tailieunhanh - Interfacing PIC Microcontrollers 2

Interfacing PIC Microcontrollers 2. Explore in detail microcontroller interfacing techniques using the popular PIC 16F877 Work through step-by-step examples interactively using circuit simulation software, supplied as assembly source code Gain the knowledge of a wide range of peripheral devices such as keyboards, displays, sensors and drives and serial communication with other processors, memory and more Use interactive simulation software to design and test circuits. | Links References and Acknowledgements Labcenter Electronics Manufacturer and supplier of Proteus VSM electronic design system Microchip Technology Inc. Manufacturer of the PIC microcontroller range and MPLAB IDE Custom Computer Services Inc. Manufacturer and supplier of PIC CCS C Compilers Data References and Trademark Acknowledgements Microchip Technology Inc. RS Components Fairchild Intel Freescale Motorola National Semiconductor Sensor Technics Densitron Honeywell SGS Thomson Maxim ST Microelectronics HBM ARM AVR Atmel Texas Vishay. I would also like to thank the dedicated teachers of engineering that I have worked with especially Melvyn Ball at Hastings College and Chris Garrett at the University of Brighton and of course Julia Bates. Martin Bates Hastings UK x Contents Part 1 Microcontroller 1 1 PIC Hardware 3 Processor System 4 PIC 16F877 Architecture 8 PIC Instruction Set 18 Special Function Registers 25 2 PIC Software 35 Assembly Language 37 Software Design 44 C Programming 47 3 Circuit Simulation 55 Basic Circuit 56 Software Debugging 63 Hardware Testing 65 Hardware Implementation 70 Program Downloading 73 xi Contents Part 2 Interfacing 77 4 Input Output 79 Switch Input 79 Switch Debouncing 81 Timer and Interrupts 84 Keypad Input 87 7- Segment LED Display 88 Liquid Crystal Display 90 5 Data Processing 101 Number Systems 101 Conversion 106 Variable Types 110 Arithmetic 112 6 Calculate Compare Capture 121 Calculator 121 Pulse Output 128 Period Measurement 130 7 Analogue Interfacing 141 8- bit Conversion 141 10-bit Conversion 145 Amplifier Interfaces 149 .