Predefined Globals and Constants

To facilitate ARM programming, the mikroC PRO for ARM implements a number of predefined globals and constants.

All ARM SFR registers are implicitly declared as global variables of volatile unsigned long. These identifiers have an external linkage, and are visible in the entire project. When creating a project, the mikroC PRO for ARM will include an appropriate (*.c) file from defs folder, containing declarations of available SFR registers and constants (such as GPIO, RCC, etc). All identifiers are in upper case, identical to nomenclature in the datasheets.

For a complete set of predefined globals and constants, look for “Defs” in the mikroC PRO for ARM installation folder, or probe the Code Assistant for specific letters (Ctrl+Space in the Code Editor).

Predefined project level defines

mikroC PRO for ARM provides several predefined project level defines that you can use in your project :

First one is equal to the name of selected device for the project i.e. if LM3S9B95 is selected device, then LM3S9B95 token will be defined as 1, so it can be used for conditional compilation :

    #ifdef LM3S9B95
    ...
    #endif

The second one is value of frequency (in kHz) for which the project is built :

    #ifdef __FOSC__ == 80000
    ...
    #endif

Third one is for identifying mikroC PRO for ARM compiler :

    #ifdef __mikroc_PRO_FOR_ARM__
    ...
    #endif

Fourth one is for identifying the build version. For instance, if a desired build version is 142, user should put this in his code :

    #if __mikroc_PRO_FOR_ARM_BUILD__ == 142 
    ...
    #endif

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