Microchip PIC18F2539 Handleiding

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 2003 Microchip Technology Inc. Advance Information DS39602C-page 1
PIC18F2539 MC EVAL KIT
Single phase induction motors are widely used in home
appliances, industrial fans, blowers, pumps, etc. When
these motors are connected to the specified supply,
they run at a constant speed. However, varying the
motor speed is desired in most of the applications.
Using power electronics and control systems, induction
motor speed can be varied. In addition to variable
speed, these drives are easy to control, provide energy
efficiency, and reduce noise.
Microchip Technology Inc. and Anacon Systems, Inc.
have jointly developed a motor control evaluation kit
used to demonstrate the PIC18F2539 motor control
microcontroller. The PIC18F2539 Motor Control
Evaluation Kit (PIC18F2539 MC Eval Kit) provides
great flexibility for the user to develop applications that
work directly with the motor control kernel that resides
in the PIC18F2539. The kit uses Programmable Motor
Control Processor Technology (ProMPTâ„¢). The
ProMPT board is a compact module containing propri-
etary circuits and a sophisticated firmware kernel
required for single phase induction motor control. The
motor control is based on open loop variable voltage
and variable frequency (VF) technology.
The PIC18F2539 MC Eval Kit includes the following
items:
• ProMPT Evaluation Board (EVB) with heat sink:
This is the single phase induction motor control
board.
• ProMPT-Eye board
• Control and display board
• Motor Control Evaluation Configuration CD:
- DashDriveMP™ V1.0 for Windows® 98,
Windows® Me, Windows® 2000 and
Windows® XP
- DashDriveMP User’s Guide
- PIC18F2539 Motor Control Evaluation Kit
User’s Guide
- Demo programs
• Input power cable
• Shaded pole induction motor
The DashDriveMP software is the Graphical User
Interface (GUI) that allows the user to configure the drive
parameters with ease and flexibility. The ProMPT EVB
with the ProMPT-Eye board, communicates with the
DashDriveMP software over the wireless media on infra-
red. The ProMPT EVB includes default motor parame-
ters and VF curves. The user can command a frequency
using the graphical interface and see the status on the
ProMPT EVB, such as motor current, bus voltage, and
heat sink temperature. The user can also modify the
parameters, including the acceleration rate, deceleration
rate and the VF curve using the DashDriveMP GUI.
The motor control circuit is built around Microchip's
FLASH microcontroller, PIC18F2539. This microcontrol-
ler has a powerful 8-bit RISC core with 24 Kbytes of on-
chip program memory, 1.4 Kbytes of data memory and
256 bytes of EEPROM. The peripherals include up to 5
channels of 10-bit Analog-to-Digital Converters (ADC),
PWMs, USART, I2Câ„¢, SPIâ„¢ and up to 21 digital I/Os.
The motor control kernel is embedded in the micro-
controller before shipping the kit. The user can develop
their own application around this kernel. A set of Appli-
cation Program Interface (API) methods are defined.
These methods are used to communicate between the
motor control kernel and application software. The appli-
cation program can be developed, debugged and exe-
cuted using MPLAB® IDE (Integrated Development
Environment). Microchip Technology also provides a low
cost In-Circuit Debugger, MPLAB® ICD 2, and the
C compiler, MPLAB® C18. The MPLAB ICD 2 debug-
ging tool allows the user to single-step, break and watch
required memory locations in the application program
while connected to the circuit. MPLAB ICD 2 can also be
used as a programmer for PICmicro® microcontrollers
with FLASH program memory.
FIGURE 1: PIC18F2539 PIN DIAGRAM
10
11
2
3
4
5
6
1
8
7
9
12
13
14 15
16
17
18
19
20
23
24
25
26
27
28
22
21
MCLR/VPP
RA0/AN0
RA1/AN1
RA2/AN2/VREF-
RA3/AN3/VREF+
RA4/T0CKI
RA5/AN4/SS/LVDIN
VSS
OSC1/CLKI
OSC2/CLKO/RA6
RC0/T13CKI
PWM2
PWM1
RC3/SCK/SCL
RB7/PGD
RB6/PGC
RB5/PGM
RB4
RB3
RB2/INT2
RB1/INT1
RB0
VDD
VSS
RC7/RX/DT
RC6/TX/CK
RC5/SDO
RC4/SDI/SDA
PIC18F2539
PIC18F2539 Motor Control Evaluation Kit
PIC18F2539 MC EVAL KIT
DS39602C-page 2 Advance Information  2003 Microchip Technology Inc.
Most of the I/O pins are brought out to the I/O expander
connector on the ProMPT EVB board. This enables the
user to develop hardware required for the application.
FIGURE 2: HARDWARE BLOCK DIAGRAM
Note: This control is suitable for Permanent
Series Capacitor (PSC) and shaded pole
single phase induction motors, to 230 volts
and 5 amps. Connecting other types of
motors may damage the PIC18F2539 MC
Eval Kit, the motor, or both. Additionally,
the drive may not function as intended.
Control
and
Display
Board
PIC18F2539 IGBT
Driver
ProMPT-Eye
Connector
ProMPT-Eye
Board
I/O Voltage
Monitor
Current
Monitor
IGBT
H-Bridge
Motor
M1
M2
G
PWM1
PWM2
+15V
+5V
GND
+18V
GND
+
-
MOV
L
N
G
1-Phase
AC Input
Gate
Drives
SMPS
ProMPTâ„¢ EVB
Expander
Isolated
 2003 Microchip Technology Inc. Advance Information DS39602C-page 3
PIC18F2539 MC EVAL KIT
FIGURE 3: SOFTWARE ARCHITECTURE
FIGURE 4: ProMPT EVB
ProMPT Motor
Hardware
Application Program
Interface (API)
Application Software(1,2)
Methods
Control Kernel
Note 1: Use MPLAB IDE V6.XX and MPLAB C18 C compiler for application software development.
2: Use MPLAB ICD 2 for programming and debugging the application software.

Product specificaties

Merk: Microchip
Categorie: Niet gecategoriseerd
Model: PIC18F2539

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