Microchip Technology MPLAB PM3 User instructions

Setting
Up
the
MPLAB®
PM3
Programmer
• SOFTWARE INSTALLATION
To
use MPLAB PM3 Device Programmer with a
PC
running Windows®, install the
MPLAB IDE software, v6.41 or greater. (Check the web site for the latest version
at: www.microchip.comldevtools.)
1.
Insert the MPLAB IDE CD-ROM into the CD-ROM drive (Example: drive D)
or download the software from the web site if newer.
2.
Follow the on-screen instructions to install the MPLAB IDE software.
Do
not
run the MPLAB IDE program yet.
• USB DRIVER INSTALLATION
For USB only. When using RS-232 communications, proceed to Step
3.
IMPORTANT:
Do
not allow the Windows OS to pick a USB driver;
it
will not work
and you will then not be able to install the proper driver without reinstalling the OS.
Follow the procedure specified here for correct USB driver setup.
Follow the USB driver installation instructions that pop up at the end ofMPLAB IDE
installation. These instructions are also
in
the MPLAB IDE installation directory
under
Driversnn
/
pm3_usb
/
ddpm3nn.htm,
where
nn
is the Windows OS
version.
Keys/Buttons
• HARDWARE SETUP
1. For USB Communication: Connect one end
of
the USB cable to a USB port
on
the PC. Connect the cable from the PC USB port to the corresponding
USB connector
on
the back
of
the MPLAB PM3 Programmer.
For RS-232 Communication: Connect one end
of
the RS-232 cable
to
a
COM port
on
the PC. Check the PC setup to see which communications port
is
available. Connect the cable from the
PC
COM port to the correspondi
ng
RS-232 connector
on
the back
of
the MPLAB PM3 Programmer.
2.
Make sure the power switch
on
the MPLAB PM3 is
in
the "O" (off) position.
Connectthe powercord
to
the power supply, connectthe powersupplyto the
MPLAB PM3, and turn the power switch to "I" (on) to apply power.
Power On Power Off
Power Input
~
PWR~
• SOFTWARE SETUP
USS Port Serial Port
USB
rgj
rf)}
\!11ll]rf)}
~
RS-232
Secure Digital/
Multi-Media Card Port
SD-MMC
1. Launch MPLAB IDE. For RS-232 Communication only: Set the COM port
FIFO buffers "
Off
' and the Flow Control to "Hardware". Refer to
Help>Topics>MPLAB PM3 for on-line help. Select Troubleshooting>
Common Problems>Advanced Serial Communications He/p>Setting up the
port manually for instructions for your operating system.
2.
From the MPLAB IDE menu, select Configure>Select Device.
In
this dialog,
choose the device you want to program and click OK.
3.
Select Programmer>Select Programmer>MPLAB PM3. Once MPLAB PM3
is
selected, additional programmer options appear
on
the Programmer
menu.
4. Select Programmer>Settings and click on the Communications tab. Select
the appropriate port for RS-232 (COM 1-4) or USB.
5.
Select Programmer>Enable Programmerto begin using the MPLAB PM3.
Select Help>Topics>MPLAB
PM
3
to
view on-line help for the programmer,
including electrical specifications, socket module installation, ICSP™
pinouts, programming a device,etc. Select Help>Topics>MPLAB
IDEto
view
on-line help
on
creating projects and debugging code.
~
MICROCHIP
© 2003 Microchip Technology Inc., 12/03 DS51450A

