Algorithm Data Flow - Motorola M68HC08 Manual

Software Design
Run/Stop Switch
(Port)
and ADC Measurement
Fault
(IRQ) ucVoltageDCB ucVoltageDCB
Fault Protection
PTB PTB
Output Gate Signals
Clearing
6.1.1 Speed Command and ADC Measurement
Designer Reference Manual
46
Freescale Semiconductor, Inc.
Speed Pot DC Bus Voltage
(ADC)
Speed Command
ucOmegaReq ucOmegaReq
Acceleration Ramp
uiOmegaReqRamp uiOmegaReqRamp
Figure 6-1. Algorithm Data Flow
The input parameters of the process - run/stop switch and speed
potentiometer are evaluated and the speed command, ucOmegaReq, is
Software Design
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(ADC)
Hall Sensors A, B, C
uiOmegaActual uiOmegaActual
Speed PI Controller
uiDutyCycleOut uiDutyCycleOut
PWM Generation
PTB PTB
Output Gate Signals
(Port)
Sensor Handler
ucSensorVector ucSensorVector
Commutation
&
TCH0 TCH0
Generation
DRM046 — Rev 0
MOTOROLA