Microchip Technology MA180027 User Manuals

Table of Contents

• Chapter 1. Introduction

  11
  • 1.1 Welcome

    11
  • 1.2 PICDEM LCD 2 Demonstration Board Hardware Features

    12
    • Figure 1-1: PICDEM™ LCD 2 Hardware

      13
  • 1.3 Sample Devices

    13
  • 1.4 Sample Programs

    13
• Chapter 2. Getting Started

  15
  • 2.1 PICDEM LCD 2 as a Stand-Alone Board – Preprogrammed Device

    15
  • 2.2 PICDEM LCD 2 Used with an In-Circuit Emulator or In-Circuit Debugger

    16
    • Table 2-1: Oscillator Selection

      16
• Chapter 3. Using the Demo Software

  17
  • 3.1 Demo Firmware Operation

    17
    • Figure 3-1: Demo Program Flowchart

      18
    • Figure 3-2: Demo Program Flowchart

      19
    • Figure 3-3: Demo Program Flowchart

      20
    • Figure 3-4: Demo Program Flowchart

      21
    • Figure 3-5: Demo Program Flowchart

      22
• Appendix A. Board Technical Information

  23
  • Figure A-1: PICDEM™ LCD 2 Default Jumper Location

    24
  • A.1 Processors

    25
    • Table A-1: Part Numbers(†)

      25
  • A.2 LCD Display

    26
    • Figure A-2: PICDEM™ LCD 2 Display

      26
    • Table A-2: LCD Glass Specifications

      26
    • Figure A-3: Display Definitions

      27
    • Figure A-4: Digit Description

      27
    • Table A-3: LCD SEGx and COMx

      28
    • A.2.1 Device-Specific LCD Segment Configuration

      29
      • Table A-4: PIC18F85J90 PIM and ICE Pin/Port Comparison

        29
      • Table A-5: PIC18F85J90 LCD connections Comparison

        30
      • Figure A-5: Segment Configuration for PIC18F85J90 Devices

        31
      • Table A-6: PIC18F85j90 pORT AND pIN cOMPARISON

        31
      • Table A-7: PIC18F87J90 PIM and ICE Pin/Port Comparison

        32
      • Table A-8: PIC18F87J90 LCD connections Comparison

        33
      • Figure A-6: Segment Configuration for PIC18F87J90 Devices

        34
      • Table A-9: PIC18F87j90 pORT AND pIN cOMPARISON

        34
      • Table A-10: PIC18F8490 Pim and ICE Port/Pin Comparison

        35
      • Table A-11: pic18f8490 LCD cONNECTIONS cOMPARISON

        36
      • Figure A-7: Segment Configuration for PIC18F8490 Devices

        36
      • Table A-12: pic18f8490 pIN AND pORT cOMPARISON

        37
      • Table A-13: PIC16F946 PIM and ICE PIn/Port Comparison

        38
      • Table A-14: PIC16F946 LCD Connections cOMPARISON

        39
      • Figure A-8: Segment Configuration for PIC16F946 Devices

        39
      • Table A-15: pic16f946 pORT AND PIN cOMPARISON

        40
      • Table A-16: PIC16F/LF1946/7 PIM and ICE PIn/Port Comparison

        41
      • Table A-17: PIC16F/LF1946/7 LCD Connections cOMPARISON

        42
      • Figure A-9: Segment Configuration for PIC16F/LF1946/7 Devices

        42
      • Table A-18: pic16f/LF1946/7 pORT AND PIN cOMPARISON

        43
      • Table A-19: PIC16F917 PIM and ICE Pin/Port Comparison

        44
      • Table A-20: pic16f917 LCD cONNECTIONS cOMPARISON

        45
      • Figure A-10: Segment Configuration for PIC16F914/917 Devices

        45
      • Table A-21: pic16f917 pIN AND pORT cOMPARISON

        46
  • A.3 LED Display

    46
  • A.4 Charge Pump and VLCAP

    46
  • A.5 Resistive Ladder Versus Charge Pump

    46
    • A.5.1 Jumper JP21

      46
  • A.6 Oscillator Options

    47
  • A.7 RS-232 Serial Port

    47
  • A.8 Real-Time Clock

    47
  • A.9 Serial EEPROM

    47
  • A.10 Analog Input

    47
  • A.11 Temperature Sensor

    48
  • A.12 Switches

    48
  • A.13 ICD Connector

    48
  • A.14 Power Supply

    49
    • Figure A-11: J15 Power Supply Circuit Setting Examples

      49
    • A.14.1 Using the Adjustable Voltage Regulator

      50
      • Table A-22: PIM Prepopulated Values

        50
      • Equation A-1:

        50
      • Equation A-2:

        50
      • Table A-23: R101 and R102 Vdd Values

        51
    • A.14.2 Slide Switch (S6)

      51
  • A.15 Board Layout and Schematics

    52
    • Figure A-12: PICDEM™ LCD 2 Demonstration Board Parts Layout (Silkscreen)

      52
    • Figure A-13: PICDEM™ LCD 2 Schematic Sheet 1 of 3

      53
    • Figure A-14: PICDEM™ LCD 2 Schematic Sheet 2 of 3

      54
    • Figure A-15: PICDEM™ LCD 2 Schematic Sheet 3 of 3

      55
  • A.16 PIM Layout and Schematics

    56
    • Figure A-16: PIC18F65J90 and PIC18F85J90 PIM Layout

      56
    • Figure A-17: PIC16F914/917 PIM Layout

      56
    • Figure A-18: PIC16F946 PIM Layout

      57
    • Figure A-19: PIC16F/LF1946/7 PIM Layout

      57
    • Figure A-20: PIC18F6490/8490 PIM Layout

      58
    • Figure A-21: PIC18F87j90 PIM Layout

      58
    • Figure A-22: PICDEM™ LCD 2 PIC16F914/917 PIM Schematic

      59
    • Figure A-23: PICDEM LCD 2 PIC16F/LF1946/7 64-Pin PIM Schematic

      59
    • Figure A-24: PICDEM™ LCD 2 PIC16F946 PIM Schematic

      60
    • Figure A-25: PICDEM™ LCD 2 PIC18F6490 64-pin PIM Schematic

      60
    • Figure A-26: PICDEM™ LCD 2 PIC18F8490 80-pin PIM Schematic

      61
    • Figure A-27: PICDEM™ LCD 2 PIC18F6XJ90 64-pin PIM Schematic

      61
    • Figure A-28: PICDEM™ LCD 2 PIC18F87J90 80-pin PIM Schematic

      62
    • Figure A-29: PICDEM™ LCD 2 PIC18F85J90 80-pin PIM Schematic

      63
• Worldwide Sales and Service

  66