If your IDE cannot find xc.h , ensure the compiler is correctly selected in the project properties under XC8/XC16/XC32 Global Options .
When you write C code for a PIC microcontroller, you need a way to access the specific hardware addresses and registers of that specific chip. The xc.h file acts as a . It includes other, more specific header files based on the microcontroller you have selected in your project. xc.h library download
Visit the MPLAB XC Compilers page on the Microchip website. If your IDE cannot find xc
: Including it allows you to use Special Function Register (SFR) names (like PORTB or TRISB ) directly in your C code. If your IDE cannot find xc.h
and follow the setup wizard.