HI-TECH® PICC-18™ Toolchain

A macro specified in the htc.h header file is used to set device Configuration Words for PIC18 MCUs:

__CONFIG(n,x);

where

`n`	Configuration register number.
`x`	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\HI-TECH Software\PICC\vx.xx\include

where vx.xx is the version number of the compiler.

Macro case should match what is in the relevant header. For htc.c, __CONFIG() is correct but __config() is not.

In “HI-TECH C Tools for the PIC18 MCU Family,” see “Configuration Fuses.”

PICC-18 Example

#include <htc.h>
//Oscillator switch enabled, RC oscillator with OSC2 as I/O pin.
__CONFIG(1, LP);
//Watch Dog Timer enable, Watch Dog Timer PostScaler count - 1:128
__CONFIG(2, WDTEN & WDTPS128);