User`s guide

A Basic Tutorial for MPLAB IDE

Use Debugger>StopWatch to bring up the StopWatch dialog. Make sure that a single

breakpoint is set at the movwf COUNT instruction, and then press Debugger>Reset

and

then Debugger>Run

to halt at the movwf COUNT instruction. With the default processor

frequency of 4 MHz, the StopWatch should show that it took 8 microseconds to reach

the first breakpoint.

FIGURE 2-26: STOPWATCH – AT FIRST BREAKPOINT

Execute Run again to go around the loop once, and note that the StopWatch shows

that it took about 49 milliseconds. To change this, you can change the values in the

delay loop.

FIGURE 2-27: STOPWATCH – AFTER DELAY

2.13 TUTORIAL SUMMARY

By completing this tutorial, you have performed the major steps for creating, building

and testing a simple project. Tasks completed include:

• Selecting the device – the PIC18F8722.

• Using the Project Wizard to create a project, and using the wizard to:

- select the MPLAB IDE built in MPASM assembler and MPLINK linker

language tools,

- add files for the project: a template file for the device selected and a linker

script to build it properly.

• Writing some simple code to send a changing value out an I/O port.

• Building the project.

• And finally, testing the code with the simulator.

These are the essential steps for getting started with MPLAB IDE. You are now ready

to continue exploring the capabilities of MPLAB IDE.