The PIC16F87X family of microcontrollers has the abil- ity to write to their own program memory. This feature allows a small bootloader program to receive and write new firmware into memory. This application note explains how this can be implemented and discusses the features that may be desirable. AN732 Implementing a Bootloader for the PIC16F87X Author: Mike Garbutt OPERATION Microchip Technology Inc. The boot code begins by checking to see if there is new user code to be downloaded. If not, it starts running the existing user code. If there is new user code to be INTRODUCTION downloaded, the boot code receives and writes the The PIC16F87X family of microcontrollers has the abil- data into program……