使用PIC16F684的步进电机控制

Thisapplicationnotedescribeshowtodriveabipolar

steppingmotorwiththePIC16F684.TheEnhanced

CaptureComparePWM(ECCP)moduleisusedto

implementamicrosteppingtechniqueknownashigh-

torquemicrostepping.Themicrocontroller’s8MHz

internaloscillatorallowsthesignalsgeneratedbythe

ECCPmoduletoachievefrequenciesabovethe

audiblerange.AN906StepperMotorControlUsingthePIC16F684Author:RestonConditMICROSTEPPINGMicrochipTechnologyInc.Singlestepping,orturningasteppingmotoratitsratedstepsize,resultsinlessthansmoothmovement.MicrosteppingisatechniqueusedtosmooththeINTRODUCTIONmotor’smovementbetweenfullstepsandtoimprove