Navigate to the official MPLAB X IDE - Microchip Technology page. Scroll down to the section.
#define _XTAL_FREQ 20000000 // Define crystal frequency mplab ide download for windows 10
MPLAB IDE is a free software development environment that supports Microchip's microcontroller and digital signal processing (DSP) products. The IDE provides an intuitive interface for creating, compiling, and debugging code, making it a favorite among embedded system developers. Its features include: Navigate to the official MPLAB X IDE -