User manual

mikroC PRO for dsPIC

MikroElektronika

141

Predened Globals and Constants

To facilitate dsPIC30/33 and PIC24 programming, the mikroC PRO for dsPIC30/33 and PIC24 implements a number

of predened globals and constants.

All dsPIC30/33 and PIC24 SFR registers are implicitly declared as global variables of volatile unsigned int. These

identiers have an external linkage, and are visible in the entire project. When creating a project, the mikroC PRO for

dsPIC30/33 and PIC24 will include an appropriate (*.c) le from defs folder, containing declarations of available SFR

registers and constants (such as PORTB, ADPCFG, etc). All identiers are in upper case, identical to nomenclature

in the Microchip datasheets. All dsPIC30/33 and PIC24 SFR registers are also available as structures with bitelds

named identically to the Microchip datasheets in order to facilitate bit access e.g

TRISBbits.TRISB3 = 1.

For a complete set of predened globals and constants, look for “Defs” in the mikroC PRO for dsPIC30/33 and PIC24

installation folder, or probe the Code Assistant for specic letters (Ctrl+Space in the Code Editor).

Predened project level denes

mikroC PRO for dsPIC30/33 and PIC24 provides several predened project level denes that you can use in your

project :

- First one is equal to the name of selected device for the project i.e. if P30f4013 is selected device, then P30f4013

token will be dened as 1, so it can be used for conditional compilation :

#ifdef P30F4013

...

#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 dsPIC30/33 and PIC24 compiler :

#ifdef __MIKROC_PRO_FOR_DSPIC__

...

#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_DSPIC_BUILD__ == 142

...

#endif