Motorola M68HC08 - Manual (Page 102)

Software Design
Designer Reference Manual DRM028 — Rev 0
102 Software Design MOTOROLA
5.5.7 Stop State
When motor stop is required, the PWM signals are disabled and the
power switches are switched off. The state diagram for this state is
shown in
Figure 5-12 .
Figure 5-12. STOP State
5.5.8 Fault State
If over-voltage, over-current, or commutation fault occurs, the motor
control PWM’s are disabled and control enters the fault state, where it
remains until RESET or clear failure (start switch set OFF or
PCMode&ClearFail). The fault state is indicated by the Red LED diode
blinking.
Clear Failure Test
CURRENT MEASUREMENT
ISR
TIMER1 (TIM A CH1) INTERRUPT
(CMD_F=1)
CURRENT MEASUREMENT
IS DONE
ENTER
EXIT
MOTOR IS STOPPED
(STOP_F = 1)
MOTOR STOP IS REQUIRED
PWM IS OFF
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Freescale Semiconductor, Inc.
For More Information On This Product,
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