C30 Toolchain

PIC24F Configuration Settings

Macros are provided in device header files to set Configuration bits:

_confign(value);

where

`n`	Configuration register number.
`value`	Expression representing the value to which the specified Configuration bits will be set. May be literal but usually represented by a macro or macros ANDed together.

Macros are specified in the device header file (*.h) that is located in the Windows OS default directory:

C:\Program Files\Microchip\MPLAB C30\support\PIC24F\h

Macro case should match what is in the relevant header. For example, _CONFIG1 is correct but _config1 is not.

Example – PIC24F MCUs

#include “p24Fxxxx.h”
//JTAG off, Code Protect off, Write Protect off, COE mode off, WDT off
_CONFIG1( JTAGEN_OFF & GCP_OFF & GWRP_OFF & COE_OFF & FWDTEN_OFF )
//Clock switching/monitor off, Oscillator (RC15) on,
// Oscillator in HS mode, Use primary oscillator (no PLL)
_CONFIG2( FCKSM_CSDCMD & OSCIOFNC_ON & POSCMOD_HS & FNOSC_PRI )

dsPIC30F/33F/PIC24H Configuration Settings

Macros are provided in device header files to set Configuration bits:

_reg(value);

where

`_reg`	Configuration register name macro.
`value`	Expression representing the value to which the specified Configuration bits will be set. May be literal but usually represented by a macro or macros ANDed together.

Macros are specified in the device header file (*.h) that is located in the Windows OS default directory:

C:\Program Files\Microchip\MPLAB C30\support\device\h

where device is the abbreviation of the selected 16-bit device, i.e., PIC24H, dsPIC30F, or dsPIC33F.

Macro case should match what is in the relevant header. For example, _FOSC is correct but, _fosc is not.

In the “MPLAB® C Compiler for PIC24 MCUs and dsPIC® DSCs User’s Guide” (DS50001284), see “Configuration Bits Setup Macros.”

Example – dsPIC30F DSCs

#include “p30fxxxx.h”
//Clock switching and failsafe clock monitoring off,
// Oscillator in HS mode
_FOSC(CSW_FSCM_OFF & HS);
//Watchdog timer off
_FWDT(WDT_OFF);
//Brown-out off, Master clear on
_FBORPOR(PBOR_OFF & MCLR_EN);

Example – dsPIC33F/PIC24H Devices

#include “p33fxxxx.h”
// Use primary oscillator (no PLL)
_FOSCSEL(FNOSC_PRI);
//Oscillator in HS mode
_FOSC(POSCMD_HS);
//Watchdog timer off
_FWDT(FWDTEN_OFF);
//JTAG off
_FICD(JTAGEN_OFF);