User ManualTable of ContentsChapter 1. Introduction111.1 Welcome111.2 PICDEM LCD 2 Demonstration Board Hardware Features12Figure 1-1: PICDEM™ LCD 2 Hardware131.3 Sample Devices131.4 Sample Programs13Chapter 2. Getting Started152.1 PICDEM LCD 2 as a Stand-Alone Board – Preprogrammed Device152.2 PICDEM LCD 2 Used with an In-Circuit Emulator or In-Circuit Debugger16Table 2-1: Oscillator Selection16Chapter 3. Using the Demo Software173.1 Demo Firmware Operation17Figure 3-1: Demo Program Flowchart18Figure 3-2: Demo Program Flowchart19Figure 3-3: Demo Program Flowchart20Figure 3-4: Demo Program Flowchart21Figure 3-5: Demo Program Flowchart22Appendix A. Board Technical Information23Figure A-1: PICDEM™ LCD 2 Default Jumper Location24A.1 Processors25Table A-1: Part Numbers(†)25A.2 LCD Display26Figure A-2: PICDEM™ LCD 2 Display26Table A-2: LCD Glass Specifications26Figure A-3: Display Definitions27Figure A-4: Digit Description27Table A-3: LCD SEGx and COMx28A.2.1 Device-Specific LCD Segment Configuration29Table A-4: PIC18F85J90 PIM and ICE Pin/Port Comparison29Table A-5: PIC18F85J90 LCD connections Comparison30Figure A-5: Segment Configuration for PIC18F85J90 Devices31Table A-6: PIC18F85j90 pORT AND pIN cOMPARISON31Table A-7: PIC18F87J90 PIM and ICE Pin/Port Comparison32Table A-8: PIC18F87J90 LCD connections Comparison33Figure A-6: Segment Configuration for PIC18F87J90 Devices34Table A-9: PIC18F87j90 pORT AND pIN cOMPARISON34Table A-10: PIC18F8490 Pim and ICE Port/Pin Comparison35Table A-11: pic18f8490 LCD cONNECTIONS cOMPARISON36Figure A-7: Segment Configuration for PIC18F8490 Devices36Table A-12: pic18f8490 pIN AND pORT cOMPARISON37Table A-13: PIC16F946 PIM and ICE PIn/Port Comparison38Table A-14: PIC16F946 LCD Connections cOMPARISON39Figure A-8: Segment Configuration for PIC16F946 Devices39Table A-15: pic16f946 pORT AND PIN cOMPARISON40Table A-16: PIC16F/LF1946/7 PIM and ICE PIn/Port Comparison41Table A-17: PIC16F/LF1946/7 LCD Connections cOMPARISON42Figure A-9: Segment Configuration for PIC16F/LF1946/7 Devices42Table A-18: pic16f/LF1946/7 pORT AND PIN cOMPARISON43Table A-19: PIC16F917 PIM and ICE Pin/Port Comparison44Table A-20: pic16f917 LCD cONNECTIONS cOMPARISON45Figure A-10: Segment Configuration for PIC16F914/917 Devices45Table A-21: pic16f917 pIN AND pORT cOMPARISON46A.3 LED Display46A.4 Charge Pump and VLCAP46A.5 Resistive Ladder Versus Charge Pump46A.5.1 Jumper JP2146A.6 Oscillator Options47A.7 RS-232 Serial Port47A.8 Real-Time Clock47A.9 Serial EEPROM47A.10 Analog Input47A.11 Temperature Sensor48A.12 Switches48A.13 ICD Connector48A.14 Power Supply49Figure A-11: J15 Power Supply Circuit Setting Examples49A.14.1 Using the Adjustable Voltage Regulator50Table A-22: PIM Prepopulated Values50Equation A-1:50Equation A-2:50Table A-23: R101 and R102 Vdd Values51A.14.2 Slide Switch (S6)51A.15 Board Layout and Schematics52Figure A-12: PICDEM™ LCD 2 Demonstration Board Parts Layout (Silkscreen)52Figure A-13: PICDEM™ LCD 2 Schematic Sheet 1 of 353Figure A-14: PICDEM™ LCD 2 Schematic Sheet 2 of 354Figure A-15: PICDEM™ LCD 2 Schematic Sheet 3 of 355A.16 PIM Layout and Schematics56Figure A-16: PIC18F65J90 and PIC18F85J90 PIM Layout56Figure A-17: PIC16F914/917 PIM Layout56Figure A-18: PIC16F946 PIM Layout57Figure A-19: PIC16F/LF1946/7 PIM Layout57Figure A-20: PIC18F6490/8490 PIM Layout58Figure A-21: PIC18F87j90 PIM Layout58Figure A-22: PICDEM™ LCD 2 PIC16F914/917 PIM Schematic59Figure A-23: PICDEM LCD 2 PIC16F/LF1946/7 64-Pin PIM Schematic59Figure A-24: PICDEM™ LCD 2 PIC16F946 PIM Schematic60Figure A-25: PICDEM™ LCD 2 PIC18F6490 64-pin PIM Schematic60Figure A-26: PICDEM™ LCD 2 PIC18F8490 80-pin PIM Schematic61Figure A-27: PICDEM™ LCD 2 PIC18F6XJ90 64-pin PIM Schematic61Figure A-28: PICDEM™ LCD 2 PIC18F87J90 80-pin PIM Schematic62Figure A-29: PICDEM™ LCD 2 PIC18F85J90 80-pin PIM Schematic63Worldwide Sales and Service66Size: 2.04 MBPages: 66Language: EnglishOpen manual
