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Application Note U17209EJ1V0AN
CONTENTS
CHAPTER 1 CONTROL METHOD..........................................................................................................12
1.1 Outline of Brushless DC Motor Control.................................................................................. 12
CHAPTER 2 HARDWARE CONFIGURATION.......................................................................................17
2.1 Configuration ............................................................................................................................ 17
2.2 Circuit Diagram ......................................................................................................................... 19
CHAPTER 3 SOFTWARE CONFIGURATION........................................................................................31
3.1 Control Block ............................................................................................................................ 31
3.2 Peripheral I/O............................................................................................................................. 32
3.3 Software Processing Structure ............................................................................................... 34
3.4 Flowchart................................................................................................................................... 36
3.4.1 Main processing...........................................................................................................................36
3.4.2 Motor control processing ..............................................................................................................45
3.4.3 U zero-cross point interrupt processing........................................................................................50
3.4.4 V zero-cross point interrupt processing........................................................................................51
3.4.5 W zero-cross point interrupt processing.......................................................................................52
3.4.6 10 mSEC interval interrupt processing.........................................................................................53
3.4.7 A/D converter channel 0 interrupt processing ..............................................................................54
3.4.8 A/D converter channel 1 interrupt processing ..............................................................................55
3.4.9 Hardware initialization ..................................................................................................................56
3.4.10 Common area initialization ...........................................................................................................57
3.4.11 Revolution start initialization.........................................................................................................57
3.4.12 LED display..................................................................................................................................58
3.5 Common Areas ......................................................................................................................... 59
3.6 Tables......................................................................................................................................... 60
3.7 Constant Definitions................................................................................................................. 62
CHAPTER 4 PROGRAM LIST ................................................................................................................63
4.1 Program List (V850E/IA1)......................................................................................................... 63
4.1.1 Symbol definition..........................................................................................................................63
4.1.2 Constant definition........................................................................................................................64
4.1.3 Interrupt handler setting ...............................................................................................................67
4.1.4 Startup routine setting ..................................................................................................................69
4.1.5 Main processing function..............................................................................................................72
4.1.6 LED display function.....................................................................................................................76
4.1.7 Motor control interrupt processing function ..................................................................................77
4.1.8 Zero-cross interrupt processing function ......................................................................................81
4.1.9 10 mSEC interval interrupt processing function ...........................................................................83
4.1.10 A/D converter interrupt processing function .................................................................................84
4.1.11 Hardware initialization processing function ..................................................................................84
4.1.12 Common area initialization processing function ...........................................................................86
4.1.13 Revolution start initialization processing function.........................................................................86
4.1.14 Link directive file for V850E/IA1....................................................................................................87
4.2 Program List (V850E/IA2)......................................................................................................... 89
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