MPLAB PICkit 4 Help

Other Things to Consider

General

1.	It is possible the error was a one-time event. Try the operation again.

2.	There may be a problem programming in general. As a test, switch to Run mode using the icon 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 board.

4.	Microchip Technology Inc. offers demonstration boards to support most of its microcontrollers. Consider using one of these applications, which are known to work, to verify correct MPLAB PICkit 4 In-Circuit Debugger ­functionality.

5.	Review debugger setup to ensure proper application setup. For more information, see “Operation”.

6.	Your program speed may be set too high for your circuit. In MPLAB X IDE, go to File>Project Properties, select PICkit 4 in Categories, then Program Options in Option categories, Program Speed and select a slower speed from the drop-down menu. The default is Normal (see figure below).

Figure: Program Speed Option

7.	There may be certain situations where the debugger is not operating properly and firmware may need to be downloaded or the debugger needs to be reprogrammed. See the following sections to determine additional actions.

Microchip Support Help Updated: 2019-09-24 09:36:23Z Help Page: 36