3.22EjemploDRM007 Co..

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Table of Contents Section 2. Operational Description 2.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 2.2 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37 2.3 Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 2.4 User Interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39 2.5 Connectors Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . .41 2.5.1 J1 — AC Jack. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41 2.5.2 J2 — 3-Phase Motor Connector. . . . . . . . . . . . . . . . . . . . . .41 2.5.3 J3 — Single Phase Motor 1 Connector . . . . . . . . . . . . . . . .41 2.5.4 J4 — Temperature Sensor Connector . . . . . . . . . . . . . . . . .41 2.5.5 J5 — RS-232 Interface Connector . . . . . . . . . . . . . . . . . . . .42 2.5.6 J6 — External 18 Vdc Source Connector. . . . . . . . . . . . . . .42 2.5.7 J7 — Single Phase Motor 2 Connector . . . . . . . . . . . . . . . .42 2.5.8 J8 — Motor Hall Effect Sensor Connector . . . . . . . . . . . . . .42 Section 3. Schematics and Bill of Materials 3.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43 3.2 Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43 3.3 Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49 Section 4. Hardware Design Considerations 4.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55 4.2 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56 4.3 Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56 4.4 RS-232 interface and MON08 Hardware Interface. . . . . . . . . .58 4.5 Clock Source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59 4.6 Hall-Effect Sensors Interface . . . . . . . . . . . . . . . . . . . . . . . . . .60 4.7 LCD Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61 4.8 Reset Button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61 4.9 3-Phase H-Bridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63 4.10 Current Feedback and Cycle-by-Cycle Limiting . . . . . . . . . . . .64 DRM007 BLDC Motor Control Board for Industrial and Appliance Applications 8 Table of Contents MOTOROLA
Table of Contents 4.11 Voltage Feedback. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67 4.12 Current and Voltage Limiter . . . . . . . . . . . . . . . . . . . . . . . . . . .68 4.13 Heat Sink Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68 Section 5. Software Design Considerations 5.1 Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71 5.2 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72 5.3 Controller Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73 5.4 Speed Control Algorithm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76 5.4.1 Motor Stalled Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . .79 5.5 Commutation Algorithm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80 5.6 Data Flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .83 5.6.1 Processes: Latest Position Capture, Period Measuring, and Speed Calculation . . . . . . . . . . .84 5.6.2 Process Speed Controller . . . . . . . . . . . . . . . . . . . . . . . . . .84 5.6.3 Process MOSFET Gating Selection . . . . . . . . . . . . . . . . . . .84 5.6.4 Process Washing Machine. . . . . . . . . . . . . . . . . . . . . . . . . .86 5.7 Application State Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . .86 5.8 Drive State Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88 5.9 Description of Routines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89 5.9.1 Main(void). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89 5.9.1.1 Stop Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89 5.9.1.2 Waiting for Command . . . . . . . . . . . . . . . . . . . . . . . . . . .89 5.9.1.3 Displaying Actual and Reference Speed . . . . . . . . . . . . .89 5.9.1.4 Wash . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89 5.9.1.5 Spin CW and Spin CCW . . . . . . . . . . . . . . . . . . . . . . . . .90 5.9.1.6 Fixed Reference Speed . . . . . . . . . . . . . . . . . . . . . . . . . .90 5.9.2 InitPLL(void) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90 5.9.3 InitPWMMC(void) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90 5.9.4 InitTimerA(void) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90 5.9.5 InitTimerB(void) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91 5.9.6 Byte ResolveButtons(void) . . . . . . . . . . . . . . . . . . . . . . . . . .91 5.9.7 InitMotor(Byte Commanded_Operation) . . . . . . . . . . . . . . .91 5.9.8 TimerAOverflow_ISR(void). . . . . . . . . . . . . . . . . . . . . . . . . .91 BLDC Motor Control Board for Industrial and Appliance Applications DRM007 MOTOROLA Table of Contents 9
Page 1: BLDC Motor Control Board for Indust
Page 4 and 5: Revision History To provide the mos
Page 6 and 7: List of Sections DRM007 BLDC Motor
Page 10 and 11: Table of Contents 5.9.9 Signed Word
Page 12 and 13: List of Figures Figure Title Page 5
Page 14 and 15: List of Tables DRM007 BLDC Motor Co
Page 16 and 17: Introduction and Setup 1.2 Introduc
Page 18 and 19: Introduction and Setup M68HC08 CPU
Page 20 and 21: Introduction and Setup • Low-powe
Page 22 and 23: Introduction and Setup OR PRESCALER
Page 24 and 25: Introduction and Setup 1.4.3 PWM Co
Page 26 and 27: Introduction and Setup Brushless dc
Page 28 and 29: Introduction and Setup V BUS PWM1 P
Page 30 and 31: Introduction and Setup 1.6.6 Target
Page 32 and 33: Introduction and Setup The Hall sen
Page 34 and 35: Introduction and Setup To program t
Page 36 and 37: Introduction and Setup HALL EFFECT
Page 38 and 39: Operational Description 2.3 Electri
Page 40 and 41: Operational Description By pressing
Page 42 and 43: Operational Description 2.5.5 J5
Page 44 and 45: 44 Schematics and Bill of Materials
Page 50 and 51: Schematics and Bill of Materials 6
Page 52 and 53: Schematics and Bill of Materials 4
Page 54 and 55: Schematics and Bill of Materials DR
Page 56 and 57: Hardware Design Considerations 4.2
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Hardware Design Considerations 4.4
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Hardware Design Considerations VCC
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Hardware Design Considerations As a
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Hardware Design Considerations This
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Hardware Design Considerations DRM0
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Software Design Considerations 5.9.
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Software Design Considerations Clos
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Software Design Considerations The
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Software Design Considerations TIMA
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Software Design Considerations 5.5
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Software Design Considerations the
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Software Design Considerations 5.8
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Software Design Considerations inte
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Software Design Considerations DRM0
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Practical Results Figure 6-2 shows
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Practical Results Taking the rectif
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Practical Results DRM007 BLDC Motor
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Source Code 7.2 Include Files 7.2.1
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Source Code #define SCS1 (*(volatil
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Source Code 7.2.2 START08.H ; /****
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Source Code #pragma DATA_SEG DEFAUL
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Source Code // Function Headers voi
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Source Code void CtrlLCD(UBYTE cont
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Source Code 7.3 Source Code Files 7
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Source Code ZeroOut: ; LDA _startup
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Source Code Loop1: finished: } } DB
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Source Code 7.3.2 MAIN.C ; /*******
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Source Code EnableInterrupts(); do
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Source Code } else { if((PORTB & OP
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Source Code #include "MR8IO.h" #inc
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Source Code #endif /* Initialize ti
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Source Code LDX #0x12 DIV LDHX #0x0
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Source Code */ SINT16 PIController
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Source Code /**********************
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Source Code { #ifdef MOS_3_COM PVAL
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Source Code #ifdef MOS_2_COM PVAL1
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Source Code PVAL3 = _newPWM; PVAL4
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Source Code TurnOffAllPWMOutputs();
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Source Code /**********************
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Source Code void MovCursorLCD(UBYTE
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Source Code /**********************
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3.22EjemploDRM007 Co..

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