Xc.h Library Download May 2026

Not directly. xc.h contains compiler-specific pragmas and built-in functions that only work with Microchip’s XC compilers. For non-Microchip hardware, use standard headers like avr/io.h (for AVR+GCC) or stm32fxxx.h (for STM32).

Direct download links (current as of 2025):

If you have installed the compiler but still get the error xc.h: No such file or directory: xc.h library download

Since xc.h is bundled with the compiler, you must download and install the appropriate MPLAB XC Compiler from Microchip’s official website.

You do not need the full MPLAB X IDE to use xc.h. The command-line compiler is sufficient. After downloading the compiler (as shown above), create a simple test file: Not directly

test.c

#include <xc.h>
#include <stdint.h>
// Configure for PIC16F877A (example)
#pragma config FOSC = HS, WDTE = OFF, PWRTE = OFF, BOREN = OFF, LVP = OFF, CPD = OFF, WRT = OFF, CP = OFF Compile with: 
  xc8-cc --chip=16F877A test
void main(void) 
TRISB = 0x00;  // Set PORTB as output
while(1) 
PORTB = 0xFF;  // Turn on LEDs

Compile with:

xc8-cc --chip=16F877A test.c --output=test.hex

If the compilation succeeds, your xc.h library is correctly installed and functional.