Motorola M68HC08 - Manual (Page 101)

Software Design
State Diagram
DRM028 — Rev 0 Designer Reference Manual
MOTOROLA Software Design 101
Figure 5-11. Running State
DONE SCHEDULER
MEASUREMENTS
SERVICE OF COMMUTATION
DONE
(CMD_F=1)
PHASE HAS BEEN
SERVICE OF RECEIVED
BACK-EMF ZERO CROSSING
DONE
(ICR_F = 1)
THE ZERO CROSSING EVENT
RECEIVED
DONE
ERROR HANDLER
SPEED CONTROL
DONE
T3 TIME-OUT
(T3_F = 1)
IRRECOVERABLE COMMUTATION ERROR
OVER-CURRENT
DONE
ENTER EXIT
(STOP_F = 1)
CURRENT MEASUREMENT
IS DONE
MOTOR STOP IS REQUIRED
FEEDBACK
PWM RELOAD INTERRUPT (PWM CENTER)
DONE
FAULT STATE
COMMUTATED (PC_F = 1)
(ICR_F = 1)
HANDLER
TIMER2 (TIM A CH3) INTERRUPT
PHASE HAS BEEN
COMMUTATED (PC_F = 1)
TIMER1 (TIM A CH1) INTERRUPT
COMMUTATION
ISR
CURRENT MEASUREMENT
ISR
BEMF ZERO CROSSING
SENSING ISR
CURRENT MEASUREMENT
IS DONE
(CMD_F = 1)
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