Freescale Semiconductor DRM079 Manuale Utente

RS08Microcontrollersfreescale.comDRM079Rev. 05/2006Designer Reference ManualVariable Speed DC Fan Control using the MC9RS08KA2

IntroductionVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 010 Freescale Semiconductor

CommutationVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 0Freescale Semiconductor 11Chapter 2 Motor Control2.1 CommutationThe typical bi-p

Motor ControlVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 012 Freescale Semiconductor2.3 Commutation WaveformsIn general, in a bi-phase m

Motor StartupVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 0Freescale Semiconductor 13Dramatic changes in the dead-time value will cause th

Motor ControlVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 014 Freescale Semiconductor

Block DiagramVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 0Freescale Semiconductor 15Chapter 3 Implementation3.1 Block DiagramThe block d

ImplementationVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 016 Freescale SemiconductorHall sensor output is connected to the MCU’s GPIO po

Control LoopVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 0Freescale Semiconductor 17Figure 3-2. Firmware Control LoopSTARTTargetPWMPeriod

ImplementationVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 018 Freescale Semiconductor3.4 Temperature Sensor MeasurementThe temperature s

Temperature Sensor MeasurementVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 0Freescale Semiconductor 19Table 3-2 shows the entire dynamic r

ImplementationVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 020 Freescale SemiconductorAs described in the previous section the overall dea

Temperature Sensor MeasurementVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 0Freescale Semiconductor 21Table 3-3. Temperature Conversion Ta

ImplementationVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 022 Freescale Semiconductor

Temperature Sensor MeasurementVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 0Freescale Semiconductor 23Appendix A. SchematicR21210K220R112

ImplementationVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 024 Freescale Semiconductor

Temperature Sensor MeasurementVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 0Freescale Semiconductor 25Appendix B. Program Listing;*******

ImplementationVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 026 Freescale SemiconductorMTIM_TCLK_FALLING equ $20MTIM_TCLK_RISING equ $30;==

Temperature Sensor MeasurementVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 0Freescale Semiconductor 27TargetPeriod ds.b 1ActualPeriod ds.b

ImplementationVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 028 Freescale Semiconductorsta KBIES ;HALL rising Edge Triggersta KBIPE ;KBI En

Temperature Sensor MeasurementVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 0Freescale Semiconductor 29;5) Read Temp Sensor Againbsr ReadSe

Variable Speed DC Fan Control using the MC9RS08KA2, Rev. 0Freescale Semiconductor 3Variable Speed DC Fan Control using the MC9RS08KA2Designer Referenc

ImplementationVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 030 Freescale Semiconductor; X indicate the coil to be driven;%%%%%%%%%%%%%%%%%

Temperature Sensor MeasurementVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 0Freescale Semiconductor 31NoReading:mov #$00, SensorReading ;

ImplementationVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 032 Freescale Semiconductorlda #255Quiet:bclr BUZZER, PTAD ; Clear buzzermov #3

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Revision HistoryVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 04 Freescale Semiconductor

Variable Speed DC Fan Control using the MC9RS08KA2, Rev. 0Freescale Semiconductor 5Table of ContentsChapter 1 Introduction1.1 Introduction . . . . .

Table of ContentsVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 06 Freescale Semiconductor

Variable Speed DC Fan Control using the MC9RS08KA2, Rev. 0Freescale Semiconductor 7Chapter 1 Introduction1.1 IntroductionThis document describes the

IntroductionVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 08 Freescale Semiconductor1.2 Freescale’s New Generation Ultra Low Cost MCUThe M

Bi-Phase BLDC MotorVariable Speed DC Fan Control using the MC9RS08KA2, Rev. 0Freescale Semiconductor 91.4 Bi-Phase BLDC MotorThe brushless DC motor (