Updated library information to
reflect recent changes, including the Microchip Unified Standard Library
Corrected examples of using the
__pack specifier
Removed 'How To' on the cause or
reset, which was not appropriate for PIC32C/SAM devices
Updated the size of floating-point
types to reflect recent compiler changes
Updated information on how to ensure
a function is not removed
Updated information relating to using
a debugger
Updated information on the compiler
option controls available in the MPLAB X IDE
Updated information on the runtime
startup code, including information on the data initialization template
Provided dedicated sections on all
compiler options in addition to a summary table
Added new information on
-mdfp, -mpure-code,
-feliminate-unused-debug-symbols, -Og, and
--dinit-compress options
Some options and description were not
relevant for PIC32/SAM devices and were removed
Added divergences from the C99
language standard
Expanded configuration bit access
information
Improved information on tightly
coupled memories
Added used variable
attribute
Added
externally_visible and nopa function
attributes
Added information on placing code in
eXecute Only Memory (XOM)
Updated information on interrupt
context switch
Improved information on smart IO
features
Many general corrections and
improvements
Revision D (September 2023)
Updated references to the C++
standard to reflect that the ISO/IEC 14882:2014 C++ program language is now
supported
Defined the compiler's
implementation-defined behavior for the C++14 standard in a new section
Included additional information on interrupt operation
Removed the CCI chapter and references to this, as CCI is not supported for C/SAM
devices and the feature is disabled in the MPLAB X IDE.
The online versions of the documents are provided as a courtesy. Verify all content and data in the device’s PDF documentation found on the device product page.
