Freescale Semiconductor DRM079 instruction

Variable Speed DC Fan Control using the MC9RS08KA2

Designer Reference Manual

RS08

Microcontrollers

DRM079 Rev. 0 5/2006

freescale.com

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Freescale Semiconductor DRM079 manual Variable Speed DC Fan Control using the MC9RS08KA2

Contents

Variable Speed DC Fan Control using the MC9RS08KA2 Page Revision History Variable Speed DC Fan Control using the MC9RS08KA2 Freescale Semiconductor Table of Contents Freescale Semiconductor Introduction Chapter Introduction DC Fan Reference Design Targets Freescale’s New Generation Ultra Low Cost MCU Bi-Phase Bldc Motor Diagram Bi-Phase Bldc Motor Freescale Semiconductor Commutation Chapter Motor ControlRotor Position Control Speed Control Commutation Waveforms Motor Startup Fault Detection Freescale Semiconductor Chapter Implementation Block DiagramHardware Resources Control Loop Firmware Control Loop = V DD⎜ RC⎟ Temperature Sensor Measurement ACMPSCACF, Acmpsc #63, MtimmodAcmpsc Temperature Conversion Temperature Conversion Table Freescale Semiconductor VR1 Freescale Semiconductor Appendix B Program Listing Mtimtclkfalling RtidisableMtimtclkrising Acmpoutputboth MAPADDR6NVFTRIM, Icssc #HIGH613NVICSTRM, PageselMAPADDR6NVICSTRM, Icstrm $3FFA #ICSDIV2, ICSC2 Kbipe Kbies#MTIMBUSCLKMTIMDIV256, Mtimclk #255, Mtimmod Rts Drive coil MAPADDR6SRS MTIMSCTOF, Mtimsc KBISCKBACK, Kbisc BUZZER, Ptad Kbisc#6, Mtimmod #24, Mtimmod #30, Mtimmod Page How to Reach Us