AN1913D Freescale Semiconductor / Motorola, AN1913D Datasheet - Page 34

• Manufacturer Part Number: AN1913D
• Description: 3-phase BLDC Motor Control with Sensorless Back-EMF ADC Zero Crossing Detection using DSP 56F80x
• Manufacturer: Freescale Semiconductor / Motorola

Software Design
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Up Button ISR:
increment
Omega Required Mechanical
ADC Low Limit ISR:
set Undervoltage Fault
set Overheating Fault
Emergency Stop
Interrupt
ADC Low Limit
Interrupt
Up Button
Reture
Reture
Figure 7-2. Main Software Flow Chart - Part 2
BLDC control with BEMF Zero Crossing using ADC
Freescale Semiconductor, Inc.
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PWM Fault ISR:
set Overcurrent Fault
set Overvoltage Fault
Emergency Stop
Interrupt
PWM A Fault
Reture
Down Button ISR:
decrement
Omega Required Mechanical
ADC High Limit ISR:
set Overvoltage Fault
set Overcurrent Fault
Emergency Stop
Interrupt
Down Button
Interrupt
ADC High Limit
Reture
Reture