The xc.h library is not a standalone file you download; rather, it is a bundled with Microchip’s MPLAB XC Compilers . When you install an XC compiler, the header is automatically placed in the compiler's system directory. 1. Download and Installation
#include <xc.h>
Ensure your code uses angle brackets:
The XC.h library is a popular C library used for developing applications on Xilinx FPGA (Field-Programmable Gate Array) platforms. Xilinx is a leading manufacturer of FPGAs, and the XC.h library provides a set of functions and APIs that enable developers to interact with Xilinx FPGA devices. xc.h library download