The MCF8315RRYEVM requires a power supply source,
which has a recommended operating range from a 4.5V to 35V. To setup and power the EVM,
follow the sequence below:
- Connect motor phases to A, B, C on connector J8.
- Do not turn on the power supply yet. Connect motor supply to VBAT/VM and PGND on connector J7.
- To enable reverse polarity protection and Pi
filter, connect to VBAT. Note that when connecting to VBAT, VM is VM – 0.7V less, due
to a diode drop in the reverse-polarity protection circuit.
- To disable reverse-polarity protection and the Pi filter, connect to VM.
- Set J3 to 5V_USB and J5 to 3V3COM to power MSP430™ from USB power supply.
- Connect the micro-USB cable to the computer.
- Turn the potentiometer fully clockwise to set the
motor to zero speed upon powerup.
- Flip the switch S1 to the right to configure
BRAKE = RUN, switch S2 to the left to configure DIR = ABC, and switch S3 to the right to
configure DRVOFF = ON
- Set J1 to POT to apply the analog voltage from
potentiometer R4 to the SPEED pin.
- Turn on the motor power supply.
- Use the potentiometer R4 to control the speed of the motor and the switches to disable the motor driver, change the direction, or apply a brake to the motor. Optionally, use the GUI (as shown in Section 3) to monitor real-time speed of the motor, put the MCF8315 into a low-power sleep mode, and read status of the LEDs.