Data SheetTable of ContentsPreface6Introduction6About This Guide6Document Layout6Conventions Used in this Guide7Documentation Conventions7Recommended Reading8The Microchip Web Site8Development Systems Customer Change Notification Service9Customer Support9Chapter 1. Introduction101.1 Welcome101.2 PICDEM LCD 2 Demonstration Board Hardware Features11Figure 1-1: PICDEM™ LCD 2 Hardware121.3 Sample Devices121.4 Sample Programs12Chapter 2. Getting Started142.1 PICDEM LCD 2 as a Stand-Alone Board – Preprogrammed Device142.2 PICDEM LCD 2 Used with an In-Circuit Emulator or In-Circuit Debugger15Table 2-1: Oscillator Selection15Chapter 3. Using the Demo Software163.1 Demo Firmware Operation16Figure 3-1: Demo Program Flowchart17Figure 3-2: Demo Program Flowchart18Figure 3-3: Demo Program Flowchart19Figure 3-4: Demo Program Flowchart20Figure 3-5: Demo Program Flowchart21Appendix A. Board Technical Information22Figure A-1: PICDEM™ LCD 2 Default Jumper Location23A.1 Processors24Table A-1: Part Numbers(†)24A.2 LCD Display25Figure A-2: PICDEM™ LCD 2 Display25Table A-2: LCD Glass Specifications25Figure A-3: Display Definitions26Figure A-4: Digit Description26Table A-3: LCD SEGx and COMx27A.2.1 Device-Specific LCD Segment Configuration28Table A-4: PIC18F85J90 PIM and ICE Pin/Port Comparison28Table A-5: PIC18F85J90 LCD connections Comparison29Figure A-5: Segment Configuration for PIC18F85J90 Devices30Table A-6: PIC18F85j90 pORT AND pIN cOMPARISON30Table A-7: PIC18F8490 Pim and ICE Port/Pin Comparison31Table A-8: pic18f8490 LCD cONNECTIONS cOMPARISON32Figure A-6: Segment Configuration for PIC18F8490 Devices32Table A-9: pic18f8490 pIN AND pORT cOMPARISON33Table A-10: PIC16F946 PIM and ICE PIn/Port Comparison34Table A-11: PIC16F946 LCD Connections cOMPARISON35Figure A-7: Segment Configuration for PIC16F946 Devices35Table A-12: pic16f946 pORT AND PIN cOMPARISON36Table A-13: PIC16F917 PIM and ICE Pin/Port Comparison37Table A-14: pic16f917 LCD cONNECTIONS cOMPARISON38Figure A-8: Segment Configuration for PIC16F914/917 Devices38Table A-15: pic16f917 pIN AND pORT cOMPARISON39A.3 LED Display39A.4 Charge Pump and VLCAP39A.5 RESISTIVE LADDER VERSUS CHARGE PUMP39A.5.1 Jumper JP2139A.6 Oscillator Options40A.7 RS-232 Serial Port40A.8 Real-Time Clock40A.9 Serial EEPROM40A.10 Analog Input40A.11 Temperature Sensor41A.12 Switches41A.13 ICD Connector41A.14 Power Supply42Figure A-9: J15 Power Supply Circuit Setting Examples42A.14.1 Using the Adjustable Voltage Regulator43Table A-16: PIM Prepopulated Values43Equation A-1:43Equation A-2:43Table A-17: R101 and R102 Vdd Values44A.14.2 Slide Switch (S6)44A.15 Board Layout and Schematics45Figure A-10: PICDEM™ LCD 2 Demonstration Board Parts Layout (Silkscreen)45Figure A-11: PICDEM™ LCD 2 Schematic Sheet 1 of 346Figure A-12: PICDEM™ LCD 2 Schematic Sheet 2 of 347Figure A-13: PICDEM™ LCD 2 Schematic Sheet 3 of 348A.16 PIM Layout and Schematics49Figure A-14: PIC18F65J90 and PIC18F85J90 PIM Layout49Figure A-15: PIC16F914/917 PIM Layout49Figure A-16: PIC16F946 PIM Layout50Figure A-17: PIC18F6490/8490 PIM Layout50Figure A-18: PICDEM™ LCD 2 PIC16F914/917 PIM Schematic51Figure A-19: PICDEM™ LCD 2 PIC16F946 PIM Schematic51Figure A-20: PICDEM™ LCD 2 PIC18F6490 64-pin PIM Schematic52Figure A-21: PICDEM™ LCD 2 PIC18F8490 80-pin PIM Schematic52Figure A-22: PICDEM™ LCD 2 PIC18F6XJ90 64-pin PIM Schematic53Figure A-23: PICDEM™ LCD 2 PIC18F85J90 80-pin PIM Schematic54Worldwide Sales and Service57Size: 3.24 MBPages: 57Language: EnglishOpen manual
