Software Implementation - General Overview - Motorola M68HC08 Manual
Low power bldc drive for fans using the mc68hc908qy4 reference design
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Software Design
OverFlow Interrupt
of Timer 0
done
Input Capture
Interrupt of Timer 1
done
IRQ Interrupt
done
Figure 6-3. Software Implementation - General Overview
6.2.1 Initialization
Designer Reference Manual
50
Freescale Semiconductor, Inc.
Over-flow
Interrupt
Handler
Input Capture
Interrupt
Handler
Fault
Interrupt
Handler
The Main Routine provides initialization of the microcontroller:
•
initializes MCU core
– enables IRQ interrupt, enable IRQ pull-up
•
COP and LVI enable (CONFIG register)
•
disable KeyBoard interrupts
•
sets-up I/O ports
Software Design
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RESET
MCU & Application
Initialization
done
Timeout
Software
Timer
done
Timeout
DRM046 — Rev 0
MOTOROLA
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