Ebook:Analog and Digital Circuits for Electronic Control System Applications

飞雪 · 发表于 2007-6-1 08:36:19

Program Memory and Data Memory .......................................................................................................................105
Peripherals ...............................................................................................................................................................106
Operation Control and Operating Modes .................................................................................................................106
Watchdog Timer ......................................................................................................................................................106
System Reset ..........................................................................................................................................................107
Interrupts .................................................................................................................................................................107
Oscillators and Clock Generators ............................................................................................................................107
Timers ....................................................................................................................................................................109
Addressing Modes ..................................................................................................................................................109
More on MSP430 Control .......................................................................................................................................110
Further Thoughts .....................................................................................................................................................114
Labels ......................................................................................................................................................................117
Instructions ..............................................................................................................................................................117
Operands .................................................................................................................................................................117
Hexadecimal Numbers ............................................................................................................................................117
Comments ...............................................................................................................................................................118
Programming Examples ..........................................................................................................................................118
Subprogram No. 1 ...................................................................................................................................................118
Subprogram No. 2 ...................................................................................................................................................127
Subprogram No. 3 ...................................................................................................................................................131
Variation of Threshold ............................................................................................................................................137
Summary .................................................................................................................................................................137
Chapter 7 Quiz .......................................................................................................................................................138
Chapter 8: Data Communications ..................................................................................................... 142
Introduction .............................................................................................................................................................142
The Data Transmission System ...............................................................................................................................142
Parallel and Serial Transmission ..............................................................................................................................142
Protocols .................................................................................................................................................................144
High-Speed Data Transmissions ..............................................................................................................................145
Serial Data Communications Advances ...................................................................................................................145
A Return to the Format ...........................................................................................................................................145
Shift Registers .........................................................................................................................................................147
USART Serial Communications ..............................................................................................................................148
The UART Function with Software. ........................................................................................................................150
Technology Advances .............................................................................................................................................150
I2C Protocol .............................................................................................................................................................150
USB .........................................................................................................................................................................152
Summary .................................................................................................................................................................156
Chapter 8 Quiz ........................................................................................................................................................157
Chapter 9: System Power and Control ............................................................................................... 160
Introduction .............................................................................................................................................................160
Voltage Regulators ..................................................................................................................................................161
Load Variations .......................................................................................................................................................162
Actual Linear Voltage Regulator Circuit ..................................................................................................................163
Voltage Regulation ..................................................................................................................................................163
Power Dissipation ...................................................................................................................................................164
Switching Voltage Regulators .................................................................................................................................165
Summary of Regulators ..........................................................................................................................................167
Power Supply Distribution ......................................................................................................................................168
Power System Supervisors ......................................................................................................................................170

飞雪 · 发表于 2007-6-1 08:42:17

Summary .................................................................................................................................................................171 Chapter 9 Quiz ........................................................................................................................................................171 Chapter 10: A Microcontroller Application ........................................................................................ 174 Introduction .............................................................................................................................................................174 Application Block Diagram ....................................................................................................................................174 System Schematic ...................................................................................................................................................177 The Display .............................................................................................................................................................177 The Microcontroller ................................................................................................................................................179 The Analog Circuitry ..............................................................................................................................................180 JTAG .......................................................................................................................................................................181 Summary of Schematic ...........................................................................................................................................182 System Development ..............................................................................................................................................182 Breadboard Construction—Powered by the PC ......................................................................................................185 The Display Board ..................................................................................................................................................189 The Analog Board ...................................................................................................................................................190 The Application Program ........................................................................................................................................191 Creating a Project in IAR Workbench© ..................................................................................................................192 Compiling the Program ...........................................................................................................................................193 Loading the Program ...............................................................................................................................................194 Troubleshooting ......................................................................................................................................................194 The Stand-Alone Breadboard .................................................................................................................................194 The PCB Circuit ......................................................................................................................................................195 Summary .................................................................................................................................................................197 Chapter 10 Quiz ......................................................................................................................................................197 Appendix A: The MSP430 Instruction Set ......................................................................................... 200 Appendix B: Standard Register and Bit Definitions for the MSP430 Microcontrollers ............................. 260 Appendix C: Application Program for Use in Chapter 10 ..................................................................... 273 Appendix D: A Refresher ................................................................................................................. 290 Ohm’s Law ..............................................................................................................................................................290 Decibel—A Quantity to Describe Gain ...................................................................................................................291 Passive Devices .......................................................................................................................................................292 The Diode—A One-Way Valve for Current .............................................................................................................294 Active Devices ........................................................................................................................................................294 Four Common Types ...............................................................................................................................................297 About the Author ........................................................................................................................... 299 Index ............................................................................................................................................ 300