Datasheet

Emulator User’s Guide for MPLAB X IDE
DS52085A-page 82  2013 Microchip Technology Inc.
9. The target application has somehow become corrupted or contains errors. Try
rebuilding and reprogramming the target application. Then initiate a
Power-On-Reset of the target.
10. You do not have the correct PGC/PGD pin pairs programmed in your
Configuration bits (for devices with multiple PGC/PGD pin pairs).
11. Other configuration settings are interfering with debugging. Any configuration
setting that would prevent the target from executing code will also prevent the
emulator from putting the code into debug mode.
12. Brown-out Detect voltage is greater than the operating voltage V
DD. This means
the device is in Reset and cannot be debugged.
13. You have not followed the guidelines in Chapter 3. for communication
connections.
14. The emulator cannot always perform the action requested. For example, it
cannot debug when in Run mode.
8.4 OTHER THINGS TO CONSIDER
1. It is possible the error was a one-time glitch. Try the operation again.
2. There may be a problem programming in general. As a test, switch to program-
mer mode and program the target with the simplest application possible (e.g., a
program to blink an LED). If the program will not run, then you know that
something is wrong with the target setup.
3. It is possible that the target device has been damaged in some way (e.g., over
current). Development environments are notoriously hostile to components.
Consider trying another target device.
4. Microchip Technology Inc. offers myriad demonstration boards to support most
of its microcontrollers. Consider using one of these applications, which are
known to work, to verify correct MPLAB REAL ICE in-circuit emulator
functionality. Or, use the Loop-Back Test board to verify the emulator itself
(Section 12.6 “Loop-Back Test Board”.)
5. Review emulator debug operation to ensure proper application setup (Chapter
3. “Operation”.)
6. If the problem persists contact Microchip.