_PWR Rae 50 RA a Ras Eo ras y Raastocki SO Ras 10 220 RI Ra weir 4 MCLR 1 Dut oy 4 6 n vrege RBO INT 2 oo RBO eet Z REL GND ce ie RB2 5 RB2 DC Power GND os R osc1 RBS 2 RBS Connec tor a AT gt d RB4 RB4 CL ce 7 c3 C4 x m amea TL Keene 47uF lu Our a GRN LED RES 750 RBS als F RB6 HE RBG comet Sema a tn nen osce RB7 O RB7 c7 x Wes pone ee IC1 5 5v PGM PGM Pin JUL SERIAL me Selector sv CONFIG JUMPER E PIC_PWR ae 4 RET 1 4 pa Og o Po m 3 RBD OC RB6 5 PGC Sky 5 RB7 o PGD FEM aK vec z Re GE o GND Sa a cr v 10k 10k 5v 47UF DluF A 1 MCLR tae v JU3 PIC PWR eR ary s i Ra RE 2 a Disconnect Our 3 T 1 10k 470 aimee T aiies For A enewee o Buzz a a Connector cae O LEDI 10k Allie ay LED2 Bae a RS gp osi pe O 470 9 swe MER Oe 34 ca ee ca 12 13 5 o as yg Lg Te lt en o rout Rin H 590000 on O O ae gt TxD io fin Tiout H Se aae LEDI LEDe Olur RTS C 3 fein Teout H JUL eae O swi O swe a CTS oO Rout R2in ga bag GND Ice 15 C t t i 7 Partlist If purchased as a kit including parts to complete If you purchased this as a kit then2. Rapid18iXL PIC Prototyping PCB User Manual Mier eo DH MicroSystems Inc Copyright 2004 DH MicroSystems Inc All trademarks mentioned in this document are the property of their respective companies Rapid18iXL PIC Prototyping PCB User Manual Description Features This is a PCB designed to facilitate the rapid prototyping of a device based on an 18 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 an 18 pin footprint for the microcontroller and several oscillator options This board also supports in circuit programming with a dedicated ICSP header 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 Rapid18i prototyping board the Rapid18iXL board has common I O components it has the same 2 push buttons 2 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 c
3. O TxD gt O ADEE oly e O e RTS O wm CTS On TxD gt 0O RxD t O RxD t O Of CTS ae lt RTS OF are eee Q O o J9 o j9 EEE 507 5 O A Pa DBSE gt P DBSF DB9F RS232 RS232 RS23e 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 arrows 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 duple
4. 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 Microchip datasheets for the microcontroller that you select for use 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 RB4 to configure for either short either not both position 3 or 4 on the jumper labeled PGM with a short length of component lead left over from the construction of this board Refer to the Microchip 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 jus
5. 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 Stock parts in their appropriate locations paying attention to proper component alignment Solder components to the PCB with a low wattage soldering 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 and I O components are accessed through the labeled strip of pins at the top of the proto area 5V and GND for your circuit is available on both left and right sides of the proto area in labeled strips Note parts are not provided to fill all PCB component footprints The user should stock the board appropriately according to the requirements of any particular design Copyright 2004 DH MicroSystems Inc All trademarks mentioned in this document are the property of their respective companies Rapid18iXL PIC Prototyping PCB User Manual 232 Serial Interface Configuration JUL SETTING JUL SETTING JU1 SETTING O ojlo Of o O lO Olo E OVO o o JO Sie iocos DIE idllelidldo PCE ildlolo ob DCE CHANDSHAKE LOOPED i o iOa 1 ae O Of O RxD e
6. ip PIC development is the Piclist at www piclist com It contains project 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 2 push buttons e 2 LEDs 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 18 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 appropriately for use Copyright 2004 DH MicroSystems Inc All trademarks mentioned in this document are the property of their respective companies Rapid18iXL PIC Prototyping PCB User Manual Board Schematic
7. it included the following components Printed circuit board IC1 18 pin socket X1 4MHz ceramic resonator VREG1 78L05 voltage regulator TO 92 DC power receptacle JU2 ICSP header JU3 Jumper block with shorting jumper C1 47uF electrolytic capacitor j C2 C4 C5 and C8 0 1uF capacitors e IC2 232 driver IC and 16 pin socket R1 470 Ohm 1 8W resistor e e R3 10k Ohm 18W resistar e C9 to C13 0 1uF capacitors e D1 Green LED D2 1N4148 diode the user I O circuitry then it also included SW1 and SW2 tactile push button switches LED1 and LED2 red and yellow LEDs BUZZ 5V piezo buzzer Q1 2N2222 TO 92 NPN transistor R4 R7 and R8 10k Ohm 1 8W resistors R5 and R6 470 Ohm 1 8W resistors If purchased as a kit including parts to complete the RS232 interface then it also includes DB9F connector JU1 2x5 pin header amp 4 shorting jumpers C14 47uF electrolytic capacitor Copyright 2004 DH MicroSystems Inc All trademarks mentioned in this document are the property of their respective companies Rapid18iXL PIC Prototyping PCB User Manual Construction Cont Microcontroller Options This board will support any 18 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
8. omponents on its silkscreen layer and ample space between components so population of the board can be done by anyone with basic soldering skills General e Overall board dimensions 3 50 x 3 25 e PCB is a 2 layer board with solder masks on both sides and a silk screen graphic e 31 x 13 pin prototyping area 403 pins total e Power and GND bus lines run the length of the prototyping area on both sides e All 13 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 18 pin DIP packaged microprocessors e PIC16C52 54 56 58 554 556 558 61 620 621 622 71 710 711 712 715 716 717 84 PIC16E623 624 625 PIC16F627 628 818 819 83 84 and others Oscillator Options e Crystal or ceramic resonator DC 20MHz e Ceramic resonator with internal capacitors DC 20MHz e RC oscillator Power Supply Options Additional Resources 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 Microch
9. t be permanently shorted with a bit of component lead and D2 can be replaced with another bit of component lead This board will support several different voltage regulators in both 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 232 Interface Options 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 on the next page Assembly Oscillator Options Several oscillator options are available with this board cer
10. x 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 Contact Us We maintain a website where you can get For sales questions 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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