PIC18F2682 Datasheet, PDF (414/484 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with ECAN Technology, 10-Bit A/D and nanoWatt Technology

PIC18F2682/2685/4682/4685
25.2.5 SPECIAL CONSIDERATIONS WITH
MICROCHIP MPLAB^® IDE TOOLS
The latest versions of Microchip’s software tools have
been designed to fully support the extended instruction
set of the PIC18F2682/2685/4682/4685 family of
devices. This includes the MPLAB C18 C compiler,
MPASM assembly language and MPLAB Integrated
Development Environment (IDE).
When selecting a target device for software
development, MPLAB IDE will automatically set default
Configuration bits for that device. The default setting for
the XINST Configuration bit is ‘0’, disabling the extended
instruction set and Indexed Literal Offset Addressing
mode. For proper execution of applications developed to
take advantage of the extended instruction set, XINST
must be set during programming.
To develop software for the extended instruction set,
the user must enable support for the instructions and
the Indexed Addressing mode in their language tool(s).
Depending on the environment being used, this may be
done in several ways:
• A menu option, or dialog box within the
environment, that allows the user to configure the
language tool and its settings for the project
• A command line option
• A directive in the source code
These options vary between different compilers,
assemblers and development environments. Users are
encouraged to review the documentation accompany-
ing their development systems for the appropriate
information.
DS39761B-page 412
Preliminary
© 2007 Microchip Technology Inc.