MPLAB®
PM3
ICSP™ Design
Guide
ICSP™
Implementation Considerations
The MPLAB® PM3 Device Programmer allows programming
of
PICmicro®
microcontrollers that are alreadyinstalled in a target board using ICSP (In-Circuit Serial
Programming). However, the application circuit must be designed to allow all the
programming signals to be directly connected to the PICmicro device and must
compensate for the following issues. Figure 1 shows a typical circuit as a starting point
when designing an application circuit for ICSP.
ISOLA
TE MCLRNPP PIN
When the MCLRNPP pin is connected to an RC circuit, theoperation
of
ICSP is affected
by the size
of
the capacitive load. It is recommended that you use a resistor
or
Schottky-
type diodeto isolate the RC circuit from the programmer. Ifthe application circuitcannot
isolate the RC circuit in this way, a series resistor up to 100 Ohm may be used to help
prevent overshoot caused by the application circuit. In addition,
if
an external reset
device is connected to MCLR, it must be isolated from the voltage applied by the
programmerto this pin during programming. Typically, a series resistor between MCLR
and the external reset device
is
used to limit the current to safe levels. See Application
Note AN820 for more details on this topic.
ISOLA
TE PGC/PGD/PGM PINS
Pins RB6/PGC and RB7/PGD must be isolated from the application circuit to prevent
the programming signals from being affected by the application circuitry. This isolation
circuit must account for RB6/PGC and RBS/PGM being inputs on the PICmicro device
and for RB7/PGD being bidirectional (can be driven by both the PICmicro device and
the programmer).
If
the design permits, these pins should NOT be used by the
applications. Consider what type
of
circuitry is connected to RB6/PGC, RB7/PGD and
RBS/PGM and decide on how to isolate these pins. Figure 1 shows typical circuitry. It
does not show any circuitry to isolate RB6/PGC, RB7/PGD and RBS/PGM on the
application circuit as this is application dependent.
Voo
Typical circuits use several hundred microfarads
of
capacitance on
Voo
to help damp
noise and ripple. However, this capacitance requires a fairly strong driver
in
the
programmerto meet the rise rate timings for
Voo
. Ifan application circuit requires more
power than the MPLAB PM3 programmer can supply, the application circuit may need
to power itself. Refer to the MPLAB PM3 on-line help for further details.
Voo-ONLY (NON-HIGH VOLTAGE) PROGRAMMING
When using Voo-only ICSP mode, care must be taken to ensure RBS/PGM does not
float high during power-on. Therefore, it is recommended that RBS/PGM be tied to
system ground through a 1
OK
resistor and that RBS/PGM is not used for the application
circuit.
lsolat10n
ClfCUltry
R
eStstor
or
Sclloltky·type
dlOde
+5
V
10K
• 4700hm·
L
1
µF
•
I
+
5V
'T
ypical
Values
Targel
M1crocontroller
Device
Note
: If
unable
to
isolate
MCLR
on
PCB.
use
senes
resistor
here
to
he!p
pre'.'cr:
cxccssi-.c
ove;shoot.
f:!:l!'!==----
-
Connect
lo
~..._....~---
MP
LAB
'
PM3
.
Note
:
Isolate
programming
signals
f
rom
appllcat1on
circull
To
Application
Ci
rcuit
1csp
·• ·
FIGURE 1: TYPICAL ICSP APPLICATION CIRCUIT
GND
The MPLAB PM3 must be at the same ground potential as the application circuit.
ADDITIONAL SYSTEM CONCERNS
Some Microchip programming specifications require the device to be programmed at
SV
. If an application circuit operates at 3V only, special considerations must be made,
such as totally isolating the PICmicro device during programming.
PROGRAMMING ENVIRONMENT
Physical distance between the programmer and the application circuit affects the load
capacitance on each
of
the programming signals. Therefore, the cable length must be
kept as short as possible and properly terminated and shielded. Otherwise, the
programming signals may be corrupted by ringing or noise.
FINAL NOTE
If
programming problems exist once the application circuit is designed, verify that all
programming signals meet the programming specification rise times and voltage levels.
~
MICROCHIP
©
2004 Microchip Technology Inc
.,
6/04 DS51474A

~
MICROCHIP
Microchip Technology Incorporated
2355 W. Chandler Blvd.
Chandler,
AZ. 85224-6199
ASSEMBLY
NUMBER: 14-00596 REV: 6 Product No: DV007004
ASSEMBLY
NAME: PRODUCT TREE, PM3 PROGRAMMER
10-00362
ASSY. PM3 UT/SOFTWARE KIT Rev:
Qty Part Number
Description
1 DS30400
DOC. MPASM ASSEMBLER QUICK REFERENCE GUIDE
1 DS51322
DOC. dsPIC30F LANGUAGE TOOLS QUICK REFERENCE CARD
1 DS30210
DOC, 1MPORTANT INFORMATION" MICROCHIP INFORMATION
1 DS30030 DOC, WARRANIY/REGISTRATION CARD
1 DS51281 DOC, MPLAB IDE
6.xx QUICK START
1 DS51123 SOFTWARE. MPLAB CDROM
11-00181 ASSY.
PM3 PROGRAMMER Rev:
Qty Part Number
Description
1 DS51474
DOC. mAB PM3 ICSP DEISGN GUIDE
1 DS51450
DOC, SETTING UP lHE mAB PM3
1
CAB0008
CABLE. usa·A-B M-M 6°
1 CAB0003 CABLE. RS-232 DATA CABLE. DB9 MIF SHIELDED 6 FT.
1 CAB0002 CABLE. IEC POWER CABLE
1 PS0015 POWER SUPPLY, 3.3V@SA.
[email protected] w/DIN CONNECTOR
1 07-00028 CABLE ASSY. PM3 ICSP CABLE
Pack List
c
6