AN1857 Freescale Semiconductor / Motorola, AN1857 Datasheet - Page 30

• Manufacturer Part Number: AN1857
• Description: A 3-Phase ac Induction Motor Control System Based on the MC68HC908MR32
• Manufacturer: Freescale Semiconductor / Motorola

Application Note
Software Design
PC-Master
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Features of the PC-Master communication software include:
Features of the power factor correction software include:
This section describes the design and functionality of the system
software that executes in the MMDS05/08 emulator system or in a
programmed MR32, resident on a daughter board, plugged into the
control board.
PC-Master communication software is intended to be used as an aid in
developing motor control software. All of the required actions of the
motor control software are manipulated by the operator when using the
PC-Master software. The PC-Master software executes on a PC that is
connected to the isolated RS-232 serial port on the control board. The
PC-Master software executing on a PC uses Microsoft Internet Explorer
as a user interface to the PC.
A small program is resident in the MR32 that communicates with the PC-
Master software to parse commands, return status information to the
PC, and process control information from the PC.
The actions controlled by the PC-Master are:
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Freescale Semiconductor, Inc.
For More Information On This Product,
Ability to read/write any RAM (random-access memory) variable
Read any ROM (read-only memory) variable
Execute PC-Master commands
Automatic calibration of the control PFC loop
Automatic input voltage detection 110 V/60 Hz and 230 V/50 Hz
Start/Stop control
Motor speed setpoint
Reset the drive system
Motor rotation direction control (CW/CCW)
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MOTOROLA
AN1857