3-Phase BLDC Motor Sensorless Control Using MC56F8013

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Application Setup6.5 Hybrid Controller UsageFigure 6-5. Executing Make CommandTable 6-3 shows how much memory is used to run the BLDC sensorless motor control application. Stacksize is set to 512 words. Heap size is set to 256 words.Table 6-3. RAM and Flash Memory Usage for Processor Expert 3.58 and CodeWarrior 7.1 (1)MC56F8013 Memory(16-bit words)Used Application + Stackwith FreeMaster (2)Used Application + Stackwithout FreeMasterProgram Flash 8K 8109 4106Program RAM 2K 78 64Data RAM 2K 1904 984NOTES:1. With optimization level 2.2. FreeMaster data, recorder, and command buffers occupy 809 words.3-Phase BLDC Motor Sensorless Control using MC56F8013, Rev. 068 Freescale Semiconductor
Chapter 7Tuning7.1 IntroductionThe BLDC sensorless application is designed to cover a wide range of BLDC motor sensorless controlconcepts. Thanks to its parametric structure, it is possible to change the behavior of the application; it canbe adjusted and tuned for different processors, power stages, and motors. In addition, the FreeMasterinterface makes this tuning process easier.7.2 ClassificationThe software is tuned for two power stages (EVM33395, Micro Power) and two motors (MCG IB2381,Pittman N2311) as described in application note. It can of course be used for other motors, but thesoftware parameters must be set accordingly.The software parameters are divided three main groups:• Group 1 — Application Related ParametersThese parameters depend on the hybrid controller used, and the application’s performance. Theyinclude the calling frequency of the speed controller, and the DC-bus voltage reading filteringconstants, and other similar parameters. These parameters are mainly defined inbldczcdefines.h.There are also some mask definitions related to the hardware used. These masks are definedmainly in bldcdrv.h and used in bldcdrv.c.• Group 2 — Power Stage Related ParametersParameters included in this group have no relation to the motor. When these parameters are setproperly, several motors with the same power stage can be driven, by tuning only parameters ingroup 1.These parameters are defined mainly in bldczcdefines.h.In this application, these parameters are called EVM33395_xxx and MP_xxx, where xxx is theparameter name.To use the desired set of parameters, in the main software there are two functions defined.– EVM33395BoardSettings()– MPBoardSettings()• Group 3 — Motor Related ParametersThese parameters are not related to the power stage. When these parameters are set properly,other power stages can be used to drive the same motor, only by tuning parameters in Group 1.These parameters are defined mainly in bldczcdefines.h.In this application, these parameters are called MOTORA_xxx and MOTORB_xxx, where xxx isthe parameter name.3-Phase BLDC Motor Sensorless Control using MC56F8013, Rev. 0Freescale Semiconductor 69
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3-Phase BLDC Motor SensorlessContro
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3-Phase BLDC Motor Sensorless Contr
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Appendix B.Glossary3-Phase BLDC Mot
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Chapter 1Introduction1.1 Introducti
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Introduction• Ability to sequenti
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Control TheoryVoltage120120Phase AP
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Control Theory2.2 Power StageThe vo
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Page 20 and 21: Control TheoryFigure 2-6 shows that
Page 22 and 23: Control Theory2.3.3.2 Effect of Mut
Page 24 and 25: Control TheoryChannel 1 in Figure 2
Page 27 and 28: Sensorless Drive Conceptcontroller.
Page 29 and 30: System Blocks Conceptcommutation co
Page 31 and 32: System Blocks ConceptThe Freescale
Page 33 and 34: System Blocks ConceptStart MotorAli
Page 35 and 36: System Blocks ConceptAfter several
Page 37 and 38: System Blocks ConceptPhase Back-EMF
Page 43 and 44: System Blocks Concept• Zero cross
Page 45 and 46: Chapter 4Hardware4.1 Hardware Imple
Page 47 and 48: Component Descriptions4.1.2 Hardwar
Page 49 and 50: Component DescriptionsThe SMOS eval
Page 51 and 52: Component DescriptionsMotorConnecto
Page 53 and 54: Chapter 5Software Design5.1 Introdu
Page 55 and 56: Main Software Flow ChartMain LoopIs
Page 57 and 58: 5.3.1 Application State Machine Pro
Page 59 and 60: Chapter 6Application Setup6.1 Appli
Page 61 and 62: Application Descriptionfault signal
Page 63 and 64: The FreeMaster software supports th
Page 65 and 66: Application Setup6.2.1 MC56F8013 EV
Page 67: Projects FilesIn this application,
Page 71 and 72: 7.3.1.2 UDCBUS_FILT_INDEXFiltering
Page 73 and 74: Application Related ParametersOutpu
Page 75 and 76: Application Related Parameterscommu
Page 77 and 78: Motor Related ParametersThis parame
Page 79 and 80: Motor Related Parameters0: A top, B
Page 81 and 82: Motor Related ParametersFor a detai
Page 83 and 84: Motor Related ParametersCommutation
Page 85 and 86: Motor Related ParametersWhere;T_Cmt
Page 87 and 88: Motor Related Parameters7.5.5.1 Par
Page 89 and 90: Motor Related ParametersThe integra
Page 91 and 92: Appendix A.References1. Design of B
Page 93 and 94: Appendix B.GlossaryAC — alternati
Page 96: How to Reach Us:Home Page:www.frees
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3-Phase BLDC Motor Sensorless Control Using MC56F8013

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