CC5X C compiler for PICmicro

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System Requirements

The CC5X compiler uses 32 bit processing (console application) and runs on PC compatible machines using Microsoft Windows.

The installation program runs under Windows. Around 3-5 MB of free disk space is needed to complete installation.


A license file is needed to install a licensed compiler edition. This file should preferably be stored at the same folder as the installation program. Otherwise the license file has to be located during the installation process.

CC5X is ready to compile C files after installation. Header and C source files have to be created and edited by separate tools (not included), for instance in the MPLAB suite.

The CC5X files can be deleted without any uninstallation procedure.

Support for Long File Names

CC5X (WIN32 editions) supports long file names. It is also possible to use spaces in file names and include directory names.

Equivalent include directory option formats:

-I"C:\Program Files\cc5x"

Equivalent include file formats:

#include "C:\Program Files\cc5x\C file"
#include "C:\progra~1\cc5x\Cfile~1"

The alternative to long names is the truncated short format. The truncated form is decided by the file system. The best guess consists of the 6 first characters of the long name plus ~1. The last number may be different (~2) if the first 6 characters are equal to another name in the same directory.

User Interface

The CC5X compiler is a command-line program (or a console program in the Windows environment). It requires a list of command line options to compile a C source file and produce the required files.

Starting CC5X from Windows can be done from the Start->Run menu. Then type the full path name including cc5x.exe (or use Browse). The list of compiler command line options are then written to the screen. The normal way of using CC5X is to use it as a tool from an integrate environment like MPLAB.

In a MSDOS window, the compiler is invoked by writing (note that the full path may have to be written):


This produces an list of the valid arguments to the compiler.

Compiling a program is done by:

    cc5x sample1.c

Generating an assembly file:

    cc5x -a sample1.c

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