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Emulator User’s Guide for MPLAB X IDE
DS52085A-page 96 2013 Microchip Technology Inc.
10.3 GENERAL CORRECTIVE ACTIONS
These general corrective actions may solve your problem:
• Read/Write Error Actions
• Emulator-to-Target Communication Error Actions
• Emulator-to-PC Communication Error Actions
• Corrupted Installation Actions
• USB Port Communication Error Actions
• Debug Failure Actions
• Internal Error Actions
10.3.1 Read/Write Error Actions
If you receive a read or write error:
1. Did you hit Abort? This may produce read/write errors.
2. Try the action again. It may be a one time error.
3. Ensure that the target is powered and at the correct voltage levels for the device.
See the device data sheet for required device voltage levels.
4. Ensure that the emulator-to-target connection is correct (PGC and PGD are
connected.)
5. For write failures, ensure that “Erase all before Program” is checked on the
Program Memory tab of the Settings dialog.
6. Ensure that the cable(s) used are of the correct length - maximum 6” for standard
communications and 10’ for high-speed communications.
10.3.2 Emulator-to-Target Communication Error Actions
The MPLAB REAL ICE in-circuit emulator and the target device are out-of-synch with
each other.
1. Select Reset and then try the action again.
2. Ensure that the cable(s) used are of the correct length - maximum 6” for standard
communications and 10’ for high-speed communications.
10.3.3 Emulator-to-PC Communication Error Actions
The MPLAB REAL ICE in-circuit emulator and MPLAB IDE are out of synch with each
other.
1. Unplug and then plug in the emulator.
1. Reconnect to the emulator.
2. Try the operation again. It is possible the error was a one time glitch.
3. The version of MPLAB IDE installed may be incorrect for the version of firmware
loaded on the MPLAB REAL ICE in-circuit emulator. Follow the steps outlined in
Section 10.3.4 “Corrupted Installation Actions”.
4. There may be an issue with the PC USB port. See Section 10.3.5 “USB Port
Communication Error Actions”.
10.3.4 Corrupted Installation Actions
The problem is most likely caused by a incomplete or corrupted installation of MPLAB
IDE.
1. Uninstall all versions of MPLAB IDE from the PC.
2. Reinstall the desired MPLAB IDE version.
3. If the problem persists contact Microchip.