Datasheet

PICkit™ 3 Debug Express

3.1.3 Building and Programming the Lesson 1 Code

Build the lesson code in an executable memory image by selecting Project > Build All

in the MPLAB IDE. The memory image is stored in a .hex file in the project directory.

The results of the build will be shown in the Output window in the MPLAB IDE

workspace under the Build tab. The calls to the MCC18 compiler and Linker are

shown, along with any errors that may occur. If the build is successful, the Output

window will show BUILD SUCCEEDED, as in Figure 3-9.

FIGURE 3-9: MPLAB IDE OUTPUT WINDOW BUILD RESULTS

To program the code into the PIC18F45K20 microcontroller, the PICkit 3

Programmer/Debugger is used. Select the PICkit 3 as a programmer in the MPLAB IDE

with Programmer > Select Programmer

> 4 PICkit 3.

This will create a new tab in the Output window for the PICkit 3 programmer, where

messages from the programmer are displayed. The PICkit 3 will be initialized and

should report finding the PIC18F45K20 microcontroller on the demo board as shown

in Figure 3-10A.

The PICkit 3 must be configured to supply power to the demo board, if not, the PICkit

3 will not see the target (as evidenced by the error message in Figure 3-10A). Use

Programmer > Settings...

to display the window appearing shown in Figure 3-10B.

Navigate to the Power tab and use the slider bar to set the output voltage to 3.25V,

check the box labeled “Power target circuit from PICkit 3” and press the OK button.

Once power to the target is enabled, the device ID of the PIC18F45K20 will be

displayed (last line in Figure 3-10A).

Note: If an error that the include file p18f45k20.h cannot be found is generated,

this usually means that MPLAB C was installed without checking the Add

header file path to MCC_INCLUDE environment variable option during

setup. It is recommended to re-install MPLAB C with this option checked.