DV007004 Microchip Technology, DV007004 Datasheet - Page 119

• Manufacturer Part Number: DV007004
• Description: PROGRAMMER UNIVERSAL PM3
• Manufacturer: Microchip Technology
• Series: MPLAB&reg PM3r
• Type: Universalr

Specifications of DV007004

• Contents: MPLAB PM3 Programming Unit, Cables, Power Supply and IDE
• Positions/sockets: 1
• Ic Product Type: Programmer, Universal
• Supported Families: PICmicro, DsPIC30F
• Kit Contents: LCD, ICSP Support, 40-pin Socket, Digital/Multimedia Card Slot
• Rohs Compliant: NA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: Microchip's PICmicro devices including dsPIC30F
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With: PICmicro And DsPIC30F DSC Devices
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

B.6
© 2006 Microchip Technology Inc.
ERROR MESSAGES – PC
These are some error messages you may receive:
• Could Not Open the Communications Port
• USB Communication Could Not Be Established
• Device is Code-Protected
• Parity Error Found in Program Memory
• Program Memory Contains Code-Protected Data
• Invalid Checksum
B.6.1
If the communications port cannot be opened, it is either because another application
has opened the port, or the port does not exist. Make sure the port number is valid and
that no other application is using it, such as another instance of MPLAB IDE.
B.6.2
If, while MPLAB PM3 is enabled using USB, the MPLAB PM3 unit is powered off and
on quickly or power is temporarily interrupted, to reestablish USB communications, you
must:
• Make sure the MPLAB PM3 power switch is off.
• Deselect MPLAB PM3 as the current programmer (Programmer>Select
• Turn the MPLAB PM3 power back on.
• Reselect MPLAB PM3 as the programmer (Programmer>Select Programmer>
• Enable the MPLAB PM3 programmer (Programmer>Enable Programmer). Wait
B.6.3
If you attempt to read a code-protected device, you will get this warning. Obtain the
original hex code from a file or a non-protected device. Also see
Section B.6.5 “Program Memory Contains Code-Protected Data”.
B.6.4
Several devices have a Configuration bit to request the calculation of parity. When the
bit is set to “ON,” the contents of the program memory are compared and assigned
“even” or “odd” parity. When set to “OFF,” the device does not perform a comparison.
On a blank device, the parity Configuration bit is set to “ON” by default. If the device is
programmed with the parity Configuration bit set to “ON,” any reprogramming of the
device may result in a parity error being displayed. This occurs because a mismatch
has been detected between the current parity and the parity last programmed.
Receiving a parity error, however, does not stop the device from being programmed.
However, if the device is programmed with the parity bit set to “OFF,” no comparison of
the program memory contents for parity will take place. The device can be
reprogrammed without receiving a message regarding parity.
All OTP devices, including those that have the parity Configuration bit, cannot
successfully reprogram any bit value of ‘0’ to a ‘1’. If a device has been programmed
with the parity Configuration bit set to “OFF,” the parity checking cannot be turned back
to “ON.” A blank device will have to be used.
Programmer>None).
MPLAB PM3).
10 seconds for Windows to recognize it. If it doesn’t work, restart the PC or try
connecting to a different USB root hub.
Could Not Open the Communications Port
USB Communication Could Not Be Established
Device is Code-Protected
Parity Error Found in Program Memory
DS51464C-page 113