How Microcontroller Memory Works | Embedded System Project Series #16

I explain how microcontroller memory works with a code example. I use my IDE's memory browser to see where different variables end up in memory, and I demonstrate two command line tools to track how much flash memory my code occupies. Overall, knowing how memory works is important because microcontrollers have a limited amount of it, and if we are not mindful of how we write our code, we may run out of it. 0:00 Overview 1:30 Flash and RAM 3:22 From source code to memory 7:12 Code example 8:07 Different variables 12:20 Program code 13:13 Linker script 14:55 Memory browser and Map file 24:22 Surprising flash usage 27:30 Tool 1: Total flash usage 31:38 Tool 2: readelf 33:53 git commit 33:15 Last advice #embeddedsystems #cprogramming #microcontroller Code: 🌍 Links related to this video https://interrupt.memfault.com/blog/zero-to-main-1 https://embeddedartistry.com/blog/2019/04/08/a-general-overview-of-what-happens-before-main/ https://github.com/artfulbytes/nsumo_video 🌍 Find me here GitHub - https://github.com/artfulbytes Website - https://www.artfulbytes.com 👨‍💻 About me Hi and welcome. I'm Niklas, an embedded systems engineer from Sweden. On this channel, I make practical videos about embedded systems or, in general terms, about building and programming hardware.