Motorola M68HC08 - Manual (Page 129)

User Guide
Tuning for Customer Motor
DRM028 — Rev 0 Designer Reference Manual
MOTOROLA User Guide 129
Figure 6-8. Follow-up for Advanced Software Customizing
Figure 6-9. Follow-up for Software Customizing Trouble Shouting
6.5.1 Software Parameters Tuning with PC Master Software Project File
Sensorless BLDC software is provided with a PC master software
project file for on-line software parameters tuning (see
Figure 6-10 ).
This file supports:
• Remote application control
• Key software parameters modification for:
– Current parameters tuning
– Start-up parameters tuning
– Speed parameters tuning
• PC master software “oscilloscope” windows with required
variables
The remote application control uses the same control page as described
in
PC Master Software (Remote) Operating Mode . Moreover, the
tuning file incorporates subprojects for a dedicated system variables
— SET PWM FREQUENCY SET_PER_PWM
— SET CURRENT SAMPLING PERIOD SET_PER_CS
— SET PERIOD FROM PWM RELOAD TO CURRENT SAMPLING SET_PER_CS
PWM Frequency and Current Sampling Period Setting
— MEASURE FREE PHASE BACK-EMF VOLTAGE FOR THE MOTOR MUTUAL CAPACITANCE EFFECT
— MEASURE FREE PHASE BACK-EMF VOLTAGE FOR THE MOTOR INDUCTANCE CAPACITANCE EFFECT
Decision on the Motor Suitability
— CHECK MINIMAL APPLICATION SPEED
— CHECK MAXIMAL MOTOR SPEED
Decision on the Application Suitability
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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