FARLY7 / bare-baremetal

An educational example of a basic bare-metal project with startup, linker, and Make files written from scratch.

bare-baremetal

This repository contains an education example of a basic bare-metal project with all fundamental files written from scratch (linker, startup, and makefile). It is meant to be a well documented example of how to implement the fundamental files required to build, examine, flash, run, and debug applications on an ARM Cortex-M Series microcontroller.

The project is for the STM32F103C8T6 Blue Pill.

STM32F103C8T6

• Flash = 128 KB
• SRAM = 20 KB

Toolchain

The project uses the arm-none-eabi-gcc toolchain.

Linker Sections

• .text - Program instructions (flash).
• .data - Initialised global and static variables.
• .bss - Unitialised variables.
• .rodata - Read-only data.