NXP Semiconductors freescale MC9S12G128 MCU User manual

3-Phase Sensorless BLDC
Motor Control Development Kit
with MC9S12G128 MCU
Quick Start Guide

Quick Start Guide
2
3-Phase Sensorless BLDC
Motor Control Development Kit
with MC9S12G128 MCU
3-Phase
BLDC Motor
MC9S12G128
Controller Board
3-Phase
Low-Voltage
Power Stage

3
3-Phase Sensorless BLDC
Motor Control Development Kit Features
• MC9S12G128 MCU (100-pin LQFP)
• MC33905S system basis chip
• MC33937A FET pre-driver
• Sensorless BLDC motor control
support
• Hardware support for Hall sensor-
based motor control
• DC-bus overvoltage, overcurrent and
undervoltage detection
• FreeMASTER instrumentation/
visualization

Quick Start Guide
4
3-Phase Low-Voltage Power Stage
Motor
Connector
UNI-3
Interface
MC33937A
Interface
MC33937A
Overcurrent
Threshold
Setup
Brake Resistor
Power Supply
Connector
Power Supply
Terminal

5
MC9S12G128 Controller Board
Fault and Hall/
Zero-Cross
LED Indicators
USB
Connector
BDM
Connector
I/O Ring to
Allow Access
to All MCU
Pin Signals
Power Supply
Connector
Rotary
Switch
Hall Sensor
Interface
Connector
PWM LED
Indicators
UNI-3
Interface
LIN
Connector
CAN
Connector
MC33937A
Interface

Quick Start Guide
6
Step-by-Step Installation Instructions
Learn how to set up and use the development kit with the FreeMASTER tool.
Install Tools
and Drivers
• Install FreeMASTER runtime
debugging tool
• Install FTDI virtual COM port driver
The FTDI virtual COM port driver
installation file is available in the
“Downloads” section at
freescale.com/automcdevkits.
For FreeMASTER application
download, please visit
freescale.com/freemaster.
Connect the
USB Cable
Connect the MC9S12G128 controller
board to the PC using the USB cable.
Allow the PC to automatically configure
the USB drivers if needed.
Connect the
Power Supply
Connect 24 V/3 A power supply to the
power connector on the 3-phase
low-voltage power stage.
Power supply operation range is 8 to
24 V. The BLDC motor used is designed
for 24 V phase voltage.
1 2
3

7
Using the
FreeMASTER Project
• Download and unzip the application
software for the MTRCKTSBNG128
available at freescale.com/
automcdevkits.
• Open the FreeMASTER project
MTRCKTSBNG128/SW/
MC9S12G128_BLDC_Sensorless/
MC9S12G128_BLDC_Sensorless.
pmp.
• Set up the RS232 communication
port and speed in the menu Project/
Options. Set the communication
speed to 19200 Bd.
The COM port number can be found using
Windows Device Manager under “Ports
(COM & LPT)” section as “USB Serial Port
(COMn).”
• Press the red STOP button in the
FreeMASTER toolbar to enable the
communication.
Succesfull communication is signalized in
the status bar.
• To start the motor, set the ON/OFF
flip-flop switch ON or short press the
rotary switch on the MC9S12G128
controller board.
• Enter the required speed by changing
the value of the “requiredSpeed”
variable in the variables watch window,
by double clicking the speed gauge,
or by rotating rotary switch clockwise
(speed up) or counterclockwise
(speed down) on the MC9S12G128
controller board. The variable value is
in revolutions per minute.
• To stop the motor, set the ON/OFF
flip-flop OFF or short press the rotary
switch on the MC9S12G128 controller
board.
• To clear pending faults, click the green
Fault Clear button or long press the
rotary switch on the MC9S12G128
controller board.
Faults present in the system are
signalized by the fault indicators, pending
faults by small red LED-like indicator next
to the respective fault indicator.
4

Quick Start Guide for TWRPI-MMA845xQQuick Start Guide
8
MC9S12G128 MCU Controller Board
Jumper Options
The following is a list of all jumper options. The default jumper settings are shown in
white text within blue boxes.
Jumper Selector Functions Connections
J3 SBC Debug
Mode Enable
MC33905S Debug mode enabled On
MC33905S Debug mode disabled Off
J4 SBC Fail-Safe
Mode Enable
MC33905S Fail-safe mode enabled On
MC33905S Fail-safe mode disabled Off
J6 CAN - L
Termination
CAN - L termination On
No CAN - L termination Off
J7 CAN - H
Termination
CAN - H termination On
No CAN - H termination Off
J8 LIN Master
Termination
LIN Master Mode On
LIN Slave Mode Off
J18 Reset
Interconnection
MCU and SBC resets are connected On
MCU and SBC resets are not connected Off
J20,
J22
Phase A Dead
Time Insertion
Phase A dead time controlled by MC33937A 1-2
~2 μs phase A dead time generated by on-board HW 2-3

9
MC9S12G128 Controller Board
Jumper Options (continued)
J21,
J23
Phase C Dead
Time Insertion
Phase C dead time controlled by MC33937A 1-2
~2 μs phase C dead time generated by onboard
HW 2-3
J24,
J25
Phase B Dead
Time Insertion
Phase B dead time controlled by MC33937A 1-2
~2 μs phase B dead time generated by onboard
HW 2-3
J26
Fault
Processing
Select 0
Faults processed by onboard HW 1-2
Faults processed by MCU software (IRQ) 2-3
J27 Fault Action
Select
Onboard flip-flops disable PWM driving signals 1-2
Onboard HW drives MC33937A EN pin low 2-3
Faults processed by MCU software Off
J28
Fault
Processing
Select 1
Faults processed by onboard HW 1-2
Faults processed by MCU software (IRQ) Off
J29
Overcurrent
Detection
Select
Overcurrent detected by onboard comparator 1-2
Overcurrent detected by MC33937A int. comparator 2-3
J32,
J33,
J35
Control Signal
Selection
Hall sensor signals 1-2
MC33937A zero cross signals 2-3
Jumper Selector Functions Connections

Quick Start Guide
For more information, visit
freescale.com/automcdevkits
Freescale and the Freescale logo are trademarks of Freescale
semiconductor, Inc., Reg. U.S. Pat. & Tm. Off. All other product or service
names are the property of their respective owners.
© 2012 Freescale Semiconductor, Inc.
Doc Number: MTRCKTSBNG128QSG REV 0
Quick Start Guide
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Visit freescale.com/support for a list of phone
numbers within your region.
Warranty
Visit freescale.com/warranty for complete
warranty information.
Quick Start Guide