Microchip Technology MPLAB ICE, Руководство пользователя

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2001 Microchip Technology Inc. DS51159B-page 89
General Set Up
4.9 Using MPLAB Projects
4.9.1 Creating a Project
Developing and debugging code in the MPLAB environment is based on
projects. Although emulation can be performed without having a project open,
projects have the following advantages:
• Single or multiple source files can be easily built and maintained
• Symbolic debugging is available
• The debugging environment can be saved for later use
For more information on creating and using projects, refer to the MPLAB
User’s Guide (DS51025).
4.9.2 Saving the Project
Once you have the MPLAB ICE system and software configured, it is
advisable to save your current project to retain the values for later use, or use
as a backup or default as you continue with your debugging.
Development Mode
The selected development mode is retained with the project information. To
change the development mode for a project, follow these steps:
• Open the project. The previously used development mode will be
selected.
• Change the development mode by selecting Options>Development
Mode to access the Development Mode dialog.
• Save the project.
Processor Clock
The clock source and frequency will be saved with the project information. If
the emulator’s programmable clock was being used, it will be set to the same
frequency when the project is reopened. However, if the target board clock
was being used, there is a chance that the clock may not be functioning the
next time the project is opened. When the project is reopened, the system will
attempt to use the target board clock and determine its frequency. If it appears
that the target board clock is not functioning, a warning will be issued and a 4
MHz system clock will be used. This is necessary to ensure that the emulator
and processor module are initialized correctly.