In this episode we will break the USART driver from Episode 8 into header and source files. Using header and source files allows us to make our projects modular and we can reuse code so that we don't have to write every project from scratch. This also means that we can maintain our own library of drivers so we are not affected if an external library updates and breaks things. We will use header and source files in all of the episodes moving forward, and leverage them in our final project for this series. Relevant Links: AVR® DD Microcontroller Family: https://mchp.us/428Rxh1 AVR64DD32 Curiosity Nano: https://mchp.us/42q90BX AVR64DD32 Device Page: mchp.us/45wmmiD MPLAB® X IDE: https://mchp.us/3C06oQs MPLAB XC8 Compiler: https://mchp.us/3WyEmF7 Chapters: 00:00 Intro - In the last video 00:30 In this video 01:00 Copy previous project and rename 01:31 Set new project as Main Project 01:41 Create new header file 02:22 Change include guard condition 02:42 Header file TODOs 03:01 Moving code to header file 03:30 Include new header file in main.c 03:49 Build project to check for errors 03:57 Create new source file 04:17 Move function implementations to new source file 04:30 Include header file in new source file 04:48 Build project to check for errors 04:58 Adding extra functionality to our new library 05:18 Using enums and enum datatypes from device header file in our new header file to create function prototypes 06:50 Using enums and enum datatypes from device header file in our new source file to create function implemetations 08:15 Basic testing of our new library 08:55 Program device and open Data Visualizer 09:05 What to do if first few characters are garbled 10:04 Decision on error checking and use of enum datatypes in function definitions and implementations 10:38 Viewer can extrapolate this process for MainClockCtrl function 10:49 In the next episode #embedded #avr #microchip #microcontroller