STM32 Custom Bootloader (Part 1): Flash Layout and Application Jump

Build a *custom STM32 bootloader* from scratch and learn how to separate the bootloader and application in Flash, configure their memory regions, and safely jump from the bootloader to the application. In this tutorial, we create separate *Bootloader and Application projects* using STM32CubeMX and STM32CubeIDE. We define a shared Flash memory layout, modify the linker scripts, relocate the application's vector table, and implement the bootloader-to-application jump. The bootloader runs first after reset, prepares the MCU, and then transfers control to the application. We also generate the Bootloader and Application binary files, flash them using STM32CubeProgrammer, and verify the complete startup sequence using UART logs and LEDs. #STM32 #STM32Bootloader #EmbeddedSystems #Bootloader 📁 *Download Project Files & Full Article:* https://controllerstech.com/stm32-custom-bootloader-tutorial/ 📁 *STM32 Tutorials:* https://controllerstech.com/stm32-tutorials/ 📁 *ControllersTech Home:* https://controllerstech.com/ ### ▶︎ Related Videos 1️⃣ *Application Validation Using Magic Number:* https://youtu.be/w1NorigAWJA 2️⃣ *STM32 Custom Bootloader Playlist:* https://www.youtube.com/playlist?list=PLfIJKC1ud8ghl0i_TIhAOmo4-7KXCMw63