Writing custom bootloader for STMF303RE ARM Cortex M4 microcontroller

In this post we will go through the process of writing a custom STM32303RE bootloader. We will use the reference manual to find out all relevant details and use STM32CubeIDE for development. The actual board used during the development is... Read more

Effect of ENTRY directive in Linker Script on Cortex-M4 binary

My initial understanding of ARM Cortex-M4 bootstraping sequence was that when MCU was started, it loaded pointer from Reset_Handler IVT and then jumped to that address to start configuring the processor.Later on when I started doing some stuff on Linker... Read more